116
CDUS45 KBYZ 131038
CLIBIL
CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
338 AM MST SAT DEC 13 2025
...............................
..THE BILLINGS MT CLIMATE SUMMARY FOR DECEMBER 12 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 13 1206 AM 57 1988 36 -23 41
2017
MINIMUM 4 1118 AM -11 2000 20 -16 22
AVERAGE 9 28 -19 32
PRECIPITATION (IN)
YESTERDAY 0.72R 0.29 1946 0.02 0.70 0.00
1958
MONTH TO DATE 1.28 0.22 1.06 T
SINCE OCT 1 3.77 2.19 1.58 0.80
SINCE JAN 1 18.17 13.96 4.21 11.46
SNOWFALL (IN)
YESTERDAY 8.8 R 4.7 1946 0.3 8.5 0.0
MONTH TO DATE 14.1 3.4 10.7 T
SINCE DEC 1 14.1 3.4 10.7 T
SINCE JUL 1 21.1 14.7 6.4 3.9
SNOW DEPTH 7
DEGREE DAYS
HEATING
YESTERDAY 56 37 19 33
MONTH TO DATE 388 428 -40 329
SINCE DEC 1 388 428 -40 329
SINCE JUL 1 1617 2030 -413 1601
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 16 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 7.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY SNOW
SNOW
LIGHT SNOW
FOG
FOG W/VISIBILITY <= 1/4 MILE
BLOWING SNOW
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 1200 AM
LOWEST 87 700 AM
AVERAGE 90
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THE BILLINGS MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 36 60 2014
MINIMUM TEMPERATURE (F) 19 -16 1963
SUNRISE AND SUNSET
DECEMBER 13 2025......SUNRISE 747 AM MST SUNSET 430 PM MST
DECEMBER 14 2025......SUNRISE 748 AM MST SUNSET 430 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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