Climatological Report (Annual)
Issued by NWS Portland, ME

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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
348 PM EST WED JAN 4 2017

...................................

...THE PORTLAND ME CLIMATE SUMMARY FOR THE YEAR OF 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1940 TO 2016 /FOR TEMPERATURES/
CLIMATE RECORD PERIOD 1871 TO 2016 /FOR PRECIPITATION/
CLIMATE RECORD PERIOD 1882 TO 2016 /FOR SNOWFALL/


WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             103   08/02/1975
 LOW              -39   02/16/1943
HIGHEST            99   08/12        93       6       92  09/07
LOWEST            -10   02/15       -10       0      -11  02/24
                        02/14
AVG. MAXIMUM     58.1              55.8     2.3     56.9
AVG. MINIMUM     38.8              37.2     1.6     37.2
MEAN             48.4              46.5     1.9     47.1
DAYS MAX >= 90      8               4.6     3.4        3
DAYS MAX <= 32     31              42.1   -11.1       49
DAYS MIN <= 32    140             145.8    -5.8      143
DAYS MIN <= 0       5               7.7    -2.7       19

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        66.45   2005
 MINIMUM        25.27   1941
TOTALS          42.12             47.25   -5.13    43.82
DAILY AVG.       0.12              0.13   -0.01     0.12
DAYS >= .01       128             130.9    -2.9      127
DAYS >= .10        72              79.4    -7.4       74
DAYS >= .50        26              30.1    -4.1       25
DAYS >= 1.00        8              11.5    -3.5       10
GREATEST
 24 HR. TOTAL    3.99   10/21 TO 10/22

SNOWFALL (INCHES)
RECORDS
 TOTAL          150.1   1956
TOTALS           63.9              61.9     2.0     87.9
SINCE 7/1        19.4              15.1     4.3      7.3
SNOWDEPTH AVG.      1
DAYS >= TRACE      47              27.6    19.4       51
DAYS >= 1.0        16              15.9     0.1       22
GREATEST
 SNOW DEPTH         8   01/19
 24 HR TOTAL      8.8   02/05

DEGREE_DAYS
HEATING TOTAL    6495              7106    -611     6881
 SINCE 7/1       2387              2612    -225     2077
COOLING TOTAL     553               360     193      492

FREEZE DATES
RECORD
 EARLIEST     05/31/1961
 LATEST       09/14/1963
EARLIEST                        09/25
LATEST                          05/02
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.6
HIGHEST WIND SPEED/DIRECTION    46/340    DATE  07/23
HIGHEST GUST SPEED/DIRECTION    52/340    DATE  07/23

SKY COVER
AVERAGE SKY COVER           0.50

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             16     HEAVY RAIN                19
RAIN                     39     LIGHT RAIN               127
FREEZING RAIN             3     LT FREEZING RAIN           8
HEAVY SNOW                5     SNOW                      14
LIGHT SNOW               42     FOG                      154
FOG W/VIS <= 1/4 MILE    36     HAZE                      26

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$

THE YEAR 2016 WAS THE FOURTH WARMEST ON RECORD AT PORTLAND AND THE
DRIEST YEAR SINCE 2004. ALTHOUGH THERE WERE A FEW PERIODS OF EXTREME
COLD IN MID FEBRUARY, APRIL, AND MID DECEMBER, MOST OF THE YEAR WAS
DOMINATED BY WARM WEATHER AND DEVELOPING DROUGHT.

