455
CXUS51 KCAR 041826 CCA
CLSCAR
CLIMATE REPORT
NATIONAL WEATHER SERVICE CARIBOU ME
219 PM EDT THU SEP 04 2025
...............................
...THE CARIBOU ME CLIMATE SUMMARY FOR THE SEASON, FROM
6/1/2025 TO 8/31/2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1939 TO 2025
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 94 08/11 MM MM 96 06/19
08/12
08/13
LOWEST 37 06/14 MM MM 42 06/02
08/30
AVG. MAXIMUM 75.7 75.0 0.7 77.8
AVG. MINIMUM 53.5 53.7 -0.2 56.8
MEAN 64.6 64.3 0.3 67.3
DAYS MAX >= 90 6 1.7 4.3 3
DAYS MAX <= 32 MM 0.0 MM 0
DAYS MIN <= 32 0 0.1 -0.1 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 14.59 2023
MINIMUM 5.90 2020
TOTALS 10.24 11.73 -1.49 13.12
DAILY AVG. 0.11 0.13 -0.02 0.15
DAYS >= .01 29 41.2 -12.2 40
DAYS >= .10 19 23.7 -4.7 23
DAYS >= .50 7 7.8 -0.8 9
DAYS >= 1.00 3 2.1 0.9 4
GREATEST
24 HR. TOTAL 1.32 MM 2.16
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 0
DAYS >= 1.0 0 0.0 0.0 0
GREATEST
SNOW DEPTH 0 0 MM
24 HR TOTAL MM MM
DEGREE DAYS
HEATING TOTAL 256 261 -5 114
SINCE 7/1 115 113 2 MM
COOLING TOTAL 247 201 46 351
SINCE 1/1 252 207 45 MM
............................................................
WIND (MPH)
AVERAGE WIND SPEED 5.8
HIGHEST WIND SPEED/DIRECTION 23/170 DATE 06/09
HIGHEST GUST SPEED/DIRECTION 40/290 DATE 07/03
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.37
NUMBER OF DAYS FAIR 51
NUMBER OF DAYS PC 27
NUMBER OF DAYS CLOUDY 14
AVERAGE RH (PERCENT) 72
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 7 MIXED PRECIP 1
HEAVY RAIN 14 RAIN 18
LIGHT RAIN 50 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 51 FOG W/VIS <= 1/4 MILE 2
HAZE 11
- INDICATES NEGATIVE NUMBERS.
* INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
............................................................
..NORTHERN AND EASTERN MAINE SUMMER 2025 CLIMATE NARRATIVE
THE METEOROLOGICAL SUMMER (JUNE - AUGUST) SEASON WRAPPED UP WITH
SLIGHTLY ABOVE AVERAGE TEMPERATURES, AND SIGNIFICANTLY BELOW AVERAGE
PRECIPITATION, PREDOMINANTLY AT BANGOR, MILLINOCKET, AND HOULTON.
AVERAGE TEMPERATURES MOSTLY AROUND NORMAL, WITH A SLIGHT WARM
ANOMALY. CARIBOU WAS 0.3F ABOVE NORMAL, WITH A SEASONAL AVERAGE
TEMPERATURE OF 64.6F. BANGOR WAS 0.2F ABOVE NORMAL AT 67.3F.
MILLINOCKET WAS THE WARMEST STATION, 0.9F ABOVE NORMAL, AT 66.7F.
LASTLY, HOULTON WAS ABOUT 0.6F ABOVE AVERAGE, WITH A SEASONAL
AVERAGE TEMPERATURE OF 64.2F.
THIS SUMMER SEASON HAD SOME ABOVE AVERAGE MAXIMUM TEMPERATURES WITH
SOME HOT SPELLS THAT OCCURRED THROUGHOUT THE STATE. ONE SUCH HOT DAY
WAS JUNE 24TH. BANGOR SAW A HIGH OF 98F THAT DAY, WHICH TIED THE
RECORD HIGH TEMPERATURE FOR THE MONTH OF JUNE. THE RECORD WAS
PREVIOUSLY SET ON JUNE 27TH, 1941. IN ADDITION, IT WAS THE HOTTEST
DAY IN BANGOR SINCE JULY 14TH, 1995 (99F). RECORDS IN BANGOR DATE
BACK TO 1925. HOULTON SAW A HIGH TEMPERATURE OF 92F, WHICH SET A NEW
DAILY RECORD. HIGH TEMPERATURES FELL SHORT OF RECORDS IN MILLINOCKET
AND CARIBOU ON JUNE 24TH.
ANOTHER HOT STRETCH OCCURRED AUGUST 10TH-13TH, WHERE CARIBOU WAS
ABOVE 90F FOR FOUR CONSECUTIVE DAYS. THIS TIED THE RECORD FOR
LONGEST STREAK OF DAYS AT OR ABOVE 90F IN CARIBOU. ADDITIONALLY, IT
WAS THE WARMEST FOUR-DAY STRETCH ON RECORD FOR CARIBOU WHEN
AVERAGING BOTH HIGH AND LOW TEMPERATURES (79.0F). THE PREVIOUS
WARMEST STRETCH WAS JULY 26TH-29TH, 1963 (78.9F). RECORDS IN CARIBOU
DATE BACK TO 1939.
