Climatological Report (Annual)
Issued by NWS Portland, OR

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000
CXUS56 KPQR 010018
CLAPDX

ANNUAL CLIMATE REPORT
NATIONAL WEATHER SERVICE PORTLAND OR
415 PM PST THU DEC 31 2015

...PORTLAND 2015 WEATHER IN REVIEW...

HIGHLIGHTS...
...2015 PASSES 1992 AS WARMEST YEAR ON RECORD...
...WARMEST SUMMER (JUNE 22-SEPT 21) ON RECORD...
...CRAZY RECORD BREAKING WINDSTORM IN LATE AUGUST...
...WETTEST DECEMBER ON RECORD WITH OVER A FOOT OF RAIN...

================================================================
2015 MONTHLY WEATHER RECAPS...

JANUARY...A RATHER UNEVENTFUL MONTH OF WEATHER. INCOMING FRONTS
   WERE WEAK...AND BROUGHT LESS THAN NORMAL RAINFALL.  HIGH
   PRESSURE MID MONTH GAVE REGION STRING OF MILD DAYS. STRONGEST
   FRONT MOVED ACROSS REGION ON THE 17TH-18TH...WITH BRINGING
   ABOUT 2 TO 3 INCHES OF RAIN TO THE REGION. DURING THIS TIME
   SOUTHERLY WINDS GUSTED 45 TO 50 MPH.

FEBRUARY...WAS A VERY MILD FEBRUARY...WITH AVERAGE TEMPERATURE
   5.4 DEG ABOVE NORMAL. THIS IS THE WARMEST FEBRUARY ON RECORD
   AT PORTLAND AIRPORT WITH AVERAGE TEMP OF 49.2 (PREVIOUS RECORD
   WAS FEBRUARY 1991). NORMALLY...FEBRUARY SEES ONLY 2 DAYS
   WITH HIGH TEMPERATURES AT OR ABOVE 60 DEG. IN 2015... THERE
   WERE 7 DAYS (RECORD IS 10 DAYS...BACK IN 1991).

MARCH...TREND OF MILD CONDITIONS CONTINUE INTO MARCH. LIKE
   FEBRUARY...AVERAGE TEMPERATURES WERE WELL ABOVE NORMAL.
   21 OF THE 31 DAYS SAW TEMPERATURES ABOVE 60 DEG (NORMAL
   IS 8 WHILE RECORD IS 23 DAYS IN 1992). FRONTS THAT PUSHED
   ACROSS REGION BROUGHT DECENT RAINFALL. BUT WORST WEATHER
   OCCURRED ON THE IDES OF MARCH...WHEN 2 TO 4 INCHES OF RAIN
   FELL CAUSING SOME MINOR FLOODING AND A SMALL LANDSLIDE IN
   THE WEST HILLS. STRONG SOUTH WINDS GUSTED 55 TO 65 MPH...
   CAUSING WIDESPREAD DAMAGE TO TREES AND PROPERTY AS WELL
   AS POWER OUTAGES TO OVER 45000 CUSTOMERS.

APRIL...RATHER NICE MONTH OF WEATHER. TEMPERATURES WARMED IN
   THE 70S SEVERAL TIMES...AND EVEN THE LOWER 80S ON THE 20TH
   AND ON THE 27TH. RAINFALL WAS BIT BELOW NEAR NORMAL...WITH
   MOST RAIN FALL BETWEEN THE 10TH AND 14TH. TYPICAL SPRING
   WEATHER ON THE 5TH THROUGH THE 9TH...WITH SHOWERS AND A FEW
   THUNDERSTORMS. THUNDERSTORMS ON THE NIGHT OF THE 5TH BROUGHT
   A MEMORABLE LIGHTNING DISPLAY TO THE METRO AREA...BUT ALSO
   SOME LIGHTNING DAMAGE. SEVERAL TREES IN VANCOUVER WERE SPLIT
   WHEN LIGHTNING HIT THEM. ONE OF THE STORMS WAS RATHER STRONG
   ON THE 8TH AS IT PRODUCED HAIL THAT COVER THE GROUND FROM
   HILLSBORO TO PARTS OF PORTLAND. THUNDERSTORMS ON THE 24TH
   PRODUCED GUSTY WINDS AND MINOR DAMAGE IN THE BORING AREA.

