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881
CXUS51 KGYX 071015
CLACON

CONCORD CLIMATE DATA FOR THE YEAR 2013
NATIONAL WEATHER SERVICE GRAY ME
515 AM EST TUE JAN 7 2014

CONCORD NEW HAMPSHIRE

...STATISTICS...

HERE ARE SOME OF THE CLIMATOLOGICAL STATISTICS AND A
DISCUSSION OF THE WEATHER HIGHLIGHTS FOR THE PAST YEAR.

TEMPERATURE DATA        YEAR 2013       NORMAL          DEPARTURE

AVG. MONTHLY            46.4            46.4            NONE
AVG. MAXIMUM            57.9            58.0            MINUS 0.1
AVG. MINIMUM            34.8            34.8            NONE

NUMBER OF DAYS:         YEAR 2013       NORMAL

MAXIMUM 90 OR ABOVE      15               9.9           PLUS 5.1
MAXIMUM 32 OR BELOW      44              42.4           PLUS 1.6
MINIMUM 32 OR BELOW     177             163.6           PLUS 13.4
MINIMUM 0 OR BELOW        8               6.9           PLUS 1.1

HIGHEST TEMPERATURE... 95 ON JULY 5 & 19 AND SEPTEMBER 11
LOWEST TEMPERATURE...  -13 ON DECEMBER 17
COLDEST HIGH...        9 ON JANUARY 23
WARMEST LOW....        70 ON JULY 5

WARMEST DAY...  JULY 5 WITH AN AVERAGE OF 83 DEGREES
COLDEST DAY...  DECEMBER 17 WITH AN AVERAGE OF 0 DEGREES

                        YEAR 2013       NORMAL          DEPARTURE

HEATING DEGREE DAYS     7120            7236            MINUS 116
COOLING DEGREE DAYS      537             452             PLUS 85

HEATING AND COOLING DEGREE DAYS LISTED ARE FOR THE CALENDAR YEAR.
THE HEATING DEGREE DAY SEASON NORMALLY RUNS FROM JULY 1ST THROUGH
JUNE 30TH...WHILE THE COOLING DEGREE SEASON NORMALLY RUNS FROM
JANUARY 1ST THROUGH DECEMBER 31ST.

PRECIPITATION           40.79          40.61           PLUS 0.18
SNOWFALL                89.1           61.4            PLUS 27.7

GREATEST PRECIPITATION IN 24 HOURS...  2.48 INCHES ON SEPTEMBER 1-2
GREATEST SNOWFALL IN 24 HOURS...       23.5 INCHES ON FEBRUARY 8-9
GREATEST SNOW DEPTH ON GROUND...       19 INCHES ON FEBRUARY 10 AND 25

THE FOLLOWING DATA IS FOR A CALENDAR DAY /MIDNIGHT TO MIDNIGHT/...

NUMBER OF DAYS WITH PRECIPITATION OF            NORMAL  DEPARTURE
 .01 INCH OR MORE             138               130.9    PLUS 7.1
 .10 INCH OR MORE              78 78.3   MINUS 0.3
 .50 INCH OR MORE              29                27.1    PLUS 1.9
1.00 INCH OR MORE               9                 9.1   MINUS 0.1

NUMBER OF DAYS WITH SNOWFALL OF                 NORMAL
1 WHOLE INCH OR MORE           16                16.1   MINUS 0.1
3 WHOLE INCHES OR MORE          9
6 WHOLE INCHES OR MORE          5

NUMBER OF DAYS WITH THUNDERSTORMS...    25       19.9   PLUS 5.1
NUMBER OF DAYS WITH HEAVY FOG...        73       47.1   PLUS 25.9
   (VISIBILITY 1/4 MILE OR LESS)

...CONCORD NEW HAMPSHIRE 2013 MONTHLY TEMPERATURE DATA...
(RANK:  1 = WARMEST, 145 = COLDEST)

