440
CDUS45 KTFX 182240
CLIHLN
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
440 PM MDT SUN MAY 18 2025
...............................
..THE HELENA MT CLIMATE SUMMARY FOR MAY 18 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1866 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 53 251 PM 91 2006 67 -14 67
MINIMUM 47 757 AM 26 1903 42 5 40
AVERAGE 50 55 -5 54
PRECIPITATION (IN)
TODAY 0.42 1.10 1944 0.06 0.36 0.00
MONTH TO DATE 3.37 0.91 2.46 1.06
SINCE OCT 1 7.04 5.09 1.95 6.78
SINCE JAN 1 6.28 3.26 3.02 5.26
DEGREE DAYS
HEATING
TODAY 15 10 5 11
MONTH TO DATE 179 236 -57 214
SINCE MAR 1 1413 1748 -335 1575
SINCE JUL 1 6485 7242 -757 6625
COOLING
TODAY 0 0 0 0
MONTH TO DATE 4 0 4 0
SINCE MAR 1 4 0 4 0
SINCE JAN 1 4 0 4 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 11.2
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 1200 AM
LOWEST 57 200 PM
AVERAGE 73
......................................................
THE HELENA MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 90 1954
MINIMUM TEMPERATURE (F) 43 24 1997
SUNRISE AND SUNSET
MAY 18 2025...........SUNRISE 550 AM MDT SUNSET 900 PM MDT
MAY 19 2025...........SUNRISE 549 AM MDT SUNSET 901 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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