Climatological Report (Monthly)
Issued by NWS Portland, ME

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000 CXUS51 KGYX 041028 CLMPWM PWMCLMPWM 000 TTAA00 KGYX 040957 CLIMATE REPORT NATIONAL WEATHER SERVICE GRAY ME 528 AM EST MON DEC 4 2017 ................................... ...THE PORTLAND ME CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 2017... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1941 TO 2017 /FOR TEMPERATURES/ CLIMATE RECORD PERIOD 1871 TO 2017 /FOR PRECIPITATION/ CLIMATE RECORD PERIOD 1882 TO 2017 /FOR SNOWFALL/ WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 74 11/01/2003 11/04/1987 11/01/1974 LOW 3 11/24/1989 HIGHEST 70 11/03 65 5 63 11/18 LOWEST 17 11/28 16 1 23 11/29 11/11 AVG. MAXIMUM 48.2 48.0 0.2 50.6 AVG. MINIMUM 28.5 30.9 -2.4 32.3 MEAN 38.4 39.4 -1.0 41.5 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 0 0.8 -0.8 0 DAYS MIN <= 32 23 17.7 5.3 16 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 13.50 1983 MINIMUM 0.56 1939 TOTALS 2.10 4.93 -2.83 4.06 DAILY AVG. 0.07 0.16 -0.09 0.14 DAYS >= .01 8 11.2 -3.2 11 DAYS >= .10 5 7.4 -2.4 7 DAYS >= .50 1 3.1 -2.1 3 DAYS >= 1.00 0 1.3 -1.3 2 GREATEST 24 HR. TOTAL 0.55 11/16 SNOWFALL (INCHES) RECORDS TOTAL 24.3 1921 TOTALS 0.1 1.9 -1.8 0.5 SINCE 7/1 0.1 1.9 -1.8 0.5 SNOWDEPTH AVG. 0 DAYS >= TRACE 2 1.5 0.5 DAYS >= 1.0 0 0.7 -0.7 GREATEST SNOW DEPTH T 11/14 24 HR TOTAL 0.1 11/13 DEGREE_DAYS HEATING TOTAL 793 767 26 696 SINCE 7/1 1165 1491 -326 1252 COOLING TOTAL 0 0 0 0 SINCE 1/1 433 359 74 553 ................................................................. WIND (MPH) AVERAGE WIND SPEED 7.8 HIGHEST WIND SPEED/DIRECTION 31/270 DATE 11/10 HIGHEST GUST SPEED/DIRECTION 43/280 DATE 11/10 SKY COVER AVERAGE SKY COVER 0.50 AVERAGE RH (PERCENT) 67 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 HEAVY RAIN 1 RAIN 6 LIGHT RAIN 12 FREEZING RAIN 0 LT FREEZING RAIN 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 1 FOG 10 FOG W/VIS <= 1/4 MILE 0 HAZE 0 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && AFTER ITS WARMEST OCTOBER ON RECORD, PORTLAND SAW A SHIFT IN THE WEATHER PATTERN IN THE MONTH OF NOVEMBER. THE FIRST WEEK OF THE MONTH REMAINED UNSEASONABLY WARM. THE HIGH TEMPERATURE OF 70 DEGREES ON NOVEMBER 3 WAS THE WARMEST TEMPERATURE IN THE MONTH. THINGS BEGAN TO CHANGE WHEN A COLD FRONT ON THE 6TH BROUGHT COOLER AIR INTO THE AREA. ALTHOUGH TEMPERATURES DROPPED TO A FEW DEGREES BELOW NORMAL, IT WAS JUST A TASTE OF WHAT WAS TO COME. ANOTHER, STRONGER COLD FRONT BROUGHT MUCH COLDER AIR STRAIGHT OUT OF THE ARCTIC A FEW DAYS LATER, WITH THE TEMPERATURE DROPPING TO 17 DEGREES ON THE 11TH. ALTHOUGH THE BRUTAL COLD ONLY LASTED A FEW DAYS, A SERIES OF COLD FRONTS KEPT TEMPERATURES BELOW NORMAL FOR THE REST OF THE MONTH WITH ONLY A FEW BRIEF EXCEPTIONS. THE FIRST MEASURABLE SNOW OF THE SEASON WAS OBSERVED ON THE 13TH WHEN 0.1 INCHES FELL. THE AVERAGE TEMPERATURE FOR THE MONTH WAS 38.4 DEGREES WHICH WAS 1.0 DEGREES BELOW NORMAL AND THE COLDEST NOVEMBER SINCE 2013. THE COLD WAS MOST NOTICEABLE IN LOW TEMPERATURES WHICH AVERAGED 28.5 DEGREES, THE COLDEST SINCE 1996. THE COLDEST NOVEMBER ON RECORD WAS IN 1967 WHEN THE AVERAGE TEMPERATURE WAS 34.7 DEGREES. THE WARMEST WAS 44.7 DEGREES IN 2011. A TOTAL OF 2.10 INCHES OF PRECIPITATION FELL WHICH WAS 2.83 INCHES BELOW NORMAL AND THE DRIEST NOVEMBER SINCE 2012. THE HEAVIEST PRECIPITATION WAS ON THE 16TH WHEN 0.55 INCHES WAS MEASURED. THE DRIEST NOVEMBER ON RECORD WAS IN 1939 WHEN ONLY 0.56 INCHES FELL. THE WETTEST WAS IN 1983 WHEN 13.50 INCHES FELL. THERE WAS 0.1 INCHES OF SNOWFALL WHICH WAS 1.8 INCHES BELOW NORMAL. SNOWFALL IN NOVEMBER IS OFTEN INCONSISTENT. OF THE 137 YEARS OF SNOWFALL RECORDS AT PORTLAND, THERE HAVE BEEN 6 YEARS IN WHICH NO SNOW FELL IN NOVEMBER, MOST RECENTLY IN 2006. THERE HAVE BEEN AN ADDITIONAL 35 YEARS IN WHICH ONLY A TRACE OF SNOW WAS OBSERVED, MOST RECENTLY IN 2015. IN ROUGHLY 30 PERCENT OF YEARS MEASURABLE SNOWFALL IS NOT SEEN IN NOVEMBER. THE SNOWIEST NOVEMBER WAS IN 1921 WHEN 24.3 INCHES FELL. NO DAILY RECORDS WERE SET OR TIED IN NOVEMBER 2017. $$ KIMBLE

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