Climatological Report (Monthly)
Issued by NWS Portland, ME

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913 CXUS51 KGYX 031511 CCA CLMPWM PWMCLMPWM 000 TTAA00 KGYX 031420 CLIMATE REPORT NATIONAL WEATHER SERVICE GRAY ME 1109 AM EDT MON APR 3 2017 ................................... ...THE PORTLAND ME CLIMATE SUMMARY FOR THE MONTH OF MARCH 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 88 03/31/1998 LOW -21 03/04/1950 HIGHEST 54 03/08 62 -8 72 03/31 03/02 LOWEST 1 03/12 6 -5 13 03/03 AVG. MAXIMUM 37.0 42.1 -5.1 46.2 AVG. MINIMUM 20.6 24.9 -4.3 29.4 MEAN 28.8 33.5 -4.7 37.8 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 10 3.7 6.3 2 DAYS MIN <= 32 27 23.7 3.3 20 DAYS MIN <= 0 0 0.3 -0.3 0 PRECIPITATION (INCHES) RECORD MAXIMUM 11.24 2010 MINIMUM 0.09 1915 TOTALS 3.50 4.24 -0.74 4.37 DAILY AVG. 0.11 0.14 -0.03 0.14 DAYS >= .01 12 11.7 0.3 13 DAYS >= .10 6 7.5 -1.5 8 DAYS >= .50 2 2.9 -0.9 4 DAYS >= 1.00 1 0.9 0.1 0 GREATEST 24 HR. TOTAL 1.44 03/14 TO 03/15 SNOWFALL (INCHES) RECORDS TOTAL 49.0 1993 TOTALS 21.2 12.7 8.5 7.1 SINCE 7/1 87.4 59.1 28.3 48.1 SNOWDEPTH AVG. 3 DAYS >= TRACE 11 5.1 5.9 DAYS >= 1.0 3 3.1 -0.1 GREATEST SNOW DEPTH 12 03/15 24 HR TOTAL 16.4 03/14 TO 03/15 DEGREE_DAYS HEATING TOTAL 1114 976 138 836 SINCE 7/1 5592 6018 -426 5127 COOLING TOTAL 0 0 0 0 SINCE 1/1 0 0 0 0 ................................................................. WIND (MPH) AVERAGE WIND SPEED 9.4 HIGHEST WIND SPEED/DIRECTION 40/030 DATE 03/14 HIGHEST GUST SPEED/DIRECTION 59/040 DATE 03/14 SKY COVER AVERAGE SKY COVER 0.50 AVERAGE RH (PERCENT) 59 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 HEAVY RAIN 0 RAIN 2 LIGHT RAIN 9 FREEZING RAIN 0 LT FREEZING RAIN 0 HEAVY SNOW 1 SNOW 2 LIGHT SNOW 9 FOG 12 FOG W/VIS <= 1/4 MILE 4 HAZE 3 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && THE PERSISTENT LATE-FEBRUARY WARMTH CONTINUED INTO THE FIRST FEW DAYS OF MARCH AND THE TEMPERATURE ROSE ALL THE WAY TO 54 DEGREES ON MARCH 2. THIS COULD HAVE BEEN A SIGN OF THINGS TO COME, BUT IT WAS NOT TO BE. IN FACT, THAT WAS THE WARMEST TEMPERATURE OF THE ENTIRE MONTH AS COLD AIR MOVED IN THE FOLLOWING DAY. THE REST OF THE MONTH FEATURED FREQUENT COLD AND OCCASIONALLY SNOWY WEATHER AS SEVERAL ROUNDS OF ARCTIC AIR MOVED INTO NEW ENGLAND. FROM MARCH 10 THROUGH 16 PORTLAND ENDURED 7 STRAIGHT DAYS WHERE THE TEMPERATURE FAILED TO RISE ABOVE FREEZING. THIS 7-DAY STRETCH TIED AS THE LONGEST STRETCH OF CONSECUTIVE DAYS AT OR BELOW FREEZING ENTIRELY WITHIN THE MONTH OF MARCH (ALSO HAPPENED MARCH 4 TO 10, 1996). ALTHOUGH THERE WERE A FEW LIGHT SNOWFALLS DURING THIS COLD PERIOD IN MARCH, BY FAR THE BIGGEST WAS ON MARCH 14 WHEN AN INTENSE NOR`EASTER BROUGHT BLIZZARD CONDITIONS ALONG WITH MORE THAN 16 INCHES OF SNOWFALL. THE SNOW WAS ACCOMPANIED BY WINDS GUSTING AS HIGH AS 59 MPH WHICH