MAY...MILD AND MOSTLY DRY. THIS WAS ONE OF THE MORE PLEASANT
   MAYS IN RECENT YEARS...GREAT FOR GARDENERS AND OUTDOOR
   ENTHUSIASTS. HIGH PRESSURE OVER THE REGION KEPT THE METRO
   MILD AND DRY FOR THE LATTER HALF OF MAY. MAY CLOSED WITH
   4 OF ITS LAST 5 DAYS WITH TEMPERATURES IN THE 80S.

JUNE...JUNE STARTED RAINY AND COOL...WITH TEMPERATURES IN THE
   LOWER TO MIDDLE 60S. AFTER THE 3RD...NOT MUCH IF ANY RAIN
   OCCURRED. HIGH PRESSURE ESTABLISHED ITSELF OVER THE PAC NW
   AND COASTAL WATERS...ACTING AS A BLOCK TO INCOMING FRONTS.
   AS A RESULT...DRY AND WARMER TEMPERTURES OCCURRED. BY THE
   6TH AND 7TH...AFTERNOON HIGHS CLIMBED INTO THE 90S. BRIEF
   COOL DOWN BACK TO 70S...BUT WARM WEATHER RETURNED BY 15TH.
   JUNE CLOSED WITH ITS LAST 9 DAYS WITH TEMPERATURES AT LEAST
   IN THE MID 80S...WITH 5 DAYS IN THE 90S. IT WAS THE WARMEST
   JUNE ON RECORD FOR PORTLAND AREA...DATING BACK TO 1874.

   AIRPORT PDX RECORDS: (SINCE 1940).
       WARMEST AVERAGE HIGHS: 82.7 DEG (OLD RECORD 79.5 IN 1992)
       WARMEST AVERAGE LOWS:  57.9 DEG (OLD RECORD 57.1 IN 1948)
       WARMEST MEAN TEMP:     70.3 DEG (OLD RECORD 67.4 IN 1992)
       RECORD MOST DAYS WITH AT LEAST 90 DEG...     9 DAYS
                (PREVIOUS RECORD WAS 6 DAYS (1970 & 2003)
       RECORD MOST DAYS WITH AT LEAST 80 DEG...    21 DAYS
                (PREVIOUS RECORD WAS 16 DAYS IN JUNE 1987)
       RECORD MOST CONSECUTIVE DAYS WITH TRACE OR LESS RAIN
            27 DAYS  (RECORD WAS 23 DAYS IN 1985).
       RECORD MOST CONSECUTIVE DAYS WITH NO RAIN (NOT A DROP)...
            24 DAYS  (RECORD WAS 18 DAYS IN 1951).
       TIED MOST DAYS IN JUNE WITH NO RAIN (NOT EVEN A DROP)...
            26 DAYS  (RECORD IS 26 DAYS IN 1977 & 1987)

   DOWNTOWN PORTLAND RECORDS (SINCE 1874).
       WARMEST AVERAGE HIGHS: 81.0 DEG (OLD RECORD 79.4 IN 1889)
       WARMEST MEAN TEMP:     69.2 DEG (OLD RECORD 67.5 IN 1940)
       RECORD MOST DAYS WITH AT LEAST 80 DEG...    18 DAYS
                (PREVIOUS RECORD WAS 16 DAYS IN JUNE 1918)
       2ND MOST CONSECUTIVE DAYS WITH TRACE OR LESS RAIN
            27 DAYS  (RECORD IS 28 DAYS IN 1932).
       3RD MOST CONSECUTIVE DAYS WITH NO RAIN (NOT A DROP)...
            24 DAYS  (RECORD IS 26 DAYS IN 1883).
       2ND MOST DAYS IN JUNE WITH NO RAIN (NOT EVEN A DROP)...
            26 DAYS  (RECORD IS 27 DAYS IN 1996)

