Climatological Report (Annual)
Issued by NWS Caribou, ME
Issued by NWS Caribou, ME
918
CXUS51 KCAR 082105
CLACAR
CLIMATE REPORT
NATIONAL WEATHER SERVICE CARIBOU ME
344 PM EST THU JAN 08 2026
...................................
...THE CARIBOU ME CLIMATE SUMMARY FOR THE YEAR OF 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1939 TO 2026
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 96 05/22/1977
06/29/1944
LOW -41 02/01/1955
HIGHEST 94 08/11 MM MM 96 06/19
08/12
08/13
LOWEST -16 01/22 MM MM -12 01/31
AVG. MAXIMUM 50.9 50.2 0.7 56.3
AVG. MINIMUM 31.5 31.2 0.3 37.1
MEAN 41.2 40.7 0.5 46.7
DAYS MAX >= 90 6 1.9 4.1 3
DAYS MAX <= 32 90 90.6 -0.6 46
DAYS MIN <= 32 167 179.9 -12.9 131
DAYS MIN <= 0 32 38.1 -6.1 10
PRECIPITATION (INCHES)
RECORD
MAXIMUM 54.21 2005
MINIMUM 10.11 2002
TOTALS 39.03 40.70 -1.67 30.97
DAILY AVG. 0.11 0.11 -0.00 0.09
DAYS >= .01 168 160.9 7.1 131
DAYS >= .10 83 88.6 -5.6 75
DAYS >= .50 24 26.6 -2.6 18
DAYS >= 1.00 6 6.1 -0.1 5
GREATEST
24 HR. TOTAL 1.80 0MM17 TO 05/18 2.16
SNOWFALL (INCHES)
RECORDS
TOTAL 181.1 1954
TOTALS 118.6 118.2 0.4 74.0
SINCE 7/1 35.0 37.4 -2.4 MM
SNOWDEPTH AVG. 2 2
DAYS >= 1.0 36 30.0 6.0 19
GREATEST
SNOW DEPTH 18 02/20 15 02/02
02/21
03/02
24 HR TOTAL MM MM 29.8
DEGREE DAYS
HEATING TOTAL 8803 9048 -245 6419
SINCE 7/1 3417 3388 29 MM
COOLING TOTAL 259 225 34 399
SINCE 1/1 259 224 35 MM
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WIND (MPH)
AVERAGE WIND SPEED 6.9
HIGHEST WIND SPEED/DIRECTION 200/024 DATE 04/29
HIGHEST GUST SPEED/DIRECTION 180/040 DATE 04/29
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.52
NUMBER OF DAYS FAIR 126
NUMBER OF DAYS PC 125
NUMBER OF DAYS CLOUDY 111
AVERAGE RH (PERCENT) 71
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 9 MIXED PRECIP 1
HEAVY RAIN 30 RAIN 51
LIGHT RAIN 141 FREEZING RAIN 1
LT FREEZING RAIN 10 HAIL 2
HEAVY SNOW 7 SNOW 25
LIGHT SNOW 115 SLEET 3
FOG 176 FOG W/VIS <= 1/4 MILE 24
HAZE 31
- INDICATES NEGATIVE NUMBERS.
* INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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...2025 ANNUAL CLIMATE REVIEW FOR NORTHERN AND EASTERN MAINE...
OVERALL, 2025 WAS A WARMER THAN AVERAGE YEAR, WITH YEARLY AVERAGE
MAXIMUM, MINIMUM, AND AVERAGE TEMPERATURES BEING ABOVE
CLIMATOLOGICAL NORMAL ACROSS ALL CLIMATE SITES. PRECIPITATION WAS
BELOW NORMAL, WITH A PROLONGED DROUGHT PERIOD ONGOING IN MAINE FROM
THE SUMMER INTO THE WINTER. THIS YEAR DID NOT RANK IN THE TOP 10 FOR
AVERAGE TEMPERATURES, PRECIPITATION, OR SNOWFALL. DESPITE BEING AN
ABOVE NORMAL YEAR FOR AVERAGE TEMPERATURES, THIS WAS THE COOLEST
YEAR FOR ALL FOUR CLIMATE SITES SINCE 2019.
