Climatological Report (Monthly)
Issued by NWS Portland, ME

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000 CXUS51 KGYX 021647 CLMPWM PWMCLMPWM 000 TTAA00 KGYX 021522 CLIMATE REPORT NATIONAL WEATHER SERVICE GRAY ME 1247 PM EDT THU OCT 2 2014 ................................... ...THE PORTLAND ME CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2014... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1941 TO 2014 /FOR TEMPERATURES/ CLIMATE RECORD PERIOD 1871 TO 2014 /FOR PRECIPITATION/ CLIMATE RECORD PERIOD 1882 TO 2014 /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 23 09/30/1941 HIGHEST 87 09/06 86 1 93 09/11 LOWEST 36 09/20 37 -1 38 09/24 09/19 AVG. MAXIMUM 70.4 70.0 0.4 70.3 AVG. MINIMUM 49.8 50.3 -0.5 49.2 MEAN 60.1 60.1 0.0 59.8 DAYS MAX >= 90 0 0.3 -0.3 1 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MIN <= 32 0 0.2 -0.2 0 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 10.84 2008 MINIMUM 0.30 1948 TOTALS 0.87 3.69 -2.82 6.72 DAILY AVG. 0.03 0.12 -0.09 0.22 DAYS >= .01 8 9.2 -1.2 11 DAYS >= .10 2 5.6 -3.6 7 DAYS >= .50 0 2.3 -2.3 3 DAYS >= 1.00 0 1.1 -1.1 3 GREATEST 24 HR. TOTAL 0.34 09/21 TO 09/22 SNOWFALL (INCHES) RECORDS TOTAL T 1992 TOTALS 0.0 0.0 0.0 0.0 SINCE 7/1 0.0 0.0 0.0 SNOWDEPTH AVG. 0 DAYS >= TRACE 0 0.0 0.0 DAYS >= 1.0 0 0.0 0.0 GREATEST SNOW DEPTH 0 24 HR TOTAL 0.0 STORM TOTAL 0.0 (MM/DD(HH)) DEGREE_DAYS HEATING TOTAL 186 176 10 186 SINCE 7/1 210 221 -11 204 COOLING TOTAL 45 30 15 37 SINCE 1/1 343 358 -15 454 ................................................................. WIND (MPH) AVERAGE WIND SPEED 5.8 HIGHEST WIND SPEED/DIRECTION 26/290 DATE 09/22 HIGHEST GUST SPEED/DIRECTION 33/260 DATE 09/22 SKY COVER AVERAGE SKY COVER 0.40 AVERAGE RH (PERCENT) 75 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 HEAVY RAIN 1 RAIN 3 LIGHT RAIN 8 FREEZING RAIN 0 LT FREEZING RAIN 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 FOG 19 FOG W/VIS <= 1/4 MILE 5 HAZE 3 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && AFTER THE SECOND WETTEST AUGUST ON RECORD... PORTLAND EXPERIENCED A VERY DRY SEPTEMBER. THE WARM SUMMER-LIKE WEATHER THAT FINALLY ARRIVED AT THE END OF AUGUST CONTINUED INTO THE FIRST PART OF SEPTEMBER. THE SECOND WARMEST DAY OF THE YEAR OCCURRED ON SEPTEMBER 6 WHEN THE TEMPERATURE ROSE TO 87 DEGREES. SOON AFTER THERE WAS A RETURN TO COOLER WEATHER. THE MIDDLE TWO WEEKS OF THE MONTH WERE CONSISTENTLY COOL...BUT WARMER AIR WOULD ARRIVE ONCE AGAIN AT THE END OF THE MONTH... HELPING TO BRING THE AVERAGE TEMPERATURE FOR THE MONTH BACK UP TO NORMAL. THE AVERAGE TEMPERATURE FOR THE MONTH WAS 60.1 DEGREES WHICH WAS RIGHT AT THE NORMAL FOR THE MONTH OF SEPTEMBER. THE WARMEST SEPTEMBER ON RECORD WAS 1961 WITH AN AVERAGE TEMPERATURE OF 64.1 DEGREES. THE COOLEST WAS 1950 WITH AN AVERAGE OF ONLY 54.5 DEGREES. AS SEPTEMBER ENDED PORTLAND HAD STILL NOT REACHED 90 DEGREES IN 2014. THIS IS THE FIRST TIME THIS HAS HAPPENED SINCE 2008. NORMALLY PORTLAND SEES 4.6 DAYS PER YEAR AT 90 OR ABOVE... INCLUDING 0.3 DAYS IN SEPTEMBER. BELOW IS A LIST OF THE COOLEST YEARLY MAXIMUM TEMPERATURES AT PORTLAND. COOLEST YEARLY MAXIMUM TEMPERATURES RANK TEMP YEAR 1 86 1996 2 87 1972 3 88 2014 <=== 88 2008 88 1986 88 1974 88 1962 7 90 2000 90 1992 A TOTAL OF 0.87 INCHES OF RAIN FELL IN SEPTEMBER. THIS WAS LESS THAN A QUARTER OF THE NORMAL PRECIPITATION FOR THE MONTH OF 3.69 INCHES. ALTHOUGH THIS WAS ONLY THE 12TH DRIEST SEPTEMBER ON RECORD... IT WAS ALSO THE DRIEST SINCE 1984 WHEN 0.84 INCHES WAS RECORDED. THE WETTEST SEPTEMBER WAS 2008 WHEN 10.84 INCHES OF RAIN FELL. THE DRIEST WAS 1948 WHEN ONLY 0.30 INCHES FELL. THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN SEPTEMBER 2014... DATE RECORD PREVIOUS 6 76 - WARMEST AVERAGE TEMPERATURE 76 IN 1983 /TIED/ 27 84 - WARMEST MAXIMUM TEMPERATURE 80 IN 1948 27 67 - WARMEST AVERAGE TEMPERATURE 67 IN 2007 AND OTHERS /TIED/ $$ KIMBLE

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