JULY...HIGH PRESSURE OVER THE NORTHEAST PACIFIC GREW STRONGER IN
   JULY. THIS MAINTAINED A RELATIVELY DRY AIR MASS OVER THE AREA.
   BUT ONSHORE FLOW WAS NOT AS STRONG AS NORMALLY EXPECTED. SO
   EVENING COOLING WAS NOT AS PRONOUNCED...LEAVING MANY NIGHTS
   IN THE UPPER 50S TO LOWER 60S. AS FOR OVERNIGHT LOWS OF AT
   LEAST 60 DEG...THERE WERE 22 SUCH NIGHTS...WHICH WAS 1 SHORT
   OF THE RECORD SET IN 1985. WHILE MOST DAYS WERE DRY...SOME
   RAIN CAME WITH A FRONT ON 25TH AND 26TH. OVERALL A NICE JULY.
   IT WAS THE 2ND WARMEST JULY...WITH AVERAGE TEMP OF 73.9 DEG.

AUGUST...RATHER NORMAL AUGUST...THOUGH WAS ON THE WARMER SIDE
   THANKS IN PART TO MILDER NIGHTS. AGAIN...WITH WEAKER ONSHORE
   FLOW...THE TYPICAL COOLING THAT OCCURS IN THE EVENING WAS NOT
   AS PRONOUNCED. MANY NIGHTS FAILED TO DROP BELOW 60 DEG. IN
   FACT...BETWEEN THE 8TH AND 21ST...TEMPERATURE ONLY DROPPED
   BELOW 60 DEG ONLY ONCE. SMOKE FROM FIRES EAST OF THE CASCADES
   DRIFTED INTO THE PORTLAND AREA FROM TIME TO TIME...LOWERING
   AIR QUALITY AND CREATING DIFFICULTIES IN BREATHING FOR SOME.
   SOME OF THE WORST CONDITIONS WERE ON 22ND AND 23RD.

   A FRONT ARRIVE ON THE 29TH...PUSHING SMOKE BACK TO THE EAST
   AND BRINGING RAIN AND BREEZY WINDS. THIS WAS INDEED A VERY
   RARE WEATHER EVENT...AS MOST STRONG WINDS WEST OF CASCADES
   ARE ASSOCIATED WITH THUNDERSTORMS...NOT STRONG LOW PRESSURE
   ARRIVING ON THE COAST. SOUTH WINDS GUSTED 40 TO 50 MPH
   ACROSS THE METRO AREA...WITH SOME DAMAGE TO TREES MAINLY
   DUE TO HEAVY FOLIAGE. MOST COMMON WERE SPOTTY POWER OUTAGES.
   AT THE PORTLAND AIRPORT...A GUST OF 43 MPH WAS THE STRONGEST
   GUST EVER RECORDED IN MONTH OF AUGUST.

SEPTEMBER...THIS WAS A VERY PLEASANT MONTH...WITH NEAR NORMAL
   TEMPERATURES AND RAINFALL. THE HIGH TEMPERATURE OF 81 ON THE
   29TH ENSURED A NEW RECORD FOR THE SUMMER OF 2015... THE MOST
   NUMBER OF DAYS WITH TEMPERATURES AT LEAST 80 DEG. WHEN ALL
   WAS SAID AND DONE FOR THE WARM SEASON... THERE WERE A TOTAL
   88 DAYS WITH TEMPERATURES OF AT LEAST 80 DEG. PREVIOUS RECORD
   WAS 84 DAYS IN 1967...WHILE NORMAL IS 54 DAYS.

   THERE WERE ALSO 29 DAYS WITH TEMPERATURES OF AT LEAST 90 DEG.
   OLD RECORD WAS 24 DAYS BACK IN 2009...WHILE NORMAL IS 12 DAYS.

