Climatological Report (Seasonal)
Issued by NWS Portland, ME
Issued by NWS Portland, ME
000 CXUS51 KGYX 042130 CLSCON PWMCLSCON 000 TTAA00 GYX 041415 CLIMATE REPORT NATIONAL WEATHER SERVICE GRAY ME 1015 AM EDT SUN SEP 04 2022 ................................... ...THE CONCORD NH CLIMATE SUMMARY FOR THE SUMMER SEASON, FROM 6/1/2022 TO 8/31/2022... 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 102 07/03/1966 07/04/1911 LOW 29 08/31/1965 HIGHEST 98 08/04 95 3 97 06/28 LOWEST 41 06/20 37 4 41 06/01 AVG. MAXIMUM 82.8 80.8 2.0 81.3 AVG. MINIMUM 57.1 56.7 0.4 59.3 MEAN 70.0 68.8 1.2 70.3 DAYS MAX >= 90 24 11.6 12.4 16 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 20.49 1897 MINIMUM 2.74 1999 TOTALS 9.81 11.02 -1.21 17.69 DAILY AVG. 0.11 0.12 -0.01 0.19 DAYS >= .01 31 33.6 -2.6 43 DAYS >= .10 19 20.0 -1.0 30 DAYS >= .50 8 7.3 0.7 11 DAYS >= 1.00 2 2.8 -0.8 5 GREATEST 24 HR. TOTAL 1.23 07/12 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 DEGREE DAYS HEATING TOTAL 75 103 -28 69 SINCE 7/1 2 29 -27 24 COOLING TOTAL 561 453 108 585 SINCE 1/1 617 475 142 616 ................................................................ WIND (MPH) AVERAGE WIND SPEED 5.2 HIGHEST WIND SPEED/DIRECTION 29/290 DATE 07/12 HIGHEST GUST SPEED/DIRECTION 50/360 DATE 08/22 SKY COVER AVERAGE SKY COVER 0.32 AVERAGE RH (PERCENT) 68 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 13 HEAVY RAIN 11 RAIN 14 LIGHT RAIN 35 FREEZING RAIN 0 LT FREEZING RAIN 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 FOG 32 FOG W/VIS <= 1/4 MILE 2 HAZE 1 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && THE SUMMER SEASON STARTED OFF COOL AND DAMP IN THE CONCORD AREA AS AN UPPER LOW REMAINED NEARLY STATIONARY OVER THE CANADIAN MARITIMES THROUGH THE FIRST SEVERAL DAYS OF JUNE. ONCE THIS UPPER LOW LOOSENED ITS GRIP ON THE REGION, TEMPERATURES REBOUNDED CLOSER TO NORMAL WHILE ADDITIONAL TROUGHS OF LOW PRESSURE CROSSED THE REGION BRINGING A SOAKING RAIN TO BEGIN THE SECOND WEEK OF JUNE. ANOTHER UPPER LOW ROLLED ACROSS SOUTHERN CANADA AND SETTLED OVER NEW ENGLAND AT THE END OF THE THIRD WEEK OF JUNE BRINGING SEVERAL DAYS OF BELOW NORMAL TEMPERATURES. DURING THIS PERIOD, THE UPPER LOW BROUGHT SUB-FREEZING TEMPERATURES AT THE HIGHEST PEAKS IN THE WHITE MOUNTAINS WITH MT WASHINGTON RECORDING 1.7 INCHES OF SNOW FROM THE 18TH INTO THE 19TH. TEMPERATURES THEN REBOUNDED CLOSER TO NORMAL DURING THE FINAL WEEK OF JUNE. THE PERSISTENT TROUGHING AND UPPER LOWS OVER THE NORTHEAST LED TO TEMPERATURES RUNNING BELOW NORMAL FOR THE MONTH OF JUNE, BUT THIS WOULD CHANGE THROUGH THE END OF SUMMER. THE PERSISTENT TROUGHING OVER THE NORTHEAST US CONTINUED INTO JULY, ALTHOUGH THE CORE OF THE TROUGH SHIFTED FARTHER NORTH INTO EASTERN CANADA WITH THE TROUGH AXIS BECOMING ALIGNED ALONG A SIMILAR LONGITUDE TO CONCORD. THIS TROUGH POSITION ACTED TO SUPPRESS MOISTURE