Climatological Report (Monthly)
Issued by NWS Portland, ME

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000 CXUS51 KGYX 012105 CCA CLMCON PWMCLMCON 000 TTAA00 KGYX 011703 CLIMATE REPORT NATIONAL WEATHER SERVICE GRAY ME 458 PM EDT MON MAY 1 2017 ................................... ...THE CONCORD NH CLIMATE SUMMARY FOR THE MONTH OF APRIL 2017... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1868 TO 2017 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 95 04/19/1976 LOW 4 04/05/2016 HIGHEST 87 04/16 82 5 80 04/21 04/11 LOWEST 23 04/03 20 3 4 04/05 AVG. MAXIMUM 61.2 57.4 3.8 58.1 AVG. MINIMUM 37.6 32.7 4.9 29.6 MEAN 49.4 45.1 4.3 43.8 DAYS MAX >= 90 0 0.2 -0.2 0 DAYS MAX <= 32 0 0.2 -0.2 1 DAYS MIN <= 32 9 15.0 -6.0 19 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 7.74 1904 MINIMUM 0.42 1941 TOTALS 4.23 3.41 0.82 1.65 DAILY AVG. 0.14 0.11 0.03 0.05 DAYS >= .01 11 11.8 -0.8 9 DAYS >= .10 8 7.1 0.9 6 DAYS >= .50 5 2.1 2.9 1 DAYS >= 1.00 0 0.7 -0.7 0 GREATEST 24 HR. TOTAL 0.86 04/06 SNOWFALL (INCHES) RECORDS TOTAL 35.0 1874 TOTALS 6.9 2.8 4.1 2.7 SINCE 7/1 86.3 61.4 24.9 29.7 SNOWDEPTH AVG. 2 DAYS >= TRACE 1 1.2 -0.2 3 DAYS >= 1.0 1 0.6 0.4 1 GREATEST SNOW DEPTH 16 04/01 24 HR TOTAL 6.9 04/01 DEGREE_DAYS HEATING TOTAL 470 600 -130 626 SINCE 7/1 6072 6847 -775 5757 COOLING TOTAL 8 2 6 0 SINCE 1/1 8 2 6 0 ................................................................. WIND (MPH) AVERAGE WIND SPEED 6.4 HIGHEST WIND SPEED/DIRECTION 29/300 DATE 04/08 HIGHEST GUST SPEED/DIRECTION 41/320 DATE 04/08 SKY COVER AVERAGE SKY COVER 0.50 AVERAGE RH (PERCENT) 67 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 1 HEAVY RAIN 3 RAIN 6 LIGHT RAIN 13 FREEZING RAIN 0 LT FREEZING RAIN 0 HEAVY SNOW 0 SNOW 1 LIGHT SNOW 2 FOG 14 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 A CONSISTENTLY COOL MARCH, THE COOL WEATHER CONTINUED INTO THE FIRST PART OF APRIL. A SIGNIFICANT SNOWSTORM BROUGHT MORE THAN 12 INCHES OF SNOW FROM MARCH 31 INTO THE DAY ON APRIL 1. RATHER THAN BEING A SIGN OF A COLD APRIL TO COME, IT WAS JUST NATURE`S IDEA OF A PRANK OR THE LAST GASPS OF WINTER. AFTER A FEW COOL, WET DAYS THE WEATHER PATTERN BEGAN TO SHIFT AND WARMER WEATHER ARRIVED. CONCORD SAW TWO STRAIGHT DAYS IN THE 80S ON APRIL 10 AND 11, ENOUGH TO MELT THE LAST OF THE WINTER SNOW COVER. A COLD FRONT BROUGHT THE TEMPERATURE BACK DOWN TO AROUND NORMAL FOR A FEW DAYS, BUT THE WARMTH RETURNED ON EASTER SUNDAY, APRIL 16, WITH A HIGH TEMPERATURE OF 87 DEGREES. THE REST OF THE MONTH WAS A BATTLE BETWEEN BUILDING WARMTH AND