Text Products for CLS Issued by CON

Climatological Report (Seasonal)
Issued by NWS Portland, ME
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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
933 PM EST MON MAR 01 2021

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

...THE CONCORD NH CLIMATE SUMMARY FOR THE WINTER SEASON,
FROM 12/1/2020 TO 2/28/2021...

CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1868 TO 2021

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             74   02/21/2018
 LOW             -37   02/16/1943
HIGHEST           64   12/01         60       4       67  01/12
LOWEST            -8   12/19        -15       7       -5  02/15
AVG. MAXIMUM    35.0               34.0     1.0     36.7
AVG. MINIMUM    18.1               13.8     4.3     18.5
MEAN            26.6               23.9     2.7     27.6
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32    32               39.8    -7.8       28
DAYS MIN <= 32    85               85.8    -0.8       87
DAYS MIN <= 0      3               14.2   -11.2        6

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       16.68   2008
 MINIMUM        3.14   1980
TOTALS          9.82               8.52    1.30    10.34
DAILY AVG.      0.11               0.09    0.02     0.11
DAYS >= .01       29               31.3    -2.3       MM
DAYS >= .10       13               18.0    -5.0       MM
DAYS >= .50        6                6.0     0.0        6
DAYS >= 1.00       4                1.8     2.2       MM
GREATEST
 24 HR. TOTAL   1.89   12/17

SNOWFALL (INCHES)
RECORDS
 TOTAL         102.0   2008
TOTALS          58.2               44.9    13.3     38.2
SINCE 7/1       59.0               47.5    11.5       MM
SNOWDEPTH AVG.     5
DAYS >= TRACE     36               21.6    14.4       MM
DAYS >= 1.0       12               11.5     0.5       MM
GREATEST
 SNOW DEPTH       21   12/18
 24 HR TOTAL    25.6R

DEGREE DAYS
HEATING TOTAL   3426               3700    -274     3383
 SINCE 7/1      4792               5259    -467       MM
COOLING TOTAL      0                  0       0        0
 SINCE 1/1         0                  0       0        0
................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.7
HIGHEST WIND SPEED/DIRECTION    33/290    DATE  01/24
HIGHEST GUST SPEED/DIRECTION    46/080    DATE  01/16

SKY COVER
AVERAGE SKY COVER           0.53

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     HEAVY RAIN                 3
RAIN                      5     LIGHT RAIN                12
FREEZING RAIN             2     LT FREEZING RAIN           2
HEAVY SNOW                2     SNOW                       8
LIGHT SNOW               34     FOG                       41
FOG W/VIS <= 1/4 MILE     8     HAZE                       8

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

&&

WINTER BEGAN WITH 64 DEGREES ON DECEMBER 1, ALTHOUGH COOLER AIR WAS
MOVING IN THROUGH THE DAY ON THE BACK SIDE OF AN EXITING STORM
SYSTEM. MILD WEATHER CONTINUED FOR A FEW DAYS BEFORE THE NEXT STORM
ARRIVED ON DECEMBER 5. THIS ONE BROUGHT A STICKY WET SNOWFALL WHICH
TOTALED 4.5 INCHES BUT MELTED DOWN TO NEARLY 1.5 INCHES OF LIQUID.
EVEN COOLER WEATHER MOVED IN BEHIND THIS STORM. BY MID DECEMBER
CONCORD SAW A WEEK OF BELOW NORMAL TEMPERATURES. RIGHT IN THE MIDDLE
OF THIS STRETCH A STRONG STORM SYSTEM BROUGHT HEAVY SNOW ON DECEMBER
17 WHEN 25.6 INCHES WAS MEASURED IN A LITTLE MORE THAN 12 HOURS.
THIS WAS THE GREATEST SINGLE DAY SNOWFALL ON RECORD AT CONCORD. THE
COLD WEATHER CONTINUED A FEW MORE DAYS, BOTTOMING OUT AT 8 BELOW
ZERO ON DECEMBER 19. BUT BY CHRISTMAS WARMER WEATHER HAD RETURNED. A
STORM SYSTEM ON CHRISTMAS DAY BROUGHT 59 DEGREE WARMTH AND MORE THAN
1.5 INCHES OF RAIN, WASHING MUCH OF THE EARLIER SNOWFALL AWAY. MILD
CONDITIONS CONTINUED FOR THE NEXT SEVERAL WEEKS. SNOW FELL ON 6 OF
THE FIRST 7 DAYS OF JANUARY, BUT IT NEVER AMOUNTED TO VERY MUCH.
DAYTIME HIGHS FREQUENTLY REACHED THE 30S TO NEAR 40 DEGREES, BUT THE
CLOUDY WEATHER KEPT NIGHTTIME LOWS MUCH WARMER THAN NORMAL. THIS
PERIOD OF MILD WEATHER PEAKED ON JANUARY 16 WHEN THE TEMPERATURE
REACHED 47 DEGREES AND MORE THAN 1 INCH OF RAIN FELL. SOME COOLER
WEATHER RETURNED BEHIND THIS STORM. THE NEXT BIG STORM WAS ON
FEBRUARY 1 AN 2 WHEN 6.9 INCHES OF SNOW AND SLEET FELL. A VERY COLD
ARCTIC AIR MASS SPILLED INTO THE CENTRAL UNITED STATES IN EARLY
FEBRUARY, AND NEW ENGLAND FOUND ITSELF ON THE EASTERN EDGE OF THIS
AIR MASS. THIS BROUGHT CONSISTENTLY COLD WEATHER AND A FEW WINTER
STORMS, BUT SPARED THE REGION THE MORE BRUTAL COLD OBSERVED TO THE
WEST. THE TEMPERATURE STAYED BELOW FREEZING FOR THE BETTER PART OF
TWO WEEKS IN MID FEBRUARY. THE COLDEST TEMPERATURE WAS 3 BELOW ZERO
ON FEBRUARY 10. SNOW, SLEET, AND FREEZING RAIN FELL ON FEBRUARY 16
WITH MORE SNOW FALLING ON FEBRUARY 19. FINALLY MORE MILD WEATHER
RETURNED FOR THE LAST WEEK OF FEBRUARY.

