187
CDUS45 KTFX 170754
CLIGTF
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
154 AM MDT THU SEP 17 2026
...............................
..THE GREAT FALLS MT CLIMATE SUMMARY FOR SEPTEMBER 16 2026
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1886 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
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TEMPERATURE (F)
YESTERDAY
MAXIMUM 64 343 PM 91 2009 72 -8 72
MINIMUM 40 331 AM 27 1965 43 -3 50
AVERAGE 52 57 -5 61
PRECIPITATION (IN)
YESTERDAY 0.00 0.74 1959 0.05 -0.05 T
MONTH TO DATE 0.96 0.73 0.23 0.26
SINCE OCT 1 16.76 14.16 2.60 11.39
SINCE JAN 1 14.92 11.88 3.04 10.31
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 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 13 8 5 4
MONTH TO DATE 104 104 0 39
SINCE SEP 1 104 104 0 39
SINCE JUL 1 166 218 -52 82
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 8 20 -12 26
SINCE SEP 1 8 20 -12 26
SINCE JAN 1 378 303 75 325
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WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SE (130)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 5.8
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 300 AM
LOWEST 48 400 PM
AVERAGE 74
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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 2026.....SUNRISE 706 AM MDT SUNSET 733 PM MDT
SEPTEMBER 18 2026.....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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