Climatological Report (Annual)
Issued by NWS Portland, OR

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000
CXUS56 KPQR 312152
CLASLE

ANNUAL CLIMATE REPORT
NATIONAL WEATHER SERVICE PORTLAND OR
152 PM PST SUN DEC 31 2017

...SALEM 2017 WEATHER IN REVIEW...

================================================================
2017 MONTHLY WEATHER HIGHLIGHTS...

JANUARY...RATHER CHILLY AND SHOWERY FOR FIRST TWO WEEKS, WITH
    SNOW SHOWERS FALLING ON THE HILLS AROUND TOWN. ONE TO 2
    INCHES OF SNOW FELL IN AND AROUND SALEM ON THE 2ND, BUT
    ACCUMULATIONS WERE HIT AND MISS SO MOST GOT NO SNOW. MORE
    SNOW SHOWERS ON THE 4TH BROUGHT SPOTTY 1 TO 2 INCHES OF SNOW
    BUT HEAVIER ACCUMULATIONS WERE WELL SOUTH OF SALEM. BUT, IT
    WAS COLD ON 5TH TO 6TH, WITH OVERNIGHT TEMPERATURES IN THE
    LOWER TEENS.  THEN CAME A MAJOR WINTER STORM. ON THE 7TH,
    3 TO 5 INCHES OF SNOW FELL ON THE SALEM AND SURROUNDING
    AREA, WITH HEAVIEST REPORTED IN SALEM SOUTH HILLS.  FOR THE
    FIRST TIME IN 30 YEARS, OREGON DEPARTMENT OF TRANSPORTATION
    ORDERED MANDATORY CHAINS ON ALL VEHICLES TRAVELING BETWEEN
    WILSONVILLE AND EUGENE ON INTERSTATE 5.

    THE SNOW TRANSITIONED TO FREEZING RAIN ON THE 10TH, WITH ICE
    ACCUMULATIONS OF 0.50 TO 1.00 INCH. THIS CAUSED SIGNIFICANT
    DAMAGE TO TREES AND POWER LINES. CLEARING SKIES AND COLD
    FOR THE 14TH AND 15TH, WITH OVERNIGHT TEMPS 15 TO 20 DEG.

    MILDER AIR RETURNED ON THE 16TH AND 17TH, WITH TEMPERATURES
    WARMING BACK INTO THE 50S DURING THE DAYS. STRONG FRONT ON
    THE 18TH BROUGHT RAIN AND GUSTY SOUTH WINDS. AFTERWARDS,
    WEATHER BECAME MORE TRANQUIL. WHILE NOT THE RECORD COLDEST,
    JANUARY 2017 WAS THE COLDEST JANUARY SINCE 1993.

FEBRUARY...MILD WEATHER CONTINUED, WITH TYPICAL FEB WEATHER.
     SEVERAL FRONTS BROUGHT WIND AND HEAVY RAIN TO THE REGION,
     MAINLY ON THE 4TH/5TH, 15TH/16TH, AND ANOTHER 20TH/21ST.
     NONE OF THE LOCAL RIVERS FLOODED, BUT THERE WAS AREAS
     WITH PONDING OF WATER AND MINOR URBAN FLOODING IN AREAS
     OF POOR DRAINAGE. IT WAS THE WETTEST FEBRUARY ON RECORD
     FOR SALEM, WITH 13.41 INCHES OF RAIN, SURPASSING THE
     PREVIOUS RECORD OF 13.01 INCHES SET BACK IN FEB 1996.

MARCH...RATHER MILD AND WET MARCH, WITH TWICE NORMAL RAINFALL.
     BUT MARCH START RATHER COOL, WITH SNOW FALLING TO WEST
     OF SALEM AND IN THE TURNER HILLS. AREAS JUST EAST OF
     INDEPENDENCE REPORTED 4 TO 6 INCHES OF HEAVY WET SNOW.
     RAIN FELL ON 25 DAYS OF THE 31 IN THE MONTH, BUT FELL
     2 DAYS SHORT OF THE RECORD 27 DAYS SET BACK IN 2011.

APRIL...A LOT OF THE DAYS IN APRIL HAD RAIN, 22 DAYS TO BE
     EXACT. RECORD MOST IS 25 DAYS, SET IN 2003 AND 1993
     (NORMAL IN APRIL IS ABOUT 15 DAYS).

