Climatological Report (Seasonal) Issued by NWS Portland, ME
659
CXUS51 KGYX 021642
CLSCON
PWMCLMCON 000
TTAA00 KGYX 011736
CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
1240 PM EDT WED SEP 2 2020
...................................
...THE CONCORD NH CLIMATE SUMMARY FOR THE SUMMER SEASON, FROM
6/1/2020 TO 8/31/2020...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1868 TO 2020
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 96 08/11 95 1 96 07/20
07/27
07/19
LOWEST 33 06/01 37 -4 38 06/04
AVG. MAXIMUM 83.7 80.2 3.5 81.6
AVG. MINIMUM 57.6 55.5 2.1 55.7
MEAN 70.7 67.8 2.9 68.7
DAYS MAX >= 90 24 9.9 14.1 10
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 5.92 10.61 -4.69 12.62
DAILY AVG. 0.07 0.12 -0.05 0.14
DAYS >= .01 31 33.4 -2.4 29
DAYS >= .10 13 20.2 -7.2 19
DAYS >= .50 5 7.0 -2.0 11
DAYS >= 1.00 1 2.6 -1.6 5
GREATEST
24 HR. TOTAL 1.31 06/28
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 0.0
DEGREE_DAYS
HEATING TOTAL 84 133 -49 91
SINCE 7/1 29 48 -19 20
COOLING TOTAL 634 395 239 450
SINCE 1/1 676 413 263 464
.................................................................
WIND (MPH)
AVERAGE WIND SPEED 5.0
HIGHEST WIND SPEED/DIRECTION 38/320 DATE 06/06
HIGHEST GUST SPEED/DIRECTION 52/310 DATE 06/06
SKY COVER
AVERAGE SKY COVER 0.40
AVERAGE RH (PERCENT) 68
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
&&
THE SUMMER MONTHS AT CONCORD WERE CHARACTERIZED BY VERY WARM AND
HUMID CONDITIONS AND BELOW NORMAL PRECIPITATION. HOWEVER, THAT IS
NOT HOW SUMMER BEGAN AS THE LOW TEMPERATURE ON JUNE 1 WAS 33
DEGREES, THE COLDEST TEMPERATURE OBSERVED AT CONCORD IN THE
MONTH OF JUNE SINCE 1969. WARMER AND MORE HUMID CONDITIONS
ARRIVED TOWARD THE MIDDLE OF JUNE AND PERSISTED, INCLUDING 5 OUT
OF 6 DAYS ABOVE 90 DEGREES FROM THE 18TH THROUGH THE 23RD. A
PROLONGED STRETCH OF DRY WEATHER BEGAN IN MID-MAY AND EXTENDED UNTIL
THE LAST THREE DAYS OF JUNE WHEN MORE THEN 2 INCHES OF RAIN FELL,
THE FIRST SIGNIFICANT PRECIPITATION AT CONCORD IN MORE THAN 40 DAYS.
MORE FREQUENT RAINFALL WAS OBSERVED FOR THE FIRST PART OF JULY TO
HELP EASE THE ONGOING DROUGHT BEFORE DRIER CONDITIONS RETURNED FOR
THE LATTER HALF OF THE MONTH. OTHER THAN A BRIEF RESPITE MID-MONTH,
JULY WAS WARM TO HOT AND HUMID WITH BOTH 3 STRAIGHT DAYS (JULY
18-20) AND 4 STRAIGHT DAYS (JULY 26-29) OF TEMPERATURES ABOVE 90
DEGREES. OVERALL, JULY WAS THE 3RD WARMEST MONTH ON RECORD AT
CONCORD. THE WARM AND HUMID CONDITIONS CONTINUED THROUGH THE
FIRST HALF OF AUGUST, INCLUDING ANOTHER STRETCH OF 5 OUT OF 6
DAYS ABOVE 90 DEGREES (AUGUST 9-14). A SERIES OF COLD FRONTS FINALLY
BROUGHT COOLER AND LESS HUMID CONDITIONS FOR THE LATTER HALF OF
AUGUST. HOWEVER, THE ONGOING DROUGHT CONDITIONS PERSISTED AS CONCORD
SAW ITS DRIEST AUGUST SINCE 2001.
THE AVERAGE TEMPERATURE FOR THE SUMMER WAS 70.7 DEGREES WHICH WAS
2.9 DEGREES ABOVE NORMAL AND THE 4TH WARMEST SUMMER ON RECORD. THE
WARMEST SUMMER 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 FOR SUMMER (SINCE 1868)...
RANK AVE 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 70.2 2018
8 70.1 1949
9 70.0 2005
70.0 1938
ALTHOUGH THE HOTTEST TEMPERATURE WAS 96, THERE WERE A TOTAL OF 24
DAYS THAT REACHED 90 OR HIGHER. THE WARMTH WAS ALSO NOTICEABLE IN
NIGHTTIME LOWS AS THE TEMPERATURE DID NOT COOL AS MUCH IN THE HUMID
CONDITIONS. THE FOLLOWING TABLE LISTS THE NUMBER OF 90 DEGREE DAYS
AND 60 DEGREE LOWS IN SUMMER.
SUMMER TEMPERATURES (SINCE 1868)...
HIGH 90+ LOW 60+
RANK DAYS YEAR | DAYS YEAR
1 29 1955 | 65 1877
2 26 1870 | 62 1876
3 25 1988 | 62 1872
4 25 1966 | 47 1973
5 24 2020 <=== | 44 1887
6 24 1949 | 43 2018
7 22 2016 | 42 2020 <===
8 22 1978 | 42 1994
9 21 2010 | 42 1988
10 21 2002 | 42 1939
A TOTAL OF 5.92 INCHES OF RAIN FELL WHICH WAS 4.69 INCHES BELOW
NORMAL AND THE DRIEST SUMMER SINCE 2016. THE HEAVIEST RAIN FELL AT
THE END OF JUNE WHEN FREQUENT SHOWERS AND THUNDERSTORMS DROPPED 2.14
INCHES OF RAIN FROM JUNE 28 THROUGH JUNE 30. THE DRIEST SUMMER WAS
IN 1913 WHEN ONLY 3.65 INCHES OF RAIN FELL. THE WETTEST WAS IN 1897
WITH 20.49 INCHES.
THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN SUMMER 2020...
DATE RECORD PREVIOUS
JUN 23 94 - WARMEST HIGH TEMPERATURE 94 IN 1975, 1888 (TIED)
JUL 11 72 - WARMEST LOW TEMPERATURE 72 IN 1911 & OTHERS (TIED)
$$
KIMBLE/WATSON