Climatological Report (Seasonal)
Issued by NWS Portland, ME

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CXUS51 KGYX 042130
CLSCON

PWMCLSCON 000
TTAA00 GYX 041415

CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
1015 AM EDT SUN SEP 04 2022

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

...THE CONCORD NH CLIMATE SUMMARY FOR THE SUMMER SEASON, FROM
6/1/2022 TO 8/31/2022...

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            102   07/03/1966
                       07/04/1911
 LOW              29   08/31/1965
HIGHEST           98   08/04         95       3       97  06/28
LOWEST            41   06/20         37       4       41  06/01
AVG. MAXIMUM    82.8               80.8     2.0     81.3
AVG. MINIMUM    57.1               56.7     0.4     59.3
MEAN            70.0               68.8     1.2     70.3
DAYS MAX >= 90    24               11.6    12.4       16
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.0     0.0        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       20.49   1897
 MINIMUM        2.74   1999
TOTALS          9.81              11.02   -1.21    17.69
DAILY AVG.      0.11               0.12   -0.01     0.19
DAYS >= .01       31               33.6    -2.6       43
DAYS >= .10       19               20.0    -1.0       30
DAYS >= .50        8                7.3     0.7       11
DAYS >= 1.00       2                2.8    -0.8        5
GREATEST
 24 HR. TOTAL   1.23   07/12

SNOWFALL (INCHES)
RECORDS
 TOTAL           0.0
TOTALS           0.0                0.0     0.0      0.0
SINCE 7/1        0.0                0.0     0.0      0.0
SNOWDEPTH AVG.     0
DAYS >= TRACE      0                0.0     0.0        0
DAYS >= 1.0        0                0.0     0.0        0
GREATEST
 SNOW DEPTH        0
 24 HR TOTAL       0

DEGREE DAYS
HEATING TOTAL     75                103     -28       69
 SINCE 7/1         2                 29     -27       24
COOLING TOTAL    561                453     108      585
 SINCE 1/1       617                475     142      616
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.2
HIGHEST WIND SPEED/DIRECTION    29/290    DATE  07/12
HIGHEST GUST SPEED/DIRECTION    50/360    DATE  08/22

SKY COVER
AVERAGE SKY COVER           0.32

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             13     HEAVY RAIN                11
RAIN                     14     LIGHT RAIN                35
FREEZING RAIN             0     LT FREEZING RAIN           0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     FOG                       32
FOG W/VIS <= 1/4 MILE     2     HAZE                       1

