834
CDUS45 KTFX 100735
CLIHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
135 AM MDT SUN MAY 10 2026
...............................
..THE HELENA MT CLIMATE SUMMARY FOR MAY 9 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 70 520 PM 84 1987 64 6 80
1994
MINIMUM 48 1049 PM 24 2002 39 9 43
AVERAGE 59 52 7 62
PRECIPITATION (IN)
YESTERDAY 0.00 1.12 1905 0.05 -0.05 0.00
MONTH TO DATE 0.05 0.37 -0.32 1.10
SINCE OCT 1 6.14 4.55 1.59 4.77
SINCE JAN 1 3.47 2.72 0.75 4.01
SNOWFALL (IN)
YESTERDAY 0.0 8.0 1983 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 6 13 -7 3
MONTH TO DATE 105 131 -26 84
SINCE MAR 1 1405 1643 -238 1318
SINCE JUL 1 5697 7137 -1440 6390
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 9.1
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 54 1100 PM
LOWEST 23 500 PM
AVERAGE 39
......................................................
THE HELENA MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 65 88 1940
MINIMUM TEMPERATURE (F) 40 23 1946
SUNRISE AND SUNSET
MAY 10 2026...........SUNRISE 600 AM MDT SUNSET 849 PM MDT
MAY 11 2026...........SUNRISE 559 AM MDT SUNSET 851 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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