Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KTFX 122240
CLILWT
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
440 PM MDT SAT SEP 12 2026
...................................
...THE LEWISTOWN MT CLIMATE SUMMARY FOR SEPTEMBER 12 2026...
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM MM MM 91 1953 72 MM 76
MINIMUM MM MM 22 1921 43 MM 45
AVERAGE MM 57 MM 61
PRECIPITATION (IN)
TODAY 0.00 1.33 1978 0.04 -0.04 0.45
MONTH TO DATE 0.36 0.56 -0.20 0.60
SINCE OCT 1 16.92 16.34 0.58 15.49
SINCE JAN 1 14.33 13.89 0.44 14.12
DEGREE DAYS
HEATING
TODAY MM 8 MM 4
MONTH TO DATE 34 83 -49 45
SINCE SEP 1 34 83 -49 45
SINCE JUL 1 98 229 -131 119
COOLING
TODAY MM 1 MM 0
MONTH TO DATE 12 13 -1 11
SINCE SEP 1 12 13 -1 11
SINCE JAN 1 333 223 110 163
...................................................................
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 TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST MM
LOWEST MM
AVERAGE MM
..........................................................
THE LEWISTOWN MT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 90 1959
MINIMUM TEMPERATURE (F) 42 23 1896
SUNRISE AND SUNSET
SEPTEMBER 12 2026.....SUNRISE 652 AM MDT SUNSET 735 PM MDT
SEPTEMBER 13 2026.....SUNRISE 653 AM MDT SUNSET 733 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$