Climatological Report (Monthly)
Issued by NWS Billings, MT
Issued by NWS Billings, MT
117
CXUS55 KBYZ 011153
CLMMLS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
451 AM MST THU JAN 01 2026
...................................
...THE MILES CITY MT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1937 TO 2025
WEATHER OBSERVED NORMAL DEPART
VALUE DATE(S) VALUE FROM
NORMAL
................................................
TEMPERATURE (F)
HIGHEST 59 12/19
LOWEST -5 12/01
AVG. MAXIMUM 38.2 33.1 5.1
AVG. MINIMUM 16.8 11.7 5.1
MEAN 27.5 22.4 5.1
DAYS MAX >= 90 0
DAYS MAX <= 32 7
DAYS MIN <= 32 30
DAYS MIN <= 0 4
PRECIPITATION (INCHES)
TOTALS 0.59 0.22 0.37
DAYS >= .01 7
DAYS >= .10 3
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.19 12/10 TO 12/11
DEGREE DAYS
HEATING TOTAL 1154 1320 -166
SINCE 7/1 2524 3079 -555
COOLING TOTAL 0 0 0
SINCE 1/1 805 731 74
................................................
WIND (MPH)
AVERAGE WIND SPEED 9.4
HIGHEST WIND SPEED/DIRECTION 56/290 DATE 12/17
HIGHEST GUST SPEED/DIRECTION 79/290 DATE 12/17
AVERAGE RH (PERCENT) 78
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 1
HEAVY RAIN 0 RAIN 0
LIGHT RAIN 10 FREEZING RAIN 1
LT FREEZING RAIN 1 HAIL 0
HEAVY SNOW 0 SNOW 1
LIGHT SNOW 13 SLEET 0
FOG 18 FOG W/VIS <= 1/4 MILE 2
HAZE 2
- 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 MILES CITY...
BELOW IS A SUMMARY OF THE TEMPERATURE AND PRECIPITATION
STATISTICS FOR MILES CITY 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 FEBRUARY 1937 AT THE MILES CITY AIRPORT.
NUMBERS DENOTED WITH AN * IS MISSING DATA IN THE CALCULATION.
...MILES CITY MONTHLY PRECIPITATION...
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
DECEMBER 0.59 0.22 +0.37 20TH WETTEST OUT OF 88 YEARS
(RECORD WETTEST WAS 1.78 IN 1968)
(WETTEST SINCE 0.71 IN 2024)
...MILES CITY DECEMBER 2025 BROKEN OR TIED DAILY PRECIPITATION RECORDS...
0.15 ON DECEMBER 10 (OLD RECORD 0.08 IN 1995)
NOTE: SINCE THE LATE 1990S...MILES CITY BECAME AN AUTOMATED AND UNATTENDED
WEATHER STATION. PRECIPITATION AMOUNTS IN THE WINTER MAY BE UNDERESTIMATED.
...MILES CITY AVERAGE TEMPERATURES...
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
DECEMBER 27.5 22.4 +5.1 19TH WARMEST OUT OF 88 YEARS
(RECORD WARMEST WAS 33.3 IN 1957)
(WARMEST SINCE 28.7 IN 2024)
...MILES CITY AVERAGE HIGH TEMPERATURES...
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
DECEMBER 38.2 33.1 +5.1 21ST WARMEST OUT OF 88 YEARS
(RECORD WARMEST WAS 45.0 IN 1957)
(WARMEST SINCE 38.5 IN 2024)
...MILES CITY DECEMBER 2025 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...
NONE
...MILES CITY DECEMBER 2025 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...
NONE
...MILES CITY AVERAGE LOW TEMPERATURES...
MONTH 2025 VALUES NORMALS DEPARTURE RANKING
DECEMBER 16.8 11.7 +5.1 22ND WARMEST OUT OF 88 YEARS
(RECORD WARMEST WAS 22.4 IN 1999)
(WARMEST SINCE 18.8 IN 2024)
...MILES CITY DECEMBER 2025 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...
NONE
...MILES CITY DECEMBER 2025 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...
NONE
$$