741
CXUS55 KRIW 011632
CLMLND

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1032 AM MDT MON JUN 01 2026

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

...THE LANDER WY CLIMATE SUMMARY FOR THE MONTH OF MAY 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1891 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             93   05/29/2003
 LOW              13   05/02/1903
HIGHEST           89   05/13
LOWEST            22   05/06
AVG. MAXIMUM    69.1               66.1     3.0
AVG. MINIMUM    41.4               39.4     2.0
MEAN            55.2               52.8     2.4
DAYS MAX >= 90     0
DAYS MAX <= 32     0
DAYS MIN <= 32     6
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        6.77   2011
 MINIMUM        0.06   2020
TOTALS          1.89               2.68   -0.79     1.88
DAILY AVG.      0.06               0.09   -0.03
DAYS >= .01        8
DAYS >= .10        4
DAYS >= .50        1
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   1.07   05/17 TO 05/18
 STORM TOTAL    0.58

SNOWFALL (INCHES)
TOTALS          12.5                4.5     8.0
SINCE 7/1       38.1               87.5   -49.4
SNOWDEPTH AVG.     0
DAYS >= 1.0        2

DEGREE DAYS
HEATING TOTAL    309                385     -76
 SINCE 7/1      5514               7588   -2074
COOLING TOTAL     13                  5       8
 SINCE 1/1        14                  5       9
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              7.6
RESULTANT WIND SPEED/DIRECTION   2/240
HIGHEST WIND SPEED/DIRECTION    47/230    DATE  05/13
HIGHEST GUST SPEED/DIRECTION    64/240    DATE  05/13

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.21
NUMBER OF DAYS FAIR           24
NUMBER OF DAYS PC              5
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     46

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              4     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       3
LIGHT RAIN               11     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                1     SNOW                       2
LIGHT SNOW                4     SLEET                      0
FOG                       4     FOG W/VIS <= 1/4 MILE      2
HAZE                      1

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

$$