IT ALL STARTED OUT WITH A STRETCH OF WARMER THAN NORMAL WEATHER AT
THE BEGINNING OF JANUARY. THIS JANUARY THAW CULMINATED IN A HIGH
TEMPERATURE OF 52 ON JANUARY 10 ALONG WITH 2 INCHES OF RAIN WHICH
WASHED AWAY ALL THE EARLY SEASON SNOW PACK. A SNOWSTORM ON JANUARY
12 BROUGHT A FRESH 6 INCHES OF SNOW FOLLOWED BY 11 STRAIGHT DAYS
WHERE THE TEMPERATURE DID NOT RISE ABOVE FREEZING AND A FEW MORE
LIGHT SNOWFALLS. WARMER WEATHER RETURNED AGAIN FOR THE END OF
JANUARY AND THE BEGINNING OF FEBRUARY WITH THE WARMTH PEAKING WITH 4
DAYS ABOVE 50 DEGREES, MELTING THE SNOW PACK AGAIN. THE BIGGEST
SNOWSTORM OF THE YEAR CAME ON FEBRUARY 5 WHEN 8.8 INCHES WAS
MEASURED WITH PROGRESSIVELY COLDER WEATHER ARRIVING IN BEHIND IT. A
BITTERLY COLD ARCTIC AIR MASS ARRIVED FOR VALENTINES DAY WITH 4
STRAIGHT DAYS OF SUBZERO TEMPERATURES INCLUDING THE COLDEST
TEMPERATURE OF THE YEAR AT 10 BELOW ZERO. THIS COLD WEATHER DID NOT
LAST LONG AS THE TEMPERATURE SOARED TO 50 DEGREES AGAIN THE NEXT DAY
AND WARM WEATHER PERSISTED THROUGH THE MIDDLE OF MARCH. FOR THE
FIRST TIME SINCE 2002 ALL OF THE WINTER SNOWPACK HAD MELTED BEFORE
THE FIRST DAY OF MARCH. ALTHOUGH THIS WARM LATE WINTER WEATHER MIGHT
HAVE SET THE STAGE FOR AN EARLY SPRING, THIS WAS NOT TO BE. THE
SPRING EQUINOX ARRIVED ON MARCH 21 WITH ANOTHER 6 INCHES OF SNOWFALL
AND A SHIFT TOWARD COLDER TEMPERATURES. EVEN COLDER TEMPERATURES
ARRIVED DURING THE FIRST PART OF APRIL. ON APRIL 4 THE HIGH
TEMPERATURE ONLY MADE IT UP TO 25 DEGREES, THE THIRD COLDEST APRIL
DAY ON RECORD. ALTHOUGH TEMPERATURES MODERATED A BIT TOWARD THE
MIDDLE OF APRIL, COLD AIR ARRIVED AGAIN AT THE END OF THE MONTH
COMPLETE WITH A RARE LATE SEASON SNOWSTORM ON APRIL 26, THE LATEST
MEASURABLE SNOWFALL IN MORE THAN 20 YEARS. THE LAST FREEZE OF THE
SEASON WAS ON APRIL 30, JUST A FEW DAYS EARLIER THAN NORMAL. THE
FOLLOWING TABLE LISTS ALL OF THE RECORDED SNOWSTORMS ON APRIL 26 OR
LATER.

ALL SNOWSTORMS APRIL 26 OR LATER (SINCE 1882)...
RANK  SNOW  DATE
1      7.0  MAY 10-11, 1945 (LATEST SNOWFALL)
2      3.3  APR 28-29, 1987
3      2.2  APR 26, 2016 <===
4      2.0  MAY 8-10, 1966
5      1.9  APR 26, 1887
6      1.5  APR 28, 1958
       1.5  APR 26-27, 1885
8      0.5  APR 26, 1890
9      0.4  APR 27, 1993 (MOST RECENT)
10     0.1  MAY 7, 1967
       0.1  APR 27, 1933