CARIBOU RECEIVED 118.2 INCHES OF SNOWFALL IN THE 2025 CALENDAR YEAR,
WHICH IS RIGHT AROUND CLIMATOLOGICAL NORMAL. BANGOR ONLY RECEIVED
60.5 INCHES OF SNOW, WHICH IS ABOUT 14.1 INCHES BELOW THEIR
CLIMATOLOGICAL NORMAL.
THERE WERE A FEW MAXIMUM TEMPERATURE RECORDS THAT REACHED INTO THE
TOP 10 CATEGORY FOR CARIBOU, BANGOR, AND MILLINOCKET. FOR CARIBOU,
THE 3RD WARMEST RECORDED ANNUAL MAXIMUM TEMPERATURE OF 94F WAS
REACHED IN AUGUST. THIS YEAR, CARIBOU ALSO HAD THE 6TH WARMEST
MINIMUM TEMPERATURE OF 68F. BANGOR RECORDED ITS 4TH HIGHEST MAXIMUM
TEMPERATURE RECORD OF 98F IN AUGUST AS WELL. MILLINOCKET RECORDED
ITS 2ND HIGHEST MAXIMUM TEMPERATURE IN AUGUST AT 97F.
IN TERMS OF PRECIPITATION, THIS WAS THE 21ST DRIEST YEAR IN BANGOR,
RECEIVING 36.08 INCHES OF PRECIPITATION, COMPARED TO THE
CLIMATOLOGICAL NORMAL 41.71 INCHES. CARIBOU OBSERVED 39.03 INCHES OF
PRECIPITATION, COMPARED TO THE CLIMATOLOGICAL NORMAL OF 40.7 INCHES.
JANUARY TEMPERATURES WERE SLIGHTLY ABOVE AVERAGE, WITH BELOW AVERAGE
PRECIPITATION AND SNOWFALL. THERE WAS 17.2 INCHES OF SNOW IN
CARIBOU, WHICH IS A 7.8 INCH DEVIATION FROM NORMAL. THE MAXIMUM SNOW
DEPTH FOR CARIBOU WAS ONLY 5 INCHES, BEATING THE PREVIOUS 6 INCHES
RECORDED IN 1992. THERE WAS 10.1 INCHES OF SNOW IN BANGOR, WHICH IS
ABOUT 8.5 INCH DEVIATION FROM NORMAL. THERE WAS A WINTER STORM
JANUARY 1ST-3RD, THAT PRODUCED 6-12 INCHES OF SNOW IN THE NORTH
WOODS. THERE WAS ALSO ANOTHER STORM THAT PRODUCED 6-10 INCHES ALONG
THE DOWNEAST COAST ON DECEMBER 19TH-20TH. THE BELOW AVERAGE SNOWFALL
DID NEGATIVELY IMPACT THE WINTER RECREATIONAL SEASON. IN TERMS OF
DROUGHT, THERE WAS ABNORMALLY DRY (D0) CONDITIONS IN THE CENTRAL
HIGHLANDS TO SOUTHERN AROOSTOOK COUNTY, NORTHWARDS, ENDING AT THE
ST. JOHN VALLEY. THERE WAS MODERATE DROUGHT (D1) CONDITIONS
SOUTHWARDS, INCLUDING THE DOWNEAST COAST. 4 SNOW SQUALL WARNINGS
WERE ISSUED IN JANUARY.
TEMPERATURES IN FEBRUARY WERE AROUND, TO SLIGHTLY BELOW, AVERAGE.
