832
CXUS55 KMSO 062053
CLMMSO

CLIMATE REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
253 PM MDT FRI JUN 06 2025

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

...THE MISSOULA MT CLIMATE SUMMARY FOR THE MONTH OF MAY 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1893 TO 2025

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           94   05/31         MM      MM       82
LOWEST            28   05/06         MM      MM       27
AVG. MAXIMUM    70.4               66.2     4.2     64.6
AVG. MINIMUM    40.5               39.8     0.7     38.3
MEAN            55.5               53.0     2.5     51.5
DAYS MAX >= 90     1                0.2     0.8        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     2                4.4    -2.4        5
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        7.38   1980
 MINIMUM        0.20   1907
TOTALS          1.10               1.77   -0.67     2.18
DAILY AVG.      0.04               0.06   -0.02     0.07
DAYS >= .01       10               12.1    -2.1       13
DAYS >= .10        5                5.2    -0.2        8
DAYS >= .50        0                0.7    -0.7        1
DAYS >= 1.00       0                0.0     0.0        0
GREATEST
 24 HR. TOTAL   0.33   05/13 TO 05/14               0.83

SNOWFALL (INCHES)
TOTALS           0.0                0.3    -0.3      0.2
SINCE 7/1       39.3               43.0    -3.7       MM
DAYS >= TRACE      0                0.3    -0.3        3
DAYS >= 1.0        0                0.1    -0.1        0
GREATEST
 SNOW DEPTH        0                                  MM
 24 HR TOTAL      MM                                  MM

DEGREE DAYS
HEATING TOTAL    299                375     -76
 SINCE 7/1      6609               7329    -720
COOLING TOTAL     11                  3       8
 SINCE 1/1        11                  3       8
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              5.4
HIGHEST WIND SPEED/DIRECTION    99/099    DATE  05/09
HIGHEST GUST SPEED/DIRECTION    99/099    DATE  05/09

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.39
NUMBER OF DAYS FAIR           17
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     59

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       4
LIGHT RAIN               13     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       9     FOG W/VIS <= 1/4 MILE      0
HAZE                      4

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

$$