323
CDUS45 KTFX 212240
CLIHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
440 PM MDT THU MAY 21 2026
...............................
..THE HELENA MT CLIMATE SUMMARY FOR MAY 21 2026
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1866 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 58 151 PM 89 1980 68 -10 62
MINIMUM 41 402 AM 27 1953 43 -2 42
2021
AVERAGE 50 56 -6 52
PRECIPITATION (IN)
TODAY T 1.93 1981 0.07 -0.07 0.00
MONTH TO DATE 0.25 1.12 -0.87 3.37
SINCE OCT 1 6.34 5.30 1.04 7.04
SINCE JAN 1 3.67 3.47 0.20 6.28
DEGREE DAYS
HEATING
TODAY 15 10 5 13
MONTH TO DATE 253 266 -13 221
SINCE MAR 1 1553 1778 -225 1455
SINCE JUL 1 5845 7272 -1427 6527
COOLING
TODAY 0 0 0 0
MONTH TO DATE 1 0 1 4
SINCE MAR 1 1 0 1 4
SINCE JAN 1 1 0 1 4
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 7.9
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 400 AM
LOWEST 36 200 PM
AVERAGE 61
......................................................
THE HELENA MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 86 1928
2001
MINIMUM TEMPERATURE (F) 44 29 2021
SUNRISE AND SUNSET
MAY 21 2026...........SUNRISE 547 AM MDT SUNSET 903 PM MDT
MAY 22 2026...........SUNRISE 546 AM MDT SUNSET 904 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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