Climatological Report (Monthly)
Issued by NWS Portland, ME

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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
411 PM EST WED JAN 2 2019

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

...THE GRAY ME CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1995 TO 2019

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              69   12/07/1998
 LOW              -10   12/29/2017
                        12/28/2017
                        03/03/2000
HIGHEST            53   12/21        55      -2       53
LOWEST              6   12/13         3       3      -10
AVG. MAXIMUM     34.8              34.8     0.0     28.4
AVG. MINIMUM     19.4              19.8    -0.4     13.8
MEAN             27.1              27.3    -0.2     21.1
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     14              12.5     1.5       17
DAYS MIN <= 32     31              27.9     3.1       30
DAYS MIN <= 0       0               0.6    -0.6        5

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.85   1996
 MINIMUM         1.87   1998
TOTALS           3.65              4.06   -0.41     3.47
DAILY AVG.       0.12              0.13   -0.01     0.11
DAYS >= .01         6              11.8    -5.8       13
DAYS >= .10         5               7.7    -2.7        8
DAYS >= .50         3               2.9     0.1        3
DAYS >= 1.00        1               1.5    -0.5        0
GREATEST
 24 HR. TOTAL    1.66   12/21 TO 12/22

SNOWFALL (INCHES)
RECORDS
 TOTAL           39.0   1995
TOTALS            4.3              18.3   -14.0     23.6
SINCE 7/1        25.1              21.4     3.7     24.8
SNOWDEPTH AVG.      1
DAYS >= TRACE       7               7.5    -0.5       12
DAYS >= 1.0         2               4.5    -2.5        6
GREATEST
 SNOW DEPTH         4   12/02                         13
                        12/01
 24 HR TOTAL      1.9   12/28

DEGREE_DAYS
HEATING TOTAL    1165              1169      -4     1354
 SINCE 7/1       2851              2666     185     2547
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        521               389     132      531
..............................................................



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

&&

DECEMBER BEGAN ON A MILD NOTE, WITH A FEW DAYS IN THE 40S HELPING TO
MELT MOST OF THE EARLY SEASON SNOW COVER. COLD WEATHER RETURNED,
THOUGH, WITH THE COLD PERIOD LASTING FOR ABOUT A WEEK AND A HALF.
THIS COLD SPELL WAS NOT AS INTENSE AS THE ONE A FEW WEEKS EARLIER
FOR THANKSGIVING, BUT IT DID BRING 6 STRAIGHT SUBFREEZING DAYS FROM
THE 8TH THRU THE 14TH. A SHIFT TO WARMER WEATHER BEGAN IN MID
DECEMBER. A RAINSTORM ON THE 21ST AND 22ND BROUGHT THE TEMPERATURE
INTO THE LOW 50S AND WASHED AWAY MOST OF THE SNOW COVER WITH ONLY A
TRACE HANGING ON FOR A FEW MORE DAYS. MORE RAIN AND SNOW CAME ON THE
28TH WITH 1.9 INCHES OF SNOW MEASURED, THE MOST OF THE MONTH.

THE AVERAGE TEMPERATURE FOR THE MONTH WAS 27.1 DEGREES WHICH WAS 0.2
DEGREES BELOW NORMAL. THE COLDEST DECEMBER WAS LAST YEAR WHEN IT WAS
ONLY 21.1 DEGREES IN 2017. THE WARMEST WAS IN 2015 WHEN IT WAS 35.8
DEGREES.

A TOTAL OF 3.65 INCHES OF PRECIPITATION FELL WHICH WAS 0.41 INCHES
BELOW NORMAL. THE HEAVIEST FELL ON THE 21ST AND 22ND WHEN 1.66
INCHES WAS MEASURED. THE DRIEST DECEMBER WAS IN 1998 WHEN ONLY 1.87
INCHES WAS RECORDED. THE WETTEST WAS IN 1996 WITH 7.85 INCHES.

A TOTAL OF 4.3 INCHES OF SNOW FELL WHICH WAS 14.0 INCHES BELOW
NORMAL AND THE LEAST SNOWY DECEMBER SINCE 2011. NEARLY HALF OF THIS
SNOW FELL ON THE 28TH WHEN 1.9 INCHES WAS MEASURED. THE SNOWIEST
DECEMBER WAS IN 1995 WHEN 39.0 INCHES FELL. THE LEAST SNOWY WAS IN
1999 WHEN ONLY A TRACE OF SNOW WAS REPORTED.

$$

KIMBLE


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