Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KTFX 152240
CLILWT
CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
440 PM MDT TUE SEP 15 2026
...................................
...THE LEWISTOWN MT CLIMATE SUMMARY FOR SEPTEMBER 15 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 93 1908 71 MM 74
MINIMUM MM MM 23 1916 42 MM 48
AVERAGE MM 56 MM 61
PRECIPITATION (IN)
TODAY 0.00 0.97 2017 0.05 -0.05 T
MONTH TO DATE 0.57 0.70 -0.13 0.60
SINCE OCT 1 17.13 16.48 0.65 15.49
SINCE JAN 1 14.54 14.03 0.51 14.12
DEGREE DAYS
HEATING
TODAY MM 9 MM 4
MONTH TO DATE 72 110 -38 60
SINCE SEP 1 72 110 -38 60
SINCE JUL 1 136 256 -120 134
COOLING
TODAY MM 0 MM 0
MONTH TO DATE 17 14 3 11
SINCE SEP 1 17 14 3 11
SINCE JAN 1 338 224 114 163
...................................................................
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) 70 91 1998
MINIMUM TEMPERATURE (F) 42 22 1912
SUNRISE AND SUNSET
SEPTEMBER 15 2026.....SUNRISE 656 AM MDT SUNSET 729 PM MDT
SEPTEMBER 16 2026.....SUNRISE 657 AM MDT SUNSET 727 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$