THERE WAS ABOVE AVERAGE PRECIPITATION AND SNOWFALL. CARIBOU HAD 35.5
INCHES OF SNOW, WHICH WAS 10 INCHES ABOVE NORMAL. BANGOR SAW 21.3
INCHES OF SNOWFALL IN THE MONTH, WHICH IS ABOUT 3.8 INCHES HIGHER
THAN AVERAGE. DESPITE THIS ABOVE NORMAL PRECIPITATION, DROUGHT
CONDITIONS FROM JANUARY PERSISTED THROUGHOUT FEBRUARY. TWO
SIGNIFICANT SNOW SYSTEMS OCCURRED, ONE OF THE 13TH, AND ONE ON THE
16TH-17TH,WHERE BOTH EVENTS RECORDED OVER 10 INCHES OF SNOW FELL IN
THE KATAHDIN AREA, AND MIXED WINTRY PRECIP FELL IN BANGOR AND
DOWNEAST. 3 SNOW SQUALL WARNINGS WERE ISSUED IN FEBRUARY.
IN MARCH, OBSERVED TEMPERATURES WERE ABOVE AVERAGE, WITH ABOVE
AVERAGE PRECIPITATION. SNOWFALL TOTALS WERE AROUND CLIMATOLOGICAL
NORMAL IN THE NORTH, AND BELOW NORMAL IN THE SOUTH. CARIBOU REPORTED
22.4 INCHES OF SNOW, ABOUT 1 INCH ABOVE NORMAL. BANGOR, HOWEVER,
ONLY REPORTED 7.7 INCHES OF SNOW, WHICH IS 7.5 INCHES BELOW NORMAL.
THE MOST SIGNIFICANT SNOWFALL EVENT IN THE NORTH OCCURRED FROM THE
5TH-7TH, WHERE A FEW INCHES OF SNOW FELL IN THE NORTH, TRANSITIONED
TO RAIN, AND THEN 6 -11 INCHES OF SNOW FELL IN THE CENTRAL HIGHLANDS
REGION. SIGNIFICANT BLOWING AND DRIFTING SNOW OCCURRED DURING THIS
EVENT, HEAVILY IMPACTING TRAVEL. THERE WAS ALSO A SIGNIFICANT WARM
UP PERIOD IN THE MIDDLE OF THE MONTH, RESULTING IN SOME ICE JAM
FLOODING ALONG THE AROOSTOOK RIVER. SNOWMELT FROM THE WARM UP PERIOD
NEGATIVELY IMPACTED WINTER RECREATION IN NORTHERN MAINE. GREEN UP,
OR WHEN SNOW MELTS AND VEGETATION BEGINS TO GROW, OCCURRED EARLIER
THAN CLIMATOLOGICALLY NORMAL. DROUGHT CONDITIONS IMPROVED WITH THE
SNOWMELT AND RAIN, HOWEVER, AS CONDITIONS UPGRADED FROM MODERATE
DROUGHT (D1)/ABNORMALLY DRY CONDITIONS (D0), TO MOSTLY ABNORMALLY
DRY CONDITIONS (D0)/NO DROUGHT. ONLY COASTAL HANCOCK AND WASHINGTON
COUNTIES, ALONG WITH MOST OF PISCATAQUIS COUNTY AND PORTIONS OF THE
NORTH WOODS, HAD ABNORMALLY DRY (D0) CONDITIONS.
TEMPERATURES IN APRIL WERE AROUND, TO SLIGHTLY ABOVE, CLIMATOLOGICAL
NORMAL, WITH ABOVE NORMAL PRECIPITATION. SNOWFALL TOTALS BEGAN TO
DWINDLE IN APRIL, AS SPRING BEGAN TO APPROACH THE NORTHEAST REGION.
CARIBOU REPORTED 8.7 INCHES OF SNOW, WHICH IS 0.4 INCHES ABOVE
NORMAL. BANGOR, HOWEVER, ONLY RECORDED AN INCH OF SNOW, WHICH IS 2.7
INCHES BELOW NORMAL. APRIL WAS THE LAST MONTH FOR ACCUMULATING
SNOWFALL FOR THE 2024-2025 WINTER SEASON. ICE ALONG THE RIVERS WAS
ALL BROKEN UP AND MOVED OUT BY THE END OF MONTH AS WELL, WITH ONLY A
FEW LAKES STILL HAVING SOME LEFTOVER ICE. BY THE END OF APRIL, ALL
OF NORTHERN AND EASTERN MAINE WAS OUT OF DROUGHT CONDITIONS.