IN TERMS OF SEVERE WEATHER ACTIVITY, THERE WERE OVERALL ABOUT 40
SEVERE THUNDERSTORM WARNINGS ISSUED, 3 FLASH FLOOD WARNINGS ISSUED,
AND 6 TORNADO WARNINGS ISSUED. ON JUNE 5TH, MULTIPLE THUNDERSTORMS
ROLLED THROUGH NORTHERN MAINE, RESULTING IN NUMEROUS TREES DOWN,
COVERING VARIOUS ROADS THROUGHOUT THE NORTH. FLASH FLOODING ON JULY
3RD RESULTED IN DAMAGED AND ERODED TREES, WITH INDICATIONS OF WATER
MOVEMENT OVER ROADS IN PISCATAQUIS COUNTY. FLASH FLOODING ON JULY
17TH CAUSED SIGNIFICANT FLOOD DAMAGE IN NORTHERN SOMERSET COUNTY,
WITH MULTIPLE CULVERTS AND DITCHES DESTROYED. ON THIS SAME DAY, 6
TORNADO WARNINGS WERE ISSUED BASED ON SEVERE THUNDERSTORMS WITH
ROTATION SIGNATURES. NONE OF THESE TORNADOES WERE OFFICIALLY
VERIFIED, HOWEVER. HURRICANE ERIN DID MOVE TO OUR SOUTHWEST IN THE
ATLANTIC OCEAN, MAINLY CAUSING SOME HIGH SURF ADVISORIES ALONG OUR
COASTLINES.
A BIG STORY FOR THE SUMMER SEASON WAS THE SIGNIFICANTLY BELOW
AVERAGE RAINFALL. THROUGHOUT THE SUMMER SEASON, CARIBOU GOT THE MOST
RAIN OUT OF OUR STATIONS, RECEIVING 10.24 INCHES OF RAIN, WHICH IS
ABOUT 1.49 INCHES BELOW CLIMATOLOGICAL NORMAL. BANGOR ONLY RECEIVED
5.44 INCHES OF RAIN THIS SUMMER, RESULTING IN A 4.65 DEFICIT FROM
CLIMATOLOGICAL NORMAL. MILLINOCKET RECEIVED 7.64 INCHES OF RAIN,
WHICH IS 4.52 INCHES OF RAIN BELOW NORMAL. LASTLY, HOULTON GOT 8.57
INCHES OF RAIN THIS SUMMER, WHICH IS A 2.62 INCH DEFICIT FROM
NORMAL. STARTING IN JUNE, NORTHERN MAINE WAS NOT IN DROUGHT. AS OF
THE END OF AUGUST, THIS IS NOW OFFICIALLY THE 3RD DRIEST SUMMER FOR
BANGOR, BEHIND 1949 AND 1957. COASTAL MAINE FINISHED SUMMER 2025 IN
A D2 SEVERE DROUGHT. MEANWHILE, DOWNEAST AND CENTRAL MAINE IN A D1
MODERATE DROUGHT, AND NORTHEASTERN MAINE IN D0 ABNORMALLY DRY. THE
NORTH WOODS REGION IN NORTHWESTERN AROOSTOOK WAS THE ONLY DROUGHT-
FREE REGION AT SUMMER’S END.
FOR THE NEXT SEASONAL OUTLOOK GIVEN BY THE CLIMATE PREDICTION CENTER
(CPC), LOOKING AT AN ELEVATED RISK OF ABOVE AVERAGE TEMPERATURES FOR
METEOROLOGICAL FALL (SEPTEMBER THROUGH NOVEMBER). THERE IS NOT A
STRONG SIGNAL FOR ABOVE OR BELOW AVERAGE PRECIPITATION FOR THIS TIME
FRAME, HOWEVER. TYPICAL AVERAGE TEMPERATURES IN THE CARIBOU AREA ARE
IN THE 50S IN SEPTEMBER, 40S IN OCTOBER, AND 30S IN NOVEMBER. FROST
DOES START TO BECOME A CONCERN BEGINNING IN SEPTEMBER, AS OVERNIGHT
LOWS BEGIN TO CREEP DOWN TO BELOW FREEZING. SNOW IS EXPECTED TO
BEGIN TO FALL IN METEOROLOGICAL FALL. NORMAL AMOUNTS OF SNOW IN THE
CARIBOU AREA BEGINS IN OCTOBER, WITH TYPICALLY ONLY 1-2 INCHES
FALLING, AND NOVEMBER TYPICALLY SEEING UP TO 10 INCHES BAKED ON
CLIMATE NORMALS.
ASB/NC
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