Climatological Report (Annual)
Issued by NWS Portland, ME

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000
CXUS51 KGYX 041254
CLACON

PWMCLMCON 000
TTAA00 KGYX 021759


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
754 AM EST MON JAN 4 2016

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

...THE CONCORD NH CLIMATE SUMMARY FOR THE YEAR OF 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1868 TO 2016

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             102   07/03/1966
                        07/04/1911
 LOW              -37   02/16/1943
HIGHEST            96   07/29        96       0       92  07/02
LOWEST            -21   02/24       -15      -6      -17  01/04
AVG. MAXIMUM     59.1              58.0     1.1     56.7
AVG. MINIMUM     34.7              34.8    -0.1     34.2
MEAN             46.9              46.4     0.5     45.5
DAYS MAX >= 90     17              11.5     5.5        3
DAYS MAX <= 32     56              45.3    10.7       54
DAYS MIN <= 32    156             167.0   -11.0      162
DAYS MIN <= 0      25              14.8    10.2       25

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        57.99   2008
 MINIMUM        24.17   1965
TOTALS          38.31             40.61   -2.30    46.03
DAILY AVG.       0.11              0.11    0.00     0.13
DAYS >= .01       128             130.9    -2.9      141
DAYS >= .10        66              78.4   -12.4       82
DAYS >= .50        24              27.0    -3.0       31
DAYS >= 1.00        7               9.3    -2.3       11
GREATEST
 24 HR. TOTAL    3.83   09/29 TO 09/30

SNOWFALL (INCHES)
RECORDS
 TOTAL          128.4   1956
TOTALS           80.0              61.4    18.6     76.7
SINCE 7/1         4.4              17.1   -12.7     16.6
SNOWDEPTH AVG.      4
DAYS >= TRACE      50              30.0    20.0       52
DAYS >= 1.0        19              16.2     2.8       18
GREATEST
 SNOW DEPTH        29   02/16
                        02/15
 24 HR TOTAL     12.8   01/27

DEGREE_DAYS
HEATING TOTAL    7036              7236    -200     7369
 SINCE 7/1       2114              2746    -632     2540
COOLING TOTAL     597               452     145      387
 SINCE 1/1        597               452     145      387
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.7
HIGHEST WIND SPEED/DIRECTION    40/320    DATE  03/17
HIGHEST GUST SPEED/DIRECTION    51/310    DATE  03/17

SKY COVER
AVERAGE SKY COVER           0.40

AVERAGE RH (PERCENT)     66

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             22     HEAVY RAIN                25
RAIN                     47     LIGHT RAIN               106
FREEZING RAIN             4     LT FREEZING RAIN           9
HEAVY SNOW                5     SNOW                      19
LIGHT SNOW               47     FOG                      179
FOG W/VIS <= 1/4 MILE    53     HAZE                      56

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

&&

AS 2015 BEGAN, THE WEATHER PATTERN SHIFTED AND BEGAN BRINGING COLDER
AIR INTO NEW ENGLAND. BY LATE JANUARY A PERSISTENT STORM TRACK
BROUGHT FRESH SNOWFALL EVERY FEW DAYS. FROM JANUARY 24TH THROUGH
FEBRUARY 22ND, CONCORD NEVER WENT MORE THAN 2 DAYS WITHOUT
MEASURABLE SNOWFALL, CULMINATING IN A PEAK SNOW DEPTH OF 29 INCHES
ON FEBRUARY 15TH AND 16TH. THE BIGGEST SNOWSTORM WAS ON JANUARY 27TH
AND 28TH WHEN 13.0 INCHES OF SNOW FELL, ACCOMPANIED BY STRONG WINDS.
WITH THE STORM TRACK OFFSHORE, THE COLD WEATHER OVER NEW ENGLAND
NEVER ABATED AND EVEN GREW MORE INTENSE THROUGH FEBRUARY. THE
COLDEST TEMPERATURE OF THE YEAR WAS ON FEBRUARY 24TH WHEN THE
TEMPERATURE DROPPED TO -21 DEGREES. CONCORD ENDURED ITS SECOND
COLDEST AND 4TH SNOWIEST FEBRUARY ON RECORD. THE BITTER COLD
CONTINUED INTO MARCH, BUT AT LEAST THE SNOW LET UP A LITTLE.