IN MAY THERE WAS AROUND, TO SLIGHTLY ABOVE, AVERAGE TEMPERATURES,
AND WARMER THAN AVERAGE MINIMUM TEMPERATURES. FOR THE FIRST TIME
SINCE 2017, THERE WAS NO RECORDED FREEZE IN BANGOR. THERE WAS ALSO
SIGNIFICANTLY ABOVE AVERAGE PRECIPITATION. THIS WAS THE 10TH WETTEST
MAY FOR CARIBOU, RECEIVING 5.04 INCHES OF PRECIPITATION, AND THE 6TH
WETTEST MAY FOR BANGOR, RECEIVING 5.44 INCHES OF PRECIPITATION.
THERE WAS 1 SEVERE THUNDERSTORM WARNING ISSUED IN MAY.
THERE WERE AROUND AVERAGE TEMPERATURES RECORDED IN JUNE, AND
SIGNIFICANTLY BELOW AVERAGE PRECIPITATION FOR NORTHERN AND EASTERN
MAINE. THERE WAS A SIGNIFICANT HEAT WAVE EVENT ACROSS THE NORTHEAST
ON JUNE 24TH, BREAKING MULTIPLE DAILY MAXIMUM TEMPERATURE RECORDS
ACROSS NEW ENGLAND. BANGOR REACHED 98F, WHICH BROKE THE PREVIOUS
93F DAILY RECORD FROM 1995. THIS 98F ALSO TIED FOR MONTHLY RECORD
HIGH IN FOR JUNE, WITH 1941. HOULTON TIED WITH THE PREVIOUS RECORD
FROM 1995 AT 92F. CARIBOU REACHED 90F AND MILLINOCKET REACHED
94F, JUST A FEW DEGREES BELOW THEIR PREVIOUS RECORDS FROM 1995, AND
1912, RESPECTIVELY. HEAT INDEXES FOR THE DAY GENERALLY RANGED FROM
95-106F DURING THIS EVENT. THERE WERE 7 SEVERE THUNDERSTORM
WARNINGS ISSUED IN JUNE.
IN JULY, ABOVE AVERAGE TEMPERATURES WERE OBSERVED AT ALL CLIMATE
SITES. THERE WAS NEAR AVERAGE PRECIPITATION IN NORTHERN MAINE, BUT
SIGNIFICANTLY BELOW AVERAGE PRECIPITATION IN CENTRAL AND SOUTHERN
MAINE. THIS IS THE 4TH DRIEST JULY ON RECORD FOR BANGOR, SINCE 1926.
NO DROUGHT WAS RECORDED YET IN JULY. THERE WERE 29 SEVERE
THUNDERSTORM WARNINGS ISSUED IN JULY.
AUGUST RECORDED AROUND, TO SLIGHTLY BELOW, AVERAGE TEMPERATURES FOR
NORTHERN AND EASTERN MAINE, WITH ABOVE NORMAL MAXIMUM TEMPERATURES.
THERE WAS A SIGNIFICANT HEAT WAVE THAT OCCURRED AUGUST 10TH-13TH,
THAT BROKE MULTIPLE DAILY HIGH RECORDS. CARIBOU REACHED 94F ON THE
11TH-13TH, BREAKING DAILY HIGH TEMPERATURES FROM 2020, 1944, AND
2021. MILLINOCKET REACHED 97F ON AUGUST 11TH, AND 96F ON THE 12TH,
BREAKING THE PREVIOUS DAILY HIGH RECORDS IN 1944. IT ALSO RECORDED
95F ON THE 13TH, TYING WITH THE PREVIOUS DAILY HIGH TEMPERATURE
RECORD FROM 1947 AND 2002. THERE WAS BELOW AVERAGE PRECIPITATION IN
AUGUST AS WELL, LEADING TO DEGRADING DROUGHT CONDITIONS. IT BEGAN AS
ABNORMALLY DRY (D0) CONDITIONS IN COASTAL HANCOCK AND WASHINGTON
COUNTIES ON AUGUST 5TH, WHICH QUICKLY EXPANDED THROUGHOUT THE MONTH.
