Climatological Report (Monthly)
Issued by NWS
Issued by NWS
000 CXUS51 KGYX 030449 CLMMHT PWMCLMMHT 000 TTAA00 GYX 011103 CLIMATE REPORT NATIONAL WEATHER SERVICE GRAY ME 703 AM EDT FRI SEP 01 2023 ................................... ...THE MANCHESTER CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1885 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) HIGHEST 88 08/13 93 -5 LOWEST 51 08/02 49 2 08/23 AVG. MAXIMUM 80.4 82.4 -2.0 AVG. MINIMUM 60.5 62.1 -1.6 MEAN 70.5 72.2 -1.7 DAYS MAX >= 90 0 4.1 -4.1 DAYS MAX <= 32 0 0.0 0.0 DAYS MIN <= 32 0 0.0 0.0 DAYS MIN <= 0 0 0.0 0.0 PRECIPITATION (INCHES) TOTALS 3.58 3.35 0.23 DAILY AVG. 0.12 0.11 0.01 DAYS >= .01 7 10.3 -3.3 DAYS >= .10 7 6.1 0.9 DAYS >= .50 4 2.1 1.9 DAYS >= 1.00 0 0.7 -0.7 GREATEST 24 HR. TOTAL 1.10 08/24 TO 08/25 SNOWFALL (INCHES) TOTALS 0.0 SINCE 7/1 0.0 DAYS >= TRACE 0 DAYS >= 1.0 0 GREATEST SNOW DEPTH 0 DEGREE DAYS HEATING TOTAL 1 7 -6 0 SINCE 7/1 1 5 -4 0 COOLING TOTAL 178 232 -54 360 SINCE 1/1 660 689 -29 950 .............................................................. WIND (MPH) AVERAGE WIND SPEED 6.1 HIGHEST WIND SPEED/DIRECTION 28/310 DATE 08/09 HIGHEST GUST SPEED/DIRECTION 38/310 DATE 08/09 SKY COVER AVERAGE SKY COVER 0.62 AVERAGE RH (PERCENT) 69 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 4 MIXED PRECIP 0 HEAVY RAIN 6 RAIN 7 LIGHT RAIN 15 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 14 FOG W/VIS <= 1/4 MILE 1 HAZE 5 - 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 MANCHESTER 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 70.5 DEGREES, WHICH WAS 1.7 DEGREES BELOW NORMAL. THE COOLEST AUGUST ON RECORD WAS IN 1929 WHEN THE AVERAGE TEMPERATURE WAS 61.1 DEGREES. THE WARMEST WAS IN 2022 WHEN THE AVERAGE TEMPERATURE WAS 76.5 DEGREES. A TOTAL OF 3.58 INCHES OF PRECIPITATION RECORDED, WHICH WAS 0.23 INCHES ABOVE NORMAL. ON AUGUST 18TH THERE WAS A TIPPING BUCKET ERROR AND PRECIPITATION FOR THE DAY IS MARKED AS MISSING. NEARBY OBSERVATIONS IN THE AREA SHOWED AROUND 0.50 INCHES OF RAIN FELL THAT DAY. THE WETTEST AUGUST ON RECORD WAS IN 2011 WHEN 7.23 INCHES OF PRECIPITATION FELL. THE DRIEST WAS 0.60 INCHES IN 2007. HISTORICAL RECORDS AT MANCHESTER BEGAN IN 1885, BUT WITHIN THIS RECORD THERE REMAIN NUMEROUS YEARS OF UNAVAILABLE DATA. DUE TO THIS, HISTORICAL RECORDS SHOULD BE CONSIDERED INCOMPLETE AS SOME SIGNIFICANT EXTREMES MAY BE MISSING FROM THE DATA. MORE CONSISTENT MODERN RECORDS BEGAN IN 1998 AND CONTINUE TO THE PRESENT. $$ DS