AS THE CALENDAR TURNED TO MAY, THE COOL WEATHER CONTINUED ALONG WITH
SEVERAL DAYS OF LIGHT RAIN. THE COLD WEATHER PATTERN FINALLY BROKE
IN MID MAY WITH WARMER WEATHER BUILDING IN. THE TEMPERATURE HIT 80
DEGREES FOR THE FIRST TIME ON MAY 28, ABOUT TWO WEEKS LATER THAN
NORMAL. PORTLAND OBSERVED 9 STRAIGHT DAYS WITH RAINFALL IN THE
BEGINNING OF JUNE, THOUGH THE ONLY HEAVY RAIN WAS ON JUNE 5 WHEN
MORE THAN 2 INCHES FELL. ASIDE FROM THIS A DRIER WEATHER PATTERN WAS
BEGINNING TO EMERGE WITH DRY CONTINENTAL AIR SPILLING INTO THE
REGION. THIS OFTEN MEANT WARM DAYS AND COOL NIGHTS WITH DROUGHT
DEVELOPING THROUGH THE SUMMER. AFTER A WARM STRETCH OF WEATHER
CENTERED AROUND INDEPENDENCE DAY, A PERIOD OF ONSHORE WINDS IN MID
JULY BROUGHT COOL, DAMP WEATHER FOR A FEW DAYS. ON JULY 9 THE
TEMPERATURE ONLY TOPPED OUT AT 59 DEGREES, THE 4TH COOLEST JULY DAY
ON RECORD. THIS COOL WEATHER WAS JUST TEMPORARY AS THE WARMEST
STRETCH OF THE SUMMER WAS ABOUT TO BEGIN.  FROM JULY 15 THRU AUGUST
15 THERE WERE 24 DAYS ABOVE 80 DEGREES AND 7 ABOVE 90. THIS WARMTH
CULMINATED IN THE HOTTEST DAY OF THE YEAR ON AUGUST 12 WHEN THE
TEMPERATURE SOARED TO 99 DEGREES, THE HOTTEST TEMPERATURE IN 5 YEARS
AND THE 4TH HOTTEST AUGUST TEMPERATURE ON RECORD. ALTHOUGH THE
EXTREME HEAT DID NOT RETURN, WARM AND DRY WEATHER CONTINUED RIGHT
THROUGH THE FALL EQUINOX IN MID SEPTEMBER, ALLOWING THE DEVELOPING
DROUGHT TO INTENSIFY.

FINALLY BY THE END OF SEPTEMBER A MORE FALL-LIKE WEATHER PATTERN WAS
SEEN, WITH PERIODS OF WARMER WEATHER FOLLOWED BY COLD FRONTS AND
COOLER WEATHER. THE FIRST FREEZE OF THE SEASON WAS ON OCTOBER 15,
ABOUT A WEEK LATER THAN NORMAL. DROUGHT RELIEF CAME IN LATE OCTOBER
AS TROPICAL MOISTURE SURGED AHEAD OF A COLD FRONT AND BROUGHT MORE
THAN 4 INCHES OF RAINFALL ON THE NIGHT OF OCTOBER 21 INTO THE
MORNING OF THE 22ND, THE HEAVIEST RAINFALL OF THE YEAR. THIS WAS
FOLLOWED BY MORE HEAVY RAIN AND COOLER TEMPERATURES A WEEK LATER
WHEN A NOR`EASTER BROUGHT MORE THAN 2 INCHES OF RAIN ON OCTOBER 28.
WARM WEATHER BEGAN BUILDING AGAIN BY MID NOVEMBER WITH SEVERAL DAYS
TOPPING 60 DEGREES. THIS WARMER WEATHER PATTERN BROKE ON NOVEMBER 21
AND 22 WITH THE FIRST SNOWFALL OF THE SEASON AND A RETURN TO COOLER
TEMPERATURES.

ALTERNATING PERIODS OF WARMER AND COOLER WEATHER AND OCCASIONAL
RAINFALL WERE EVENTUALLY REPLACED BY MUCH COLDER WEATHER IN MID
DECEMBER. AFTER A FEW LIGHT SNOWFALLS, A BRUTALLY COLD EARLY SEASON
ARCTIC AIR MASS MOVED INTO THE AREA. DECEMBER 16 WAS THE COLDEST
DECEMBER DAY IN MORE THAN 30 YEARS AS THE TEMPERATURE ONLY MADE IT
UP TO 9 DEGREES THAT DAY AND FELL TO 3 BELOW ZERO FOR A LOW. AFTER A
FEW MORE DAYS OF FRIGID COLD AND MORE LIGHT SNOW, THE ARCTIC AIR
MOVED AWAY. ALTHOUGH WARMER WEATHER DOMINATED THROUGH THE REST OF
DECEMBER, IT WAS NOT ENOUGH TO PREVENT PORTLAND FROM SEEING ITS
FIRST WHITE CHRISTMAS IN 3 YEARS. AN INTENSIFYING LOW PRESSURE
SYSTEM MOVING THROUGH THE GULF OF MAINE BROUGHT RAIN AND SNOW ON THE
29TH AND 30TH. AS THE RAIN CHANGED TO SNOW IT WAS ACCOMPANIED BY
THUNDER AND LIGHTNING AND VERY HEAVY SNOWFALL RATES. MORE THAN 7
INCHES OF SNOW WAS RECORDED, WITH MOST OF THAT FALLING IN JUST A FEW
HOURS.

