Climatological Report (Monthly)
Issued by NWS Portland, ME

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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
734 PM EST MON FEB 5 2018

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

...THE CONCORD NH CLIMATE SUMMARY FOR THE MONTH OF JANUARY 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              69   01/06/2007
 LOW              -35   01/08/1878
HIGHEST            57   01/13        51       6       56  01/12
                        01/12
LOWEST            -19   01/02       -11      -8       -5  01/09
AVG. MAXIMUM     32.0              30.8     1.2     37.4
AVG. MINIMUM     12.0              10.4     1.6     19.6
MEAN             22.0              20.6     1.4     28.5
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     18              16.9     1.1        7
DAYS MIN <= 32     30              30.0     0.0       28
DAYS MIN <= 0       8               6.9     1.1        3

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.09   1979
 MINIMUM         0.40   1970
TOTALS           3.18              2.70    0.48     2.52
DAILY AVG.       0.10              0.09    0.01     0.08
DAYS >= .01         7              10.8    -3.8       15
DAYS >= .10         6               6.1    -0.1        9
DAYS >= .50         3               2.0     1.0        1
DAYS >= 1.00        0               0.4    -0.4        0
GREATEST
 24 HR. TOTAL    0.82   01/23

SNOWFALL (INCHES)
RECORDS
 TOTAL           46.7   1935
TOTALS           17.9              18.1    -0.2      8.9
SINCE 7/1        38.6              35.2     3.4     32.8
SNOWDEPTH AVG.     10
DAYS >= TRACE       7               8.2    -1.2       15
DAYS >= 1.0         2               4.6    -2.6        3
GREATEST
 SNOW DEPTH        21   01/05
 24 HR TOTAL     13.0   01/04

DEGREE_DAYS
HEATING TOTAL    1324              1376     -52     1124
 SINCE 7/1       3846              4122    -276     3527
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.5
HIGHEST WIND SPEED/DIRECTION    33/320    DATE  01/04
HIGHEST GUST SPEED/DIRECTION    47/320    DATE  01/04

SKY COVER
AVERAGE SKY COVER           0.40

AVERAGE RH (PERCENT)     67


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

&&

AS JANUARY BEGAN, CONCORD FOUND ITSELF IN THE MIDST OF A FRIGID
ARCTIC AIR MASS THAT HAD BEEN IN PLACE SINCE CHRISTMAS DAY. THE
COLDEST TEMPERATURE OF THIS COLD WAVE WAS ON JANUARY 2 WHEN THE
TEMPERATURE HIT 19 BELOW ZERO, THE COLDEST TEMPERATURE IN CONCORD
SINCE THE INFAMOUS COLD OF FEBRUARY 2015. AT LEAST THE TEMPERATURE
DID WARM UP INTO THE 20S FOR A FEW DAYS, JUST LONG ENOUGH FOR AN
INTENSE NOR`EASTER TO BRING 13 INCHES OF SNOW AND 47 MPH WINDS,
CREATING BLIZZARD CONDITIONS ON JANUARY 4. MORE COLD AIR POURED IN
RIGHT BEHIND THIS STORM. WHEN THE BRUTAL COLD FINALLY BEGAN TO EASE
UP, CONCORD HAD SEEN SUBZERO TEMPERATURES FOR THE FIRST 7 DAYS OF
JANUARY. GOING BACK TO LATE DECEMBER THIS STRETCH INCLUDED 12
STRAIGHT DAYS OF SUBZERO TEMPERATURES, THE 4TH LONGEST STRETCH ON
RECORD. JUST WHEN THE INTENSE COLD SEEMED LIKE IT WOULD NEVER END,
THE JANUARY THAW ARRIVED. CONCORD SAW THREE STRAIGHT DAYS IN THE 50S
FROM JANUARY 11 THRU 13 ALONG WITH MORE THAN AN INCH OF RAIN. THIS
WARM, WET WEATHER PUT A DENT IN THE DEEP EARLY SEASON SNOW PACK
WHICH HAD DEVELOPED THROUGH THE COLD SPELL. A COLD FRONT ON JANUARY
13 BROUGHT AN END TO THE JANUARY THAW, WITH THE TEMPERATURE DROPPING
FROM 57 DEGREES THAT MORNING ALL THE WAY DOWN TO 12 DEGREES BY
MIDNIGHT. ALTHOUGH THE NEXT FEW DAYS SAW WELL BELOW NORMAL
TEMPERATURES, IT WAS NOTHING COMPARED TO THE EXTREME COLD WHICH HAD
OCCURRED JUST A FEW WEEKS EARLIER. IT ALSO DID NOT LAST NEARLY AS
LONG. AFTER SOME MORE SNOW ON JANUARY 17, WARMER TEMPERATURES BEGAN
TO MOVE BACK INTO THE REGION. AFTER A FEW DAYS OF TEMPERATURES IN
THE 40S, THE NEXT WINTER STORM BROUGHT VERY LIGHT SNOW FOLLOWED BY
FREEZING RAIN ON JANUARY 22 AND 23. WARMER WEATHER RETURNED AGAIN
LATER IN THE MONTH WHEN CONCORD REACHED 49 DEGREES ON JANUARY 27 AND
28, BUT A COLD FRONT BROUGHT COOLER TEMPERATURES AGAIN FOR THE LAST
FEW DAYS OF THE MONTH.

