Climatological Report (Seasonal)
Issued by NWS Caribou, ME
Issued by NWS Caribou, ME
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000 CXUS51 KCAR 070049 CLSCAR CLIMATE REPORT NATIONAL WEATHER SERVICE CARIBOU ME 848 PM EDT MON SEP 06 2021 ................................... ...THE CARIBOU ME CLIMATE SUMMARY FOR THE SEASON, FROM 6/1/2021 TO 8/31/2021... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1939 TO 2021 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 96 06/29/1944 LOW 30 06/07/1958 HIGHEST 92 06/07 MM MM 96 06/19 06/08 08/13 LOWEST 38 06/11 MM MM 31 06/02 AVG. MAXIMUM 77.2 75.0 2.2 77.7 AVG. MINIMUM 55.3 53.7 1.6 54.9 MEAN 66.2 64.3 1.9 66.3 DAYS MAX >= 90 5 1.7 3.3 6 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MIN <= 32 0 0.1 -0.1 2 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 5.90 2020 MINIMUM 5.90 2020 TOTALS 8.81 11.73 -2.92 5.90 DAILY AVG. 0.09 0.13 -0.04 0.07 DAYS >= .01 35 41.2 -6.2 29 DAYS >= .10 19 23.7 -4.7 18 DAYS >= .50 7 7.8 -0.8 5 DAYS >= 1.00 1 2.1 -1.1 0 GREATEST 24 HR. TOTAL 1.13 0MM09 TO 07/09 0.74 SNOWFALL (INCHES) RECORDS TOTAL T 2011 TOTALS 0.0 0.0 0.0 0.0 SINCE 7/1 0.0 0.0 0.0 MM SNOWDEPTH AVG. 0 MM DAYS >= 1.0 0 0.0 0.0 MM GREATEST SNOW DEPTH 0 MM MM 24 HR TOTAL MM MM DEGREE DAYS HEATING TOTAL 181 261 -80 205 SINCE 7/1 104 113 -9 MM COOLING TOTAL 319 201 118 351 SINCE 1/1 342 207 135 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 6.2 HIGHEST WIND SPEED/DIRECTION 28/220 DATE 06/21 HIGHEST GUST SPEED/DIRECTION 44/230 DATE 06/21 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.42 NUMBER OF DAYS FAIR 45 NUMBER OF DAYS PC 32 NUMBER OF DAYS CLOUDY 15 AVERAGE RH (PERCENT) 68 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 11 MIXED PRECIP 0 HEAVY RAIN 13 RAIN 15 LIGHT RAIN 44 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 1 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 34 FOG W/VIS <= 1/4 MILE 4 HAZE 3 - INDICATES NEGATIVE NUMBERS. * INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. ...2021 SUMMER CLIMATE NARRATIVE FOR NORTHERN AND EASTERN MAINE... METEOROLOGICAL SUMMER (JUNE THROUGH AUGUST) OF 2021 ACROSS NORTHERN AND EASTERN MAINE WAS WARMER THAN NORMAL. PRECIPITATION WAS NEAR TO A BIT ABOVE NORMAL ACROSS THE DOWNEAST REGION, AND BELOW TO WELL BELOW NORMAL ACROSS NORTHERN AREAS. IN CARIBOU, IT RANKED AS THE 3RD WARMEST SUMMER ON RECORD BEHIND ONLY 2018 AND 2020. SIX OF THE TOP 10 WARMEST SUMMERS IN CARIBOU HAVE BEEN OBSERVED SINCE 2010. IN HOULTON, IT RANKED AS THE 6TH WARMEST SUMMER ON RECORD. BANGOR AND MILLINOCKET BOTH OBSERVED THEIR 7TH WARMEST SUMMER ON RECORD. ALTHOUGH IT WAS A DRY SUMMER ACROSS NORTHERN MAINE, NONE OF THE LONG TERM CLIMATE SITES OBSERVED A TOP 10 DRIEST SUMMER. CARIBOU CAME THE CLOSEST WITH THE 14TH DRIEST SUMMER ON RECORD. ON JUNE 1ST, THERE WERE NO DROUGHT CONDITIONS OBSERVED ACROSS THE REGION. BY AUGUST 31ST, MODERATE DROUGHT WAS OBSERVED ACROSS MOST OF THE REGION TO THE NORTH AND WEST OF BAXTER STATE PARK. JUNE 2021 WAS A VERY WARM MONTH AND IT WAS THE ALL-TIME WARMEST ON RECORD IN CARIBOU. HOULTON AND MILLINOCKET BOTH OBSERVED THEIR 2ND WARMEST JUNE ON RECORD; AND FINALLY IN BANGOR IT WAS THE 4TH WARMEST ON RECORD. IN BANGOR, IT WAS THE 2ND DRIEST JUNE ON RECORD WITH ONLY 0.97" OF RAIN. THE MOST SIGNIFICANT WEATHER EVENTS OF THE MONTH WERE A FLASH FLOODING EVENT EARLY ON THE MORNING OF THE 9TH WITH LOCALLY UP TO 5 INCHES OF RAIN IN PARTS OF HANCOCK AND WASHINGTON COUNTIES. ON THE 21ST, THERE WERE MICROBURSTS THAT PRODUCED WIND THAT WAS ESTIMATED AT 100 TO 110 MPH IN LIMESTONE, AND 90 TO 100 MPH FROM CASTLE HILL TO JUST SOUTHWEST OF CARIBOU. JULY WAS A COOLER THAN AVERAGE MONTH, AND WAS THE FIRST MONTH SINCE MAY 2020 WITH BELOW AVERAGE TEMPERATURES. IT WAS THE COOLEST JULY SINCE 2009 IN CARIBOU, HOULTON, MILLINOCKET, AND BANGOR. PRECIPITATION WAS WELL ABOVE AVERAGE DOWNEAST AND IT WAS THE ALL- TIME WETTEST JUNE ON RECORD IN BANGOR WITH 7.67" OF RAIN. IN WHAT IS TYPICALLY THE MOST ACTIVE MONTH OF THE YEAR FOR SEVERE WEATHER, THERE WERE ONLY TWO SEVERE THUNDERSTORM WARNINGS ISSUED ALL MONTH. AUGUST FEATURED WELL ABOVE AVERAGE TEMPERATURES, AND WAS THE ALL- TIME WARMEST IN CARIBOU AND HOULTON, THE 2ND WARMEST IN MILLINOCKET, AND THE 7TH WARMEST IN BANGOR. RAINFALL WAS BELOW AVERAGE ACROSS MOST OF THE REGION, AND RANGED FROM AS LOW AS 40 PERCENT OF AVERAGE ACROSS THE NORTH AND FAR WEST. RAINFALL WAS CLOSER TO AVERAGE DOWNEAST DUE TO RAINFALL ASSOCIATED WITH THE REMNANT LOW PRESSURE OF HENRI. $$ CB/VJN