OCTOBER...LIKE SEPTEMBER...OCTOBER WAS A PLEASANT MONTH WITH
   MILD TEMPERATURES AND NEAR NORMAL RAINFALL. HOWEVER...THANKS
   IN PART TO MORE CLOUD COVER AT NIGHT...OVERNIGHT LOWS WERE
   MUCH MORE MILD THAN NORMAL. OCTOBER 2015 TIED OCTOBER 2014
   AS THE WARMEST OCTOBER. WEATHER WAS UNEVENTFUL FOR THE
   MOST PART.  BUT THAT CHANGED IN THE CLOSING DAYS OF OCTOBER.
   AN ACTIVE HURRICANE SEASON OVER THE TROPICAL PACIFIC OCEAN
   CONTRIBUTED TO BOOSTING THE MOISTURE CONTENT OF STORMS HEADED
   FOR THE PAC NW. ONE SUCH STORM ARRIVED ON HALLOWEEN...WITH
   A LOT OF RAIN AND GUSTY WINDS TO THE REGION. IT WAS THE
   SECOND WETTEST HALLOWEEN ON RECORD...WITH 2 TO 4 INCHES OF
   RAIN FALLING ACROSS THE METRO AREA BETWEEN NOON AND 7 PM
   (WETTEST EVER WAS 1994). A COMMON SIGHT ACROSS REGION WAS
   FLOODED INTERSECTIONS AND OTHER LOW-LYING AREAS DUE TO A
   COMBINATION OF TOO MUCH RAIN FALLING TOO FAST AND LEAF-
   CLOGGED DRAINS. MOST OF THE HEAVY RAIN ENDED BY 8 PM WITH
   CLEARING SKIES AFTERWARDS. SEVERAL SHORT TERM RAINFALL
   RECORDS WERE SHATTERED SUCH AS THE MOST RAIN IN 3 HOURS
   FOR OCTOBER (1.30 INCHES) (SEE LIST OF NEW RECORDS BELOW).
   IT WAS INDEED A RATHER ILL TRICK BY MOTHER NATURE.

NOVEMBER...IT WAS A RATHER BENIGN MONTH...THOUGH A BIT ON THE
   COOLER SIDE. SEVERAL FRONTS PUSHED ACROSS AREA...WITH THE
   STRONGEST ABOUT MID-MONTH. RAINFALL WITH THIS FRONT CREATED
   SOME URBAN FLOODING....MAINLY DUE TO POOR DRAINAGE IN LOW
   LYING AREAS AND CONTINUED LEAF-CLOGGED STORM DRAINS. HIGH
   PRESSURE OVER THE REGION LATE IN THE MONTH BROUGHT SUNSHINE
   AND CHILLY EASTERLY WINDS. DESPITE MILD AFTERNOONS WITH
   TEMPERATURES IN THE UPPER 40S TO LOWER 50S...OVERNIGHT
   TEMPERATURES DROPPED INTO THE LOWER TO MIDDLE 20S.

DECEMBER...STARTED WET...AND GOT VERY WET. PERSISTENT STORM
   TRACK KEPT VERY MOIST FRONTS PUSHING INTO THE REGION. ONE
   OF THE MORE NOTABLE WAS ASSOCIATED WITH A MOIST ATMOSPHERIC
   RIVER...AND BROUGHT WIND AND RAIN TO THE REGION ON THE 6TH
   THROUGH THE 8TH. ON THE 7TH...A NEW CALENDAR RECORD FOR RAIN
   IN DECEMBER WAS SET...WITH 2.67 INCHES. THIS NARROWLY MISSED
   THE ALL-TIME WETTEST DAY OF OF 2.69 INCHES (SET IN NOV 1996).
   HOWEVER... 3.22 INCHES FELL IN A 24-HOUR PERIOD FROM THE 6TH
   INTO THE 7TH...SETTING THE 3RD WETTEST SUCH PERIOD. WIDESPREAD
   URBAN FLOODING OCCURRED...WITH JOHNSON CREEK RACING TO A NEW
   RECORD LEVEL. COOLER WEATHER BY THE 10TH...BUT REMAINED WET.
   THUNDERSTORMS ROLLED ACROSS REGION ON THE 10TH... WITH GUSTY
   WINDS. EVEN A TORNADO OCCURRED IN BATTLE GROUND IN AFTERNOON
   OF THE TENTH. DECEMBER ENDED WITH ANOTHER NEW RECORD...THE
   MOST RAINFALL FOR DECEMBER AT PORTLAND AIRPORT. 15.24 INCHES
   BREAKS THE OLD RECORD OF 13.35 INCHES SET IN DEC 1996.

