115
CDUS45 KBYZ 152332
CLIBIL
CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
432 PM MST MON DEC 15 2025
...............................
..THE BILLINGS MT CLIMATE SUMMARY FOR DECEMBER 15 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 54 257 PM 69 1980 36 18 39
MINIMUM 38 841 AM -20 1964 19 19 29
AVERAGE 46 27 19 34
PRECIPITATION (IN)
TODAY 0.00 0.66 2016 0.02 -0.02 0.20
MONTH TO DATE 1.28 0.27 1.01 0.25
SINCE OCT 1 3.77 2.24 1.53 1.05
SINCE JAN 1 18.17 14.01 4.16 11.71
SNOWFALL (IN)
TODAY MM 11.0 2016 0.3 MM T
MONTH TO DATE 14.1 4.3 9.8 T
SINCE DEC 1 14.1 4.3 9.8 T
SINCE JUL 1 21.1 15.6 5.5 3.9
SNOW DEPTH 5
DEGREE DAYS
HEATING
TODAY 19 38 -19 31
MONTH TO DATE 498 541 -43 418
SINCE DEC 1 498 541 -43 418
SINCE JUL 1 1727 2143 -416 1690
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 23 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 16.7
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 48 900 AM
LOWEST 27 400 PM
AVERAGE 38
......................................................
THE BILLINGS MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 36 67 1980
MINIMUM TEMPERATURE (F) 19 -26 1964
SUNRISE AND SUNSET
DECEMBER 15 2025......SUNRISE 749 AM MST SUNSET 430 PM MST
DECEMBER 16 2025......SUNRISE 749 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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