573
CDUS45 KTFX 202240
CLIGTF
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
440 PM MDT SUN SEP 20 2026
...............................
..THE GREAT FALLS MT CLIMATE SUMMARY FOR SEPTEMBER 20 2026
VALID TODAY AS OF 0400 PM LOCAL TIME.
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
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 73 259 PM 93 1917 70 3 88
MINIMUM 44 541 AM 24 1995 42 2 45
AVERAGE 59 56 3 67
PRECIPITATION (IN)
TODAY 0.00 0.72 1968 0.04 -0.04 0.00
MONTH TO DATE 0.96 0.90 0.06 0.26
SINCE OCT 1 16.76 14.33 2.43 11.39
SINCE JAN 1 14.92 12.05 2.87 10.31
DEGREE DAYS
HEATING
TODAY 6 10 -4 0
MONTH TO DATE 130 141 -11 46
SINCE SEP 1 130 141 -11 46
SINCE JUL 1 192 255 -63 89
COOLING
TODAY 0 1 -1 2
MONTH TO DATE 8 24 -16 28
SINCE SEP 1 8 24 -16 28
SINCE JAN 1 378 307 71 327
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WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 4.6
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 500 AM
LOWEST 34 300 PM
AVERAGE 62
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THE GREAT FALLS MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 90 1917
MINIMUM TEMPERATURE (F) 41 20 1995
SUNRISE AND SUNSET
SEPTEMBER 20 2026.....SUNRISE 710 AM MDT SUNSET 727 PM MDT
SEPTEMBER 21 2026.....SUNRISE 711 AM MDT SUNSET 725 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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