Climatological Report (Daily)
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334
CDUS45 KTFX 160735
CLILWT

CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
135 AM MDT WED SEP 16 2026

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

...THE LEWISTOWN MT CLIMATE SUMMARY FOR SEPTEMBER 15 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  93    1908  71     MM       74
  MINIMUM         MM        MM  23    1916  42     MM       48
  AVERAGE         MM                        56     MM       61

PRECIPITATION (IN)
  YESTERDAY       MM             0.97 2017   0.05  MM         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

SNOWFALL (IN)
  YESTERDAY       MM
  SNOW DEPTH      MM

DEGREE DAYS
 HEATING
  YESTERDAY       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
  YESTERDAY       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 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)   70        91      1998
 MINIMUM TEMPERATURE (F)   42        22      1912


SUNRISE AND SUNSET
SEPTEMBER 16 2026.....SUNRISE   657 AM MDT   SUNSET   727 PM MDT
SEPTEMBER 17 2026.....SUNRISE   658 AM MDT   SUNSET   725 PM MDT


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




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