Climatological Report (Daily)
Issued by NWS
Issued by NWS
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118
CDUS45 KTFX 180733
CLILWT
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
133 AM MDT TUE AUG 18 2026
...................................
...THE LEWISTOWN MT CLIMATE SUMMARY FOR AUGUST 17 2026...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1896 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM MM MM 98 1906 81 MM 82
MINIMUM MM MM 31 1910 50 MM 52
AVERAGE MM 65 MM 67
PRECIPITATION (IN)
YESTERDAY MM 0.88 1990 0.06 MM 0.44
MONTH TO DATE T 0.93 -0.93 1.73
SINCE OCT 1 16.10 15.02 1.08 14.24
SINCE JAN 1 13.51 12.57 0.94 12.87
SNOWFALL (IN)
YESTERDAY MM
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY MM 2 MM 0
MONTH TO DATE 24 26 -2 18
SINCE JUN 1 326 317 9 263
SINCE JUL 1 39 91 -52 69
COOLING
YESTERDAY MM 3 MM 2
MONTH TO DATE 42 63 -21 41
SINCE JUN 1 252 181 71 120
SINCE JAN 1 265 182 83 123
...................................................................
WIND (MPH)
HIGHEST WIND SPEED MM HIGHEST WIND DIRECTION MM
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED MM
SKY COVER
AVERAGE SKY COVER MM
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST MM
LOWEST MM
AVERAGE MM
..........................................................
THE LEWISTOWN MT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 97 1964
MINIMUM TEMPERATURE (F) 49 33 1902
SUNRISE AND SUNSET
AUGUST 18 2026........SUNRISE 619 AM MDT SUNSET 823 PM MDT
AUGUST 19 2026........SUNRISE 620 AM MDT SUNSET 822 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$