     A STRONG FRONT PUSHED ACROSS THE REGION ON THE 7TH, WITH
     SOUTH WINDS GUSTING 45 TO 60 MPH.  WINDS DAMAGED TREES
     AND BROUGHT DOWN POWER LINES. AT ONE POINT I-5 NEAR
     ALBANY WAS CLOSED FOR A FEW HOURS IN THE MORNING DUE TO
     POWER LINES DOWN ON THE INTERSTATE.

MAY...TO THE DELIGHT OF GARDENERS, AND THOSE TIRED OF THE WET
     WINTER, MAY BROUGHT WARM DAYS AND QUITE A FEW DRY DAYS.
     RAINFALL WAS MORE THAN HALF OF NORMAL, WITH MOST OF THAT
     FALLING BETWEEN THE 11TH AND 16TH. LITTLE IF ANY RAIN
     FELL AFTER THE 17TH OF THE MONTH.

JUNE...A QUITE PLEASANT, BUT UNEVENTFUL JUNE. MAJORITY OF THE
     RAIN FOR THE MONTH FELL BETWEEN THE 7TH AND 10TH. SHOWERS
     ON THE 10TH AND 11TH DID PRODUCE SOME EXCITEMENT, AS A
     FUNNEL CLOUD WAS REPORTED TO EAST OF CORVALLIS.

     AFTER THE 16TH, LITTLE IF ANY RAIN FELL. WITH THIS DRY
     WEATHER, TEMPERATURES WARMED INTO THE 80S AND 90S, WITH
     WARMEST OCCURRING ON THE 24TH WITH 101 DEG.

JULY...GREAT SUMMER MONTH. WARM DAYS, WITH 27 DAYS OF HIGHS
     OF AT LEAST 80 DEG. FORTUNATELY, NIGHTS WERE COMFORTABLE
     WITH MANY OVERNIGHT LOWS IN THE 50S. NO RAIN FELL, MAKING
     JULY 2017 THE 15TH JULY SINCE 1892 WITH NO RAIN (OTHERS
     WERE 2013, 1967, 1952, 1933, 1931, 1929, 1926, 1925, 1922
     1914, 1910, 1899, 1896 AND 1893).

AUGUST...NEARLY A CARBON COPY OF JULY, AS WAS VERY WARM.
     EACH OF THE FIRST 3 DAYS OF AUGUST SET NEW CALENDAR DAY
     HIGH TEMPERATURES FOR THEIR DATE. THE HIGH OF 107 DEG
     ON 2ND OF AUG WAS ONE DEG SHY OF TYING THE ALL-TIME
     WARMEST TEMPERATURE IN SALEM (108). AUGUST FINISHED
     AS THE WARMEST AUGUST ON RECORD EVER, PASSING PREVIOUS
     RECORD HOLDER OF 2014.

     RAIN RECORDED ON ONLY 2 DAYS (TRACE ON 11TH, AND 0.14
     INCH ON 13TH). DAILY BREEZY NORTH WINDS, COMBINED WITH
     THE WARM AND DRY CONDITIONS OF JULY AND AUGUST, BROUGHT
     AN INCREASE OF ROADSIDE AND BRUSH FIRES. AFTER RECORD
     HEAT TO START THE MONTH (ABOVE 100 DEG FOR 1ST TO 3RD),
     THUNDERSTORMS PUSHED UP THE CASCADES. LIGHTNING STARTED
     MANY FIRES, SOME OF WHICH BECAME QUITE LARGE IN THE WARM
     AND DRY CONDITIONS. THE LARGE FIRES INCLUDE THE REBEL
     FIRE ON THE SOUTH FORK OF THE MCKENZIE RIVER AND THE
     WHITEWATER FIRE NEAR MARION FORKS, BUT OTHER FIRES WERE
     OCCURING IN CENTRAL OREGON BACK ACROSS SOUTHWEST OREGON
     AND INTO NORTHERN CALIF. WINDS ALOFT OFTEN BROUGHT SMOKE
     TO THE CENTRAL WILLAMETTE VALLEY, CREATING UNHEALTHY AIR
     QUALITY AT TIMES.

