000 CXUS51 KGYX 111530 CLSCON CLIMATE DATA FOR THE AUTUMN OF 2009 IN CONCORD 1030 AM EST FRI DEC 11 2009 THIS IS A SEASONAL SUMMARY FOR THE METEOROLOGICAL AUTUMN (SEPTEMBER... OCTOBER...NOVEMBER) OF 2009 FOR CONCORD, NEW HAMPSHIRE. ..... CONCORD NEW HAMPSHIRE ..... SEP. OCT. NOV. AUTUMN 2009 ...TEMPERATURES... AVERAGE TEMPERATURE 57.7 45.5 41.7 48.3 30 YEAR NORMAL 59.4 47.8 37.6 48.2 DEPARTURE MINUS 1.7 MINUS 2.3 PLUS 4.1 PLUS 0.1 RANK (1 THROUGH 142) 115TH (T) 127TH 10TH (T) 84TH (T) (1 = WARMEST) HIGHEST TEMPERATURE 84 71 69 84 - SEP. 4TH LOWEST TEMPERATURE 31 21 19 19 - NOV. 19TH ...PRECIPITATION... MEASURED (INCHES) 0.92 5.15 3.32 9.39 30 YEAR NORMAL 3.16 3.46 3.57 10.19 DEPARTURE MINUS 2.24 PLUS 1.69 MINUS 0.25 MINUS 0.80 RANK (1 THROUGH 142) 130TH 16TH 65TH 77TH (1 = WETTEST) GREATEST RAINFALL IN ANY 24-HOUR PERIOD 0.42 1.87 1.93 1.93 - NOV. 14-15TH ...SNOWFALL DATA... MEASURED (INCHES) 0.0 TRACE 0.0 TRACE 30 YEAR NORMAL 0.0 0.1 4.7 4.8 DEPARTURE NONE MINUS 0.1 MINUS 4.7 MINUS 4.8 RANK (1 THROUGH 142) ---- 15TH (T) 139TH (T) 113TH (T) (1 = SNOWIEST) (NOTE: OCT TIED FOR LEAST SNOWIEST WITH ZERO SNOWFALL) GREATEST SNOWFALL (INCHES) IN ANY 24-HOUR PERIOD 0.0 TRACE 1.0 TRACE - OCT. 16TH & 18TH ...DEGREE DAY DATA... HEATING DEGREE DAYS 223 597 691 1511 NORMAL 212 548 835 1595 DEPARTURE PLUS 11 PLUS 49 MINUS 144 MINUS 84 COOLING DEGREE DAYS 10 0 0 10 NORMAL 33 1 0 34 DEPARTURE MINUS 23 MINUS 1 NONE MINUS 24 ...WIND... AVERAGE SPEED 3.7 MPH 4.4 MPH 4.5 MPH 4.2 MPH NORMAL 5.4 MPH 5.9 MPH 6.5 MPH 5.9 MPH DEPARTURE -1.7 MPH -1.5 MPH -2.0 MPH -1.7 MPH HIGHEST WIND GUST 33 MPH 41 MPH 52 MPH 52 MPH - NOV. 28TH ...SEA LEVEL PRESSURE... HIGHEST (IN INCHES) 30.53 30.39 30.57 30.57 - NOV. 23RD LOWEST (IN INCHES) 29.37 29.31 29.03 29.03 - NOV. 28TH AUTUMN 2009 NORMAL DEPARTURE ...NUMBER OF DAYS WITH... MAX TEMPERATURE 90 OR WARMER 0 0.4 MINUS 0.4 MAX TEMPERATURE 32 OR COLDER 0 1.8 MINUS 1.8 MIN TEMPERATURE 32 OR COLDER 38 38.1 MINUS 0.1 MIN TEMPERATURE 0 OR COLDER 0 0.1 MINUS 0.1 THUNDERSTORMS 0 2.5 MINUS 2.5 DENSE FOG (VSBY < 1/4 MI) 19 18.1 PLUS 0.9 0.01 INCH OR MORE PCPN 25 29.9 MINUS 4.9 1.00 INCH OR MORE PCPN 2 2.5 MINUS 0.5 SNOWFALL TRACE OR MORE 2 N/A SNOWFALL 1 INCH OR MORE 0 1.5 MINUS 1.5 SNOWFALL 6 INCHES OR MORE 0 N/A WARMEST AUTUMN ... 53.0 DEGREES IN 1961 COLDEST AUTUMN ... 43.7 DEGREES IN 1972 WETTEST AUTUMN ... 22.08 INCHES IN 2005 DRIEST AUTUMN .... 2.88 INCHES IN 1908 SNOWIEST AUTUMN ......... 25.0 INCHES IN 1873 LEAST SNOWIEST AUTUMN ... 