878
CXUS55 KMSO 022143
CLMMSO

CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
343 PM MDT TUE JUN 02 2026

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

...THE MISSOULA MT CLIMATE SUMMARY FOR THE MONTH OF MAY 2026...

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

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             95   05/30/1986
                       05/29/1936
 LOW              21   05/08/1999
                       05/12/1985
                       05/01/1954
HIGHEST           85   05/25         MM      MM       94
                       05/28
LOWEST            26   05/18         MM      MM       28
AVG. MAXIMUM    69.2               66.2     3.0     70.4
AVG. MINIMUM    40.6               39.8     0.8     40.5
MEAN            54.9               53.0     1.9     55.5
DAYS MAX >= 90     0                0.2    -0.2        1
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     4                4.4    -0.4        2
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        7.38   1980
 MINIMUM        0.20   1907
TOTALS          2.12               1.77    0.35     1.10
DAILY AVG.      0.07               0.06    0.01     0.04
DAYS >= .01       11               12.1    -1.1       10
DAYS >= .10        6                5.2     0.8        5
DAYS >= .50        1                0.7     0.3        0
DAYS >= 1.00       0                0.0     0.0        0
GREATEST
 24 HR. TOTAL   1.11   05/30 TO 05/31               0.33

SNOWFALL (INCHES)
TOTALS             T                0.3    -0.3      0.0
SINCE 7/1       20.0               43.0   -23.0       MM
DAYS >= TRACE      2                0.3     1.7        0
DAYS >= 1.0        0                0.1    -0.1        0
GREATEST
 SNOW DEPTH        0                                   0
 24 HR TOTAL      MM                                  MM

DEGREE DAYS
HEATING TOTAL    311                375     -64
 SINCE 7/1      5992               7329   -1337
COOLING TOTAL      7                  3       4
 SINCE 1/1         7                  3       4
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              5.6
HIGHEST WIND SPEED/DIRECTION    30/280    DATE  05/13
HIGHEST GUST SPEED/DIRECTION    45/280    DATE  05/13

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.35
NUMBER OF DAYS FAIR           16
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     59

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       4
LIGHT RAIN               16     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       1
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       7     FOG W/VIS <= 1/4 MILE      0
HAZE                      3

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

$$