IT WASN`T UNTIL APRIL THAT MORE SPRING-LIKE WEATHER FINALLY ARRIVED.
THE LAST SNOWFALL OF THE SEASON WAS ON APRIL 8TH AND 9TH AND THE
LAST OF THE WINTER SNOW PACK WAS GONE BY THE MORNING OF THE 12TH.
THE NEXT DAY THE TEMPERATURE SOARED TO 74 DEGREES! THE SPRING WARMTH
WAS FINALLY EDGING OUT THE WINTER COLD. IN ONLY A COUPLE OF WEEKS
CONCORD WAS ENDURING SUMMER-LIKE WARMTH AS THE TEMPERATURE SOARED TO
90 DEGREES FOR THE FIRST TIME ON MAY 10TH. ALTHOUGH COLDER AIR
BROUGHT ONE FINAL FREEZE ON MAY 14TH IT WAS THE WARM AND DRY WEATHER
THAT WOULD DOMINATE THE MONTH OF MAY. MAY 2015 FINISHED AS THE
SECOND WARMEST AND 6TH DRIEST ON RECORD.

AS THE CALENDAR TURNED FROM MAY TO JUNE, A STORM SYSTEM BROUGHT 1.82
INCHES OF RAINFALL FROM MAY 31ST TO JUNE 2ND AND USHERED IN A CHANGE
IN THE WEATHER PATTERN AS JUNE WOULD BE COOLER AND WETTER THAN
NORMAL. IT WAS THE FIRST TIME IN THE 147-YEARS OF RECORDS AT CONCORD
THAT THE AVERAGE HIGH TEMPERATURE IN JUNE WAS COLDER THAN THE
AVERAGE HIGH IN MAY. THAT PATTERN WOULD SLOWLY CHANGE THROUGH JULY
WITH WARMER AND DRIER WEATHER BECOMING MORE COMMON. FROM JULY 27TH
THROUGH AUGUST 10TH CONCORD SAW 15 STRAIGHT DAYS TOP 80 DEGREES
INCLUDING THE HOTTEST TEMPERATURE OF THE YEAR ON JULY 29TH WHEN THE
TEMPERATURE REACHED 96 DEGREES. THE WARM WEATHER CONTINUED THROUGH
AUGUST AND HELPED FUEL THUNDERSTORMS ON AT LEAST 7 DAYS DURING THE
MONTH. A HEAVY THUNDERSTORM ON AUGUST 18TH BROUGHT 2.48 INCHES OF
RAINFALL IN JUST A FEW HOURS AND CAUSED EQUIPMENT PROBLEMS RESULTING
IN TWO MISSING DAYS OF DATA. THE SUMMER WARMTH CONTINUED WELL INTO
SEPTEMBER LEADING TO THE THIRD WARMEST SEPTEMBER ON RECORD.

THE HEAVIEST RAINFALL OF THE YEAR OCCURRED ON SEPTEMBER 29TH AND
30TH WHEN 3.83 INCHES OF RAIN FELL. THIS STORM SYSTEM BROUGHT A
CHANGE TO THE WEATHER PATTERN LEADING TO MORE FALL-LIKE TEMPERATURES
FOR MUCH OF OCTOBER. THE FIRST FREEZE OF THE SEASON WAS ON OCTOBER
5TH WHICH IS ABOUT ONE WEEK LATER THAN NORMAL. GRADUALLY THE WEATHER
PATTERN BEGAN TO SHIFT AGAIN WITH A RIDGE OF HIGH PRESSURE BECOMING
ENTRENCHED OVER THE EASTERN UNITED STATES LEADING TO PERSISTENT WARM
WEATHER THROUGH NOVEMBER AND DECEMBER. NOVEMBER TIED FOR THE 5TH
WARMEST ON RECORD AND DECEMBER WAS THE WARMEST ON RECORD BY MORE
THAN 2 DEGREES INCLUDING A RECORD HIGH OF 62 DEGREES ON CHRISTMAS
DAY. THE FIRST SNOWFALL OF THE SEASON DID NOT OCCUR UNTIL DECEMBER
29TH, THE SECOND LATEST DATE OF FIRST SNOWFALL ON RECORD.

DATE OF FIRST MEASURABLE SNOWFALL OF THE SEASON (SINCE 1868)
RANK  DATE    SEASON
1     JAN 13  1999-00
2     DEC 29  2015-16 <===
3     DEC 24  1912-13
4     DEC 22  2010-11
5     DEC 20  1946-47
6     DEC 19  1948-49
7     DEC 16  1973-74
8     DEC 15  1950-51
      DEC 15  1884-85
10    DEC 13  1909-10

THE AVERAGE TEMPERATURE FOR THE YEAR WAS 46.9 DEGREES WHICH WAS 0.5
DEGREES ABOVE NORMAL. THE WARMEST YEARLY AVERAGE TEMPERATURE WAS
49.2 DEGREES AND OCCURRED IN 2012 AND 1878. THE COOLEST WAS 1918
WHEN THE AVERAGE TEMPERATURE WAS ONLY 41.1 DEGREES. THE FOLLOWING
TABLE LISTS THE AVERAGE TEMPERATURES FOR EACH MONTH OF 2015
INCLUDING DEPARTURES FROM NORMAL.

