Climatological Report (Seasonal)
Issued by NWS Portland, ME
Issued by NWS Portland, ME
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860 CXUS51 KGYX 031206 CLSPWM PWMCLSPWM 000 TTAA00 GYX 020432 CLIMATE REPORT NATIONAL WEATHER SERVICE GRAY ME 1132 PM EST FRI DEC 01 2023 ................................... ...THE PORTLAND ME CLIMATE SUMMARY FOR THE FALL SEASON, FROM 9/1/2023 TO 11/30/2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1941 TO 2023 (FOR TEMPERATURES) CLIMATE RECORD PERIOD: 1871 TO 2023 (FOR PRECIPITATION) CLIMATE RECORD PERIOD: 1882 TO 2023 (FOR SNOWFALL) WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 95 09/11/1983 09/07/1945 LOW 3 11/24/1989 HIGHEST 88 09/05 86 2 81 09/10 09/11 LOWEST 17 11/21 16 1 18 11/21 AVG. MAXIMUM 60.5 59.7 0.8 60.9 AVG. MINIMUM 43.2 41.6 1.6 42.1 MEAN 51.9 50.6 1.3 51.5 DAYS MAX >= 90 0 0.5 -0.5 0 DAYS MAX <= 32 0 1.1 -1.1 0 DAYS MIN <= 32 25 24.8 0.2 21 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 24.18 2005 MINIMUM 4.88 1915 TOTALS 11.04 13.27 -2.23 17.27 DAILY AVG. 0.12 0.15 -0.03 0.19 DAYS >= .01 24 30.9 -6.9 30 DAYS >= .10 15 18.9 -3.9 18 DAYS >= .50 7 8.1 -1.1 13 DAYS >= 1.00 3 3.6 -0.6 7 GREATEST 24 HR. TOTAL 3.24 09/18 TO 09/19 SNOWFALL (INCHES) RECORDS TOTAL 24.3 1921 TOTALS 0.2 2.5 -2.3 T SINCE 7/1 0.2 2.5 -2.3 T SNOWDEPTH AVG. 0 DAYS >= TRACE 3 1.6 1.4 3 DAYS >= 1.0 0 0.8 -0.8 0 GREATEST SNOW DEPTH 0 24 HR TOTAL 0.2 11/09 DEGREE DAYS HEATING TOTAL 1250 1353 -103 1235 SINCE 7/1 1269 1377 -108 1236 COOLING TOTAL 81 45 36 28 SINCE 1/1 423 446 -23 542 ................................................................ WIND (MPH) AVERAGE WIND SPEED 6.2 HIGHEST WIND SPEED/DIRECTION 36/150 DATE 11/27 HIGHEST GUST SPEED/DIRECTION 48/140 DATE 11/27 SKY COVER AVERAGE SKY COVER 0.52 AVERAGE RH (PERCENT) 76 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 2 HEAVY RAIN 7 RAIN 12 LIGHT RAIN 30 FREEZING RAIN 0 LT FREEZING RAIN 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 3 FOG 40 FOG W/VIS <= 1/4 MILE 7 HAZE 6 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && THE AVERAGE TEMPERATURE FOR THE FALL SEASON WAS 51.9 DEGREES, WHICH WAS 1.3 DEGREES ABOVE NORMAL AND TIED WITH 2016 AS THE 5TH WARMEST FALL ON RECORD. THE WARMEST FALL ON RECORD WAS IN 2017 AND 2011 WHEN THE AVERAGE TEMPERATURE WAS 53.0 DEGREES. THE COOLEST WAS 45.6 DEGREES IN 1976. THE FOLLOWING TABLE LISTS THE WARMEST FALLS ON RECORD AT PORTLAND. WARMEST AVERAGE TEMPERATURE IN FALL (SINCE 1941)... RANK TEMP YEAR 1 53.0 2017 53.0 2011 3 52.3 2021 52.3 2015 5 51.9 2023 <=== 51.9 2016 6 51.7 2020 7 51.5 2022 51.5 2005 51.5 1961 THE FIRST FREEZE OF THIS FALL OCCURRED ON OCTOBER 31ST WHEN THE LOW TEMPERATURE REACHED 31 DEGREES. THIS WAS 16 DAYS LATER THAN THE NORMAL FIRST FREEZE, WHICH OCCURS ON OCTOBER 15TH. A TOTAL OF 11.04 INCHES OF PRECIPITATION FELL, WHICH WAS 2.23 INCHES BELOW NORMAL. THE DRIEST FALL ON RECORD WAS IN 1915 WHEN ONLY 4.88 INCHES FELL. THE WETTEST WAS 24.18 INCHES IN 2005. ONLY 0.2 INCHES OF SNOW WAS MEASURED THIS FALL, WHICH WAS 2.3 INCHES BELOW NORMAL. SNOW IN FALL CAN BE HIT OR MISS. IN 143 YEARS OF RECORDS THERE HAVE BEEN 4 YEARS WITH NO SNOW IN FALL, MOST RECENTLY IN 2006. THE SNOWIEST FALL WAS 24.3 INCHES IN 1921. $$ DS