697
CXUS55 KRIW 011655
CLMRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1055 AM MDT FRI MAY 01 2026
...............................
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR THE MONTH OF APRIL 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1948 TO 2026
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 79 04/23/2012
04/29/2007
04/20/1989
LOW 2 04/02/1975
HIGHEST 74 04/21
LOWEST 16 04/17
AVG. MAXIMUM 56.3 52.8 3.5
AVG. MINIMUM 29.8 29.7 0.1
MEAN 43.1 41.2 1.9
DAYS MAX >= 90 0
DAYS MAX <= 32 0
DAYS MIN <= 32 22
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 2.74 1999
MINIMUM T 2013
TOTALS 0.59 0.91 -0.32 0.48
DAILY AVG. 0.02 0.03 -0.01
DAYS >= .01 5
DAYS >= .10 3
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.26 04/01 TO 04/02
STORM TOTAL 0.22
SNOWFALL (INCHES)
TOTALS MM 8.8 MM
SINCE 7/1 MM 50.9 MM
SNOWDEPTH AVG. MM
DAYS >= 1.0 MM
DEGREE DAYS
HEATING TOTAL 652 712 -60
SINCE 7/1 5644 7463 -1819
COOLING TOTAL 0 0 0
SINCE 1/1 0 0 0
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WIND (MPH)
AVERAGE WIND SPEED 13.4
RESULTANT WIND SPEED/DIRECTION 9/250
HIGHEST WIND SPEED/DIRECTION 45/270 DATE 04/22
HIGHEST GUST SPEED/DIRECTION 57/280 DATE 04/22
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.37
NUMBER OF DAYS FAIR 15
NUMBER OF DAYS PC 11
NUMBER OF DAYS CLOUDY 4
AVERAGE RH (PERCENT) 50
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 0
LIGHT RAIN 10 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 1 SNOW 3
LIGHT SNOW 6 SLEET 0
FOG 7 FOG W/VIS <= 1/4 MILE 1
HAZE 2
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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