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000
CXUS51 KGYX 110117
CLSCON

PWMCLSCON 000
TTAA00 GYX 082134

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
434 PM EST THU DEC 08 2022

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

...THE CONCORD NH CLIMATE SUMMARY FOR THE FALL SEASON, FROM
9/1/2022 TO 11/30/2022...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1868 TO 2022

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             98   09/02/1953
 LOW             -17   11/30/1875
HIGHEST           88   09/04         88       0       84  09/08
                                                          09/15
LOWEST            12   11/21         11       1       15  11/30
AVG. MAXIMUM    63.1               61.0     2.1     63.1
AVG. MINIMUM    38.8               38.5     0.3     41.1
MEAN            50.9               49.8     1.1     52.1
DAYS MAX >= 90     0                0.9    -0.9        0
DAYS MAX <= 32     0                1.5    -1.5        0
DAYS MIN <= 32    33               33.5    -0.5       25
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       22.08   2005
 MINIMUM        2.88   1908
TOTALS         10.26              11.50   -1.24    10.43
DAILY AVG.      0.11               0.13   -0.02     0.11
DAYS >= .01       30               30.7    -0.7       32
DAYS >= .10       20               19.1     0.9       20
DAYS >= .50       10                7.5     2.5        8
DAYS >= 1.00       2                3.0    -1.0        3
GREATEST
 24 HR. TOTAL   1.52   10/13 TO 10/14

SNOWFALL (INCHES)
RECORDS
 TOTAL          25.7   2011
TOTALS           0.7                3.3    -2.6      0.4
SINCE 7/1        0.7                3.3    -2.6      0.4
SNOWDEPTH AVG.     0
DAYS >= TRACE      3                1.8     1.2        3
DAYS >= 1.0        0                1.0    -1.0        0
GREATEST
 SNOW DEPTH        1   11/16
 24 HR TOTAL     0.7   11/16

DEGREE DAYS
HEATING TOTAL   1292               1441    -149     1190
 SINCE 7/1      1294               1473    -179     1214
COOLING TOTAL     33                 53     -20       42
 SINCE 1/1       650                528     122      658
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.4
HIGHEST WIND SPEED/DIRECTION    31/360    DATE  11/08
HIGHEST GUST SPEED/DIRECTION    43/330    DATE  11/26

SKY COVER
AVERAGE SKY COVER           0.39

AVERAGE RH (PERCENT)     72

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     HEAVY RAIN                10
RAIN                     17     LIGHT RAIN                33
FREEZING RAIN             0     LT FREEZING RAIN           0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                3     FOG                       47
FOG W/VIS <= 1/4 MILE    21     HAZE                       2

