Climatological Report (Daily)
Issued by NWS
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CDUS45 KTFX 170735
CLIGTF
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
135 AM MDT WED SEP 17 2025
...................................
...THE GREAT FALLS MT CLIMATE SUMMARY FOR SEPTEMBER 16 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
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 72 304 PM 91 2009 72 0 74
MINIMUM 50 1154 PM 27 1965 43 7 43
AVERAGE 61 57 4 59
PRECIPITATION (IN)
YESTERDAY T 0.74 1959 0.05 -0.05 0.00
MONTH TO DATE 0.26 0.73 -0.47 1.07
SINCE OCT 1 11.39 14.16 -2.77 14.12
SINCE JAN 1 10.31 11.88 -1.57 12.02
SNOWFALL (IN)
YESTERDAY 0.0 1.3 2006 0.0 0.0 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 0.0 0.4 -0.4 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 4 8 -4 6
MONTH TO DATE 39 104 -65 50
SINCE SEP 1 39 104 -65 50
SINCE JUL 1 82 218 -136 101
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 26 20 6 43
SINCE SEP 1 26 20 6 43
SINCE JAN 1 325 303 22 367
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 5.3
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 200 AM
LOWEST 47 500 PM
AVERAGE 74
..........................................................
THE GREAT FALLS MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 92 2009
MINIMUM TEMPERATURE (F) 43 26 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.
$$