Climatological Report (Seasonal)
Issued by NWS Portland, ME
Issued by NWS Portland, ME
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286 CXUS51 KGYX 031635 CLSPWM PWMCLMPWM 000 TTAA00 KGYX 021745 CLIMATE REPORT NATIONAL WEATHER SERVICE GRAY ME 1235 PM EDT MON JUN 3 2019 ................................... ...THE PORTLAND ME CLIMATE SUMMARY FOR THE SPRING SEASON, FROM 3/1/2019 TO 5/31/2019... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1941 TO 2019 /FOR TEMPERATURES/ CLIMATE RECORD PERIOD 1871 TO 2019 /FOR PRECIPITATION/ CLIMATE RECORD PERIOD 1882 TO 2019 /FOR SNOWFALL/ WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 94 05/31/1987 LOW -21 03/04/1950 HIGHEST 84 05/26 85 -1 90 05/02 LOWEST 2 03/07 6 -4 8 03/18 AVG. MAXIMUM 51.7 53.0 -1.3 53.0 AVG. MINIMUM 34.7 34.6 0.1 35.8 MEAN 43.2 43.8 -0.6 44.4 DAYS MAX >= 90 0 0.4 -0.4 1 DAYS MAX <= 32 4 4.3 -0.3 2 DAYS MIN <= 32 38 36.8 1.2 42 DAYS MIN <= 0 0 0.4 -0.4 0 PRECIPITATION (INCHES) RECORD MAXIMUM 22.55 1983 MINIMUM 4.23 1965 TOTALS 11.98 12.57 -0.59 9.82 DAILY AVG. 0.13 0.14 -0.01 0.11 DAYS >= .01 43 35.5 7.5 33 DAYS >= .10 27 21.6 5.4 17 DAYS >= .50 10 8.5 1.5 5 DAYS >= 1.00 1 2.8 -1.8 3 GREATEST 24 HR. TOTAL 1.22 04/27 SNOWFALL (INCHES) RECORDS TOTAL 61.5 1906 TOTALS 14.9 15.5 -0.6 33.7 SINCE 7/1 66.0 61.9 4.1 91.9 SNOWDEPTH AVG. 1 DAYS >= TRACE 14 6.1 7.9 23 DAYS >= 1.0 4 3.7 0.3 6 GREATEST SNOW DEPTH 8 03/06 03/04 03/05 24 HR TOTAL 6.2 03/03 TO 03/04 DEGREE_DAYS HEATING TOTAL 1986 1960 26 1894 SINCE 7/1 6978 7001 -23 6598 COOLING TOTAL 3 7 -4 15 SINCE 1/1 3 7 -4 15 ................................................................. WIND (MPH) AVERAGE WIND SPEED 8.1 HIGHEST GUST SPEED/DIRECTION 47/300 DATE 04/16 SKY COVER AVERAGE SKY COVER 0.60 AVERAGE RH (PERCENT) 67 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && WINTER-LIKE CONDITIONS CONTINUED INTO THE FIRST FEW WEEKS OF METEOROLOGICAL SPRING. A SNOWSTORM ON MARCH 3 AND 4 BROUGHT MORE THAN 6 INCHES OF SNOW. COLDER AIR POURED IN BEHIND THIS STORM, THE LAST STRONG ARCTIC AIR MASS OF THE SEASON. PORTLAND SPENT THE NEXT 3 DAYS BELOW FREEZING. GRADUALLY, THOUGH, THE WORST OF THE COLD GAVE WAY TO MORE MILD CONDITIONS. ALTHOUGH MORE LIGHT SNOW FELL IN THE COMING WEEK IT WAS NOT ENOUGH TO STOP THE INEVITABLE SPRING MELT OFF. THE WARM WEATHER AND A FEW RAINY DAYS MELTED THE SNOW BY THE MORNING OF APRIL 1. CONDITIONS TURNED A BIT COOLER IN APRIL WITH FREQUENT RAIN AND SNOW SHOWERS. THE LAST SIGNIFICANT SNOWFALL OF THE SEASON WAS ON APRIL 8 AND 9 WHEN 3.8 INCHES WAS MEASURED. IT DIDN`T LAST LONG, THOUGH, AS WARMER WEATHER SOON FOLLOWED. THE TEMPERATURE WARMED TO 73 DEGREES ON APRIL 13, THE FIRST 70 DEGREE READING OF THE YEAR. THEN THE WEATHER TURNED COOL AND SHOWERY AGAIN WITH RAIN OBSERVED ON 9 OUT OF 10 DAYS FROM APRIL 18TH THROUGH 