Climatological Report (Monthly)
Issued by NWS Caribou, ME
Issued by NWS Caribou, ME
087
CXUS51 KCAR 020514
CLMCAR
CLIMATE REPORT
NATIONAL WEATHER SERVICE CARIBOU ME
1214 AM EST MON NOV 02 2026
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...THE CARIBOU ME CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2026...
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
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TEMPERATURE (F)
RECORD
HIGH 83 10/06/2025
LOW 14 10/19/1972
10/22/1940
HIGHEST 76 10/01 MM MM 83 10/06
LOWEST 21 10/18 MM MM 26 10/29
AVG. MAXIMUM 54.2 53.2 1.0 58.1
AVG. MINIMUM 31.5 35.9 -4.4 37.8
MEAN 42.8 44.5 -1.7 48.0
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 0.1 -0.1 0
DAYS MIN <= 32 21 12.4 8.6 7
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 8.73 1990
MINIMUM 0.63 1955
TOTALS 2.58 -1.41
DAILY AVG. 0.08 0.13 -0.05 0.11
DAYS >= .01 10 13.5 -3.5 9
DAYS >= .10 5 7.9 -2.9 4
DAYS >= .50 2 2.6 -0.6 3
DAYS >= 1.00 0 0.9 -0.9 1
GREATEST
24 HR. TOTAL 0.84 10/13 TO 10/14 1.39 10/31 TO 10/31
SNOWFALL (INCHES)
RECORDS
TOTAL 12.1 1963
TOTALS 0.6 1.7 -1.1 0.0
SINCE 7/1 0.6 1.8 -1.2 MM
SNOWDEPTH AVG. 0 0
DAYS >= 1.0 0 0.4 -0.4 0
GREATEST
SNOW DEPTH 0 0 MM
24 HR TOTAL MM MM
DEGREE DAYS
HEATING TOTAL 678 634 44 527
SINCE 7/1 1040 1016 24 MM
COOLING TOTAL 0 0 0 7
SINCE 1/1 200 224 -24 MM
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WIND (MPH)
AVERAGE WIND SPEED 6.8
HIGHEST WIND SPEED/DIRECTION 24/250 DATE 10/06
HIGHEST GUST SPEED/DIRECTION 42/270 DATE 10/06
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.36
NUMBER OF DAYS FAIR 16
NUMBER OF DAYS PC 12
NUMBER OF DAYS CLOUDY 3
AVERAGE RH (PERCENT) 70
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 6
LIGHT RAIN 15 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 1
LIGHT SNOW 2 SLEET 0
FOG 10 FOG W/VIS <= 1/4 MILE 0
HAZE 0
- INDICATES NEGATIVE NUMBERS.
* INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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...OCTOBER 2026 CLIMATE NARRATIVE FOR NORTHERN/EASTERN MAINE...
Month Trends:
Caribou:
- Mean maximum temperatures were 1.0 degree above average.
- Mean minimum temperatures were 4.4 degrees below average. This October had the 7th coldest mean minimum monthly temperatures on record.
- Average temperatures were 1.7 degrees below average.
- Precipitation was 1.41 inches below average.
- Snowfall was 1.1 inches below average.
Bangor:
- Mean maximum temperatures were 1.2 degrees above average.
- Mean minimum temperatures were around 3.9 degrees below average.
- Average temperatures were around 1.3 degrees below average.
- Precipitation was 2.48 inches below average.
Millinocket:
- Mean maximum temperatures were 1.1 degrees above average.
- Mean minimum temperatures were 3.2 degrees below normal. This October, the record for the 7th
coldest monthly max low temperatures was tied, at 47 degrees.
- Average temperatures were 1.0 degree below average.
- Precipitation was 2.48 inches below average.
Houlton:
- Mean maximum temperatures were 1.4 degrees above average.
- Mean minimum temperatures were 4.5 degrees below average. This October, the record for the 5th coldest monthly max low temperatures was tied, at 45 degrees. The record for the 4th coldest monthly average low temperatures in October was reached, at 29.5 degrees.
- Average temperatures were 1.6 degrees below average.
- Precipitation was 2.04 inches below average.
Weather Events:
- The frost/freeze program began in May, with northern zones ending in September. The program ended on October 1st for the Bangor region. The rest of the Downeast region ended on October 11th. There were 3 frost advisories issued in October.
- The first snowflakes of the season fell on October 13th, in far northern Aroostook.
- On October 5th, there were some sub-severe thunderstorms that moved through northern and eastern Maine that produced some pea-to-penny sized hail.
- There was 1 wind advisory issued in October. The highest wind gusts was recorded in Saint Agatha, at 54mph.
- The ongoing drought deteriorated throughout October. By the end of September, coastal Hancock county was in Extreme Drought (D3). Central Hancock and southwestern Penobscot counties were in Severe Drought (D2). The rest of Aroostook, northern Somerset, Piscataquis, central and northern Penobscot, northern Hancock, and Washington counties were all in Moderate Drought(D1). By October 6th, Severe Drought (D2) had expanded into northern/eastern Aroostook,
northern Somerset, northern/central Piscataquis, and northern Penobscot counties. On October 27th, Severe Drought (D2) expanded south into southern Piscataquis county. The state maintained these conditions through the end of the month.
Climate Outlook:
- Temperatures: For November, Climate Prediction Center (CPC) is predicting temperatures leaning above normal for northern and eastern Maine. For the season ahead, the outlook shows temperatures could be likely above climatological normal.
- Precipitation: For November, CPC does not see strong signals for anomalous precipitation for northern and eastern Maine. For the season ahead, the outlook shows precipitation along the Downeast region leaning above normal.
- ENSO: Per CPC, El Nino conditions are present, with an El Nino Advisory in effect. El Nino has an above 83 percent chance of becoming a strong-to-very strong event in the northern hemisphere
2026-2027 fall/winter.
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ASB