518
CXUS55 KBYZ 011153
CLMBHK
CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
451 AM MST THU JAN 01 2026
...............................
..THE BAKER MT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2025
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1998 TO 2025
WEATHER OBSERVED NORMAL DEPART
VALUE DATE(S) VALUE FROM
NORMAL
............................................
TEMPERATURE (F)
HIGHEST 56 12/19
12/26
LOWEST -10 12/01
12/13
AVG. MAXIMUM 36.4 31.2 5.2
AVG. MINIMUM 12.9 10.2 2.7
MEAN 24.6 20.7 3.9
DAYS MAX >= 90 0
DAYS MAX <= 32 8
DAYS MIN <= 32 29
DAYS MIN <= 0 7
PRECIPITATION (INCHES)
TOTALS 1.07 0.18 0.89
DAYS >= .01 13
DAYS >= .10 2
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.42 12/10 TO 12/11
DEGREE DAYS
HEATING TOTAL 1243 1373 -130
SINCE 7/1 2824 3346 -522
COOLING TOTAL 0 0 0
SINCE 1/1 459 468 -9
............................................
WIND (MPH)
AVERAGE WIND SPEED 11.5
HIGHEST WIND SPEED/DIRECTION 54/280 DATE 12/17
HIGHEST GUST SPEED/DIRECTION 77/280 DATE 12/17
AVERAGE RH (PERCENT) 77
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 3
LIGHT RAIN 9 FREEZING RAIN 0
LT FREEZING RAIN 2 HAIL 0
HEAVY SNOW 1 SNOW 2
LIGHT SNOW 15 SLEET 0
FOG 18 FOG W/VIS <= 1/4 MILE 1
HAZE 4
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
THIS IS AN AUTOMATED...UNATTENDED WEATHER STATION AND MAY
UNDERESTIMATE WINTER PRECIPITATION.
..DECEMBER 2025 MONTH IN REVIEW FOR BAKER
BELOW IS A SUMMARY OF THE TEMPERATURE AND PRECIPITATION
STATISTICS FOR BAKER FOR DECEMBER 2025. ALL TEMPERATURES ARE IN
DEGREES FAHRENHEIT AND ALL PRECIPITATION AMOUNTS ARE IN INCHES. NORMALS
ARE 30 YEAR AVERAGES CALCULATED FROM 1991 TO 2020. MONTHLY RANKINGS
FOR PRECIPITATION AND TEMPERATURES USE A PERIOD
OF RECORD THAT STARTED IN MARCH 1998 AT OR NEAR THE BAKER AIRPORT.
NUMBERS DENOTED WITH AN * IS MISSING DATA IN THE CALCULATION.
.. MONTHLY PRECIPITATION
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
DECEMBER 1.07 0.18 +0.89 RECORD WETTEST OUT OF 28 YEARS
(OLD RECORD WETTEST WAS 0.53 IN 2002)
.. DECEMBER 2025 BROKEN OR TIED DAILY PRECIPITATION RECORDS
0.05 ON DECEMBER 2 (OLD RECORD 0.01 IN 2021)
0.09 ON DECEMBER 9 (OLD RECORD 0.06 IN 2004)
0.06 ON DECEMBER 10 (OLD RECORD 0.01 IN 2024)
0.36 ON DECEMBER 11 (OLD RECORD 0.04 IN 2008)
0.08 ON DECEMBER 12 (OLD RECORD 0.04 IN 2012)
0.10 ON DECEMBER 17 (OLD RECORD 0.05 IN 2024)
0.09 ON DECEMBER 22 (OLD RECORD 0.03 IN 1999)
NOTE: SINCE THE LATE 1990S...BAKER HAS BEEN AN AUTOMATED AND UNATTENDED
WEATHER STATION. PRECIPITATION AMOUNTS IN THE WINTER MAY BE UNDERESTIMATED.
.. AVERAGE TEMPERATURES
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
DECEMBER 24.7 20.7 +4.0 TIED FOR THE 11TH WARMEST OUT OF 28 YEARS
(RECORD WARMEST WAS 30.3 IN 2020)
(WARMEST SINCE 25.7 IN 2024)
.. AVERAGE HIGH TEMPERATURES
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
DECEMBER 36.4 31.2 +5.2 7TH WARMEST OUT OF 28 YEARS
(RECORD WARMEST WAS 42.4 IN 2023)
(WARMEST SINCE 36.7 IN 2024)
... DECEMBER 2025 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...
51 ON DECEMBER 16 (OLD RECORD 48 IN 2018)
56 ON DECEMBER 19 (OLD RECORD 51 IN 2020)
56 ON DECEMBER 26 (OLD RECORD 45 IN 2006)
49 ON DECEMBER 27 (OLD RECORD 45 IN 2024)
... DECEMBER 2025 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...
2 ON DECEMBER 28 (OLD RECORD 3 IN 2017)
.. AVERAGE LOW TEMPERATURES
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
DECEMBER 12.9 10.2 +2.7 12TH WARMEST OUT OF 28 YEARS
(RECORD WARMEST WAS 18.4 IN 2020)
(WARMEST SINCE 14.6 IN 2024)
... DECEMBER 2025 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...
33 ON DECEMBER 16 (OLD RECORD 30 IN 2002)
26 ON DECEMBER 26 (TIED RECORD IN 2005)
23 ON DECEMBER 30 (OLD RECORD 20 IN 2011)
... DECEMBER 2025 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...
NONE
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