                                        DEPARTURE
MONTH   AVG HIGH   AVG LOW   MEAN TEMP  FROM NORMAL   RANK
JAN     33.4       12.2      22.8        PLUS 2.2     54TH (TIED)
FEB     33.3       17.0      25.2        PLUS 0.9     43RD (TIED)
MAR     42.5       23.2      32.9       MINUS 0.2     61ST
APR     58.5       32.0      45.3        PLUS 0.2     56TH (TIED)
MAY     71.0       42.4      56.7        PLUS 0.9     55TH (TIED)
JUN     77.9       54.0      66.0        PLUS 1.1     42ND (TIED)
JUL     84.2       62.3      73.3        PLUS 3.3     10TH
AUG     80.1       53.6      66.9       MINUS 1.6     86TH (TIED)
SEP     73.4       45.8      59.6       MINUS 0.4     77TH (TIED)
OCT     62.3       35.7      49.0        PLUS 0.8     71ST (TIED)
NOV     45.7       25.1      35.4       MINUS 2.9     114TH (TIED)
DEC     32.3       14.7      23.5       MINUS 3.3     100TH

YEAR    57.9       34.8      46.4       NONE          37TH (TIED)

...CONCORD NEW HAMPSHIRE 2013 MONTHLY PRECIPITATION DATA...
(RANK:  1 = WETTEST, 146 = DRIEST)

                        DEPARTURE
MONTH   PRECIPITATION   FROM NORMAL     RANK
JAN      1.55           MINUS 1.15      124TH
FEB      3.54            PLUS 0.92      30TH (TIED)
MAR      1.72           MINUS 1.55      115TH
APR      1.88           MINUS 1.53      116TH (TIED)
MAY      4.07            PLUS 0.41      39TH
JUN      6.78            PLUS 3.09      10TH
JUL      6.70            PLUS 2.96      8TH
AUG      2.05           MINUS 1.13      107TH (TIED)
SEP      4.81            PLUS 1.43      30TH
OCT      1.28           MINUS 2.76      123RD
NOV      3.02           MINUS 0.70      81ST
DEC      3.39            PLUS 0.19      64TH

YEAR    40.79            PLUS 0.18      51ST

...CONCORD NEW HAMPSHIRE 2013 MONTHLY SNOWFALL DATA...
(RANK: 1 = SNOWIEST, 146 = LEAST SNOWIEST)

                        DEPARTURE
MONTH   SNOWFALL        FROM NORMAL     RANK
JAN      9.2            MINUS 8.9       120TH (TIED)
FEB     43.6             PLUS 31.3      3RD
MAR     16.0             PLUS 4.9       37TH (TIED)
APR      0.2            MINUS 2.6       96TH (TIED)
MAY      0.0            NONE            31ST (TIED)
JUN      0.0            NONE            -----
JUL      0.0            NONE            -----
AUG      0.0            NONE            -----
SEP      0.0            NONE            -----
OCT    TRACE            NONE            16TH (TIED)
NOV      0.2            MINUS 2.4       104TH (TIED)
DEC     19.9             PLUS 5.4       30TH

YEAR    89.1             PLUS 27.7      -----

NOTE...SNOWFALL FOR THE YEAR IS GIVEN FOR THE CALENDAR YEAR.
NORMALLY SNOWFALL TOTALS AND RANKINGS ARE GIVEN FOR THE SEASON
...FROM JULY 1ST THROUGH JUNE 30TH.

STRONGEST WIND GUST... 58 MPH ON NOVEMBER 24TH

...DISCUSSION...

CONCORD NEW HAMPSHIRE IN 2013 HAD EXACTLY NORMAL TEMPERATURES FOR
THE YEAR WITH NEARLY NORMAL AMOUNTS OF ANNUAL PRECIPITATION BUT
WAS MUCH SNOWIER THAN NORMAL.

THE WEATHER HIGHLIGHTS FOR 2013 RANGED FROM A NEARLY RECORD
SETTING BLIZZARD IN FEBRUARY TO DAMAGING SEVERE THUNDERSTORM IN
JULY TO A NEAR RECORD HIGH TEMPERATURE IN SEPTEMBER TO STRONG
WIND GUSTS IN NOVEMBER.