   ON THE 23RD AND 24TH...MUCH COOLER AIR PUSHED INTO THE REGION.
   THIS BROUGHT SHOWERS...AND SNOW LEVELS DOWN AS LOW AS 700 FEET
   AT TIMES. WHILE OCCASIONAL WET FLAKES FELL IN THE AIR ON VALLEY
   FLOOR...ANY ACCUMULATION OF SNOW REMAINED IN THE HIGHER HILLS.
   MOST SIGNIFICANT SNOW OCCURRED JUST TO NORTH OF PORTLAND...
   FROM SCAPPOOSE TO LA CENTER WHERE STEADY LIGHT SNOW EARLY ON
   THE 24TH ACCUMULATED 1 TO 3 INCHES. THE COOL UNSETTLED WEATHER
   LASTED THROUGH THE 29TH...WITH OCCASIONAL LIGHT SNOW OVER THE
   HIGHER HILLS AROUND THE PORTLAND/VANCOUVER AREA. FINALLY...
   STRONG HIGH PRESSURE OVER THE PACIFIC NORTHWEST BROUGHT COOL
   AND BREEZY CONDITIONS TO THE REGION ON THE 30TH AND 31ST...
   WITH ABUNDANT SUNSHINE. DESPITE THE SUNSHINE...TEMPERATURES
   WERE HELD IN THE 30S DUE TO THE COLD EAST WINDS. EAST WINDS
   IN THE WESTERN COLUMBIA GORGE GUSTED 65 TO 80 MPH...WITH GUSTS
   ACROSS THE EAST PORTLAND METRO GUSTING 40 TO 55 MPH.

=================================================================
NEW RECORDS SET IN 2015 (PREVIOUS RECORD IN PARENTHESES)
     + INDICATES MOST RECENT OF MULTIPLE OCCURRENCES

JANUARY...
  17TH   TIED. DAILY WARM HIGH TEMP          59  (   59 /1975)
  17TH   NEW.  DAILY PRECIPITATION         1.80" ( 1.76"/1997)

FEBRUARY...
   6TH   TIED. DAILY WARM LOW TEMP           48  (   48 /1953)
   7TH   NEW.  DAILY WARM LOW TEMP           49  (   48 /1955)
  12TH   NEW.  DAILY WARM HIGH TEMP          63  (   62 /1947)
  15TH   NEW.  DAILY WARM HIGH TEMP          65  (   63 /1996)
   FEB   NEW.  WARMEST FEB (AVG TEMP)      49.2  ( 48.8 /1991)

MARCH...
  14TH   NEW.  DAILY WARM LOW TEMP           52  (   50 /1961)
  14TH   NEW.  DAILY PRECIPITATION         1.44" ( 0.83"/1967)
  15TH   NEW.  DAILY PRECIPITATION         0.94" ( 0.88"/1946)
  14-15  NEW.  MOST RAIN IN 24HRS IN MAR   1.88" ( 1.83"/1943)
  23RD   NEW.  DAILY PRECIPITATION         1.00" ( 0.62"/1986)
  26TH   TIED. DAILY WARM HIGH TEMP          73  (   73 /1994)

APRIL...  NO NEW RECORDS.

MAY...
  11TH   NEW.  DAILY PRECIPITATION         0.39" ( 0.29"/1987)
  21ST   NEW.  DAILY WARM LOW TEMP           58  (   57 /1942)

JUNE...
   6TH   TIED. DAILY WARM LOW TEMP           61  (   61 /1948)
  24TH   TIED. DAILY WARM LOW TEMP           62  (   62 /1992)
  26TH   TIED. DAILY WARM LOW TEMP           66  (   66 /1973)
  27TH   NEW.  DAILY WARM LOW TEMP           71  (   62 /2013)
  28TH   NEW.  DAILY WARM LOW TEMP           69  (   64 /1948)
   JUN   NEW.  WARMEST AVERAGE HIGHS       82.7  ( 79.5 /1992)
   JUN   NEW.  WARMEST AVERAGE LOWS        57.9  ( 57.1 /1948)
   JUN   NEW.  WARMEST AVERAGE             70.3  ( 67.4 /1992)
   JUNE  NEW.  MOST DAYS HIGH OF 80+         21  (   16 /1987)
   JUNE  NEW.  MOST DAYS HIGH OF 90+          9  (    6 /2003+)
   JUNE  NEW.  MOST DAYS LOWS OF 60+         11  (    8 /1969)
   JUNE  NEW.  MOST CONSECUTIVE DAYS WITH ZERO RAINFALL
               IN ANY JUNE                   24  (   18 /1951)
   JUNE  NEW.  MOST CONSECUTIVE DAYS WITH TRACE OR LESS RAINFALL
               IN ANY JUNE                   27  (   23 /1985)
   JUNE  TIED. MOST DAYS W/TRACE OR LESS     26  (   26 /1987+)