THE AVERAGE TEMPERATURE FOR THE YEAR WAS 48.4 DEGREES WHICH WAS 1.9
DEGREES ABOVE NORMAL AND THE 4TH WARMEST YEAR ON RECORD. THE WARMEST
YEAR WAS 49.2 DEGREES IN 2012 AND 2010. THE COLDEST WAS 43.3 DEGREES
IN 1962. THE FOLLOWING TABLE LISTS THE AVERAGE TEMPERATURES FOR EACH
MONTH OF 2015 INCLUDING DEPARTURES FROM NORMAL.

AVERAGE TEMPERATURES BY MONTH IN 2016
MONTH      MAXIMUM       MINIMUM      AVERAGE      NOTES
JANUARY    35.1 (+3.9)   18.8 (+5.4)  27.0 (+4.7)  8TH WARMEST
FEBRUARY   39.5 (+4.9)   18.0 (+1.6)  28.8 (+3.3)  9TH WARMEST
MARCH      46.2 (+4.1)   29.4 (+4.5)  37.8 (+4.3)  5TH WARMEST
APRIL      53.4 (+0.1)   32.0 (-2.7)  42.7 (-1.3)
MAY        63.8 (+0.3)   45.6 (+1.4)  54.7 (+0.8)
JUNE       73.7 (+0.5)   53.7 (+0.1)  63.7 (+0.3)
JULY       81.3 (+2.5)   61.2 (+1.8)  71.2 (+1.5)  9TH WARMEST
AUGUST     82.9 (+5.2)   60.7 (+2.5)  71.8 (+3.8)  WARMEST
SEPTEMBER  74.0 (+4.0)   53.6 (+3.3)  63.8 (+3.7)  3RD WARMEST
OCTOBER    59.9 (+1.2)   40.9 (+2.0)  50.4 (+1.6)
NOVEMBER   50.6 (+2.6)   32.3 (+1.4)  41.5 (+2.1)
DECEMBER   36.6 (-0.7)   19.6 (-0.8)  28.1 (-0.7)
ANNUAL     58.1 (+2.3)   38.8 (+1.6)  48.4 (+1.9)  4TH WARMEST

PORTLAND RANKED IN THE TOP FIVE IN NUMBER OF DAYS WITH A HIGH
TEMPERATURE OF 70 DEGREES OR WARMER AND 80 DEGREES OR WARMER. THE
FOLLOWING TABLE LISTS THE NUMBER OF DAYS WITH A HIGH TEMPERATURE
THAT REACHED 70 OR 80 DEGREES.

MAXIMUM TEMPERATURE 70 OR 80 DEGREES OR HIGHER (SINCE 1941)
      MAX >=70         |  MAX >= 80
RANK  DAYS  YEAR       |  DAYS  YEAR
1     126   1941       |   63   1991
2     120   1998       |   60   2010
3     119   2016 <===  |   58   2016 <===
4     119   2010       |   57   2015
5     119   1947       |   57   1947
6     118   1957       |   54   1959
7     115   2015       |   53   1999
8     115   1989       |   53   1983
9     114   2001       |   53   1980
10    113   2007*      |   53   1970*