FEBRUARY WILL BE MOST REMEMBERED FOR THE BLIZZARD OF 2013.
THOUGH THE STORM DIDN`T QUITE REACH BLIZZARD PROPORTIONS IN
CONCORD LIKE IT DID IN OTHER AREAS OF NEW ENGLAND IT STILL
GAVE CONCORD ITS SECOND BIGGEST SNOWFALL ON RECORD.

EXACTLY TWO FEET OF SNOW FELL DURING THE STORM ON THE 8TH AND 9TH.
THE 24.0 INCHES FELL SHORT OF THE RECORD 27.5 INCHES FROM MARCH
11TH THROUGH THE 13TH OF 1888 DURING THE "BLIZZARD OF `88".

THE 24 HOUR SNOWFALL OF 23.5 INCHES FROM 1 PM ON THE 8TH THROUGH 1
PM ON THE 9TH WAS THE SECOND GREATEST 24 HOUR SNOWFALL IN CONCORD.
THE OLD RECORD WAS ALSO FROM THE BLIZZARD OF `88 WHEN 24.0 INCHES
FELL OVER A 24 HOUR PERIOD ON MARCH 12TH, 1888.

THE STORM DUMPED 16.2 INCHES ON THE 9TH WHICH SET A RECORD FOR THE
DATE. THE OLD RECORD WAS 10.0 INCHES SET IN 1969. THE 7.8 INCHES
THAT FELL ON THE 8TH DID NOT SET A RECORD FOR SNOWFALL FOR THAT DATE.

FOR THE MONTH CONCORD RECORDED 43.6 INCHES OF SNOW. THIS WAS THE 3RD
MOST FOR THE MONTH OF FEBRUARY AND THE 6TH MOST SNOW FOR ANY MONTH.
THE SNOWIEST FEBRUARY WAS 59.0 INCHES IN 1893. THIS WAS ALSO THE
SNOWIEST MONTH EVER. THE 2ND SNOWIEST FEBRUARY WAS 49.8 INCHES IN
1969.

LATER IN THE MONTH OF FEBRUARY CONCORD HAD STRONG WINDS ON THE 17TH
WITH A PEAK GUST OF 52 MPH. THIS WILL BE THE FIRST OF FOUR DAYS IN
2013 WITH PEAK WIND GUSTS OVER 50 MPH.

CONCORD HAD A SEVERE THUNDERSTORM ON JULY 19TH. THE AIRPORT RECORDED
A PEAK WIND GUST OF 56 MPH WITH REPORTS OF WIND DAMAGE THROUGHOUT THE
CITY.

CONCORD HAD ANOTHER PEAK WIND GUST OF 56 MPH WHICH OCCURRED ON OCTOBER
7TH AS STRONG WESTERLY WINDS BLEW ACROSS NEW ENGLAND. THIS SET A RECORD
FOR THE STRONGEST WIND GUST IN CONCORD IN OCTOBER...SURPASSING THE 55 MPH
WIND GUST SET JUST LAST YEAR ON OCTOBER 29TH DURING HURRICANE SANDY.

THE 56 MPH WIND GUSTS ON JULY 19TH AND OCTOBER 7TH THIS YEAR TIED A 56
MPH WIND GUST ON SEPTEMBER 21, 1938 DURING THE GREAT NEW ENGLAND
HURRICANE AS THE 10TH STRONGEST WIND GUST EVER RECORDED IN CONCORD. THE
ALL TIME RECORD WIND GUST IS 72 MPH MEASURED ON NOVEMBER 26, 1950.

CONCORD HAD AN EVEN STRONGER WIND GUST ON NOVEMBER 24TH WHEN A PEAK
GUST OF 58 MPH WAS MEASURED JUST BEFORE POWER TO THE AUTOMATED
WEATHER SYSTEM WAS KNOCKED OUT (SEE NOTE AT THE END OF THIS SUMMARY).
THERE IS THE CHANCE THAT WINDS MAY HAVE GUSTED EVEN HIGHER AFTER
THE POWER OUTAGE. THE 58 MPH GUST TIED AS THE 8TH STRONGEST ON
RECORD...BUT FELL FAR SHORT OF THE RECORD 72 MPH GUST FOR THE
MONTH OF NOVEMBER.

