Climatological Report (Seasonal)
Issued by NWS Portland, ME
Issued by NWS Portland, ME
000 CXUS51 KGYX 110117 CLSCON PWMCLSCON 000 TTAA00 GYX 082134 CLIMATE REPORT NATIONAL WEATHER SERVICE GRAY ME 434 PM EST THU DEC 08 2022 ................................... ...THE CONCORD NH CLIMATE SUMMARY FOR THE FALL SEASON, FROM 9/1/2022 TO 11/30/2022... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1868 TO 2022 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 98 09/02/1953 LOW -17 11/30/1875 HIGHEST 88 09/04 88 0 84 09/08 09/15 LOWEST 12 11/21 11 1 15 11/30 AVG. MAXIMUM 63.1 61.0 2.1 63.1 AVG. MINIMUM 38.8 38.5 0.3 41.1 MEAN 50.9 49.8 1.1 52.1 DAYS MAX >= 90 0 0.9 -0.9 0 DAYS MAX <= 32 0 1.5 -1.5 0 DAYS MIN <= 32 33 33.5 -0.5 25 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 22.08 2005 MINIMUM 2.88 1908 TOTALS 10.26 11.50 -1.24 10.43 DAILY AVG. 0.11 0.13 -0.02 0.11 DAYS >= .01 30 30.7 -0.7 32 DAYS >= .10 20 19.1 0.9 20 DAYS >= .50 10 7.5 2.5 8 DAYS >= 1.00 2 3.0 -1.0 3 GREATEST 24 HR. TOTAL 1.52 10/13 TO 10/14 SNOWFALL (INCHES) RECORDS TOTAL 25.7 2011 TOTALS 0.7 3.3 -2.6 0.4 SINCE 7/1 0.7 3.3 -2.6 0.4 SNOWDEPTH AVG. 0 DAYS >= TRACE 3 1.8 1.2 3 DAYS >= 1.0 0 1.0 -1.0 0 GREATEST SNOW DEPTH 1 11/16 24 HR TOTAL 0.7 11/16 DEGREE DAYS HEATING TOTAL 1292 1441 -149 1190 SINCE 7/1 1294 1473 -179 1214 COOLING TOTAL 33 53 -20 42 SINCE 1/1 650 528 122 658 ................................................................ WIND (MPH) AVERAGE WIND SPEED 7.4 HIGHEST WIND SPEED/DIRECTION 31/360 DATE 11/08 HIGHEST GUST SPEED/DIRECTION 43/330 DATE 11/26 SKY COVER AVERAGE SKY COVER 0.39 AVERAGE RH (PERCENT) 72 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 5 HEAVY RAIN 10 RAIN 17 LIGHT RAIN 33 FREEZING RAIN 0 LT FREEZING RAIN 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 3 FOG 47 FOG W/VIS <= 1/4 MILE 21 HAZE 2 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && A COLD FRONT CROSSED NEW ENGLAND TO START THE FALL SEASON FOLLOWED BY A FEW DAYS OF HIGH PRESSURE THAT BROUGHT WARM AND SUNNY DAYS AND COOL NIGHTS. ANOTHER COLD FRONT TRACKED INTO NEW ENGLAND AND STALLED OVER THE AREA WITH SEVERAL WAVES OF LOW PRESSURE TRACKING ALONG THE FRONT BRINGING PERIODS OF MODERATE TO HEAVY RAIN. THIS WAS THEN FOLLOWED BY A DRIER STRETCH OF WEATHER FOR THE SECOND WEEK OF SEPTEMBER BEFORE ANOTHER STALLED FRONTAL BOUNDARY BROUGHT A WIDESPREAD SOAKING RAINFALL EVENT ON THE 18TH AND 19TH. ANOTHER FEATURE OF INTEREST DURING SEPTEMBER WAS TROPICAL STORM FIONA PASSING WELL OFFSHORE ON SEPTEMBER 23RD AND 24TH BRINGING HIGH SURF CONDITIONS TO AREA BEACHES. DURING OCTOBER A RIDGE IN THE JET STREAM DEVELOPED OVER THE WEST COAST OF NORTH AMERICA WITH A TROUGH OF LOW PRESSURE OVER THE GREAT LAKES AND ANOTHER RIDGE NEAR NEWFOUNDLAND. THIS JET STREAM CONFIGURATION LED TO SEVERAL FRONTAL SYSTEMS TRACKING FROM THE