Climatological Report (Monthly)
Issued by NWS
Issued by NWS
000 CXUS51 KGYX 011912 CLMAUG PWMCLMAUG 000 TTAA00 GYX 011821 CLIMATE REPORT NATIONAL WEATHER SERVICE GRAY ME 221 PM EDT SUN OCT 01 2023 ................................... ...THE AUGUSTA CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1948 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 96 09/09/2002 LOW 28 09/29/1980 09/28/1965 HIGHEST 90 09/05 85 5 84 09/10 09/07 09/12 LOWEST 45 09/28 38 7 37 09/30 AVG. MAXIMUM 74.5 70.9 3.6 70.9 AVG. MINIMUM 56.7 51.0 5.7 52.5 MEAN 65.6 61.0 4.6 61.7 DAYS MAX >= 90 2 0.5 1.5 0 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MIN <= 32 0 0.1 -0.1 0 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 11.29 1999 MINIMUM 0.59 2014 TOTALS 2.96 3.90 -0.94 3.88 DAILY AVG. 0.10 0.13 -0.03 0.13 DAYS >= .01 9 10.2 -1.2 9 DAYS >= .10 5 6.2 -1.2 5 DAYS >= .50 3 2.5 0.5 2 DAYS >= 1.00 0 1.1 -1.1 2 GREATEST 24 HR. TOTAL 1.48 09/18 TO 09/19 DEGREE DAYS HEATING TOTAL 74 160 -86 136 SINCE 7/1 81 193 -112 137 COOLING TOTAL 100 38 62 45 SINCE 1/1 575 425 150 655 ................................................................ WIND (MPH) AVERAGE WIND SPEED 5.0 HIGHEST WIND SPEED/DIRECTION 35/330 DATE 09/16 HIGHEST GUST SPEED/DIRECTION 52/330 DATE 09/16 SKY COVER AVERAGE SKY COVER 0.37 AVERAGE RH (PERCENT) 76 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 3 HEAVY RAIN 3 RAIN 5 LIGHT RAIN 8 FREEZING RAIN 0 LT FREEZING RAIN 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 FOG 21 FOG W/VIS <= 1/4 MILE 10 HAZE 3 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$ AFTER A WET SUMMER IN THE AUGUSTA AREA, A BROAD AREA OF HIGH PRESSURE BUILT INTO THE NORTHEAST DURING THE FIRST WEEK OF SEPTEMBER. THIS HIGH PRESSURE BROUGHT THE DRIEST STRETCH OF WEATHER THE AUGUSTA AREA HAD SEEN SINCE THE END OF MAY. ALONG WITH DRY WEATHER, TEMPERATURES CLIMBED WELL ABOVE NORMAL DURING THE FIRST WEEK OF SEPTEMBER, HITTING 90 TWICE, AND BREAKING A DAILY RECORD, ON THE 5TH AND 7TH. IT WAS ALSO DURING THIS TIME THAT TROPICAL ACTIVITY WAS INCREASING IN THE ATLANTIC BASIN. SOME FRONTAL SYSTEMS BROUGHT A RETURN TO WET WEATHER DURING THE SECOND WEEK OF SEPTEMBER BEFORE ATTENTION TURNED TO HURRICANE LEE THAT WAS TRACKING NORTHWARD THROUGH THE WESTERN ATLANTIC. LEE MOVED INTO THE EASTERN GULF OF MAINE ON THE 15TH AS A CATEGORY 1 HURRICANE AND TRANSITIONED TO A POST TROPICAL SYSTEM ON THE 16TH AS IT TRACKED NORTHEASTWARD THROUGH THE BAY OF FUNDY. THIS SYSTEM BROUGHT LITTLE IN THE WAY OF PRECIPITATION TO THE AUGUSTA AREA BUT DID BRING A PEAK WIND GUST OF 52 MPH ON THE 16TH. THE MORE SIGNIFICANT RAIN EVENT OF THE MONTH OCCURRED ON THE 18TH INTO THE 19TH WHEN LOW PRESSURE TRACKED ACROSS CAPE COD INTO THE GULF OF MAINE BRINGING 1.48 INCHES OF RAIN. HIGH PRESSURE BUILT INTO THE NORTHEAST DURING THE THIRD WEEK OF SEPTEMBER AND DOMINATED THE WEATHER PATTERN THROUGH THE END OF THE MONTH. THE AVERAGE TEMPERATURE FOR THE MONTH WAS 65.6, WHICH WAS 4.6 DEGREES ABOVE NORMAL AND THE THIRD WARMEST SEPTEMBER ON RECORD. THE WARMEST WAS IN 1999 WHEN THE AVERAGE TEMPERATURE WAS 66.3 DEGREES. THE COOLEST WAS 54.5 DEGREES IN 1956. THE FOLLOWING TABLE LISTS THE WARMEST SEPTEMBERS ON RECORD AT AUGUSTA. WARMEST AVERAGE TEMPERATURE IN SEPTEMBER (SINCE 1948)... RANK TEMP YEAR 1 66.3 1999 2 65.8 1961 3 65.6 2023 <=== 4 65.1 2015 5 64.9 2017 6 64.8 1983 7 64.2 2021 8 63.7 2016 9 63.6 1971 10 63.1 2002 A TOTAL OF 2.96 INCHES OF PRECIPITATION FELL, WHICH WAS 0.94 INCHES BELOW NORMAL. THE HEAVIEST PRECIPITATION OCCURRED ON THE 18TH AND 19TH WHEN 1.48 INCHES OF RAIN FELL. THE DRIEST SEPTEMBER ON RECORD WAS IN 2014 WHEN ONLY 0.59 INCHES OF PRECIPITATION FELL. THE WETTEST WAS 11.29 INCHES IN 1999. THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN SEPTEMBER 2023... DATE RECORD PREVIOUS SEP 5 90 - HIGHEST MAX TEMPERATURE 88 IN 1971 AND 1961 SEP 6 69 - WARMEST LOW TEMPERATURE 68 IN 1983 AND 1953 SEP 7 90 - HIGHEST MAX TEMPERATURE 90 IN 2007 $$ DS/SB