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

&&

A COLD FRONT CROSSED NEW ENGLAND TO START THE FALL SEASON FOLLOWED
BY A FEW DAYS OF HIGH PRESSURE THAT BROUGHT WARM AND SUNNY DAYS AND
COOL NIGHTS. ANOTHER COLD FRONT TRACKED INTO NEW ENGLAND AND STALLED
OVER THE AREA WITH SEVERAL WAVES OF LOW PRESSURE TRACKING ALONG THE
FRONT BRINGING PERIODS OF MODERATE TO HEAVY RAIN. THIS WAS THEN
FOLLOWED BY A DRIER STRETCH OF WEATHER FOR THE SECOND WEEK OF
SEPTEMBER BEFORE ANOTHER STALLED FRONTAL BOUNDARY BROUGHT A
WIDESPREAD SOAKING RAINFALL EVENT ON THE 18TH AND 19TH. ANOTHER
FEATURE OF INTEREST DURING SEPTEMBER WAS TROPICAL STORM FIONA
PASSING WELL OFFSHORE ON SEPTEMBER 23RD AND 24TH BRINGING HIGH SURF
CONDITIONS TO AREA BEACHES. DURING OCTOBER A RIDGE IN THE JET STREAM
DEVELOPED OVER THE WEST COAST OF NORTH AMERICA WITH A TROUGH OF LOW
PRESSURE OVER THE GREAT LAKES AND ANOTHER RIDGE NEAR NEWFOUNDLAND.
THIS JET STREAM CONFIGURATION LED TO SEVERAL FRONTAL SYSTEMS
TRACKING FROM THE OHIO VALLEY ACROSS NEW ENGLAND BRINGING PERIODS OF
RAIN AND MULTIPLE TEMPERATURE SWINGS. ALTHOUGH THIS WAS A RELATIVELY
ACTIVE PATTERN, THE CONCORD AREA WAS OFTEN TOO FAR WEST OF THE AXIS
OF HEAVIEST PRECIPITATION. THERE WAS A PRONOUNCED PATTERN CHANGE AT
THE END OF OCTOBER THROUGH EARLY NOVEMBER WHEN A TROUGH OF LOW
PRESSURE DEVELOPED ALONG THE WEST COAST OF NORTH AMERICA AND A RIDGE
OF HIGH PRESSURE FORMED OVER NEW ENGLAND. THIS LEAD TO MOSTLY DRY
CONDITIONS AND EXCEPTIONAL WARMTH THROUGH THE FIRST WEEK AND A HALF
OF NOVEMBER. DURING THE FIRST 12 DAYS OF NOVEMBER THE AVERAGE
TEMPERATURE WAS 53.3 DEGREES AND WAS THE WARMEST 12 DAY STRETCH
DURING NOVEMBER ON RECORD BY 0.5 DEGREES. ALSO DURING THIS STRETCH
THE HIGH TEMPERATURE EXCEEDED THE 70 DEGREE MARK FIVE TIMES WITH
FOUR DAYS IN A ROW ABOVE 70 DEGREES FROM THE 4TH THROUGH THE 7TH.
THE RIDGE OVER NEW ENGLAND BROKE DOWN DURING THE MIDDLE OF NOVEMBER
WITH THE DOMINANT PATTERN THROUGH THE END OF FALL CONSISTING OF A
RIDGE OF HIGH PRESSURE OVER WESTERN CANADA AND TROUGH OF LOW
PRESSURE OVER NEW ENGLAND. THIS PATTERN ALLOWED FOR A COUPLE OF
FRONTAL SYSTEMS TO CROSS NEW ENGLAND, BRINGING MAINLY BOUTS OF RAIN
ALTHOUGH CONCORD DID RECORD 0.7 INCHES OF SNOW THE MORNING OF THE
16TH. ADDITIONALLY, THE TROUGH OF LOW PRESSURE OVER NEW ENGLAND
ALLOWED TEMPERATURES TO TREND BELOW NORMAL THROUGH THE SECOND HALF
OF NOVEMBER.

THE AVERAGE TEMPERATURE FOR FALL WAS 50.9 DEGREES, WHICH WAS 1.1
DEGREES ABOVE NORMAL. THE WARMEST FALL ON RECORD WAS IN 2017 WHEN
THE AVERAGE TEMPERATURE WAS 53.5 DEGREES. THE COOLEST WAS 43.7
DEGREES IN 1972.

A TOTAL OF 10.26 INCHES OF PRECIPITATION FELL, WHICH WAS 1.24 INCHES
BELOW NORMAL. THE HEAVIEST PRECIPITATION FELL ON OCTOBER 13TH TO
14TH WHEN 1.52 INCHES OF RAIN FELL. THE DRIEST FALL ON RECORD WAS IN
1908 WHEN ONLY 2.88 INCHES OF PRECIPITATION FELL. THE WETTEST WAS
22.08 INCHES IN 2005.

ONLY 0.7 INCHES OF SNOW FELL, WHICH WAS 2.6 INCHES BELOW NORMAL.
SNOW IN FALL IS OFTEN HIT OR MISS. IN 155 YEARS OF RECORDS THERE
HAVE BEEN 3 YEARS WITH NO SNOW IN FALL, MOST RECENTLY IN 2015. THERE
HAVE BEEN AN ADDITIONAL 29 YEARS WHICH ONLY RECORDED A TRACE OF
SNOWFALL, MOST RECENTLY IN 2010. THE SNOWIEST FALL WAS IN 2011 WHEN
25.7 INCHES FELL.

THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN FALL 2022...

DATE    RECORD                                PREVIOUS
SEP 5   1.41  - GREATEST PRECIPITATION        0.97 IN 1944
OCT 26  61    - WARMEST LOW TEMPERATURE       52 IN 1918
NOV  5  78    - WARMEST HIGH TEMPERATURE      75 IN 1994
NOV  6  62*   - WARMEST LOW TEMPERATURE       60 IN 1938
NOV  6  75    - WARMEST HIGH TEMPERATURE      75 IN 1948 (TIED)
NOV 12  53    - WARMEST LOW TEMPERATURE       48 IN 1882

*THE RECORD WARM LOW TEMPERATURE OF 62 ON NOVEMBER 6TH WAS ALSO A
NEW ALL TIME RECORD WARM LOW FOR THE MONTH OF NOVEMBER. THE PREVIOUS
ALL TIME RECORD WARM LOW WAS 60 DEGREES SET MOST RECENTLY ON
NOVEMBER 8TH, 1996.

$$

DS