JULY...
   2ND   NEW.  DAILY WARM LOW TEMP           67  (   63 /2013)
   3RD   NEW.  DAILY WARM LOW TEMP           66  (   65 /1942)
   4TH   NEW.  2ND WARMEST JUL 4TH EVER.  HI 95  (   97 /1972)
   5TH   NEW.  DAILY WARM LOW TEMP           67  (   61 /2014)
   5TH   NEW.  DAILY WARM HIGH TEMP          96  (   94 /1960)

AUGUST...
   1ST   NEW.  DAILY WARM HIGH TEMP          98  (   95 /2009)
   2ND   NEW.  DAILY WARM LOW TEMP           67  (   65 /2009)
  18TH   NEW.  DAILY WARM HIGH TEMP          96  (   93 /1946)
  19TH   TIED. DAILY WARM HIGH TEMP          97  (   97 /2009)
  29TH   NEW.  STRONGEST AUG WIND GUST    43 MPH (39 MPH/1953)

SEPTEMBER...
   6TH   NEW.  DAILY COOL HIGH TEMP          60  (   61 /1947)
  12TH   NEW.  DAILY WARM LOW TEMP           63  (   61 /2013)

OCTOBER...
   8TH   TIED. DAILY WARM LOW TEMP           57  (   57 /2010+)
  15TH   TIED. DAILY WARM HIGH TEMP          80  (   80 /1991)
  18TH   TIED. DAILY WARM LOW TEMP           58  (   58 /1940)
  31ST   NEW.  MOST RAIN IN 10-MIN IN OCT  0.26" ( 0.25"/1982)
  31ST   NEW.  MOST RAIN IN 15-MIN IN OCT  0.33" ( 0.27"/2009)
  31ST   NEW.  MOST RAIN IN 30-MIN IN OCT  0.53" ( 0.32"/2009)
  31ST   NEW.  MOST RAIN IN 1 HR IN OCT    0.71" ( 0.44"/1997)
  31ST   NEW.  MOST RAIN IN 2 HRS IN OCT   1.06" ( 0.75"/1997)
  31ST   NEW.  MOST RAIN IN 3 HRS IN OCT   1.30" ( 0.94"/1994)
  31ST   NEW.  2ND WETTEST HALLOWEEN EVER WITH 1.97" OF RAIN.
   OCT   TIED. WARMEST AVERAGE             60.1  ( 60.1 /2014)

NOVEMBER...
  13TH   TIED. DAILY WARM LOW TEMP           51  (   51 /1999+)

DECEMBER...
   7TH   NEW.  DAILY WARM LOW TEMP           46  (   44 /1946)
   7TH   TIED. DAILY WARM HIGH TEMP          63  (   58 /1970)
   7TH   NEW.  DAILY PRECIPITATION         2.67" ( 0.86"/1996)
   8TH   NEW.  DAILY WARM LOW TEMP           56  (   46 /1991)
   8TH   TIED. DAILY WARM HIGH TEMP          62  (   58 /1970)
   8TH   NEW.  DAILY PRECIPITATION         1.66" ( 0.89"/1971)
   9TH   TIED. DAILY WARM LOW TEMP           47  (   46 /2014+)
  17TH   NEW.  DAILY PRECIPITATION         1.87" ( 1.02"/1972)
   DEC   NEW.  MOST RAIN FOR ANY DEC DAY   2.67" ( 2.17"/1942)
   DEC   NEW.  MOST RAIN IN 24 HRS IN DEC  3.22" ( 2.59"/1977)
   DEC   NEW.  MOST CONSECUTIVE DAYS WITH RAINFALL
                 0.01 INCH OR MORE       24 DAYS (   20  /2001)
   DEC   TIED. MOST CONSECUTIVE DAYS WITH RAINFALL
                 0.10 INCH OR MORE       13 DAYS (   13 /1996)
   DEC   NEW.  MOST CONSECUTIVE DAYS WITH RAINFALL
                 0.25 INCH OR MORE       13 DAYS (    9 /1972)
   DEC   NEW.  MOST DAYS IN ANY DEC WITH RAINFALL
                 0.25 INCH OR MORE       17 DAYS (   16 /1968)
   DEC   NEW.  WETTEST DECEMBER AT PDX    15.24" (13.35"/1996)

