Climatological Report (Monthly)
Issued by NWS Portland, ME

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000 CXUS51 KGYX 022025 CLMCON PWMCLMCON 000 TTAA00 KGYX 021512 CLIMATE REPORT NATIONAL WEATHER SERVICE GRAY ME 425 PM EDT FRI SEP 2 2016 ................................... ...THE CONCORD NH CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2016... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1868 TO 2016 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 101 08/02/1975 LOW 29 08/31/1965 HIGHEST 99 08/12 92 7 94 08/18 LOWEST 46 08/23 42 4 49 08/07 AVG. MAXIMUM 86.9 80.9 6.0 84.2 AVG. MINIMUM 58.8 56.1 2.7 57.6 MEAN 72.8 68.5 4.3 70.9 DAYS MAX >= 90 9 2.7 6.3 4 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MIN <= 32 0 0.0 0.0 0 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 9.00 1892 MINIMUM 0.06 1996 TOTALS 1.89 3.18 -1.29 5.56 DAILY AVG. 0.06 0.10 -0.04 0.19 DAYS >= .01 9 9.8 -0.8 7 DAYS >= .10 7 6.2 0.8 5 DAYS >= .50 1 2.1 -1.1 3 DAYS >= 1.00 0 0.8 -0.8 2 GREATEST 24 HR. TOTAL 0.80 08/21 TO 08/22 SNOWFALL (INCHES) RECORDS TOTAL 0.0 TOTALS 0.0 0.0 0.0 0.0 SINCE 7/1 0.0 0.0 0.0 0.0 SNOWDEPTH AVG. 0 DAYS >= TRACE 0 0.0 0.0 0 DAYS >= 1.0 0 0.0 0.0 0 GREATEST SNOW DEPTH 0 24 HR TOTAL 0.0 DEGREE_DAYS HEATING TOTAL 1 31 -30 0 SINCE 7/1 12 48 -36 8 COOLING TOTAL 252 139 113 177 SINCE 1/1 624 413 211 502 ................................................................. WIND (MPH) AVERAGE WIND SPEED 4.8 HIGHEST WIND SPEED/DIRECTION 31/320 DATE 08/17 HIGHEST GUST SPEED/DIRECTION 45/290 DATE 08/17 SKY COVER AVERAGE SKY COVER 0.30 AVERAGE RH (PERCENT) 65 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 3 HEAVY RAIN 3 RAIN 6 LIGHT RAIN 12 FREEZING RAIN 0 LT FREEZING RAIN 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 FOG 13 FOG W/VIS <= 1/4 MILE 4 HAZE 1 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && THE WARM WEATHER THAT BEGAN TRENDING AT THE END OF JULY CONTINUED THROUGH MUCH OF AUGUST. IN JUST THE FIRST TWO WEEKS OF AUGUST THERE WERE 6 DAYS THAT SAW THE TEMPERATURE RISE ABOVE 90 DEGREES. THE HEAT PEAKED IN THE MIDDLE OF AUGUST WITH THE HOTTEST TEMPERATURE ON AUGUST 12 WHEN THE TEMPERATURE SOARED TO 99 DEGREES, THE HOTTEST AUGUST TEMPERATURE IN MORE THAN 40 YEARS. ALTHOUGH THE HEAT WAS NOT AS INTENSE, ABOVE NORMAL TEMPERATURES PERSISTED THROUGH THE END OF THE MONTH WITH ONLY A FEW DAYS OF MUCH NEEDED RAINFALL. THE AVERAGE TEMPERATURE FOR THE MONTH WAS 72.8 DEGREES WHICH WAS 4.3 DEGREES ABOVE NORMAL AND TIED FOR THE SECOND WARMEST AUGUST ON RECORD. THE WARMEST AUGUST WAS 73.5 DEGREES IN 1872 WHILE THE COOLEST WAS IN 1903 AT ONLY 61.1 DEGREES. THE FOLLOWING TABLE LISTS THE WARMEST AUGUST AVERAGE TEMPERATURES. WARMEST AUGUST AVERAGE TEMPERATURE (SINCE 1868) RANK TEMP YEAR 1 73.5 1872 2 72.8 2016 <=== 72.8 1937 4 72.3 1973 72.3 1870 6 72.1 2001 7 72.0 1939 72.0 1877 9 71.5 1938 10 71.4 1920 ON AUGUST 12, THE TEMPERATURE SOARED TO 99 DEGREES. THIS WAS THE FOURTH HOTTEST TEMPERATURE EVER RECORDED IN THE MONTH OF AUGUST. IN FACT THERE WERE TWO DAYS THIS AUGUST THAT CRACKED THE TOP TEN HOTTEST TEMPERATURES RECORDED IN AUGUST. THE FOLLOWING TABLE LISTS THE HOTTEST AUGUST TEMPERATURES. HOTTEST TEMPERATURES IN AUGUST (SINCE 1868) RANK TEMP DATE 1 101 AUG 2, 1975 2 100 AUG 5, 1955 100 AUG 26, 1948 4 99 AUG 12, 2016 <=== 99 AUG 14, 2002 99 AUG 13, 1944 99 AUG 12, 1944 99 AUG 1, 1917 9 98 AUG 11, 2016 <=== 98 SEVERAL OTHERS MOST RECENTLY AUG 9, 2001 THERE WERE A TOTAL OF 9 DAYS THIS MONTH ON WHICH THE TEMPERATURE HIT 90 DEGREES OR HOTTER. THIS TIES FOR THE 4TH MOST SUCH DAYS ON RECORD. THE FOLLOWING TABLE LISTS THE MOST 90+ DEGREE DAYS IN AUGUST. NUMBER OF DAYS 90 DEGREES OR HOTTER IN AUGUST (SINCE 1868) RANK DAYS YEAR 1 13 2002 2 11 1988 3 10 1944 4 9 2016 <=== 9 1955 9 1870 7 8 1978 8 1949 8 1947 8 1876 A TOTAL OF 1.89 INCHES OF RAIN FELL WHICH WAS 1.29 INCHES BELOW NORMAL AND THE DRIEST AUGUST SINCE 2007. THIS ALSO MARKED THE 6TH STRAIGHT MONTH WITH BELOW NORMAL PRECIPITATION. THE LAST MONTH OF ABOVE NORMAL PRECIPITATION WAS IN FEBRUARY. THE HEAVIEST RAIN FELL ON AUG 21 AND 22 WHEN 0.80 INCHES WAS MEASURED. THE DROUGHT WHICH BEGAN EARLIER THIS SUMMER PERSISTED THROUGH THE MONTH. THE DRIEST AUGUST ON RECORD WAS 1996 WHEN ONLY 0.06 INCHES FELL. THE WETTEST WAS 1892 WITH 9.00 INCHES. THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN AUGUST 2016... DATE RECORD PREVIOUS 12 99 - WARMEST HIGH TEMPERATURE 99 IN 1944 /TIED/ **NOTE** CHANGES TO THE GROUND COVER NEAR THE TEMPERATURE SENSOR AT THE CONCORD AIRPORT LIKELY CAUSED THE AFTERNOON TEMPERATURE TO READ A DEGREE OR TWO TOO HIGH ON MANY DAYS DURING AUGUST. IT IS IMPOSSIBLE TO KNOW EXACTLY HOW MUCH THIS AFFECTED CONCORD`S TEMPERATURE READINGS, BUT IT IS LIKELY THAT THIS CHANGE CAUSED A SLIGHT WARM BIAS IN TEMPERATURES. THIS PROBLEM WAS IDENTIFIED AND HAS BEEN ADDRESSED BY MAINTENANCE STAFF. $$ KIMBLE

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