105
CDUS45 KTFX 170732
CLIHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
132 AM MDT SUN MAY 17 2026
...............................
..THE HELENA MT CLIMATE SUMMARY FOR MAY 16 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 52 152 PM 91 1988 67 -15 62
2006
MINIMUM 39 1159 PM 28 1986 42 -3 41
AVERAGE 46 54 -8 52
PRECIPITATION (IN)
YESTERDAY T 0.86 2015 0.06 -0.06 0.00
MONTH TO DATE 0.08 0.78 -0.70 2.86
SINCE OCT 1 6.17 4.96 1.21 6.53
SINCE JAN 1 3.50 3.13 0.37 5.77
SNOWFALL (IN)
YESTERDAY 0.0 0.8 1942 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 19 11 8 13
MONTH TO DATE 155 215 -60 153
SINCE MAR 1 1455 1727 -272 1387
SINCE JUL 1 5747 7221 -1474 6459
COOLING
YESTERDAY 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 39 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 50 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 10.1
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 70 1000 AM
LOWEST 41 500 PM
AVERAGE 56
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THE HELENA MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 90 2006
MINIMUM TEMPERATURE (F) 42 26 1943
SUNRISE AND SUNSET
MAY 17 2026...........SUNRISE 551 AM MDT SUNSET 858 PM MDT
MAY 18 2026...........SUNRISE 550 AM MDT SUNSET 859 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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