SEPTEMBER...DRY AND WARM CONDITIONS CONTINUED FOR FIRST PART
     OF SEPTEMBER. MAIN STORY FOCUSED ON THE SMOKE/WILDFIRES
     OF THE CASCADES, SUCH AS WHITEWATER AND REBEL. SMOKE WAS
     A DAILY PART OF LIFE FOR THROUGH MID-MONTH, THOUGH THE
     WORST SEEMS TO BE FIRST 6 DAYS OF THE MONTH, AS LIGHT
     SOUTHEAST WINDS ALLOWED HEAVY SMOKE TO DRIFT OVER FROM
     THE FIRES OUT AND OVER THE REGION. SOUTH WINDS HIGHER
     UP IN THE ATMOSPHERE BROUGHT SMOKE FROM NORTHERN CALIF
     AND SOUTHWEST OREGON OVER THE REGION AT TIMES AS WELL.

     A BREAK IN THE HEAT BROUGHT HIGHS IN THE 60S ALONG WITH
     ONSHORE FLOW BETWEEN THE 17TH AND 23RD. THE ONSHORE
     FLOW PUSHED THE SMOKE ALOFT BACK TO THE EAST, GIVING
     THE LOCAL AREA A RESPITE FROM THE SMOKE.

     DURING THE COOLER SHOWERY WEATHER OF THE 17TH TO 23RD,
     A THUNDERSTORM ON THE 19TH PRODUCED A TORNADO NEAR
     LACOMB. NO ONE WAS HURT, BUT THERE WAS DAMAGE TO SOME
     BUILDINGS AND POWERLINES IN AN AREA ABOUT 2 MILES TO
     EAST-NORTHEAST OF LACOMB.

OCTOBER...AND JUST LIKE THAT, SUMMER WAS OVER. AFTER SEEING
     TEMPERATURES IN THE LOWER TO MID 70S IN FIRST WEEK, IT
     WAS 50S AND 60S AFTERWARDS. RATHER ROBUST FRONT ARRIVED
     ON 21ST INTO 22ND, WITH 1 TO 3 INCHES OF RAIN. AS USUAL
     CASE IN OCTOBER, FALLEN LEAVE/CLOGGED DRAINS PRODUCED
     AREAS OF URBAN FLOODING AND PONDING OF WATER. OVERALL,
     MILD DAYS AND COOL NIGHTS ALLOWED FOR CURING OF TREES,
     PROVIDING SOME SPECTACULAR DISPLAYS OF AUTUMN COLOR.
     SALEM AREA SAW ITS FIRST DRY HALLOWEEN SINCE 2007.

NOVEMBER...TEMPERATURES/PRECIPITATION WERE NORMAL. STRONG
     WINDS GUSTING 40 TO 45 MPH ACCOMPANIED A COLD FRONT
     ON THE 13TH. THESE WINDS PRODUCED SOME TREE DAMAGE AND
     SPOTTY POWER OUTAGES. OVERALL, RAIN FELL ON NEARLY
     EVERY DAY IN NOVEMBER, THOUGH WAS NOT ALL THAT HEAVY.
     WARM AIR MASS OVER THE REGION FROM 20TH TO 22ND BROUGHT
     HIGHS IN THE 60S, WITH WARMEST BEING 64 DEG ON 21ST.

DECEMBER...STRONG HIGH PRESSURE OVER THE WESTERN USA KEPT
     THE AREA MOSTLY DRY FROM 4TH THROUGH THE 18TH. BUT,
     THIS ALSO FORMED A LOT OF NIGHTTIME AND MORNING FOG.
     THE HIGH PRESSURE MINIMIZED THE MIXING OF THE AIR MASS,
     LEADING TO MULTIPLE DAYS WITH MODERATE AIR QUALITY.

     A STRONG FRONT BROUGHT AN INCH OF RAIN ON THE 19TH AND
     20TH. BETWEEN THE 23RD AND 25TH, ARCTIC AIR SPILLED
     INTO WESTERN OREGON, WITH SLEET AND LIGHT FREEZING RAIN
     ON THE 24TH. THEN MILDER AIR RETURNED ON 28TH, WITH RAIN
     FOR A FEW DAYS. EVEN WITH THE RETURN OF RAIN, DECEMBER
     2017 FINISHED AS THE 12TH DRIEST DECEMBER ON RECORD.