THE AVERAGE TEMPERATURE FOR THE MONTH WAS 22.0 DEGREES WHICH WAS 1.4
DEGREES ABOVE NORMAL. THE WARMEST JANUARY ON RECORD WAS IN 1932 WHEN
IT WAS 31.8 DEGREES. THE COLDEST WAS ONLY 10.6 DEGREES IN 1977. THE
INTENSE COLD SPELL THAT STARTED THE MONTH WAS ONE OF THE MOST LONG
LASTING ON RECORD AT CONCORD. THERE WERE 12 STRAIGHT DAYS OF SUBZERO
TEMPERATURES, TYING AS THE 4TH LONGEST SUCH STRETCH ON RECORD, AS
THE FOLLOWING TABLE SHOWS.

MOST CONSECUTIVE DAYS WITH TEMPERATURE ZERO OR LESS (SINCE 1868)...
RANK  DAYS  DATES
1      16   DEC 30, 1967 TO JAN 14, 1968
       16   JAN 23 TO FEB 7, 1948
3      13   FEB 7 TO FEB 19, 1875
4      12   DEC 27, 2017 TO JAN 7, 2018 <===
       12   FEB 9 TO FEB 20, 1979
       12   JAN 6 TO JAN 17, 1942
7      11   DEC 23, 1872 TO JAN 2, 1873
8      10   JAN 15 TO JAN 24, 1875

A TOTAL OF 3.18 INCHES OF PRECIPITATION FELL WHICH WAS 0.48 INCHES
ABOVE NORMAL. THE HEAVIEST PRECIPITATION FELL ON JANUARY 12 AND 13
WHEN 1.20 INCHES WAS RECORDED. THE WETTEST JANUARY ON RECORD WAS IN
1979 WHEN 8.09 INCHES FELL. THE DRIEST WAS IN 1970 WITH ONLY 0.40
INCHES.

THERE WAS A TOTAL OF 17.9 INCHES OF SNOWFALL WHICH WAS 0.2 INCHES
BELOW NORMAL. THE HEAVIEST SNOW FELL ON JANUARY 4 WHEN 13.0 INCHES
WAS RECORDED. THE LEAST SNOW TO FALL IN JANUARY WAS IN 1955 WHEN
ONLY 0.9 INCHES WAS RECORDED. THE SNOWIEST JANUARY WAS IN 1935 WHEN
46.7 INCHES FELL.

NO DAILY RECORDS WERE SET OR TIED IN JANUARY 2018.

$$

KIMBLE


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