HERE IS A LIST OF THE STRONGEST WIND GUSTS RECORDED IN CONCORD...

RANK    WIND GUST   DATE            REMARKS
 1      72 MPH      NOV. 26, 1950
 2      71 MPH      MAR. 23, 1950
 3      68 MPH      FEB. 25, 2010
 4      66 MPH      JUNE 1, 2007    THUNDERSTORM
 5      61 MPH      APR. 5, 1995
 6      60 MPH      FEB. 12, 1988
 7      59 MPH      JUNE 16, 1986   THUNDERSTORM
 8      58 MPH      JUNE 9, 2004    THUNDERSTORM
        58 MPH      DEC. 26, 1993
        58 MPH      NOV. 24, 2013                         <===
11      56 MPH      JULY 19, 2013   THUNDERSTORM          <===
        56 MPH      SEP. 21, 1938   NEW ENGLAND HURRICANE
        56 MPH      SEP. 1934       EXACT DATE UNKNOWN
        56 MPH      OCT. 7, 2013                          <===
15      55 MPH      FEB. 17, 2006
        55 MPH      OCT. 29, 2012   HURRICANE/SUPERSTORM SANDY

THREE OF THE TOP 14 WIND GUSTS IN CONCORD OCCURRED IN 2013.

TEMPERATURES IN 2013 IN CONCORD RANGED FROM A LOW OF MINUS 13 ON
DECEMBER 17TH TO A HIGH OF 95 WHICH OCCURRED THREE TIMES... TWICE
IN JULY ON THE 5TH AND 19TH AND ONCE IN SEPTEMBER.

ON SEPTEMBER 11TH THE TEMPERATURE SOARED TO 95 DEGREES WHICH TIED
THE RECORD FOR THE DATE PREVIOUSLY SET BACK IN 1983. THIS WAS THREE
DEGREES SHY OF THE ALL TIME SEPTEMBER HIGH TEMPERATURE OF 98 DEGREES
WHICH WAS ESTABLISHED ON SEPTEMBER 2, 1953.

CONCORD ENDED THE YEAR WITH A VERY COLD AND SNOWY DECEMBER...THOUGH
CONCORD SAW ITS COLDEST DAY OF THE YEAR ON DECEMBER 17TH WHEN THE
AVERAGE TEMPERATURE FOR THE DAY WAS ZERO DEGREES. DECEMBER HAD THE
GREATEST COLDEST DEPARTURE FROM NORMAL FOR ANY MONTH IN 2013 WHEN
THE AVERAGE TEMPERATURE WAS 3.3 DEGREES BELOW NORMAL. THERE WERE
FOUR OTHER MONTHS WITH BELOW NORMAL TEMPERATURES.

THERE WERE SEVEN MONTHS WITH ABOVE NORMAL TEMPERATURES LED BY
JULY WHICH WAS 3.3 DEGREES ABOVE NORMAL FOLLOWED BY JANUARY WHICH
WAS 2.2 DEGREES ABOVE NORMAL.

THE WETTEST MONTH IN 2013 WAS JUNE WITH 6.78 INCHES OF RAIN WHICH
WAS THE 10TH WETTEST JUNE ON RECORD. THIS WAS FOLLOWED BY JULY
WHICH WAS THE SECOND WETTEST MONTH IN 2013 WITH 6.70 INCHES OF
RAIN. THIS WAS THE 8TH WETTEST JULY ON RECORD. AUGUST ENDED THE
SUMMER WITH ONLY 2.05 INCHES OF RAIN BUT WAS ENOUGH TO GIVE THE
SUMMER SEASON A TOTAL OF 15.53 INCHES OF RAIN. THIS WAS NEARLY
FIVE INCHES (4.92 INCHES) ABOVE NORMAL AND THE 10TH WETTEST
SUMMER ON RECORD.

