171
CDUS45 KTFX 172240
CLIGTF
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
440 PM MDT WED SEP 17 2025
...............................
..THE GREAT FALLS MT CLIMATE SUMMARY FOR SEPTEMBER 17 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 77 235 PM 92 2009 71 6 71
MINIMUM 44 623 AM 26 1965 43 1 45
AVERAGE 61 57 4 58
PRECIPITATION (IN)
TODAY 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
DEGREE DAYS
HEATING
TODAY 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
TODAY 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
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SE (140)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SE (150)
AVERAGE WIND SPEED 6.0
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 600 AM
LOWEST 30 300 PM
AVERAGE 65
......................................................
THE GREAT FALLS MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 93 1981
MINIMUM TEMPERATURE (F) 42 23 1965
SUNRISE AND SUNSET
SEPTEMBER 17 2025.....SUNRISE 706 AM MDT SUNSET 733 PM MDT
SEPTEMBER 18 2025.....SUNRISE 707 AM MDT SUNSET 731 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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