794
CDUS45 KBYZ 182340
CLIBIL
CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
440 PM MST THU DEC 18 2025
...............................
..THE BILLINGS MT CLIMATE SUMMARY FOR DECEMBER 18 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1934 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 39 259 PM 62 1979 35 4 53
MINIMUM 26 500 AM -19 1983 19 7 25
AVERAGE 33 27 6 39
PRECIPITATION (IN)
TODAY 0.00 0.46 1973 0.02 -0.02 0.00
MONTH TO DATE 1.28 0.32 0.96 0.25
SINCE OCT 1 3.77 2.29 1.48 1.05
SINCE JAN 1 18.17 14.06 4.11 11.71
SNOWFALL (IN)
TODAY 0.0 5.1 1973 0.3 -0.3 0.0
MONTH TO DATE 14.1 5.2 8.9 T
SINCE DEC 1 14.1 5.2 8.9 T
SINCE JUL 1 21.1 16.5 4.6 3.9
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 32 38 -6 26
MONTH TO DATE 562 655 -93 513
SINCE DEC 1 562 655 -93 513
SINCE JUL 1 1791 2257 -466 1785
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 659 662 -3 790
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 38 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 50 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 9.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 68 400 AM
LOWEST 32 1200 AM
AVERAGE 50
......................................................
THE BILLINGS MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 35 60 1979
MINIMUM TEMPERATURE (F) 18 -20 1990
SUNRISE AND SUNSET
DECEMBER 18 2025......SUNRISE 751 AM MST SUNSET 431 PM MST
DECEMBER 19 2025......SUNRISE 751 AM MST SUNSET 432 PM MST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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