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877
CDUS45 KTFX 180731
CLIGTF

CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
131 AM MDT FRI SEP 18 2026

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

...THE GREAT FALLS MT CLIMATE SUMMARY FOR SEPTEMBER 17 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1886 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         71    405 PM  92    2009  71      0       77
  MINIMUM         39    608 AM  26    1965  43     -4       44
  AVERAGE         55                        57     -2       61

PRECIPITATION (IN)
  YESTERDAY        0.00          1.09 1988   0.04  -0.04     0.00
                                      1996
  MONTH TO DATE    0.96                      0.77   0.19     0.26
  SINCE OCT 1     16.76                     14.20   2.56    11.39
  SINCE JAN 1     14.92                     11.92   3.00    10.31

SNOWFALL (IN)
  YESTERDAY        0.0           4.5  1988   0.1   -0.1      0.0
  MONTH TO DATE    0.0                       0.2   -0.2      0.0
  SINCE SEP 1      0.0                       0.2   -0.2      0.0
  SINCE JUL 1      0.0                       0.5   -0.5      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       10                         9      1        4
  MONTH TO DATE  114                       113      1       43
  SINCE SEP 1    114                       113      1       43
  SINCE JUL 1    176                       227    -51       86

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE    8                        21    -13       26
  SINCE SEP 1      8                        21    -13       26
  SINCE JAN 1    378                       304     74      325
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     E (80)
  AVERAGE WIND SPEED     6.4


SKY COVER
  AVERAGE SKY COVER 0.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           600 AM
 LOWEST     42           400 PM
 AVERAGE    71

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


THE GREAT FALLS MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   71        93      1981
 MINIMUM TEMPERATURE (F)   42        23      1965


SUNRISE AND SUNSET
SEPTEMBER 18 2026.....SUNRISE   707 AM MDT   SUNSET   731 PM MDT
SEPTEMBER 19 2026.....SUNRISE   708 AM MDT   SUNSET   729 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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