548
CDUS45 KTFX 172240
CLIGTF
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
440 PM MDT SUN MAY 17 2026
...............................
..THE GREAT FALLS MT CLIMATE SUMMARY FOR MAY 17 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 41 1207 AM 87 2006 65 -24 65
MINIMUM 35 808 AM 26 2003 39 -4 35
AVERAGE 38 52 -14 50
PRECIPITATION (IN)
TODAY 0.10 1.55 1949 0.08 0.02 0.00
MONTH TO DATE 0.60 1.07 -0.47 1.87
SINCE OCT 1 6.32 6.90 -0.58 6.63
SINCE JAN 1 4.48 4.62 -0.14 5.55
DEGREE DAYS
HEATING
TODAY 27 13 14 15
MONTH TO DATE 203 267 -64 195
SINCE MAR 1 1639 1903 -264 1595
SINCE JUL 1 5882 7373 -1491 6894
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 24 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 14.5
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
RAIN
LIGHT RAIN
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 400 AM
LOWEST 72 100 PM
AVERAGE 81
......................................................
THE GREAT FALLS MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 90 2006
MINIMUM TEMPERATURE (F) 39 27 1903
1977
SUNRISE AND SUNSET
MAY 17 2026...........SUNRISE 546 AM MDT SUNSET 859 PM MDT
MAY 18 2026...........SUNRISE 545 AM MDT SUNSET 900 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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