==============================================================
NEW RECORDS SET IN 2017      (PREVIOUS RECORD IN PARENTHESES)
              + INDICATES MOST RECENT OF MULTIPLE OCCURRENCES

JANUARY...
   6TH   TIED.  DAILY LOW TEMP                14  (   14 /1937)

FEBRUARY...
   4TH   NEW.  DAILY MAX PRECIPITATION     1.53" ( 1.42"/1937)
   5TH   NEW.  DAILY MAX PRECIPITATION     2.44" ( 2.17"/1996)
         RAINFALL FROM 5 FEB WAS THE 5TH WETTEST DAY IN FEBRUARY
         SINCE RECORDS BEGAN IN 1892.
   FEB   NEW.  WETTEST FEB ON RECORD      13.41" (13.01"/1996)

MARCH... NO NEW RECORDS SET.

APRIL... NO NEW RECORDS SET.

MAY...   NO NEW RECORDS SET.

JUNE...  NO NEW RECORDS SET.

JULY...  NO NEW RECORDS SET.

AUGUST...
   1ST   NEW.  DAILY HIGH TEMP              101  (  100 /2015)
   2ND   NEW.  DAILY HIGH TEMP              107  (  102 /1939)
   3RD   NEW.  DAILY HIGH TEMP              103  (  102 /1952)
   AUG   NEW.  WARMEST AUG EVER. AVG T OF   73.0 ( 72.5 /2014)

SEPTEMBER...
   3RD   NEW.  DAILY HIGH TEMP               98  (   96 /1949+)
   SEP   NEW.  2ND WARMEST SEP ON RECORD.

OCTOBER...
  27TH   TIED. DAILY HIGH TEMP               74  (   74 /2003)

NOVEMBER...
  21ST   NEW.  DAILY HIGH TEMP               63  (   61 /1933)

DECEMBER... NO NEW RECORDS SET.

===============================================================
2017 SALEM MONTHLY TEMPERATURE AND PRECIPITATION RANKINGS

THIS SHOWS WHERE A MONTH/YEAR RANKS IN SALEMS WEATHER RECORD,
1892 TO 2017.  RANKINGS ONLY APPLY TO ALL OF THE SAME MONTH,
OR IN OTHER WORDS, WHERE JAN 2017 COMPARES TO ALL OTHER JAN.

RANKINGS ARE 1 TO 126...WHERE 1 IS THE WARMEST OR WETTEST
               AND 126 IS THE DRIEST OR COLDEST ON RECORD.

       JAN FEB MAR APR MAR JUN JUL AUG SEP OCT NOV DEC  2017
AVG T  110  56  28  61  27  16  12   1   2  54  19  83    15
PRECIP  69   1  11  10  71  93 126  73  29  18  53 117    11

MAX T  106  83  63  97  30  34  16   2  22  44  36  64    17
MIN T  117  38   7  30  31   8  34   4   2  64  18 103    23

===============================================================
2017 SALEM 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     43.1  29.5   36.3   -4.9 DEG     56 /18TH    14 / 6TH
FEB     49.7  36.3   43.0   -0.1 DEG     60 / 9TH    29 /25TH
MAR     55.1  40.9   48.0   +1.1 DEG     64 /21ST    32 /19TH
APR     59.5  41.4   50.5   +0.1 DEG     69 /21ST    31 / 3RD
MAY     70.5  46.2   58.3   +2.1 DEG     91 /23RD    37 /15TH+
JUN     76.0  52.8   64.4   +2.8 DEG    101 /24TH    44 / 5TH
JUL     86.0  54.2   70.1   +2.5 DEG     95 /31ST    50 /21ST+
AUG     89.0  57.1   73.0   +5.4 DEG    107 / 2ND    49 /25TH+
SEP     79.2  53.4   66.3   +3.7 DEG     98 / 3RD+   42 /21ST
OCT     65.1  42.8   54.0   +0.8 DEG     75 / 6TH    32 /31ST
NOV     54.2  41.3   47.8   +2.3 DEG     64 /22ND    30 / 7TH
DEC     47.1  32.0   39.6   -0.5 DEG     58 / 6TH    22 /11TH+

