792
CDUS45 KTFX 180732
CLIGTF
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
132 AM MDT THU SEP 18 2025
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..THE GREAT FALLS MT CLIMATE SUMMARY FOR SEPTEMBER 17 2025
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1886 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
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TEMPERATURE (F)
YESTERDAY
MAXIMUM 77 404 PM 92 2009 71 6 71
MINIMUM 44 623 AM 26 1965 43 1 45
AVERAGE 61 57 4 58
PRECIPITATION (IN)
YESTERDAY 0.00 1.09 1988 0.04 -0.04 0.04
1996
MONTH TO DATE 0.26 0.77 -0.51 1.11
SINCE OCT 1 11.39 14.20 -2.81 14.16
SINCE JAN 1 10.31 11.92 -1.61 12.06
SNOWFALL (IN)
YESTERDAY 0.0 4.5 1988 0.1 -0.1 0.0
MONTH TO DATE 0.0 0.2 -0.2 0.0
SINCE SEP 1 0.0 0.2 -0.2 0.0
SINCE JUL 1 0.0 0.5 -0.5 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 4 9 -5 7
MONTH TO DATE 43 113 -70 57
SINCE SEP 1 43 113 -70 57
SINCE JUL 1 86 227 -141 108
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 26 21 5 43
SINCE SEP 1 26 21 5 43
SINCE JAN 1 325 304 21 367
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WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SE (140)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SE (150)
AVERAGE WIND SPEED 5.8
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 600 AM
LOWEST 26 400 PM
AVERAGE 63
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THE GREAT FALLS MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 93 1981
MINIMUM TEMPERATURE (F) 42 23 1965
SUNRISE AND SUNSET
SEPTEMBER 18 2025.....SUNRISE 707 AM MDT SUNSET 731 PM MDT
SEPTEMBER 19 2025.....SUNRISE 709 AM MDT SUNSET 728 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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