Climatological Report (Monthly)
Issued by NWS
Issued by NWS
000 CXUS51 KGYX 042326 CLMAUG PWMCLMAUG 000 TTAA00 GYX 020949 CLIMATE REPORT NATIONAL WEATHER SERVICE GRAY ME 548 AM EDT FRI JUN 02 2023 ................................... ...THE AUGUSTA CLIMATE SUMMARY FOR THE MONTH OF MAY 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 94 05/22/1992 LOW 26 05/08/1950 HIGHEST 92 05/28 85 7 92 05/14 LOWEST 36 05/17 34 2 35 05/08 05/18 AVG. MAXIMUM 68.9 65.8 3.1 71.3 AVG. MINIMUM 45.5 44.7 0.8 46.9 MEAN 57.2 55.3 1.9 59.1 DAYS MAX >= 90 1 0.4 0.6 1 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MIN <= 32 0 0.4 -0.4 0 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 10.83 1984 MINIMUM 0.55 1992 TOTALS 4.37 3.27 1.10 1.64 DAILY AVG. 0.14 0.11 0.03 0.05 DAYS >= .01 8 13.1 -5.1 8 DAYS >= .10 6 7.4 -1.4 4 DAYS >= .50 2 2.1 -0.1 1 DAYS >= 1.00 2 0.4 1.6 0 GREATEST 24 HR. TOTAL 4.56 04/30 TO 05/01 DEGREE DAYS HEATING TOTAL 252 313 -61 207 SINCE 7/1 6076 7190 -1114 6244 COOLING TOTAL 17 10 7 35 SINCE 1/1 19 10 9 35 ................................................................ WIND (MPH) AVERAGE WIND SPEED 8.4 HIGHEST WIND SPEED/DIRECTION 31/120 DATE 05/01 HIGHEST GUST SPEED/DIRECTION 49/110 DATE 05/01 SKY COVER AVERAGE SKY COVER 0.28 AVERAGE RH (PERCENT) 55 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 HEAVY RAIN 3 RAIN 5 LIGHT RAIN 9 FREEZING RAIN 0 LT FREEZING RAIN 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 FOG 9 FOG W/VIS <= 1/4 MILE 2 HAZE 0 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && THE COOL, CLOUDY, AND DAMP PATTERN THAT DOMINATED THE SECOND HALF OF APRIL PERSISTED INTO THE FIRST WEEK OF MAY. A SIGNIFICANT RAIN EVENT THAT STARTED ON APRIL 30TH CONTINUED INTO MAY 1ST WHERE THE AUGUSTA AREA RECEIVED 4.69 INCHES OF RAIN WITH UPWARDS OF 5 TO 6 INCHES FALLING ACROSS THE MOUNTAINS AND CENTRAL MAINE LEADING TO SIGNIFICANT FLOODING. THE AUGUSTA AREA WENT ON TO RECORD MEASURABLE PRECIPITATION FOR THE NEXT FOUR DAYS OF THE MONTH WITH TEMPERATURES AVERAGING BELOW NORMAL. THE BLOCKING PATTERN ASSOCIATED WITH THE NEGATIVE PHASE OF THE NAO WAS RESPONSIBLE FOR THIS PROLONGED PERIOD OF DREARY WEATHER, AND THIS PATTERN BROKE DOWN BY THE END OF THE FIRST WEEK OF MAY. A PERIOD OF DRY WEATHER ENSUED, AND WITH THE EXCEPTION OF A COUPLE COOL DAYS AND SEASONABLY COLD NIGHTS, TEMPERATURES AVERAGED ABOVE NORMAL THROUGH THE MIDDLE OF THE MONTH. TOWARDS THE END OF THIS DRY STRETCH OF WEATHER A COLD FRONT CROSSED ON THE 17TH WITH A CANADIAN HIGH PRESSURE SYSTEM BUILDING IN BEHIND THE FRONT. THIS HIGH ALLOWED FOR STRONG RADIATIONAL COOLING WITH THE TEMPERATURE FALLING TO 36 DEGREES ON THE MORNING OF THE 18TH, PRESERVING THE LAST FREEZE DATE OF APRIL 10TH. A COUPLE DAYS LATER A COASTAL LOW PRESSURE SYSTEM MERGED WITH A COLD FRONT APPROACHING FROM THE WEST BRINGING SIGNIFICANT RAINFALL TO THE AUGUSTA AREA WHEN A STORM TOTAL OF 2.02 INCHES FELL ON THE 20TH INTO THE 21ST. COOL WEATHER FOLLOWED THIS HEAVY RAIN EVENT BEFORE A RIDGE OF HIGH PRESSURE BUILT IN OVER THE NORTHEAST RESULTING IN VERY WARM WEATHER TO CLOSE OUT THE MONTH OF MAY. THE AVERAGE TEMPERATURE FOR THE MONTH WAS 57.2 DEGREES, WHICH WAS 1.9 DEGREES ABOVE NORMAL. THE WARMEST MAY ON RECORD WAS IN 2015 WHEN THE AVERAGE TEMPERATURE WAS 59.4 DEGREES. THE COOLEST WAS 48.7 DEGREES IN 1956. A TOTAL OF 4.37 INCHES OF PRECIPITATION FELL IN THE MONTH OF MAY, WHICH WAS 1.10 INCHES ABOVE NORMAL. THE WETTEST MAY ON RECORD WAS IN 1984 WHEN 10.83 INCHES OF PRECIPITATION FELL. THE DRIEST WAS 0.55 INCHES IN 1992. THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN MAY 2023... DATE RECORD PREVIOUS MAY 1 1.69 - GREATEST PRECIPITATION 0.76 IN 2020 MAY 7 56 - WARMEST LOW TEMPERATURE 53 IN 1999 MAY 20 1.61 - GREATEST PRECIPITATION 1.20 IN 1957 MAY 28 92 - WARMEST MAXIMUM TEMPERATURE 88 IN 1988 $$ DS