PERIODIC ONSHORE BREEZES FROM THE FRIGID GULF OF MAINE. WHEN THE WIND CAME FROM THE EAST THE TEMPERATURE OFTEN STRUGGLED TO REACH 50. WHEN THE WIND CAME FROM THE SOUTHWEST IT WOULD HIT 70 OR EVEN 80 DEGREES. THE AVERAGE TEMPERATURE FOR THE MONTH WAS 49.4 DEGREES WHICH WAS 4.3 DEGREES ABOVE NORMAL AND TIED FOR THE 4TH WARMEST APRIL ON RECORD. THE WARMEST APRIL WAS IN 1941 WHEN THE AVERAGE TEMPERATURE WAS 51.4 DEGREES. THE COLDEST WAS IN 1874 WHEN IT WAS ONLY 37.0 DEGREES. THE FOLLOWING TABLE LISTS THE WARMEST APRILS ON RECORD AT CONCORD. WARMEST APRIL AVERAGE TEMPERATURE (SINCE 1868)... RANK TEMP YEAR 1 51.4 1941 2 50.8 1878 3 50.4 1886 4 49.4 2017 <=== 49.4 1921 6 49.1 1945 7 48.7 2010 8 48.6 1889 9 48.5 1880 10 48.4 1915 THERE WERE 9 DAYS THAT TOPPED 70 DEGREES WHILE THE AVERAGE APRIL WOULD TYPICALLY ONLY SEE 6. THERE WERE 5 DAYS THAT TOPPED 80 DEGREES, TIED FOR THE MOST ON RECORD. AN AVERAGE APRIL WOULD SEE ONLY 1 DAY HIT 80 DEGREES. THE FOLLOWING TABLES LIST THE APRILS WITH THE MOST 70 AND 80 DEGREE DAYS RESPECTIVELY. MOST DAYS REACHING 70 OR 80 DEGREES (SINCE 1868)... 70 OR HIGHER | 80 OR HIGHER RANK DAYS YEAR | DAYS YEAR 1 12 1870 | 5 2017 <=== 2 11 1941 | 5 1976 3 10 1991 | 5 1941 4 10 1957 | 5 1886 5 9 2017 <=== | 5 1870 6 9 1938 | 4 1942 7 9 1886 | 4 1885 8 8 2010 AND 11 OTHERS | 3 2012 AND 16 OTHERS A TOTAL OF 4.23 INCHES OF PRECIPITATION FELL WHICH WAS 0.82 INCHES ABOVE NORMAL AND THE WETTEST APRIL SINCE 2011. THE HEAVIEST PRECIPITATION FELL NEAR THE START OF THE MONTH WHEN MORE THAN 0.8 INCHES FELL ON THE 4TH AND THE 6TH. THE WETTEST APRIL ON RECORD WAS IN 1904 WHEN 7.44 INCHES WAS MEASURED. THE DRIEST WAS IN 1941 WHEN ONLY 0.42 INCHES FELL. THERE WAS 6.9 INCHES OF SNOW WHICH WAS 4.1 INCHES ABOVE NORMAL AND THE SNOWIEST APRIL SINCE 2007. ALL OF THIS SNOW FELL ON APRIL 1 AS PART OF A SNOWSTORM WHICH BROUGHT A TOTAL OF MORE THAN 12 INCHES OF SNOW BEGINNING ON MARCH 31. SNOW IS TYPICALLY INCONSISTENT IN THE MONTH OF APRIL. THE SNOWIEST APRIL ON RECORD WAS IN 1874 WHEN 35.0 INCHES OF SNOW FELL. MEASURABLE SNOW HAS BEEN OBSERVED IN 69 PERCENT OF ALL APRILS. AN ADDITIONAL 24 PERCENT OF APRILS HAVE OBSERVED ONLY A TRACE OF SNOWFALL, MOST RECENTLY IN 2010. THERE HAVE ONLY BEEN 10 YEARS, OR 7 PERCENT, WHICH DID NOT OBSERVE ANY SNOWFALL IN APRIL INCLUDING MOST RECENTLY IN 2012. THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN APRIL 2017... DATE RECORD PREVIOUS 1 6.9 - GREATEST SNOWFALL 5.7 IN 1993 11 87 - WARMEST HIGH TEMPERATURE 84 IN 1945 $$ KIMBLE

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