YEAR    NEW.  MOST DAYS W/HIGHS 80+ DEG      88  (   84 /2009)
        NEW.  MOST DAYS W/HIGHS 90+ DEG      29  (   24 /2009)
        NEW.  MOST DAYS W/LOWS  60+ DEG      55  (   50 /2014)
        NEW.  WARMEST SUMMER ON RECORD.   AVERAGE TEMP   71.4
        NEW.  WARMEST YEAR ON RECORD...WITH AVERAGE TEMP 57.4
                BREAKS PREVIOUS WARMEST YEAR 1992 (AVG T 56.2)
        NEW.  MOST CONSECUTIVE DAYS WITH RAINFALL FOR YEAR
               WITH 0.25 INCH OR MORE    13 DAYS (   11 /1970)

============================================================
2015 PORTLAND AIRPORT TEMPERATURE DATA
      (+ BY DATE INDICATES LAST OF SEVERAL OCCURRENCES LISTED)

      |--- AVERAGES ----| MEAN T DEPART| EXTREME TEMPS & DATE|
MONTH |HIGHS LOWS   MEAN|  FROM NORMAL | HIGHEST      LOWEST |
--------------------------------------------------------------
JAN     49.9  37.0   43.4   +2.0 DEG     60 /24TH    24 / 1ST
FEB     56.8  41.5   49.2   +5.4 DEG     64 /15TH    32 /24TH+
MAR     62.8  42.0   52.4   +4.2 DEG     73 /26TH    30 / 4TH+
APR     62.9  42.6   52.8   +0.5 DEG     82 /27TH    35 /15TH
MAY     70.7  51.5   61.1   +2.8 DEG     85 /28TH    45 / 7TH
JUN     82.7  57.9   70.3   +6.7 DEG     95 /26TH    51 /14TH+
JUL     86.7  61.1   73.9   +4.7 DEG    103 /30TH    54 /27TH
AUG     84.3  60.5   72.4   +2.9 DEG     98 / 1ST    54 /22ND
SEP     74.6  53.4   64.0   -0.5 DEG     94 /11TH    45 /27TH
OCT     69.0  51.2   60.1   +5.2 DEG     85 / 5TH    42 /23RD
NOV     52.0  38.5   45.3   -1.3 DEG     64 / 6TH    24 /30TH+
DEC     47.7  39.2   43.5   +3.1 DEG     63 / 7TH    29 /30TH

2015    66.7  48.1   57.4   +2.9 DEG    101 /JUL 30  24 /NOV 30+
NORMAL  63.2  45.7   54.5

DAYS IN 2015 WITH TEMPERATURE OF...
       |------ MAXIMUM TEMP --------||------ MINIMUM TEMP ---|
       <=32  60+  70+  80+  90+ 100+  <=20  <=32   60+   70+
--------------------------------------------------------------
JAN      0    2    0    0    0    0      0     6    0     0
FEB      0    7    0    0    0    0      0     2    0     0
MAR      0   21    2    0    0    0      0     4    0     0
APR      0   17    7    2    0    0      0     0    0     0
MAY      0   29   18    6    0    0      0     0    0     0
JUN      0   30   27   21    9    0      0     0   11     1
JUL      0   31   30   25   12    2      0     0   22     0
AUG      0   31   31   23    6    0      0     0   19     0
SEP      0   30   22    8    2    0      0     0    2     0
OCT      0   30   13    3    0    0      0     0    1     0
NOV      0    3    0    0    0    0      0     9    0     0
DEC      0    2    0    0    0    0      0     2    0     0

