417
CDUS45 KBYZ 212240
CLIBIL
CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
440 PM MDT SUN SEP 21 2025
...............................
..THE BILLINGS MT CLIMATE SUMMARY FOR SEPTEMBER 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 87 259 PM 91 1938 72 15 60
MINIMUM 57 311 AM 28 1995 47 10 43
AVERAGE 72 59 13 52
PRECIPITATION (IN)
TODAY 0.00 0.67 1991 0.05 -0.05 0.00
MONTH TO DATE 0.71 0.91 -0.20 1.72
SINCE OCT 1 15.47 13.86 1.61 13.05
SINCE JAN 1 14.17 11.32 2.85 10.66
SNOWFALL (IN)
TODAY MM 0.5 2000 0.0 MM 0.0
MONTH TO DATE 0.0 0.1 -0.1 0.0
SINCE SEP 1 0.0 0.1 -0.1 0.0
SINCE JUL 1 T 0.1 -0.1 T
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 0 7 -7 13
MONTH TO DATE 30 89 -59 35
SINCE SEP 1 30 89 -59 35
SINCE JUL 1 46 125 -79 49
COOLING
TODAY 7 1 6 0
MONTH TO DATE 60 54 6 82
SINCE SEP 1 60 54 6 82
SINCE JAN 1 645 649 -4 749
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 12.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 53 200 AM
LOWEST 15 200 PM
AVERAGE 34
......................................................
THE BILLINGS MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 91 1938
MINIMUM TEMPERATURE (F) 47 25 2000
SUNRISE AND SUNSET
SEPTEMBER 21 2025.....SUNRISE 700 AM MDT SUNSET 713 PM MDT
SEPTEMBER 22 2025.....SUNRISE 702 AM MDT SUNSET 711 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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