Climatological Report (Monthly)
Issued by NWS Caribou, ME
Issued by NWS Caribou, ME
000 CXUS51 KCAR 060032 CCA CLMBGR CLIMATE REPORT...FINAL NATIONAL WEATHER SERVICE CARIBOU ME 647 PM EDT THU AUG 03 2023 ................................... ...THE BANGOR ME CLIMATE SUMMARY FOR THE MONTH OF JULY 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1925 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 99 07/14/1995 07/30/1949 07/04/1949 LOW 37 07/16/1946 HIGHEST 92 07/06 MM MM 92 07/23 LOWEST 54 07/31 MM MM 48 07/07 07/10 AVG. MAXIMUM 82.0 80.4 1.6 84.1 AVG. MINIMUM 64.0 58.6 5.4 58.9 MEAN 73.0 69.5 3.5 71.5 DAYS MAX >= 90 2 2.2 -0.2 3 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 7.67 2021 MINIMUM 0.27 1952 TOTALS 3.98 0.82 DAILY AVG. 0.13 0.10 0.03 0.08 DAYS >= .01 11 10.9 0.1 9 DAYS >= .10 7 6.8 0.2 6 DAYS >= .50 2 2.2 -0.2 1 DAYS >= 1.00 2 0.7 1.3 1 GREATEST 24 HR. TOTAL 1.49 07/16 TO 07/17 1.34 07/18 TO 07/19 SNOWFALL (INCHES) RECORDS TOTAL MM MM TOTALS 0.0 0.0 0.0 0.0 SINCE 7/1 0.0 0.0 0.0 MM SNOWDEPTH AVG. 0 0 DAYS >= 1.0 0 0.0 0.0 0 GREATEST SNOW DEPTH 0 0 MM 24 HR TOTAL 0.0 MM DEGREE DAYS HEATING TOTAL 0 16 -16 3 SINCE 7/1 0 11 -11 MM COOLING TOTAL 256 156 100 212 SINCE 1/1 302 221 81 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 6.2 HIGHEST WIND SPEED/DIRECTION 23/310 DATE 07/31 HIGHEST GUST SPEED/DIRECTION 35/300 DATE 07/31 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.68 NUMBER OF DAYS FAIR 3 NUMBER OF DAYS PC 13 NUMBER OF DAYS CLOUDY 15 AVERAGE RH (PERCENT) 81 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 3 MIXED PRECIP 0 HEAVY RAIN 5 RAIN 7 LIGHT RAIN 13 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 26 FOG W/VIS <= 1/4 MILE 5 HAZE 2 - INDICATES NEGATIVE NUMBERS. * INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. && ...NORTHERN/EASTERN MAINE JULY 2023 CLIMATE MONTHLY SUMMARY... JULY 2023 WILL BE REMEMBERED FOR VERY WARM AND HUMID CONDITIONS FOR NORTHERN/EASTERN MAINE WITH NEAR TO ABOVE AVERAGE RAINFALL. AFTER A RELATIVELY COOL MAY AND JUNE, TEMPERATURES ACROSS THE REGION IN JULY RANGED FROM 3 TO 5 DEGREES ABOVE AVERAGE WITH THE HIGHEST DEPARTURES ACROSS THE NORTH. IN FACT, JULY 2023 WAS THE WARMEST JULY ON RECORD AT CARIBOU, BREAKING THE PREVIOUS WARMEST JULY OF 70.9 DEG SET IN 2018. THE WARMEST AFTERNOONS OF THE MONTH WERE THE 6TH AND 7TH WHEN HIGHS OF LOWER 90S WERE REACHED AT THE CLIMATE SITES. THE COOLEST EARLY MORNING LOW WAS ON THE 31ST WHEN LOWS OF UPPER 40S TO LOWER 50S WERE RECORDED. THE FOLLOWING TABLE LISTS AREA CLIMATE SITES WITHIN THE TOP 5 WARMEST JULYS AND CORRESPONDING WARMEST JULYS ON RECORD FOR REFERENCE: LOCATION TEMP(DEG F) RANKING WARMEST YEAR (DEG F) CARIBOU 71.5 1ST HOULTON 71.2 2ND 1973 71.4 MILLINOCKET 72.4 2ND 1952 73.3 BANGOR 73.0 4TH 1935 74.1 IT`S INTERESTING TO NOTE THAT OVERNIGHT LOW TEMPERATURE DEPARTURES WERE MORE RESPONSIBLE FOR THE WARMTH OF THIS MONTH THAN DAYTIME HIGHS. FOR INSTANCE, AT CARIBOU, THE AVERAGE MAXIMUM TEMPERATURE FOR JULY 2023 OF 80.6 DEGREES WAS 4TH WARMEST, FINISHING BEHIND THE PREVIOUS WARMEST JULY 2018 AVERAGE MAX TEMP OF 82.4 DEGREES. THE AVERAGE MINIMUM TEMPERATURE OF 62.4 DEGREES, HOWEVER, OUTPACED THE PRIOR HIGHEST AVERAGE MINIMUM TEMPERATURE 59.9 DEGREES FROM JULY 2020 BY A LITTLE MORE MARGIN THEN THE DIFFERENCE IN AVERAGE MAXIMUM HIGH TEMPS FROM THE FIRST AND SECOND PLACE FINISHERS, RESULTING IN JULY 2023 BEING THE NEW AVERAGE TEMPERATURE RECORD HOLDER. THE KEY TO VERY WARM OVERNIGHT LOW TEMPS THIS MONTH, ESPECIALLY ACROSS THE NORTH, WAS A CONTINUED SOUTH TO SOUTHWEST WIND FLOW WITH NO SIGNIFICANT COLD FRONTAL PASSAGES UNTIL THE END OF THE MONTH. THIS RESULTED IN MANY DAYS WITH HUMID DEWPOINT TEMPERATURES OF MID TO UPPER 60S AND EVEN A FEW DAYS WITH VERY TROPICAL DEWPOINTS INTO THE LOWER 70S WITH VERY LITTLE BREAKS. THE FIRST SIGNIFICANT COLD FRONT PASSAGE RESULTED IN COOLER DAYTIME TEMPS ACCOMPANIED BY DEWPOINTS OF 50S OR LESS FROM THE 29TH-31ST OF THE MONTH. RAINFALL ACROSS THE REGION THIS MONTH AS TYPICAL FOR SUMMER MONTHS WAS SOMEWHAT PATCHY, RANGING FROM AS LOW AS 80 PERCENT ACROSS PORTIONS OF THE NORTH AND PENOBSCOT BAY AREA UPWARDS TO LOCALLY 200 PERCENT OF AVERAGE ACROSS SOME EAST CENTRAL LOCATIONS. THE CLIMATE SITES RANGED FROM 90 TO 140 PERCENT OF AVERAGE, WITH NONE RECORDING TOP 15 MAXIMUM TOTALS FOR JULY. THE JULY 2023 TOTAL PAN EVAPORATION OF 5.05 INCHES AT CARIBOU WAS GREATER THAN RAINFALL AT MOST LOCATIONS WITHIN THE REGION, MEANING SOILS HAD A CHANCE TO DRY OUT SOME FROM LAST MONTHS HEAVY RAINFALL. $$ VJN/CB