987
CDUS45 KTFX 202240
CLIGTF
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
440 PM MDT WED MAY 20 2026
...............................
..THE GREAT FALLS MT CLIMATE SUMMARY FOR MAY 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 56 244 PM 94 1897 66 -10 63
MINIMUM 39 336 AM 26 2021 40 -1 36
AVERAGE 48 53 -5 50
PRECIPITATION (IN)
TODAY 0.07 1.76 1957 0.09 -0.02 T
MONTH TO DATE 0.79 1.33 -0.54 2.28
SINCE OCT 1 6.51 7.16 -0.65 7.04
SINCE JAN 1 4.67 4.88 -0.21 5.96
DEGREE DAYS
HEATING
TODAY 17 12 5 15
MONTH TO DATE 259 304 -45 243
SINCE MAR 1 1695 1940 -245 1643
SINCE JUL 1 5938 7410 -1472 6942
COOLING
TODAY 0 0 0 0
MONTH TO DATE 2 0 2 2
SINCE MAR 1 3 0 3 2
SINCE JAN 1 3 0 3 2
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 9.0
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 1100 AM
LOWEST 50 900 AM
AVERAGE 68
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THE GREAT FALLS MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 93 1980
MINIMUM TEMPERATURE (F) 40 24 2022
SUNRISE AND SUNSET
MAY 20 2026...........SUNRISE 543 AM MDT SUNSET 902 PM MDT
MAY 21 2026...........SUNRISE 541 AM MDT SUNSET 903 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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