Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KTFX 170735
CLILWT
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
135 AM MDT MON AUG 17 2026
...................................
...THE LEWISTOWN MT CLIMATE SUMMARY FOR AUGUST 16 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 1973 82 MM 88
2003
MINIMUM MM MM 32 1905 50 MM 52
AVERAGE MM 66 MM 70
PRECIPITATION (IN)
YESTERDAY MM 0.46 1911 0.06 MM 0.10
MONTH TO DATE T 0.87 -0.87 1.29
SINCE OCT 1 16.10 14.96 1.14 13.80
SINCE JAN 1 13.51 12.51 1.00 12.43
SNOWFALL (IN)
YESTERDAY MM
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY MM 2 MM 0
MONTH TO DATE 24 24 0 18
SINCE JUN 1 326 315 11 263
SINCE JUL 1 39 89 -50 69
COOLING
YESTERDAY MM 3 MM 5
MONTH TO DATE 42 60 -18 39
SINCE JUN 1 252 178 74 118
SINCE JAN 1 265 179 86 121
...................................................................
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 98 1906
MINIMUM TEMPERATURE (F) 50 31 1910
SUNRISE AND SUNSET
AUGUST 17 2026........SUNRISE 618 AM MDT SUNSET 825 PM MDT
AUGUST 18 2026........SUNRISE 619 AM MDT SUNSET 823 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$