529
CDUS45 KTFX 152240
CLIGTF
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
440 PM MDT FRI MAY 15 2026
...............................
..THE GREAT FALLS MT CLIMATE SUMMARY FOR MAY 15 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 64 135 PM 93 1897 65 -1 55
MINIMUM 38 154 AM 28 1929 38 0 38
AVERAGE 51 51 0 47
PRECIPITATION (IN)
TODAY 0.00 2.75 1902 0.07 -0.07 0.31
MONTH TO DATE 0.50 0.91 -0.41 1.87
SINCE OCT 1 6.22 6.74 -0.52 6.63
SINCE JAN 1 4.38 4.46 -0.08 5.55
DEGREE DAYS
HEATING
TODAY 14 14 0 18
MONTH TO DATE 159 241 -82 161
SINCE MAR 1 1595 1877 -282 1561
SINCE JUL 1 5838 7347 -1509 6860
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 31 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 18.4
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 70 200 AM
LOWEST 17 200 PM
AVERAGE 44
......................................................
THE GREAT FALLS MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 65 92 1988
MINIMUM TEMPERATURE (F) 39 30 1942
1974
SUNRISE AND SUNSET
MAY 15 2026...........SUNRISE 548 AM MDT SUNSET 856 PM MDT
MAY 16 2026...........SUNRISE 547 AM MDT SUNSET 857 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page