* ALSO OCCURRED IN EARLIER YEARS

A TOTAL OF 42.12 INCHES OF PRECIPITATION FELL IN 2016 WHICH WAS 5.13
INCHES BELOW NORMAL AND THE DRIEST YEAR SINCE 2004. THE HEAVIEST
RAIN FELL ON OCTOBER 21 AND 22 WHEN 4.25 INCHES WAS MEASURED. THE
DRIEST YEAR ON RECORD WAS 1941 WHEN ONLY 25.27 INCHES FELL. THE
WETTEST WAS 2005 WITH 66.45 INCHES. THE FOLLOWING TABLE LISTS THE
PRECIPITATION AND SNOWFALL AMOUNTS FOR EACH MONTH OF 2016 INCLUDING
DEPARTURES FROM NORMAL.

MONTHLY PRECIPITATION AND SNOWFALL TOTALS FOR 2015
MONTH      PRECIPITATION   SNOWFALL      NOTES
JANUARY    3.37  (-0.01)   13.2 (-6.0)
FEBRUARY   4.17  (+0.92)   20.5 (+8.4)
MARCH      4.37  (+0.13)   7.1  (-5.6)
APRIL      1.56  (-2.76)   3.7  (+0.9)
MAY        2.04  (-1.97)   0.0
JUNE       4.42  (+0.63)   0.0
JULY       1.70  (-1.91)   0.0
AUGUST     1.90  (-1.24)   0.0
SEPTEMBER  0.86  (-2.83)   0.0
OCTOBER    8.36  (+3.49)   0.0           6TH WETTEST
NOVEMBER   4.06  (-0.87)   0.5  (-1.4)
DECEMBER   5.31  (+1.29)   18.9 (+5.7)

THERE WERE 8 DAYS THAT RECORDED AT LEAST 1.00 INCH OF PRECIPITATION.
THIS IS 3.5 DAYS BELOW NORMAL AND THE FEWEST SINCE 2003 (6 DAYS).
THE FOLLOWING TABLE LISTS THE DAYS WHICH RECEIVED AT LEAST 1.00 INCH
OF PRECIPITATION IN 2016.

DAYS WITH AT LEAST 1.00 INCH OF PRECIPITATION IN 2016
DAY           PRECIPITATION
JANUARY 10    2.04
JUNE 5        2.43
OCTOBER 21    3.81
OCTOBER 28    2.24
NOVEMBER 15   1.10
NOVEMBER 29   1.21
DECEMBER 1    1.12
DECEMBER 29   1.59

SNOWFALL STATISTICS ARE NORMALLY LISTED BY SEASON RATHER THAN BY
CALENDAR YEAR. HOWEVER, 2016 SAW 63.9 INCHES OF SNOW WHICH WAS 2.0
INCHES ABOVE NORMAL. THE HEAVIEST SNOWSTORM WAS FEBRUARY 5 WHEN 8.8
INCHES WAS MEASURED. THERE WERE 16 DAYS THAT MEASURED AT LEAST 1.0
INCH OF SNOWFALL, THE FEWEST SINCE 2012. THERE WERE ONLY 3 DAYS THAT
MEASURED AT LEAST 6 INCHES, THE FEWEST SINCE 2010. THE FOLLOWING
TABLE LISTS THE DAYS WHICH RECEIVED 6 INCHES OR MORE OF SNOWFALL IN
2016.

DAYS WITH AT LEAST 6 INCHES OF SNOWFALL IN 2016
DAY           SNOWFALL
JANUARY 12    6.1
FEBRUARY 5    8.8
MARCH 21      6.3

SNOW DEPTH REACHED ITS PEAK ON THE MORNING OF JANUARY 19 WHEN 8
INCHES WAS ON THE GROUND. SNOW DEPTH WAS INCONSISTENT IN JANUARY,
FEBRUARY, AND MARCH WITH PERIODS OF WARM WEATHER PREVENTING THE SNOW
PACK FROM BUILDING OR MAINTAINING ITSELF FOR LONG PERIODS. THE MOST
CONSECUTIVE DAYS WITH AT LEAST 1 INCH ON THE GROUND IN 2016 WAS ONLY
20 DAYS, ENDING ON FEBRUARY 1. THERE WERE A TOTAL OF 67 DAYS WITH AT
LEAST 1 INCH OF SNOW ON THE GROUND, ONLY 1 DAY LESS THAN NORMAL AND
THE FEWEST SINCE 2012. THERE WERE ONLY 9 DAYS WITH AT LEAST 6 INCHES
ON THE GROUND, 26 DAYS BELOW NORMAL AND THE FEWEST SINCE 2006.
NORMALLY THERE ARE 15 DAYS WITH AT LEAST 12 INCHES ON THE GROUND,
BUT THERE WERE NONE IN 2016 FOR THE FIRST TIME SINCE 2006.

THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN 2016...
JAN 10  52   - WARMEST HIGH TEMPERATURE      50 IN 2000
JAN 10  43   - WARMEST AVERAGE TEMPERATURE   40 IN 2002, 1956, AND 1946
FEB 2   48   - WARMEST HIGH TEMPERATURE      48 IN 1981, 1973, AND 1952 /TIED/
FEB 4   55   - WARMEST HIGH TEMPERATURE      50 IN 1991 AND 1960
FEB 4   38   - WARMEST LOW TEMPERATURE       37 IN 1984
FEB 4   47   - WARMEST AVERAGE TEMPERATURE   41 IN 2006
FEB 25  53   - WARMEST HIGH TEMPERATURE      51 IN 1985 AND 1984
FEB 25  44   - WARMEST AVERAGE TEMPERATURE   42 IN 1996 AND 1975
FEB 29  59   - WARMEST HIGH TEMPERATURE      45 IN 2004 AND 1972
FEB 29  42   - WARMEST AVERAGE TEMPERATURE   38 IN 2000
MAR 9   66   - WARMEST HIGH TEMPERATURE      55 IN 2012
MAR 9   40   - WARMEST LOW TEMPERATURE       39 IN 2000
MAR 9   53   - WARMEST AVERAGE TEMPERATURE   47 IN 2000
MAR 10  66   - WARMEST HIGH TEMPERATURE      58 IN 1998 AND 1977
MAR 10  41   - WARMEST LOW TEMPERATURE       37 IN 2006
MAR 10  54   - WARMEST AVERAGE TEMPERATURE   47 IN 1977
MAR 13  50   - WARMEST AVERAGE TEMPERATURE   50 IN 2012 AND 1946 /TIED/
MAR 15  38   - WARMEST LOW TEMPERATURE       37 IN 1990 AND 1945
MAR 16  39   - WARMEST LOW TEMPERATURE       38 IN 1948
APR 1   51   - WARMEST LOW TEMPERATURE       45 IN 1945
APR 1   58   - WARMEST AVERAGE TEMPERATURE   57 IN 1945
APR 4   25   - COLDEST HIGH TEMPERATURE      31 IN 1954
APR 26  2.2  - GREATEST SNOWFALL             1.9 IN 1887
MAY 2   3    - SMALLEST TEMPERATURE RANGE    4 IN 1962
JUN 5   3    - SMALLEST TEMPERATURE RANGE    3 IN 1945 /TIED/
JUN 5   2.43 - GREATEST PRECIPITATION        2.12 IN 2007
JUL 9   59   - COOLEST HIGH TEMPERATURE      64 IN 1946
JUL 9   58   - COOLEST AVERAGE TEMPERATURE   60 IN 1961 AND 1946
JUL 9   3    - SMALLEST TEMPERATURE RANGE    5 IN 1957
AUG 6   94   - WARMEST HIGH TEMPERATURE      90 IN 1965
AUG 6   81   - WARMEST AVERAGE TEMPERATURE   80 IN 1988
AUG 12  99   - WARMEST HIGH TEMPERATURE      99 IN 1944 /TIED/
SEP 19  65   - WARMEST LOW TEMPERATURE       64 IN 1952
SEP 20  64   - WARMEST LOW TEMPERATURE       62 IN 2003 AND 2000
DEC 16  9    - COLDEST HIGH TEMPERATURE      10 IN 1951

$$

KIMBLE



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