SOUTH OF NEW ENGLAND AND FAVORED HIGH PRESSURE SYSTEMS TO BUILD INTO NEW ENGLAND FROM THE NORTHWEST BRINGING DRY AND COOL CANADIAN AIRMASSES THROUGH THE MIDDLE OF JULY. HOWEVER, HEAT AND HUMIDITY DID BRIEFLY BUILD INTO THE CONCORD REGION AHEAD OF A FRONTAL SYSTEM JULY 11TH AND 12TH WITH THE FRONTAL SYSTEM BRINGING WIDESPREAD SEVERE STORMS ACROSS MUCH OF NEW HAMPSHIRE ON THE 12TH. THIS WAS ALSO WHEN CONCORD RECEIVED THE HEAVIEST RAINFALL OF THE SUMMER WHEN 1.23 INCHES OF RAIN FELL. DURING THE THIRD WEEK OF JULY THE TROUGH STARTED TO SHIFT TO THE WEST AND ALLOWED FOR WARMER AND MORE HUMID AIRMASSES TO ENTER THE REGION. FROM JULY 19TH TO THE 24TH CONCORD EXPERIENCED 6 STRAIGHT DAYS WITH HIGH TEMPERATURES AT OR ABOVE 90 DEGREES. THE HEAT AND HUMIDITY CONTINUED INTO AUGUST WITH THE HOTTEST STRETCH OF THE SUMMER OCCURRING FROM AUGUST 2ND TO THE 9TH WHEN THE HIGH TEMPERATURES CLIMBED TO AT LEAST 90 DEGREES WITH THE HOTTEST DAY REACHING 98 DEGREES ON AUGUST 4TH. THIS SUMMER ENDED UP BEING THE FIRST SUMMER ON RECORD WITH TWO HEAT WAVES OF AT LEAST 6+ DAYS WITH TEMPERATURES REACHING OR EXCEEDING 90 DEGREES. A SLOW MOVING COLD FRONT CROSSED THE AREA LATE AUGUST 9TH BRINGING RELIEF FROM THE HEAT WITH TEMPERATURES RUNNING BELOW NORMAL THROUGH THE MIDDLE OF AUGUST. THE SECOND HALF OF AUGUST FEATURED A BUILDING RIDGE IN THE WESTERN ATLANTIC THAT ALLOWED FOR THE HEAT AND HUMIDITY TO RETURN WITH TEMPERATURES RUNNING ABOVE NORMAL THROUGH THE END OF SUMMER. RAINFALL AVERAGED BELOW NORMAL DURING ALL OF THE SUMMER MONTHS WITH THE LAST MONTH THAT CONCORD RECEIVED ABOVE NORMAL RAINFALL OCCURRING BACK IN APRIL. THIS LED TO EXPANDING AND INTENSIFYING DROUGHT CONDITIONS ACROSS NEW ENGLAND DURING THE SUMMER WITH THE CONCORD AREA STILL EXPERIENCING MODERATE TO SEVERE DROUGHT CONDITIONS TO CLOSE OUT THE SUMMER SEASON. THE AVERAGE TEMPERATURE FOR SUMMER WAS 70.0 DEGREES, WHICH WAS 1.2 DEGREES ABOVE NORMAL AND TIES WITH 2005 AND 1938 AS THE TENTH WARMEST SUMMER ON RECORD. THE WARMEST SUMMER ON RECORD WAS IN 1872 WHEN THE AVERAGE TEMPERATURE WAS 72.3 DEGREES. THE COOLEST WAS 62.6 DEGREES IN 1903. THE FOLLOWING TABLE LISTS THE WARMEST SUMMERS ON RECORD AT CONCORD. WARMEST AVERAGE TEMPERATURE IN SUMMER (SINCE 1868)... RANK TEMP YEAR 1 72.3 1872 2 72.1 1876 3 71.7 1870 4 70.7 2020 5 70.5 2016 6 70.4 1877 7 70.3 2021 8 70.2 2018 9 70.1 1949 10 70.0 2022 <=== 70.0 2005 70.0 1938 A TOTAL OF 9.81 INCHES OF PRECIPITATION FELL, WHICH WAS 1.21 INCHES BELOW NORMAL. THE DRIEST SUMMER ON RECORD WAS IN 1913 WHEN ONLY 3.65 INCHES FELL. THE WETTEST WAS 20.49 INCHES IN 1897. THE HEAVIEST PRECIPITATION FELL FROM THUNDERSTORMS ON JULY 12TH WHEN 1.23 INCHES FELL. THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN SUMMER 2022... DATE RECORD PREVIOUS AUG 4 98 - WARMEST HIGH TEMPERATURE 97 IN 1944 AUG 8 96 - WARMEST HIGH TEMPERATURE 95 IN 2001, 1970 $$ DS