879
CXUS55 KMSO 022143
CLMBTM

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

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

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

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1895 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             90   05/28/1919
 LOW               9   05/01/1975
                       05/08/1965
HIGHEST           84   05/28         MM      MM       87
LOWEST            19   05/19         MM      MM       25
AVG. MAXIMUM    64.6               61.0     3.6     64.2
AVG. MINIMUM    33.7               34.3    -0.6     35.4
MEAN            49.2               47.6     1.6     49.8
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32    14               12.0     2.0        9
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        5.84   1927
 MINIMUM        0.09   1934
TOTALS          1.64               2.02   -0.38     2.84
DAILY AVG.      0.05               0.07   -0.01     0.09
DAYS >= .01        7               13.0    -6.0       13
DAYS >= .10        3                6.1    -3.1        8
DAYS >= .50        1                0.8     0.2        1
DAYS >= 1.00       1                0.1     0.9        0
GREATEST
 24 HR. TOTAL   1.23   05/30 TO 05/31               0.78


DEGREE DAYS
HEATING TOTAL    482                538     -56
 SINCE 7/1      7034               8837   -1803
COOLING TOTAL      0                  0       0
 SINCE 1/1         0                  0       0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.9
HIGHEST WIND SPEED/DIRECTION    41/190    DATE  05/13
HIGHEST GUST SPEED/DIRECTION    67/190    DATE  05/13

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.37
NUMBER OF DAYS FAIR           18
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     53

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

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

$$