ABNORMALLY DRY (D0) CONDITIONS WERE EXTENDED UP TO SOUTHERN/EASTERN
AROOSTOOK, NORTHERN PENOBSCOT, AND NORTH/CENTRAL PISCATAQUIS. THERE
WAS MODERATE DROUGHT (D1) IN INTERIOR DOWNEAST AND SOUTHERN
PISCATAQUIS. DOWNEAST DEGRADED TO SEVERE DROUGHT (D2). REPORTS OF
CROPS DYING BEGAN TO OCCUR IN AUGUST, ESPECIALLY IN AROOSTOOK AND
WASHINGTON COUNTIES. THERE WERE 4 SEVERE THUNDERSTORM WARNINGS
ISSUED IN AUGUST.
IN SEPTEMBER, THERE WERE AVERAGE TEMPERATURES THROUGHOUT NORTHERN
AND EASTERN MAINE. DROUGHT CONDITIONS EXPANDED THROUGHOUT THE
STATE, WITH SIGNIFICANTLY BELOW AVERAGE PRECIPITATION DEFICITS AT
ALL CLIMATE SITES. BY THE END OF SEPTEMBER, ABNORMALLY DRY (D0)
CONDITIONS EXPANDED INTO THE NORTH WOODS AND REMAINED IN NORTHERN
PISCATAQUIS, PENOBSCOT, SOMERSET AND EASTERN AROOSTOOK. MODERATE
DROUGHT (D1) CONDITIONS WERE IN SOUTHERN AROOSTOOK, CENTRAL
PISCATAQUIS AND PENOBSCOT. SEVERE DROUGHT (D2) EXTENDED THROUGH
CENTRAL MAINE IN THE PENOBSCOT REGION, INTERIOR DOWNEAST, AND
WASHINGTON COUNTYS COASTAL AREA. LASTLY, HANCOCK COUNTYS COASTLINE
UPGRADED TO EXTREME DROUGHT (D3) CONDITIONS BY THE END OF THE MONTH.
THERE WERE MANY DRY WELL REPORTS, AS WELL AS SOME LOCATIONS
OBSERVING TREES LOSE THEIR LEAVES EARLIER THAN NORMAL. NO
SIGNIFICANT SEVERE WEATHER EVENTS OCCURRED IN SEPTEMBER.
THERE WERE ABOVE CLIMATOLOGICAL NORMAL VALUES FOR DAILY MAXIMUM,
MINIMUM, AND AVERAGE TEMPERATURES IN OCTOBER. CARIBOU BROKE ITS ALL-
TIME HIGH TEMPERATURE RECORD FOR THE MONTH OF OCTOBER, 83F, DURING
A HEAT EVENT ON OCTOBER 6TH. PRECIPITATION TOTALS FOR NORTHERN AND
EASTERN MAINE WERE BELOW AVERAGE THROUGHOUT THE MONTH. DROUGHT
CONDITIONS CONTINUED, AND DETERIORATED, THROUGHOUT THE STATE DURING
OCTOBER, NEGATIVELY IMPACTING AGRICULTURE AND CONTINUING TO DRY UP
WELLS. PORTIONS OF NORTHERN SOMERSET, NORTHWESTERN AROOSTOOK,
CENTRAL AROOSTOOK AND NORTHERN PENOBSCOT, DETERIORATED TO MODERATE
DROUGHT (D1). CENTRAL AND SOUTHERN AROOSTOOK, NORTHERN AND CENTRAL
PENOBSCOT, PISCATAQUIS, AND PORTIONS OF NORTHERN SOMERSET ALL
BECAME, OR MAINTAINED, SEVERE DROUGHT (D2). NO SIGNIFICANT SEVERE
WEATHER EVENTS OCCURRED IN OCTOBER.