AVERAGE TEMPERATURE BY MONTH IN 2015
MONTH      MAXIMUM       MINIMUM       AVERAGE
JANUARY    28.8  (-2.0)   7.8  (-2.6)  18.3  (-2.3)
FEBRUARY   24.2 (-10.7)   0.0 (-13.8)  12.1 (-12.2)
MARCH      38.9  (-4.9)  16.5  (-6.0)  27.7  (-5.4)
APRIL      56.9  (-0.5)  32.1  (-0.6)  44.5  (-0.6)
MAY        77.7  (+8.8)  45.9  (+3.3)  61.8  (+6.0)
JUNE       75.4  (-2.0)  52.1  (-0.4)  63.8  (-1.1)
JULY       83.4  (+1.1)  58.2  (+0.5)  70.8  (+0.8)
AUGUST     84.2  (+3.3)  57.5  (+1.4)  70.8  (+2.3)
SEPTEMBER  78.9  (+6.3)  51.5  (+4.1)  65.2  (+5.2)
OCTOBER    60.7  (+0.2)  35.2  (-0.6)  48.0  (-0.2)
NOVEMBER   54.6  (+6.2)  30.1  (+1.9)  42.3  (+4.0)
DECEMBER   45.6  (+9.3)  29.8 (+12.6)  37.7 (+10.9)
ANNUAL     59.1  (+1.1)  34.7  (-0.1)  46.9  (+0.5)

THE YEAR 2015 WAS A YEAR FEATURING MANY EXTREMES. FEBRUARY WAS THE
SECOND COLDEST AND 4TH SNOWIEST. MAY WAS THE SECOND WARMEST AND 6TH
DRIEST. SEPTEMBER WAS THE THIRD WARMEST. NOVEMBER WAS THE 5TH
WARMEST AND DECEMBER WAS THE WARMEST ON RECORD. WHEN MEASURING AS A
DEPARTURE FROM NORMAL (1981-2010 AVERAGE), FEBRUARY AND DECEMBER
RANKED IN THE TOP TEN MOST EXTREME MONTHS ON RECORD AT CONCORD. THE
FOLLOWING TABLE LISTS THE MOST EXTREME MONTHS AS A DEPARTURE FROM
NORMAL.

MOST EXTREME MONTHS (SINCE 1868)
       WARMEST                  |      COLDEST
RANK  DEPARTURE  MONTH          |  DEPARTURE  MONTH
1       +11.2    JAN 1932       |    -14.9    DEC 1989
2       +10.9    DEC 2015 <===  |    -12.3    FEB 1934
3       +10.8    JAN 1880       |    -12.2    FEB 2015 <===
4       +10.5    JAN 1913       |    -11.1    DEC 1917
5       +10.2    JAN 1933       |    -10.8    FEB 1978
6        +9.4    NOV 1879       |    -10.7    DEC 1976
7        +9.0    MAR 2012       |    -10.0    JAN 1917
8        +9.0    JAN 1937       |     -9.7    JAN 1982
9        +8.8    JAN 1870       |     -9.7    JAN 1976
10       +8.6    DEC 1891*      |     -9.7    FEB 1875

* MOST RECENT OF MULTIPLE YEARS

THANKS TO THE WARM MAY, AUGUST, AND SEPTEMBER, THE YEAR 2015 IN
CONCORD ALSO RANKED IN THE TOP TEN FOR NUMBER OF DAYS REACHING 80
DEGREES OR WARMER. THE FOLLOWING TABLE LISTS THE NUMBER OF DAYS THE
HIGH TEMPERATURE REACHED 80 DEGREES.

MAXIMUM TEMPERATURE 80 DEGREES OR HIGHER (SINCE 1868)
RANK  DAYS  YEAR
1      97   1870
2      87   2015 <===
3      85   2012
4      84   2010
5      83   1959
6      82   1947
7      81   2011
       81   2007
       81   2005
       81   1991
       81   1966
       81   1941

A TOTAL OF 38.31 INCHES OF PRECIPITATION FELL IN 2015 WHICH WAS 2.30
INCHES BELOW NORMAL AND THE DRIEST YEAR SINCE 2010. THE HEAVIEST
RAIN FELL ON SEPTEMBER 29TH AND 30TH WHEN 3.83 INCHES OF RAIN WAS
MEASURED. THE WETTEST YEAR ON RECORD WAS 2008 WHEN 57.99 INCHES OF
PRECIPITATION FELL. THE DRIEST WAS 1965 WITH ONLY 24.17 INCHES. THE
FOLLOWING TABLE LISTS THE PRECIPITATION AND SNOWFALL AMOUNTS FOR
EACH MONTH OF 2015 INCLUDING DEPARTURES FROM NORMAL.

