747
CXUS55 KRIW 011519
CLMGEY

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
919 AM MDT WED JUL 01 2026

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

...THE GREYBULL WY CLIMATE SUMMARY FOR THE MONTH OF JUNE 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH            108   06/15/2021
 LOW              32   06/07/2009
HIGHEST           99   06/06
LOWEST            40   06/08
AVG. MAXIMUM    81.4               81.4    -0.0
AVG. MINIMUM    50.0               52.6    -2.6
MEAN            65.7               67.0    -1.3
DAYS MAX >= 90     3
DAYS MAX <= 32     0
DAYS MIN <= 32     0
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        3.72   2023
 MINIMUM        0.02   2021
TOTALS          0.41               1.08   -0.67     0.46
DAILY AVG.      0.01               0.04   -0.03
DAYS >= .01        6
DAYS >= .10        1
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.22   06/25 TO 06/25
 STORM TOTAL    0.22


DEGREE DAYS
HEATING TOTAL     44                 62     -18
 SINCE 7/1      5803               7548   -1745
COOLING TOTAL     70                122     -52
 SINCE 1/1       116                146     -30
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              8.9
RESULTANT WIND SPEED/DIRECTION   4/320
HIGHEST WIND SPEED/DIRECTION    37/270    DATE  06/27
HIGHEST GUST SPEED/DIRECTION    51/280    DATE  06/27

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.19
NUMBER OF DAYS FAIR           23
NUMBER OF DAYS PC              6
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     45

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       2
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       2     FOG W/VIS <= 1/4 MILE      0
HAZE                      1

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

$$