816
CDUS45 KBYZ 201031
CLIBIL
CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
331 AM MST SAT DEC 20 2025
...............................
..THE BILLINGS MT CLIMATE SUMMARY FOR DECEMBER 19 2025
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)
YESTERDAY
MAXIMUM 54 108 PM 60 1979 35 19 45
MINIMUM 29 1159 PM -20 1990 18 11 24
AVERAGE 42 27 15 35
PRECIPITATION (IN)
YESTERDAY T 0.18 1967 0.02 -0.02 0.00
MONTH TO DATE 1.28 0.34 0.94 0.25
SINCE OCT 1 3.77 2.31 1.46 1.05
SINCE JAN 1 18.17 14.08 4.09 11.71
SNOWFALL (IN)
YESTERDAY 0.0 4.0 2013 0.4 -0.4 0.0
MONTH TO DATE 14.1 5.6 8.5 T
SINCE DEC 1 14.1 5.6 8.5 T
SINCE JUL 1 21.1 16.9 4.2 3.9
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 23 38 -15 30
MONTH TO DATE 583 693 -110 543
SINCE DEC 1 583 693 -110 543
SINCE JUL 1 1812 2295 -483 1815
COOLING
YESTERDAY 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 (320)
HIGHEST GUST SPEED 50 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 21.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 61 900 PM
LOWEST 26 700 PM
AVERAGE 44
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THE BILLINGS MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 35 58 1941
2024
MINIMUM TEMPERATURE (F) 18 -22 1990
SUNRISE AND SUNSET
DECEMBER 20 2025......SUNRISE 752 AM MST SUNSET 432 PM MST
DECEMBER 21 2025......SUNRISE 752 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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