Climatological Report (Daily)
Issued by NWS
Issued by NWS
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944
CDUS45 KTFX 182240
CLIGTF
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
440 PM MDT MON AUG 18 2025
...................................
...THE GREAT FALLS MT CLIMATE SUMMARY FOR AUGUST 18 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.
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
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 89 258 PM 101 1964 83 6 95
MINIMUM 48 404 AM 40 1987 50 -2 50
AVERAGE 69 66 3 73
PRECIPITATION (IN)
TODAY 0.00 1.58 1990 0.04 -0.04 T
MONTH TO DATE 0.42 0.65 -0.23 0.44
SINCE OCT 1 10.94 12.86 -1.92 12.83
SINCE JAN 1 9.86 10.58 -0.72 10.73
DEGREE DAYS
HEATING
TODAY 0 2 -2 0
MONTH TO DATE 9 24 -15 15
SINCE JUN 1 182 265 -83 225
SINCE JUL 1 39 72 -33 33
COOLING
TODAY 4 4 0 8
MONTH TO DATE 78 88 -10 73
SINCE JUN 1 241 248 -7 288
SINCE JAN 1 255 251 4 288
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 4.1
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 400 AM
LOWEST 21 300 PM
AVERAGE 57
..........................................................
THE GREAT FALLS MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 97 1942
1967
MINIMUM TEMPERATURE (F) 50 40 1913
1973
2005
SUNRISE AND SUNSET
AUGUST 18 2025........SUNRISE 626 AM MDT SUNSET 831 PM MDT
AUGUST 19 2025........SUNRISE 627 AM MDT SUNSET 830 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$