557
CDUS45 KTFX 110733
CLIHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
133 AM MDT MON MAY 11 2026
...............................
..THE HELENA MT CLIMATE SUMMARY FOR MAY 10 2026
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)
YESTERDAY
MAXIMUM 79 434 PM 88 1940 65 14 88
MINIMUM 42 542 AM 23 1946 40 2 50
AVERAGE 61 52 9 69
PRECIPITATION (IN)
YESTERDAY 0.00 1.45 1914 0.05 -0.05 0.00
MONTH TO DATE 0.05 0.42 -0.37 1.10
SINCE OCT 1 6.14 4.60 1.54 4.77
SINCE JAN 1 3.47 2.77 0.70 4.01
SNOWFALL (IN)
YESTERDAY 0.0 12.5 1967 0.0 0.0 0.0
MONTH TO DATE 0.0 0.1 -0.1 0.0
SINCE MAR 1 9.3 7.6 1.7 1.0
SINCE JUL 1 22.3 37.2 -14.9 36.8
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 4 13 -9 0
MONTH TO DATE 109 144 -35 84
SINCE MAR 1 1409 1656 -247 1318
SINCE JUL 1 5701 7150 -1449 6390
COOLING
YESTERDAY 0 0 0 4
MONTH TO DATE 0 0 0 4
SINCE MAR 1 0 0 0 4
SINCE JAN 1 0 0 0 4
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 4.1
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 67 400 AM
LOWEST 13 500 PM
AVERAGE 40
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THE HELENA MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 65 87 1993
MINIMUM TEMPERATURE (F) 40 25 1968
SUNRISE AND SUNSET
MAY 11 2026...........SUNRISE 559 AM MDT SUNSET 851 PM MDT
MAY 12 2026...........SUNRISE 558 AM MDT SUNSET 852 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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