2015     0  233  150   88   29    2      0    23   55     1
NORMAL   2  197  120   54   12    1      2    30   21     0

FIRST/LAST OCCURRENCES OF...        IN 2015      NORMAL
  LAST 32 DEG OR COLDER IN SPRING    MAR  5     (MAR 19)
  FIRST 70+ DEG OF THE YEAR          MAR 26     (MAR 30)
  FIRST 80+ DEG OF THE YEAR          APR 20     (MAY 10)
  FIRST 90+ DEG OF THE YEAR          JUN  7     (JUN 16)

  LAST 90+ DEG OF THE YEAR           SEP 12     (SEP  8)
  LAST 80+ DEG OF THE YEAR           OCT 15     (SEP 29)
  LAST 70+ DEG OF THE YEAR           OCT 16     (OCT 18)
  FIRST 32 DEG OR COLDER IN FALL     NOV 21     (NOV 15)

==============================================================
2015 PORTLAND AIRPORT RAINFALL DATA...

       TOTAL  DEPARTURE  DAYS WITH AT LEAST...  GREATEST IN
MONTH   RAIN  FM NORMAL   0.01 0.10 0.50 1.00   24HRS & DATE
---------------------------------------------------------------
JAN     3.33    -1.55      13    6    2    1    1.80 JAN 17
FEB     3.71    +0.05      13    9    3    0    1.00 FEB 5-6
MAR     4.71    +1.03      12    8    3    2    1.88 MAR 14-15
APR     1.75    -0.98      14    7    0    0    0.43 APR 13-14
MAY     0.59    -1.88       5    2    0    0    0.49 MAY 11-12
JUN     0.40    -1.30       3    1    0    0    0.30 JUN 1
JUL     0.57    -0.08       3    2    0    0    0.34 JUL 26
AUG     0.66    -0.01       3    3    0    0    0.49 AUG 29-30
SEP     1.26    -0.21       8    2    1    0    0.66 SEP 17
OCT     3.69    +0.69      11    5    2    1    2.15 OCT 30-31
NOV     4.49    -1.14      16   11    3    0    1.91 OC 31-NO 1
DEC    15.24    +9.79      28   24   12    3    3.22 DEC 6-7

  2015  40.40   +4.37     129   80   26    7    3.22 DEC 6-7
NORMAL  36.03             155   91   19    4

PORTLAND WATER YEAR 2014-15 (1 OCT 2014 THROUGH 30 SEP 2015)
      31.96 INCHES      4.07 INCHES BELOW NORMAL

============================================================
2015 PORTLAND AIRPORT WIND AND PRESSURE DATA...

       AVERAGE SPEED (MPH)    STRONGEST WIND GUST
    2015 (NORMAL)       DIRECTION   SPEED   DATE
-------------------------------------------------------------
JAN      6.19.3EAST        33 MPH  JAN 14
FEB      7.1    8.7 SOUTH       43 MPH  FEB  9
MAR      5.8    7.7 SOUTH       58 MPH  MAR 15
APR      5.6    7.1 NORTHWEST   35 MPH  APR 21
MAY      5.8    6.7WEST        29 MPH  MAY  4
JUN      7.0    7.0 NORTHWEST   28 MPH  JUN 26
JUL      6.7    7.2 NORTHWEST   27 MPH  JUL 15
AUG      6.7    6.8 SOUTH       43 MPH  AUG 29
SEP      5.4    6.2 EAST        24 MPH  SEP 28
OCT      5.7    6.3 SOUTH       38 MPH  OCT 31
NOV      7.3    8.0 SOUTH       43 MPH  NOV 17
DEC     10.4    9.3 SOUTHWEST   55 MPH  DEC 21

2015     6.3    7.5SOUTH      58 MPH  MAR 15

HIGHEST PRESSURE IN 2015...30.58 INCHES    MAR 15
LOWEST PRESSURE IN 2015...29.17 INCHES    DEC 21

============================================================
PORTLAND AIRPORT CLIMATE PERIOD OF RECORDS... 1940 TO 2015
PORTLAND AIRPORT CLIMATE NORMALS BASED ON...  1981 TO 2010
============================================================

DATA COMPILED BY ROCKEY
NATIONAL WEATHER SERVICE PORTLAND OREGON

ONLINE AT:     WEATHER.GOV/PORTLAND


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