Climatological Report (Daily)
Issued by NWS Missoula, MT

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820
CDUS45 KMSO 170737
CLIMSO

CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
137 AM MDT THU SEP 17 2026

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

...THE MISSOULA MT CLIMATE SUMMARY FOR SEPTEMBER 16 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1893 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         71    351 PM  91    1937  73     -2       78
                                      2009
  MINIMUM         41    551 AM  27    1970  42     -1       45
  AVERAGE         56                        58     -2       62

PRECIPITATION (IN)
  YESTERDAY        0.00          0.83 1947   0.03  -0.03      T
  MONTH TO DATE    1.96                      0.52   1.44     0.19
  SINCE OCT 1     16.80                     13.67   3.13    10.53
  SINCE JAN 1     11.59                     10.23   1.36     8.96

SNOWFALL (IN)
  YESTERDAY        0.0
  MONTH TO DATE    0.0
  SINCE SEP 1      0.0
  SINCE JUL 1      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        9                         8      1        3
  MONTH TO DATE  114                        91     23       22
  SINCE SEP 1    114                        91     23       22
  SINCE JUL 1    141                       177    -36       56

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    2                        11     -9       53
  SINCE SEP 1      2                        11     -9       53
  SINCE JAN 1    390                       303     87      440
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     N (10)
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION    NW (330)
  AVERAGE WIND SPEED     5.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           700 AM
 LOWEST     42           300 PM
 AVERAGE    68

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


THE MISSOULA MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   72        91      1981
 MINIMUM TEMPERATURE (F)   42        24      1965


SUNRISE AND SUNSET
SEPTEMBER 17 2026.....SUNRISE   717 AM MDT   SUNSET   744 PM MDT
SEPTEMBER 18 2026.....SUNRISE   718 AM MDT   SUNSET   742 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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