CDUS45 KTFX 160842
CLILWT

CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
142 AM MST TUE DEC 16 2025

...................................

...THE LEWISTOWN MT CLIMATE SUMMARY FOR DECEMBER 15 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1896 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         56    307 PM  62    1980  35     21       37
  MINIMUM         39    152 AM -29    1964  13     26       24
  AVERAGE         48                        24     24       31

PRECIPITATION (IN)
  YESTERDAY        0.00          0.80 1901   0.02  -0.02     0.01
  MONTH TO DATE    0.90                      0.23   0.67     0.16
  SINCE OCT 1      2.46                      2.17   0.29     1.07
  SINCE JAN 1     16.93                     16.89   0.04    19.58

SNOWFALL (IN)
  YESTERDAY       MM
  SNOW DEPTH      MM

DEGREE DAYS
 HEATING
  YESTERDAY       17                        41    -24       34
  MONTH TO DATE  543                       593    -50      464
  SINCE DEC 1    543                       593    -50      464
  SINCE JUL 1   2182                      2684   -502     2155

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    163                       229    -66      298
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    36   HIGHEST WIND DIRECTION    SW (240)
  HIGHEST GUST SPEED    50   HIGHEST GUST DIRECTION    SW (230)
  AVERAGE WIND SPEED    21.5


SKY COVER
  AVERAGE SKY COVER 0.0


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    62           200 AM
 LOWEST     35          1200 PM
 AVERAGE    49

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THE LEWISTOWN MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   35        61      1980
 MINIMUM TEMPERATURE (F)   13       -31      1964


SUNRISE AND SUNSET
DECEMBER 16 2025......SUNRISE   758 AM MST   SUNSET   429 PM MST
DECEMBER 17 2025......SUNRISE   759 AM MST   SUNSET   430 PM MST


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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