CAUSED SIGNIFICANT BLOWING AND DRIFTING. ALTHOUGH THE WINTER SNOW DEPTH HAD DIMINISHED DOWN TO JUST A TRACE BEFORE THIS BLIZZARD, THE AMOUNT OF SNOW FROM THIS STORM WAS ENOUGH TO LAST ON THE GROUND RIGHT THROUGH THE END OF THE MONTH. THE BITTER COLD GRADUALLY BEGAN TO FADE TOWARD THE END OF THE MONTH WITH TEMPERATURES WARMING BACK UP CLOSER TO NORMAL. BUT ONE MORE SNOWSTORM ARRIVED JUST AS THE MONTH WAS ENDING. THE AVERAGE TEMPERATURE FOR THE MONTH WAS 28.8 DEGREES WHICH WAS 4.7 DEGREES BELOW NORMAL AND THE 8TH COLDEST MARCH ON RECORD. THE WARMEST MARCH WAS IN 2012 WHEN THE AVERAGE TEMPERATURE WAS 41.1 DEGREES. THE COLDEST WAS IN 1956 AT ONLY 25.6 DEGREES. SINCE 2010, 5 OUT OF THE 8 MARCHES HAVE REACHED THE TOP 10 EITHER WARMEST OR COLDEST. THE FOLLOWING TABLES LIST THE WARMEST AND COLDEST MARCHES AT PORTLAND. TOP TEN WARMEST AND COLDEST MARCHES AT PORTLAND (SINCE 1940)... WARMEST | COLDEST RANK TEMP YEAR | TEMP YEAR 1 41.1 2012 | 25.6 1956 2 39.9 2010 | 26.3 1950 3 39.5 1946 | 26.4 1967 4 38.6 1945 | 27.0 2014 5 37.8 2016 | 27.3 1960 6 37.7 1973 | 27.3 1941 7 37.6 2000 | 28.1 1984 8 37.0 1991 | 28.8 2017 <=== 9 36.7 1998 | 28.9 1972 10 36.2 1958 | 29.1 1944 THERE WERE 10 DAYS IN MARCH THAT DID NOT SEE THE TEMPERATURE RISE ABOVE FREEZING. THIS TIES THE RECORD FOR MOST SUBFREEZING DAYS IN MARCH LAST SET IN 2014. THE FOLLOWING TABLE LISTS THE MARCHES WITH THE MOST DAYS THAT DID NOT RISE ABOVE FREEZING. MOST DAYS IN MARCH WITH MAX <= 32 (SINCE 1940)... RANK DAYS YEAR 1 10 2017 <=== 10 2014 10 1984 10 1972 10 1967 10 1960 7 9 1956 9 1948 9 1944 10 8 1996 AND SEVERAL OTHERS A TOTAL OF 3.50 INCHES OF PRECIPITATION FELL WHICH WAS 0.74 INCHES BELOW NORMAL. THE HEAVIEST PRECIPITATION FELL ON THE 14TH WHEN A BLIZZARD BROUGHT 1.43 INCHES OF LIQUID EQUIVALENT SNOWFALL. THE DRIEST MARCH WAS IN 1915 WHEN ONLY 0.09 INCHES FELL. THE WETTEST WAS IN 2010 WITH 11.24 INCHES. THERE WAS 21.2 INCHES OF SNOWFALL WHICH WAS 8.5 INCHES ABOVE NORMAL AND THE SNOWIEST MARCH SINCE 2005. THE HEAVIEST SNOW FELL DURING THE BLIZZARD ON THE 14TH WHICH BROUGHT MORE THAN 16 INCHES OF SNOWFALL. THE REST OF THE MONTH ONLY SAW LIGHT SNOWFALL. THE SNOWIEST MARCH ON RECORD WAS IN 1993 WHEN 49.0 INCHES OF SNOW FELL. IN MARCH 1946 NO SNOW WAS OBSERVED. IN ADDITION THERE HAVE BEEN 3 MARCHES WHICH ONLY OBSERVED A TRACE OF SNOWFALL, MOST RECENTLY IN 1979. THE FOLLOWING RECORDS WERE SET OR TIED IN MARCH 2017... DATE RECORD PREVIOUS 1 40 - WARMEST LOW TEMPERATURE 37 IN 1999 11 17 - COLDEST HIGH TEMPERATURE 22 IN 1950 11 10 - COLDEST AVERAGE TEMPERATURE 12 IN 1960 14 16.3 - MOST SNOWFALL 10.6 IN 1961 12 1 - COLDEST LOW TEMPERATURE 3 IN 1984 AND 1941 27 4 - SMALLEST TEMPERATURE RANGE 5 IN 1981 AND 3 OTHERS 28 4 - SMALLEST TEMPERATURE RANGE 4 IN 2005 /TIED/ $$ KIMBLE

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