Climatological Report (Monthly)
Issued by NWS Portland, ME
Issued by NWS Portland, ME
000
CXUS51 KGYX 092002
CLMCON
PWMCLMCON 000
TTAA00 GYX 091958
CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
358 PM EDT WED AUG 09 2023
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...THE CONCORD NH CLIMATE SUMMARY FOR THE MONTH OF JULY 2023...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1868 TO 2023
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 35 07/07/1965
HIGHEST 92 07/06 93 -1 96 07/24
LOWEST 51 07/31 45 6 45 07/10
AVG. MAXIMUM 83.8 83.0 0.8 85.9
AVG. MINIMUM 62.8 59.2 3.6 58.6
MEAN 73.3 71.1 2.2 72.3
DAYS MAX >= 90 4 5.3 -1.3 9
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 13.04 2021
MINIMUM 0.91 1910
TOTALS 6.41 3.62 2.79 3.03
DAILY AVG. 0.21 0.12 0.09 0.10
DAYS >= .01 12 10.9 1.1 10
DAYS >= .10 9 6.4 2.6 5
DAYS >= .50 5 2.5 2.5 3
DAYS >= 1.00 2 0.8 1.2 1
GREATEST
24 HR. TOTAL 1.53 07/16
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 1 10 -9 2
SINCE 7/1 1 4 -3 2
COOLING TOTAL 269 200 69 232
SINCE 1/1 362 316 46 343
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WIND (MPH)
AVERAGE WIND SPEED 4.1
HIGHEST WIND SPEED/DIRECTION 22/260 DATE 07/24
HIGHEST GUST SPEED/DIRECTION 32/250 DATE 07/24
SKY COVER
AVERAGE SKY COVER 0.36
AVERAGE RH (PERCENT) 78
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 9 HEAVY RAIN 9
RAIN 8 LIGHT RAIN 12
FREEZING RAIN 0 LT FREEZING RAIN 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 FOG 25
FOG W/VIS <= 1/4 MILE 4 HAZE 3
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
&&
THE NAO REMAINED DEEP INTO NEGATIVE TERRITORY THROUGH THE FIRST TWO
WEEKS OF JULY ALLOWING FOR THE THEME OF WET, CLOUDY, AND OFTEN FOGGY
WEATHER TO CONTINUE IN THE CONCORD AREA. A BLOCKING RIDGE OF HIGH
PRESSURE NEAR LABRADOR, CANADA INHIBITED THE ABILITY FOR INCOMING
FRONTAL SYSTEMS TO SWEEP ACROSS NORTHERN NEW ENGLAND. INSTEAD, THESE
FRONTS OFTEN STALLED OVER THE AREA PROVIDING A FOCUS FOR HEAVY
RAINFALL EVENTS AND ALLOWED FOR HUMID AIRMASSES TO BECOME ENTRENCHED
ACROSS NORTHERN NEW ENGLAND. DURING THE SECOND HALF OF JULY THE NAO
TRENDED TOWARDS NEUTRAL AS THE BLOCKING RIDGE WEAKENED AND SHIFTED
EAST. HOWEVER, BROAD TROUGHING CONTINUED OVER THE NORTHEAST THROUGH
MUCH OF THE SECOND HALF OF THE MONTH, ONLY DURING THIS TIME FRONTS
WERE ABLE TO MAKE A CLEAN SWEEP ACROSS THE AREA LEAVING A FEW DAYS
OF DRY WEATHER IN BETWEEN SYSTEMS. THE HUMID AIRMASSES LIMITED THE
CONCORD AREA FROM COOLING OFF AT NIGHT THROUGH THE FIRST THREE WEEKS
OF THE MONTH. DURING THIS TIME LOW TEMPERATURES STAYED ABOVE 60
DEGREES AND THERE WERE A FEW NIGHTS WHEN THE LOW TEMPERATURE DID NOT
DROP BELOW 70 DEGREES. IT WASN`T UNTIL THE LAST WEEK OF THE MONTH
WHEN FRONTAL SYSTEMS WERE MORE PROGRESSIVE THAT LOW TEMPERATURES
WERE ABLE TO DROP INTO THE 50S.
THE AVERAGE TEMPERATURE FOR THE MONTH WAS 73.3 DEGREES, WHICH WAS
2.2 DEGREES ABOVE NORMAL. THE WARMEST JULY ON RECORD WAS IN 1872
WHEN THE AVERAGE TEMPERATURE WAS 75.2 DEGREES. THE COOLEST WAS 65.4
DEGREES IN 1969.
A TOTAL OF 6.41 INCHES OF PRECIPITATION FELL, WHICH WAS 2.79 INCHES
ABOVE NORMAL. THE HEAVIEST PRECIPITATION FELL ON THE 16TH WHEN 1.53
INCHES OF RAIN FELL. THE WETTEST JULY ON RECORD WAS IN 2021 WHEN
13.04 INCHES OF RAIN FELL. THE DRIEST WAS 0.91 INCHES IN 1910.
THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN JULY 2023...
DATE RECORD PREVIOUS
JUL 7 70 - WARMEST LOW TEMPERATURE 70 IN 1993 AND OTHERS
$$
DS