Climatological Report (Monthly)
Issued by NWS Portland, ME
Issued by NWS Portland, ME
000 CXUS51 KGYX 030304 CLMCON PWMCLMCON 000 TTAA00 GYX 011103 CLIMATE REPORT NATIONAL WEATHER SERVICE GRAY ME 703 AM EDT FRI SEP 01 2023 ................................... ...THE CONCORD NH CLIMATE SUMMARY FOR THE MONTH OF AUGUST 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 101 08/02/1975 LOW 29 08/31/1965 HIGHEST 85 08/13 92 -7 98 08/04 08/21 08/30 LOWEST 45 08/02 42 3 49 08/16 AVG. MAXIMUM 78.8 81.7 -2.9 86.4 AVG. MINIMUM 56.4 57.2 -0.8 60.6 MEAN 67.6 69.5 -1.9 73.5 DAYS MAX >= 90 0 3.5 -3.5 14 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 10.67 2018 MINIMUM 0.06 1996 TOTALS 4.49 3.63 0.86 3.54 DAILY AVG. 0.14 0.12 0.02 0.11 DAYS >= .01 10 9.9 0.1 7 DAYS >= .10 8 6.2 1.8 6 DAYS >= .50 4 2.3 1.7 3 DAYS >= 1.00 1 1.1 -0.1 0 GREATEST 24 HR. TOTAL 1.25 08/08 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 17 21 -4 0 SINCE 7/1 18 29 -11 2 COOLING TOTAL 106 159 -53 274 SINCE 1/1 468 475 -7 617 ................................................................ WIND (MPH) AVERAGE WIND SPEED 4.7 HIGHEST WIND SPEED/DIRECTION 26/300 DATE 08/09 HIGHEST GUST SPEED/DIRECTION 36/310 DATE 08/09 SKY COVER AVERAGE SKY COVER 0.45 AVERAGE RH (PERCENT) 76 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 4 HEAVY RAIN 4 RAIN 6 LIGHT RAIN 13 FREEZING RAIN 0 LT FREEZING RAIN 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 FOG 18 FOG W/VIS <= 1/4 MILE 4 HAZE 1 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && SIMILAR TO JUNE AND JULY A TROUGH OF LOW PRESSURE CONTINUED TO DOMINATE THE NORTHEAST US THROUGH MUCH OF AUGUST. THIS TROUGH OF LOW PRESSURE CONTINUED THE THEME FOR UNSETTLED WEATHER IN NEW HAMPSHIRE. DURING THE FIRST HALF OF THE MONTH THE NAO REMAINED NEGATIVE WHILE THE PNA REMAINED POSITIVE WITH THESE TELECONNECTIONS FAVORING A TROUGH JUST WEST OF NEW ENGLAND. THE NAO DID TREND TOWARDS NEUTRAL AT TIMES, WHICH ALLOWED THE TROUGH AXIS TO SHIFT NEAR OVERHEAD OF THE CONCORD AREA AND SOMETIMES EAST OF NEW ENGLAND. THIS EASTWARD SHIFT OF THE TROUGH AXIS ALLOWED FOR COOL AND DRY HIGH PRESSURE SYSTEMS TO BUILD INTO THE AREA BRINGING PERIODS OF DRY WEATHER WITH TEMPERATURES TRENDING BELOW NORMAL. TOWARDS THE END OF THE MONTH, TROPICAL ACTIVITY INCREASED IN THE ATLANTIC BASIN WITH TROPICAL STORMS TRACKING OFFSHORE OF THE EAST COAST. A SERIES OF FRONTAL SYSTEMS THAT CROSSED FROM THE WEST HELPED TO PUSH THESE SYSTEM OFFSHORE WHILE AREA BEACHES DID SEE INCREASED SWELLS. THE AVERAGE TEMPERATURE FOR THE MONTH WAS 67.6 DEGREES, WHICH WAS 1.9 DEGREES BELOW NORMAL. THE COOLEST AUGUST ON RECORD WAS IN 1903 WHEN THE AVERAGE TEMPERATURE WAS 61.1 DEGREES. THE WARMEST WAS 73.5 DEGREES IN 2022. A TOTAL OF 4.49 INCHES OF RAIN FELL, WHICH WAS 0.86 INCHES ABOVE NORMAL. THE HEAVIEST RAIN FELL FROM THUNDERSTORMS ON THE 8TH WHEN 1.25 INCHES WAS MEASURED. THE WETTEST AUGUST ON RECORD WAS IN 2018 WHEN 10.67 INCHES OF PRECIPITATION FELL. THE DRIEST WAS 0.06 INCHES IN 1906. NO RECORDS WERE SET OR TIED IN THE MONTH OF AUGUST AT CONCORD. $$ DS