0.0 INCHES IN 1876 AND 2006 NOTE...THE METEOROLOGICAL AUTUMN REFERS TO SEPTEMBER - OCTOBER - NOVEMBER ...DISCUSSION... CONCORD HAD A NEARLY NORMAL AVERAGE SEASONAL TEMPERATURE FOR AUTUMN OF 2009 WHILE BOTH RAINFALL AND SNOWFALL WERE BELOW NORMAL. THE AVERAGE TEMPERATURE FOR THE SEASON WAS 48.3 DEGREES...JUST 0.1 DEGREE ABOVE NORMAL AND TIED WITH SEVEN OTHER YEARS, THE MOST RECENT JUST LAST YEAR, AS THE 84TH WARMEST IN THE PAST 142 YEARS. THE WARMEST AUTUMN ON RECORD IS 53.0 DEGREES IN 1961 AND THE COLDEST IS 43.7 DEGREES IN 1972. SEPTEMBER AND OCTOBER WERE BOTH COLDER THAN NORMAL, BY 1.7 DEGREES AND 2.3 DEGREES RESPECTIVELY. IT WAS A VERY WARM NOVEMBER, THE 10TH WARMEST ON RECORD, THAT BROUGHT THE SEASONAL AVERAGE TO ITS SLIGHTLY ABOVE NORMAL READING. NOVEMBER WAS 4.1 DEGREES ABOVE NORMAL, TYING 1982 AS THE 10TH WARMEST. THE WARMEST NOVEMBER WAS 43.3 DEGREES IN 2006. THE HIGH FOR THE SEASON WAS 84 DEGREES ON THE 4TH OF SEPTEMBER. THERE WERE THREE OTHER DAYS THIS FALL WHEN THE MERCURY REACHED 80 DEGREES. THEY ALL OCCURRED IN SEPTEMBER WITH A HIGH OF 80 DEGREES ON THE 3RD, 5TH AND 23RD. THE COLDEST TEMPERATURE FOR THE SEASON WAS 19 DEGREES ON NOVEMBER 19TH, THE ONLY TIME CONCORD DROPPED BELOW 20 DEGREES THIS FALL. THERE WERE 38 DAYS WITH LOWS OF 32 OR COLDER WHICH IS NORMAL FOR THE FALL SEASON IN CONCORD /NORMALLY CONCORD AVERAGES 38.1 DAYS WITH LOWS OF 32 OR COLDER DURING THE THREE AUTUMN MONTHS/. THERE WAS A TOTAL OF 9.39 INCHES OF PRECIPITATION THIS FALL. THIS WAS 0.80 INCHES BELOW NORMAL AND THE 77TH WETTEST FALL IN THE PAST 142 YEARS. THE WETTEST FALL WAS IN 2005 WITH 22.08 INCHES AND THE DRIEST WAS IN 1908 WITH JUST 2.88 INCHES OF RAIN. THERE WERE ONLY TWO DAYS WITH OVER AN INCH OF RAIN. NOVEMBER 14TH RECORDED 1.92 INCHES OF RAIN AND OCTOBER 24TH HAD 1.87 INCHES OF RAIN. THE MOST RAIN FOR ANY DAY IN SEPTEMBER WAS A MERE 0.42 INCHES ON THE 27TH AS THE MONTH TOTALED UNDER AN INCH OF RAIN /0.92 INCHES/ AND WAS 2.24 INCHES BELOW NORMAL. THIS WAS THE 13TH DRIEST SEPTEMBER EVER RECORDED IN CONCORD. OCTOBER WAS THE WETTEST FALL MONTH IN 2009 WITH 5.15 INCHES OF RAIN AND THE ONLY MONTH TO AVERAGE ABOVE NORMAL RAINFALL /BY 1.69 INCHES/. IT WAS THE 16TH WETTEST OCTOBER IN CONCORD. NOVEMBER, WITH ITS 3.32 INCHES OF RAIN, WAS 0.25 INCHES BELOW NORMAL. THERE WAS ONLY A TRACE OF SNOW THIS FALL WHICH WAS 4.8 INCHES BELOW NORMAL AND TIED 27 OTHER YEARS, THE MOST RECENT IN 2003, AS THE SECOND LEAST SNOWIEST FALL ON RECORD. THERE WERE TWO YEARS, 1876 AND 2006, WHEN CONCORD HAD NO SNOW DURING THE THREE AUTUMN MONTHS. SEPTEMBER, AS WOULD BE EXPECTED, HAD NO SNOW. BUT, SURPRISINGLY NOVEMBER ALSO HAD NO SNOW...ONLY THE 4TH TIME IN THE PAST 142 YEARS THAT HAPPENED. OCTOBER RECORDED A TRACE OF SNOW ON TWO OCCASIONS ...ON THE 16TH AND 18TH. $$ SJC