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

&&

THE SUMMER SEASON STARTED OFF COOL AND DAMP IN THE CONCORD AREA AS
AN UPPER LOW REMAINED NEARLY STATIONARY OVER THE CANADIAN MARITIMES
THROUGH THE FIRST SEVERAL DAYS OF JUNE. ONCE THIS UPPER LOW LOOSENED
ITS GRIP ON THE REGION, TEMPERATURES REBOUNDED CLOSER TO NORMAL
WHILE ADDITIONAL TROUGHS OF LOW PRESSURE CROSSED THE REGION BRINGING
A SOAKING RAIN TO BEGIN THE SECOND WEEK OF JUNE. ANOTHER UPPER LOW
ROLLED ACROSS SOUTHERN CANADA AND SETTLED OVER NEW ENGLAND AT THE
END OF THE THIRD WEEK OF JUNE BRINGING SEVERAL DAYS OF BELOW NORMAL
TEMPERATURES. DURING THIS PERIOD, THE UPPER LOW BROUGHT SUB-FREEZING
TEMPERATURES AT THE HIGHEST PEAKS IN THE WHITE MOUNTAINS WITH MT
WASHINGTON RECORDING 1.7 INCHES OF SNOW FROM THE 18TH INTO THE 19TH.
TEMPERATURES THEN REBOUNDED CLOSER TO NORMAL DURING THE FINAL WEEK
OF JUNE. THE PERSISTENT TROUGHING AND UPPER LOWS OVER THE NORTHEAST
LED TO TEMPERATURES RUNNING BELOW NORMAL FOR THE MONTH OF JUNE, BUT
THIS WOULD CHANGE THROUGH THE END OF SUMMER. THE PERSISTENT
TROUGHING OVER THE NORTHEAST US CONTINUED INTO JULY, ALTHOUGH THE
CORE OF THE TROUGH SHIFTED FARTHER NORTH INTO EASTERN CANADA WITH
THE TROUGH AXIS BECOMING ALIGNED ALONG A SIMILAR LONGITUDE TO
CONCORD. THIS TROUGH POSITION ACTED TO SUPPRESS MOISTURE SOUTH OF
NEW ENGLAND AND FAVORED HIGH PRESSURE SYSTEMS TO BUILD INTO NEW
ENGLAND FROM THE NORTHWEST BRINGING DRY AND COOL CANADIAN AIRMASSES
THROUGH THE MIDDLE OF JULY. HOWEVER, HEAT AND HUMIDITY DID BRIEFLY
BUILD INTO THE CONCORD REGION AHEAD OF A FRONTAL SYSTEM JULY 11TH
AND 12TH WITH THE FRONTAL SYSTEM BRINGING WIDESPREAD SEVERE STORMS
ACROSS MUCH OF NEW HAMPSHIRE ON THE 12TH. THIS WAS ALSO WHEN CONCORD
RECEIVED THE HEAVIEST RAINFALL OF THE SUMMER WHEN 1.23 INCHES OF
RAIN FELL. DURING THE THIRD WEEK OF JULY THE TROUGH STARTED TO SHIFT
TO THE WEST AND ALLOWED FOR WARMER AND MORE HUMID AIRMASSES TO ENTER
THE REGION. FROM JULY 19TH TO THE 24TH CONCORD EXPERIENCED 6
STRAIGHT DAYS WITH HIGH TEMPERATURES AT OR ABOVE 90 DEGREES. THE
HEAT AND HUMIDITY CONTINUED INTO AUGUST WITH THE HOTTEST STRETCH OF
THE SUMMER OCCURRING FROM AUGUST 2ND TO THE 9TH WHEN THE HIGH
TEMPERATURES CLIMBED TO AT LEAST 90 DEGREES WITH THE HOTTEST DAY
REACHING 98 DEGREES ON AUGUST 4TH. THIS SUMMER ENDED UP BEING THE
FIRST SUMMER ON RECORD WITH TWO HEAT WAVES OF AT LEAST 6+ DAYS WITH
TEMPERATURES REACHING OR EXCEEDING 90 DEGREES. A SLOW MOVING COLD
FRONT CROSSED THE AREA LATE AUGUST 9TH BRINGING RELIEF FROM THE HEAT
WITH TEMPERATURES RUNNING BELOW NORMAL THROUGH THE MIDDLE OF AUGUST.
THE SECOND HALF OF AUGUST FEATURED A BUILDING RIDGE IN THE WESTERN
ATLANTIC THAT ALLOWED FOR THE HEAT AND HUMIDITY TO RETURN WITH
TEMPERATURES RUNNING ABOVE NORMAL THROUGH THE END OF SUMMER.
RAINFALL AVERAGED BELOW NORMAL DURING ALL OF THE SUMMER MONTHS WITH
THE LAST MONTH THAT CONCORD RECEIVED ABOVE NORMAL RAINFALL OCCURRING
BACK IN APRIL. THIS LED TO EXPANDING AND INTENSIFYING DROUGHT
CONDITIONS ACROSS NEW ENGLAND DURING THE SUMMER WITH THE CONCORD
AREA STILL EXPERIENCING MODERATE TO SEVERE DROUGHT CONDITIONS TO
CLOSE OUT THE SUMMER SEASON.

THE AVERAGE TEMPERATURE FOR SUMMER WAS 70.0 DEGREES, WHICH WAS 1.2
DEGREES ABOVE NORMAL AND TIES WITH 2005 AND 1938 AS THE TENTH
WARMEST SUMMER ON RECORD. THE WARMEST SUMMER ON RECORD WAS IN 1872
WHEN THE AVERAGE TEMPERATURE WAS 72.3 DEGREES. THE COOLEST WAS 62.6
DEGREES IN 1903. THE FOLLOWING TABLE LISTS THE WARMEST SUMMERS ON
RECORD AT CONCORD.

WARMEST AVERAGE TEMPERATURE IN SUMMER (SINCE 1868)...
RANK  TEMP  YEAR
1     72.3  1872
2     72.1  1876
3     71.7  1870
4     70.7  2020
5     70.5  2016
6     70.4  1877
7     70.3  2021
8     70.2  2018
9     70.1  1949
10    70.0  2022  <===
      70.0  2005
      70.0  1938

A TOTAL OF 9.81 INCHES OF PRECIPITATION FELL, WHICH WAS 1.21 INCHES
BELOW NORMAL. THE DRIEST SUMMER ON RECORD WAS IN 1913 WHEN ONLY 3.65
INCHES FELL. THE WETTEST WAS 20.49 INCHES IN 1897. THE HEAVIEST
PRECIPITATION FELL FROM THUNDERSTORMS ON JULY 12TH WHEN 1.23 INCHES
FELL.

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

DATE    RECORD                               PREVIOUS
AUG 4   98      - WARMEST HIGH TEMPERATURE      97 IN 1944
AUG 8   96      - WARMEST HIGH TEMPERATURE      95 IN 2001, 1970

$$

DS


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