27TH, INCLUDING MORE THAN 2 INCHES ON THE 26TH AND 27TH. A PATTERN WAS BEGINNING TO EMERGE WHICH FEATURED A BATTLE BETWEEN BUILDING WARMTH OVER THE SOUTHEAST US AND LINGERING COLD OVER CANADA AND THE GULF OF MAINE. WITH THE JET STREAM FREQUENTLY NEARBY, QUICK-MOVING STORM SYSTEMS WOULD BRING FREQUENT SHOWERS. RAIN FELL ON 6 OF THE FIRST 7 DAYS OF MAY. COOLER AIR FROM CANADA MOVED INTO THE AREA DURING THE MIDDLE OF MAY. THE COOLEST DAY WAS MAY 14 WHEN THE TEMPERATURE ONLY MADE IT TO 45 DEGREES FOR A HIGH. SOME WARMER WEATHER FINALLY BEGAN MOVING INTO THE AREA FROM THE SOUTHWEST DURING THE LAST HALF OF MAY. THE WARMEST WAS ON MAY 26 WHEN IT WAS 84 DEGREES. BUT SOON A COLD FRONT BROUGHT A RETURN TO COOL CONDITIONS. OVERALL THE SPRING WAS REMEMBERED FOR BEING CLOUDY AND COOL WITH FREQUENT PRECIPITATION. MEASURABLE PRECIPITATION WAS RECORDED ON 43 DAYS THIS SPRING. THE AVERAGE TEMPERATURE THIS SPRING WAS 43.2 DEGREES WHICH WAS 0.6 DEGREES BELOW NORMAL. THE WARMEST TEMPERATURE WAS 84 DEGREES ON MAY 26. THE COLDEST WAS 2 DEGREES ON MARCH 7. THE COOLEST SPRING ON RECORD WAS IN 1956 WHEN THE AVERAGE TEMPERATURE WAS ONLY 37.9 DEGREES. THE WARMEST WAS 48.9 DEGREES IN 2010. A TOTAL OF 11.98 INCHES OF PRECIPITATION FELL WHICH WAS 0.59 INCHES BELOW NORMAL. THIS MARKED THE 6TH OF THE LAST 7 YEARS WITH BELOW NORMAL SPRING PRECIPITATION. THE HEAVIEST PRECIPITATION CAME ON APRIL 26 AND 27 WHEN 2.07 INCHES OF RAIN FELL. THE DRIEST SPRING ON RECORD WAS IN 1965 WHEN ONLY 4.23 INCHES OF PRECIPITATION WAS RECORDED. THE WETTEST WAS IN 1983 WITH 22.55 INCHES. THERE WAS 14.9 INCHES OF SNOWFALL WHICH WAS 0.6 INCHES BELOW NORMAL. THE HEAVIEST SNOW FELL ON MARCH 3 AND 4 WHEN 6.2 INCHES WAS MEASURED. SNOWFALL IN SPRING CAN BE QUITE VARIABLE, WITH MOST OF IT FALLING IN MARCH. THE SNOWIEST SPRING ON RECORD WAS IN 1906 WHEN 61.5 INCHES FELL. THERE HAVE BEEN TWO YEARS IN WHICH ONLY A TRACE OF SNOW WAS OBSERVED IN SPRING, 1921 AND 1910. SNOWFALL FOR THE 2018-19 SEASON TOTALED 66.0 INCHES WHICH WAS 4.1 INCHES ABOVE NORMAL. THE LAST SEVERAL SEASONS HAVE BEEN SNOWY IN PORTLAND WITH 6 OF THE LAST 7 YEARS REPORTING ABOVE NORMAL SNOW AS WELL AS 9 OF THE LAST 12 YEARS. THE HEAVIEST SNOW THIS SEASON CAME ON NOVEMBER 19 AND 20 WHEN 8.3 INCHES OF SNOW WAS RECORDED. THE SNOWIEST SEASON ON RECORD WAS IN 1970-71 WHEN 141.5 INCHES OF SNOW FELL. THE LEAST SNOWY SEASON WAS IN 1979-80 WHEN ONLY 27.5 INCHES FELL. THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN SPRING 2019... DATE RECORD PREVIOUS MAR 15 39 - WARMEST LOW TEMPERATURE 38 IN 2016 APR 20 52 - WARMEST LOW TEMPERATURE 49 IN 1987 APR 20 6 - SMALLEST TEMPERATURE RANGE 7 IN 1978 MAY 2 3 - SMALLEST TEMPERATURE RANGE 3 IN 2016 (TIED) MAY 14 45 - COOLEST HIGH TEMPERATURE 47 IN 1948 MAY 14 42 - COOLEST AVERAGE TEMPERATURE 44 IN 1948, 1947 $$ KIMBLE