OHIO VALLEY ACROSS NEW ENGLAND BRINGING PERIODS OF RAIN AND MULTIPLE TEMPERATURE SWINGS. ALTHOUGH THIS WAS A RELATIVELY ACTIVE PATTERN, THE CONCORD AREA WAS OFTEN TOO FAR WEST OF THE AXIS OF HEAVIEST PRECIPITATION. THERE WAS A PRONOUNCED PATTERN CHANGE AT THE END OF OCTOBER THROUGH EARLY NOVEMBER WHEN A TROUGH OF LOW PRESSURE DEVELOPED ALONG THE WEST COAST OF NORTH AMERICA AND A RIDGE OF HIGH PRESSURE FORMED OVER NEW ENGLAND. THIS LEAD TO MOSTLY DRY CONDITIONS AND EXCEPTIONAL WARMTH THROUGH THE FIRST WEEK AND A HALF OF NOVEMBER. DURING THE FIRST 12 DAYS OF NOVEMBER THE AVERAGE TEMPERATURE WAS 53.3 DEGREES AND WAS THE WARMEST 12 DAY STRETCH DURING NOVEMBER ON RECORD BY 0.5 DEGREES. ALSO DURING THIS STRETCH THE HIGH TEMPERATURE EXCEEDED THE 70 DEGREE MARK FIVE TIMES WITH FOUR DAYS IN A ROW ABOVE 70 DEGREES FROM THE 4TH THROUGH THE 7TH. THE RIDGE OVER NEW ENGLAND BROKE DOWN DURING THE MIDDLE OF NOVEMBER WITH THE DOMINANT PATTERN THROUGH THE END OF FALL CONSISTING OF A RIDGE OF HIGH PRESSURE OVER WESTERN CANADA AND TROUGH OF LOW PRESSURE OVER NEW ENGLAND. THIS PATTERN ALLOWED FOR A COUPLE OF FRONTAL SYSTEMS TO CROSS NEW ENGLAND, BRINGING MAINLY BOUTS OF RAIN ALTHOUGH CONCORD DID RECORD 0.7 INCHES OF SNOW THE MORNING OF THE 16TH. ADDITIONALLY, THE TROUGH OF LOW PRESSURE OVER NEW ENGLAND ALLOWED TEMPERATURES TO TREND BELOW NORMAL THROUGH THE SECOND HALF OF NOVEMBER. THE AVERAGE TEMPERATURE FOR FALL WAS 50.9 DEGREES, WHICH WAS 1.1 DEGREES ABOVE NORMAL. THE WARMEST FALL ON RECORD WAS IN 2017 WHEN THE AVERAGE TEMPERATURE WAS 53.5 DEGREES. THE COOLEST WAS 43.7 DEGREES IN 1972. A TOTAL OF 10.26 INCHES OF PRECIPITATION FELL, WHICH WAS 1.24 INCHES BELOW NORMAL. THE HEAVIEST PRECIPITATION FELL ON OCTOBER 13TH TO 14TH WHEN 1.52 INCHES OF RAIN FELL. THE DRIEST FALL ON RECORD WAS IN 1908 WHEN ONLY 2.88 INCHES OF PRECIPITATION FELL. THE WETTEST WAS 22.08 INCHES IN 2005. ONLY 0.7 INCHES OF SNOW FELL, WHICH WAS 2.6 INCHES BELOW NORMAL. SNOW IN FALL IS OFTEN HIT OR MISS. IN 155 YEARS OF RECORDS THERE HAVE BEEN 3 YEARS WITH NO SNOW IN FALL, MOST RECENTLY IN 2015. THERE HAVE BEEN AN ADDITIONAL 29 YEARS WHICH ONLY RECORDED A TRACE OF SNOWFALL, MOST RECENTLY IN 2010. THE SNOWIEST FALL WAS IN 2011 WHEN 25.7 INCHES FELL. THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN FALL 2022... DATE RECORD PREVIOUS SEP 5 1.41 - GREATEST PRECIPITATION 0.97 IN 1944 OCT 26 61 - WARMEST LOW TEMPERATURE 52 IN 1918 NOV 5 78 - WARMEST HIGH TEMPERATURE 75 IN 1994 NOV 6 62* - WARMEST LOW TEMPERATURE 60 IN 1938 NOV 6 75 - WARMEST HIGH TEMPERATURE 75 IN 1948 (TIED) NOV 12 53 - WARMEST LOW TEMPERATURE 48 IN 1882 *THE RECORD WARM LOW TEMPERATURE OF 62 ON NOVEMBER 6TH WAS ALSO A NEW ALL TIME RECORD WARM LOW FOR THE MONTH OF NOVEMBER. THE PREVIOUS ALL TIME RECORD WARM LOW WAS 60 DEGREES SET MOST RECENTLY ON NOVEMBER 8TH, 1996. $$ DS