288
CDUS45 KBYZ 212337
CLIBIL
CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
437 PM MST SUN DEC 21 2025
...............................
..THE BILLINGS MT CLIMATE SUMMARY FOR DECEMBER 21 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 36 1258 PM 58 2024 35 1 58
MINIMUM 25 333 AM -26 1989 18 7 36
1990
AVERAGE 31 26 5 47
PRECIPITATION (IN)
TODAY T 0.55 1966 0.02 -0.02 0.00
MONTH TO DATE 1.28 0.38 0.90 0.25
SINCE OCT 1 3.77 2.35 1.42 1.05
SINCE JAN 1 18.17 14.12 4.05 11.71
SNOWFALL (IN)
TODAY MM 4.7 1966 0.3 MM 0.0
MONTH TO DATE 14.1 6.2 7.9 T
SINCE DEC 1 14.1 6.2 7.9 T
SINCE JUL 1 21.1 17.5 3.6 3.9
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 34 38 -4 18
MONTH TO DATE 648 769 -121 586
SINCE DEC 1 648 769 -121 586
SINCE JUL 1 1877 2371 -494 1858
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 14 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 7.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
LIGHT SNOW
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85 400 PM
LOWEST 49 900 AM
AVERAGE 67
......................................................
THE BILLINGS MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 35 60 1954
MINIMUM TEMPERATURE (F) 18 -26 1989
1990
SUNRISE AND SUNSET
DECEMBER 21 2025......SUNRISE 752 AM MST SUNSET 432 PM MST
DECEMBER 22 2025......SUNRISE 753 AM MST SUNSET 433 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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