MONTHLY PRECIPITATION AND SNOWFALL TOTALS FOR 2015
MONTH     PRECIPITATION   SNOWFALL
JANUARY   3.27  (+0.57)   25.1  (+7.0)
FEBRUARY  2.79  (+0.17)   42.5 (+30.2)
MARCH     1.48  (-1.79)   5.8   (-5.3)
APRIL     2.26  (-1.15)   2.1   (-0.7)
MAY       0.65  (-3.01)   0.0
JUNE      5.30  (+1.61)   0.0
JULY      2.03  (-1.71)   0.0
AUGUST    5.56  (+2.38)   0.0
SEPTEMBER 5.37  (+1.99)   0.0
OCTOBER   2.92  (-1.12)   0.0
NOVEMBER  1.90  (-1.82)   0.0   (-2.6)
DECEMBER  4.78  (+1.58)   4.4  (-10.1)
ANNUAL    38.31 (-2.30)   80.0 (+18.6)

THERE WERE ONLY 7 DAYS IN 2015 WITH AT LEAST 1.00 INCH OF
PRECIPITATION. THIS IS 2.3 DAYS BELOW NORMAL AND THE FEWEST SINCE
1997 (5 DAYS). THE FOLLOWING TABLE LISTS THE DAYS WHICH RECORDED AT
LEAST 1.00 INCH OF PRECIPITATION IN 2015.

DAYS WITH AT LEAST 1.00 INCH OF PRECIPITATION IN 2015
DAY           PRECIPITATION
JUNE 1        1.08
JUNE 28       1.72
JULY 1        1.24
AUGUST 18     2.48
AUGUST 25     1.60
SEPTEMBER 30  3.60
DECEMBER 29   1.15

SNOWFALL STATISTICS ARE NORMALLY LISTED BY SEASON RATHER THAN BY
CALENDAR YEAR. HOWEVER, 2015 SAW 80.0 INCHES OF SNOWFALL WHICH WAS
18.6 INCHES ABOVE NORMAL. THE HEAVIEST SNOWSTORM WAS ON JANUARY 27TH
AND 28TH WHEN 13.0 INCHES OF SNOW FELL. THERE WERE 19 DAYS IN 2015
WHICH MEASURED AT LEAST 1.0 INCH OF SNOWFALL, THE MOST SINCE 2008.
THE FOLLOWING TABLE LISTS THE DAYS WHICH RECEIVED AT LEAST 6.0
INCHES OF SNOWFALL IN 2015.

DAYS WITH AT LEAST 6 INCHES OF SNOWFALL IN 2015
DAY           SNOWFALL
JANUARY 27    12.8
FEBRUARY 2    9.9
FEBRUARY 15   6.1

THERE WERE 101 DAYS WITH AT LEAST 1 INCH OF SNOW ON THE GROUND,
WHICH IS 21 DAYS MORE THAN AVERAGE AND THE THIRD STRAIGHT YEAR WITH
AT LEAST 100 DAYS WITH 1 INCH OF SNOW ON THE GROUND. THERE WERE 66
DAYS WITH AT LEAST 6 INCHES OF SNOW ON THE GROUND, WHICH IS 23 DAYS
MORE THAN AVERAGE AND THE THIRD STRAIGHT YEAR WITH AT LEAST 65 SUCH
DAYS. THERE WERE 51 DAYS WITH AT LEAST 12 INCHES OF SNOW ON THE
GROUND, 32 DAYS MORE THAN AVERAGE. AT LEAST 18 INCHES OF SNOW WAS ON
THE GROUND ON 33 DAYS, 24 MORE THAN AVERAGE.  THERE WERE 11 DAYS
WITH AT LEAST 24 INCHES OF SNOW ON THE GROUND, 8 MORE THAN AVERAGE
AND THE MOST SINCE 2011. SNOW DEPTH PEAKED AT 29 INCHES ON FEBRUARY
15TH AND 16TH.

THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN 2015...
DATE    RECORD                              PREVIOUS
FEB 21  -17  - COLDEST LOW TEMPERATURE      -13 IN 1993
FEB 24  -21  - COLDEST LOW TEMPERATURE      -17 IN 1894
JUN 28  1.72 - GREATEST PRECIPITATION       1.62 IN 1968
DEC 25  62   - WARMEST HIGH TEMPERATURE     56 IN 1889

$$

KIMBLE



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