2017    64.6  44.0   54.3   +1.3 DEG    107 /AUG 2   14 /JAN 6
NORMAL  63.6  42.5   53.0

DAYS WITH TEMPERATURES IN 2017 WHERE...
       |------ MAXIMUM TEMP --------||------ MINIMUM TEMP ---|
       <=32  60+  70+  80+  90+ 100+  <=20  <=32   60+   70+
--------------------------------------------------------------
JAN      2    0    0    0    0    0      5    18    0     0
FEB      0    1    0    0    0    0      0     7    0     0
MAR      0    4    0    0    0    0      0     1    0     0
APR      0   14    0    0    0    0      0     1    0     0
MAY      0   25   17    8    1    0      0     0    0     0
JUN      0   30   20   10    3    1      0     0    0     0
JUL      0   31   31   27    9    0      0     0    0     0
AUG      0   31   31   27   14    3      0     0   10     0
SEP      0   29   23   14    6    0      0     0    7     0
OCT      0   24    8    0    0    0      0     1    0     0
NOV      0    4    0    0    0    0      0     1    0     0
DEC      0    0    0    0    0    0      0    18    0     0

2017     2  193  130   86   33    4      5    47   17     0
NORMAL   1  197  124   59   15    1      3    50    4     0

FIRST/LAST OCCURRENCES OF...        IN 2017      NORMAL
  LAST 32 DEG OR COLDER IN SPRING    APR  3     (APR 19)
  FIRST 70+ DEG OF THE YEAR          MAY  3     (MAR 31)
  FIRST 80+ DEG OF THE YEAR          MAY  3     (MAY  9)
  FIRST 90+ DEG OF THE YEAR          MAY 22     (JUN  3)

  LAST 90+ DEG OF THE YEAR           SEP 12     (SEP  8)
  LAST 80+ DEG OF THE YEAR           SEP 28     (SEP 30)
  LAST 70+ DEG OF THE YEAR           OCT 28     (OCT 20)
  FIRST 32 DEG OR COLDER IN FALL     OCT 31     (OCT 24)

==============================================================
2017 SALEM 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     5.40    -0.56      14   10    5    0    1.45 JAN 17-18
FEB    13.41    +8.85      21   17   10    4    2.53 FEB  4-5
MAR     7.69    +3.70      25   20    5    0    1.35 MAR 14-15
APR     4.42    +1.61      22   17    1    0    0.73 APR 25-26
MAY     1.64    -0.58       9    7    1    0    0.54 MAY 11
JUN     0.74    -0.81       7    3    0    0    0.35 JUN  7-8
JUL     0.00    -0.46       0    0    0    0    0.00 -
AUG     0.15    -0.30       1    1    0    0    0.15 AUG 13
SEP     2.36    +1.08       8    4    2    0    1.06 SEP 18-19
OCT     5.45    +2.42      15    8    5    2    2.37 OCT 21-22
NOV     6.57    +0.07      24   17    2    1    1.10 NOV 15
DEC     3.08    -3.76      14    7    3    0    0.74 DEC 19

  2017  50.91  +11.24     160  111   34    7    2.53 FEB 4-5
NORMAL  39.67             144   91   25    6

SALEM WATER YEAR 2016-17     (1 OCT 2016 THROUGH 30 SEP 2017)
      59.91 INCHES   WHICH IS 19.44 INCHES ABOVE NORMAL

============================================================
2017 SALEM WIND AND PRESSURE DATA...

      AVERAGE SPEED (MPH)    STRONGEST WIND GUST
MONTH   2017   NORMAL      DIRECTION   SPEED   DATE
----------------------------------------------------------
JAN      6.2    7.1         SOUTH       48 MPH  JAN 18
FEB      7.1    6.9         SOUTH       38 MPH  FEB  9
MAR      8.9    7.4         SOUTH       41 MPH  MAR  7
APR      7.6    6.9         SOUTH       60 MPH  APR  7
MAY      5.9    6.4        WEST        35 MPH  MAY 16
JUN      6.6    6.5         SOUTH       37 MPH  JUN 15
JUL      6.7    6.5         NORTH       27 MPH  JUL 23
AUG      5.4    6.0         NORTH       23 MPH  AUG 19
SEP      5.2    5.5         SOUTH       27 MPH  SEP 18
OCT      5.8    5.7         SOUTH       41 MPH  OCT 21
NOV      7.7    7.1         SOUTHWEST   47 MPH  NOV 26
DEC      6.0    7.1         SOUTH       39 MPH  DEC 19

2017     6.6    6.6        SOUTH       60 MPH  APR  7

HIGHEST PRESSURE IN 2017...30.68 INCHES    JAN 27
LOWEST PRESSURE IN 2017...29.07 INCHES    JAN 20

=============================================================
SALEM CLIMATE PERIOD OF RECORDS...   1892 TO 2017
SALEM 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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