IN THE MONTH OF DECEMBER CONCORD PICKED UP 19.9 INCHES OF SNOW...
SECOND IN 2013 ONLY TO FEBRUARY`S 43.6 INCHES. MARCH WAS THE THIRD
SNOWIEST MONTH WITH 16.0 INCHES OF SNOW WHILE JANUARY CAME IN WITH
ONLY 9.2 INCHES OF SNOW...ABOUT HALF THE NORMAL JANUARY SNOWFALL.

...RECORDS...

HERE IS A LIST OF DAILY TEMPERATURE AND PRECIPITATION RECORDS SET
OR TIED IN CONCORD IN 2013...

DATE    RECORD          PREVIOUS RECORD & YEAR
FEB  9      0.91 - GREATEST PRECIPITATION     0.86 INCHES IN 1969
FEB  9      16.2 - GREATEST SNOWFALL          10.0 INCHES IN 1969
FEB 24      13.1 - GREATEST SNOWFALL          11.0 INCHES IN 1969
MAR 19      11.0 - GREATEST SNOWFALL          6.9 INCHES IN 1971
MAY 31      94 - RECORD HIGH TEMPERATURE      93 DEGREES IN 1937 & 1987
JUN  1      94 - RECORD HIGH TEMPERATURE      94 DEGREES IN 1879 /TIED/
JUL 23      2.40 - GREATEST PRECIPITATION     1.53 INCHES IN 2002
SEP  1      1.68 - GREATEST PRECIPITATION     1.32 INCHES IN 1927
SEP 11      95 - WARMEST HIGH TEMPERATURE     95 DEGREES IN 1983 /TIED/
NOV 27      1.93 - GREATEST PRECIPITATION     1.17 INCHES IN 1965

CONCORD DID NOT SET OR TIE ANY TEMPERATURE OR PRECIPITATION RECORDS
IN THE MONTHS OF JANUARY, APRIL, AUGUST, OCTOBER AND DECEMBER OF 2013.

HERE IS A LIST OF MONTHLY RECORDS SET OR TIED IN CONCORD IN 2013...

DATE     RECORD                       PREVIOUS RECORD & YEAR
OCT  7       56 - STRONGEST WIND GUST          55 MPH OCT 29, 2012

NOTE...
DUE TO A POWER OUTAGE DURING THE NIGHT OF NOVEMBER 25TH INTO THE MORNING
OF NOVEMBER 26TH CONCORD LOST DATA FOR A PERIOD OF ABOUT 17 HOURS. THIS
INCLUDED VALUABLE TEMPERATURE DATA. AS A RESULT LOW TEMPERATURES FOR BOTH
DATES ARE UNAVAILABLE. HIGH TEMPERATURES WERE ABLE TO BE DETERMINED FOR
BOTH DAYS...AS WAS PRECIPITATION DATA. THE AVERAGE LOW FOR THE MONTH WAS
BASED ON THE AVAILABLE 28 DAYS OF DATA. THE AVERAGE FOR THE MONTH IS
BASED ON AN AVERAGE OF THE MONTHLY HIGH (FOR 30 DAYS) AND THE MONTHLY
LOW (FOR 28 DAYS). SINCE VERY COLD AIR DOMINATED THESE TWO DAYS THE
AVERAGE MONTHLY LOW AND AVERAGE MONTHLY TEMPERATURE WERE LIKELY LOWER
THAN WHAT IS REPORTED HERE...WITH THE AVERAGE MONTHLY TEMPERATURE OFF
BY AS MUCH AS HALF A DEGREE /0.5 DEGREE/. THE DEPARTURE FROM NORMAL
WOULD BE GREATER THAN THE MINUS 2.9 DEGREES...PERHAPS AS MUCH AS MINUS
3.4 DEGREES. THIS WOULD ALSO AFFECT THE RANKING OF THIS NOVEMBER
COMPARED TO OTHER NOVEMBERS...MAKING IT HIGHER ON THE LIST OF COLDEST
NOVEMBERS. THE IMPACT OF THIS MISSING DATA WOULD ALSO AFFECT THE
SEASONAL NUMBERS...BUT TO A MUCH LESSER DEGREE.

$$

SJC







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