Climatological Report (Monthly)
Issued by NWS Portland, ME

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CLMCON

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

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

...THE CONCORD NH CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1868 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              73   12/07/1998
 LOW              -24   12/20/1875
HIGHEST            62   12/21        56       6       53  12/06
LOWEST              2   12/13        -2       4      -12  12/31
AVG. MAXIMUM     37.8              36.3     1.5     30.6
AVG. MINIMUM     19.0              17.2     1.8     13.7
MEAN             28.4              26.8     1.6     22.2
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      7              10.6    -3.6       16
DAYS MIN <= 32     29              28.4     0.6       31
DAYS MIN <= 0       0               2.4    -2.4        7

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.64   1936
 MINIMUM         0.58   1943
TOTALS           3.26              3.20    0.06     3.07
DAILY AVG.       0.11              0.10    0.01     0.10
DAYS >= .01         9              10.9    -1.9       12
DAYS >= .10         6               6.4    -0.4        7
DAYS >= .50         2               2.3    -0.3        2
DAYS >= 1.00        1               0.8     0.2        0
GREATEST
 24 HR. TOTAL    1.04   12/21

SNOWFALL (INCHES)
RECORDS
 TOTAL           44.5   2007
TOTALS            3.4              14.5   -11.1     20.1
SINCE 7/1        16.7              17.1    -0.4     20.7
SNOWDEPTH AVG.      1
DAYS >= TRACE       8               6.6     1.4        8
DAYS >= 1.0         1               3.8    -2.8        5
GREATEST
 SNOW DEPTH         3   12/02
 24 HR TOTAL      1.7   12/31

DEGREE_DAYS
HEATING TOTAL    1124              1186     -62     1321
 SINCE 7/1       2748              2746       2     2522
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        734               452     282      564
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.7
HIGHEST WIND SPEED/DIRECTION    30/310    DATE  12/18
HIGHEST GUST SPEED/DIRECTION    45/290    DATE  12/18

SKY COVER
AVERAGE SKY COVER           0.50

AVERAGE RH (PERCENT)     71

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

&&

DECEMBER BEGAN ON A WARM NOTE AS THE FIRST FEW DAYS SAW THE
TEMPERATURE WARM WELL INTO THE 40S FOR THE FIRST TIME IN A FEW
WEEKS. THE COLD RETURNED A FEW DAYS LATER, THOUGH IT WAS NOT QUITE
AS COLD AS THE LAST COLD PERIOD A FEW WEEKS EARLIER FOR
THANKSGIVING. WARMER WEATHER BEGAN TO BUILD IN AGAIN IN MID
DECEMBER. A RAINSTORM ON THE 21ST WAS ACCOMPANIED BY A TEMPERATURE
SOARING TO 62 DEGREES, ENOUGH TO MELT THE LAST OF THE EARLY SEASON
SNOW COVER, ENSURING THAT CONCORD WOULD SEE A BROWN CHRISTMAS AFTER
HAVING SEEN A WHITE THANKSGIVING. AS THE MONTH CAME TO A CLOSE SNOW
BEGAN TO FALL AGAIN, WITH 1.7 INCHES RECORDED BEFORE MIDNIGHT ON THE
31ST, THE MOST OF THE MONTH.

THE AVERAGE TEMPERATURE FOR THE MONTH WAS 28.4 DEGREES WHICH WAS 1.6
DEGREES ABOVE NORMAL AND MORE THAN 6 DEGREES WARMER THAN THE VERY
COLD DECEMBER EXPERIENCED IN 2017. THE WARMEST DECEMBER ON RECORD
WAS IN 2015 WHEN THE AVERAGE TEMPERATURE WAS 37.7 DEGREES. THE
COLDEST WAS IN 1989 WHEN IT WAS ONLY 11.9 DEGREES.

A TOTAL OF 3.26 INCHES OF PRECIPITATION FELL WHICH WAS 0.06 INCHES
ABOVE NORMAL. THE HEAVIEST PRECIPITATION FELL ON DECEMBER 21 WHEN
1.04 INCHES OF RAIN WAS RECORDED. THE WETTEST DECEMBER ON RECORD WAS
IN 1936 WHEN 7.64 INCHES FELL. THE DRIEST WAS IN 1943 WHEN ONLY 0.58
INCHES WAS RECORDED.

A TOTAL OF 3.4 INCHES OF SNOW FELL WHICH WAS 11.1 INCHES BELOW
NORMAL AND THE LEAST SNOWY DECEMBER SINCE 2011. HALF OF THE SNOW
CAME ON DECEMBER 31 WHEN 1.7 INCHES WAS MEASURED BEFORE MIDNIGHT.
THE SNOWIEST DECEMBER WAS IN 2007 WHEN 45.3 INCHES FELL. THE LEAST
SNOWY WAS IN 1999 AND 1928 WHEN ONLY A TRACE OF SNOW WAS RECORDED.

THE FOLLOWING RECORDS WERE SET OR TIED IN DECEMBER 2018...
DATE  RECORD                                PREVIOUS
21    62   - WARMEST HIGH TEMPERATURE       60 IN 1994

$$

KIMBLE



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