THE AVERAGE TEMPERATURE FOR THE WINTER WAS 26.6 DEGREES WHICH WAS
2.7 DEGREES ABOVE NORMAL. THE WARMEST WINTER WAS IN 2015-16 WHEN THE
AVERAGE TEMPERATURE WAS 30.9 DEGREES. THE COLDEST WAS IN 1917-18
WHEN IT WAS 15.5 DEGREES.

A TOTAL OF 9.82 INCHES OF PRECIPITATION FELL WHICH WAS 1.30 INCHES
ABOVE NORMAL. THE HEAVIEST PRECIPITATION FELL IN DECEMBER WHEN
SEVERAL STORM SYSTEMS BROUGHT HEAVY PRECIPITATION. THE HEAVIEST WAS
ON DECEMBER 17 WHEN A HEAVY SNOWSTORM BROUGHT 1.89 INCHES OF LIQUID
EQUIVALENT PRECIPITATION. THE WETTEST WINTER WAS IN 2007-08 WHEN
16.68 INCHES WAS RECORDED. THE DRIEST WAS IN 1979-80 WHEN ONLY 3.14
INCHES FELL.

THERE WAS 58.2 INCHES OF SNOWFALL WHICH WAS 13.3 INCHES ABOVE
NORMAL. THE HEAVIEST SNOW WAS ON DECEMBER 17 WHEN 25.6 INCHES WAS
MEASURED, THE HEAVIEST SINGLE DAY SNOWFALL ON RECORD. THE SNOWIEST
WINTER WAS IN 1950-51 WHEN 102.0 INCHES FELL. THE LEAST SNOWY WAS IN
1929-30 WITH ONLY 13.8 INCHES. THE FOLLOWING TABLE LISTS THE
HEAVIEST SNOWSTORMS ON RECORD AT CONCORD.

BIGGEST SNOWFALLS AT CONCORD (SINCE 1868)...
 DAILY SNOWFALL                  SNOWSTORMS
RANK  SNOW  DATE                SNOW  DATES
1     25.6  DEC 17, 2020  <===  27.5  MAR 11-13, 1888
2     24.0  MAR 12, 1888        25.6  DEC 17, 2020  <===
3     18.7  JAN 6, 1944         24.0  FEB 8-9, 2013
4     18.3  JAN 12, 2011        22.5  DEC 6-7, 2003
5     17.1  JAN 26, 1888        22.2  OCT 29-30, 2011
6     17.0  FEB 13, 1893        21.2  FEB 24-27, 1969
7     16.8  JAN 5, 1924         20.0  JAN 25-26, 1888
8     16.2  FEB 9, 2013         19.2  JAN 5-7, 1944
9     16.0  JAN 28, 1897        19.0  FEB 26-28, 1884
10    16.0  DEC 18, 1876        18.3  JAN 12, 2011

THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN WINTER 2020/21...
DATE    RECORD                               PREVIOUS
DEC 17  25.6 - GREATEST SNOWFALL             8.6 IN 1970
DEC 25  1.61 - GREATEST PRECIPITATION        1.05 IN 2002
JAN 16  1.13 - GREATEST PRECIPITATION        0.97 IN 1885

$$

KIMBLE
National Weather Service Weather Forecast Office