DURING NOVEMBER, THERE WERE BELOW CLIMATOLOGICAL NORMAL VALUES
RECORDED FOR DAILY MAXIMUM TEMPERATURES, SNOWFALL, AND
PRECIPITATION. DAILY MINIMUM TEMPERATURES WERE ABOVE NORMAL. DROUGHT
CONDITIONS PERSISTED, CONTINUING TO DRY UP WELLS THROUGHOUT THE
STATE. THAT BEING SAID, PORTIONS OF CENTRAL AND DOWNEAST MAINE HAD
DROUGHT IMPROVEMENT. BY THE END OF THE MONTH, NORTHERN SOMERSET,
NORTHWESTERN AND CENTRAL AROOSTOOK, NORTHERN PISCATAQUIS, BANGOR
REGION, AND PORTIONS OF HANCOCK AND WASHINGTON COUNTIES, WERE
INCLUDED IN SEVERE DROUGHT (D2). OVERALL, DROUGHT CONDITIONS
DETERIORATED IN THE CROWN OF MAINE, BUT THE REST OF NORTHERN,
CENTRAL, AND DOWNEAST MAINE IMPROVED. THERE WAS SOME IMPROVEMENT IN
LAKE, POND, RIVER AND STREAM LEVELS. NO SIGNIFICANT SEVERE WEATHER
EVENTS OCCURRED IN NOVEMBER.
LASTLY, IN DECEMBER, OBSERVED TEMPERATURES WERE OVERALL BELOW
CLIMATOLOGICAL NORMAL FOR DAILY MAXIMUM, MINIMUM, AND AVERAGE DAILY
TEMPERATURES. AROUND, TO SLIGHTLY BELOW, AVERAGE PRECIPITATION FELL
AT ALL CLIMATE SITES. DROUGHT CONDITIONS PERSISTED IN NORTHERN AND
CENTRAL MAINE, AS FROST DEPTH CONTINUED TO INCREASE THIS MONTH,
RESTRICTING ANY MOISTURE TO PENETRATE THE SOIL. PORTIONS OF
WASHINGTON COUNTY DID HAVE SOME DROUGHT CONDITIONS IMPROVE BY THE
END OF THE MONTH, AS SNOW/RAINFALL ADDED SOME MOISTURE, RESULTING IN
THE COUNTY IMPROVING FROM SEVERE DROUGHT (D2) TO MODERATE DROUGHT
(D1). IN TERMS OF SNOWFALL, HOWEVER, THERE WAS MORE SNOW THAN NORMAL
AT BANGOR, BUT BELOW NORMAL SNOWFALL FOR CARIBOU. THERE WERE
MULTIPLE SNOWSTORMS IN DECEMBER THROUGHOUT NORTHERN AND EASTERN
MAINE AS WELL, ADDING ENOUGH SNOW TO PROVIDE A SNOW PACK DEEP ENOUGH
TO BEGIN THE SKI AND SNOWMOBILING SEASON, PRIMARILY IN THE NORTH AND
CENTRAL REGION. ANOTHER SIGNIFICANT WEATHER EVENT THAT OCCURRED IN
DECEMBER, WAS A HIGH WIND EVENT THAT RESULTED IN MULTIPLE POWER
OUTAGES, DOWNED TREES, AND ROAD CLOSURES, PRIMARILY IN DOWNEAST
MAINE. HIGHEST WIND GUSTS WERE IN PENOBSCOT COUNTY, WITH A 67 MPH
GUSTS RECORDED IN MILLINOCKET. 2 SNOW SQUALL WARNINGS WERE ISSUED IN
DECEMBER.
$$
ASB