Climatological Report (Monthly)
Issued by NWS
Issued by NWS
434
CXUS55 KRIW 021629
CLMRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1013 AM MDT FRI MAY 02 2025
...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR ROCK SPRINGS FOR THE
MONTH OF APRIL 2025...
...OFFICIAL CLIMATE DATA FOR THE MONTH OF APRIL 2025 WILL BE
AVAILABLE IN APPROXIMATELY 60 DAYS FROM THE NATIONAL CENTERS FOR
ENVIRONMENTAL INFORMATION (HTTP://WWW.NCDC.NOAA.GOV/CDO-
WEB/DATASETS). UNOFFICIAL ASOS DAILY SUMMARIES ARE AVAILABLE ON THE
INTERNET AT HTTP://WWW.WEATHER.GOV/CLIMATE/INDEX.PHP?WFO=RIW
...ROCK SPRINGS WAS DRIER AND WARMER THAN NORMAL IN APRIL...
THE AVERAGE TEMPERATURE FOR ROCK SPRINGS IN APRIL WAS 43.9 DEGREES
WHICH WAS 2.7 DEGREES ABOVE NORMAL. THE WARMEST READING FOR THE
MONTH WAS 76 DEGREES ON THE 11TH. THIS BROKE THE 2012 RECORD OF 73.
THE 12TH HIGH OF 72 BROKE THE RECORD OF 71 FROM 2024. THE COLDEST
TEMPERATURE WAS 15 DEGREES ON THE 19TH.
PRECIPITATION FOR THE MONTH WAS 0.48 INCHES...WHICH WAS 53 PERCENT
OF NORMAL. THE WETTEST 24-HOUR PERIOD WAS ON THE 17TH-18TH WITH 0.21
INCHES. NO PRECIPITATION RECORDS WERE BROKEN THIS MONTH.. THE
HIGHEST WIND GUST WAS 48 MPH FROM THE WEST ON THE 8TH AND 12TH
...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR THE MONTH OF APRIL 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1948 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..............................................................
TEMPERATURE (F)
RECORD
HIGH 79 04/23/2012
04/29/2007
04/20/1989
LOW 2 04/02/1975
HIGHEST 76 04/11
LOWEST 15 04/19
AVG. MAXIMUM 57.5 52.8 4.7
AVG. MINIMUM 30.3 29.7 0.6
MEAN 43.9 41.2 2.7
DAYS MAX >= 90 0
DAYS MAX <= 32 0
DAYS MIN <= 32 14
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 2.74 1999
MINIMUM T 2013
TOTALS 0.48 0.91 -0.43 0.44
DAILY AVG. 0.02 0.03 -0.01
DAYS >= .01 7
DAYS >= .10 2
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.21 04/17 TO 04/18
STORM TOTAL 0.19
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 557 712 -155
SINCE 7/1 6652 7463 -811
COOLING TOTAL 0 0 0
SINCE 1/1 0 0 0
..............................................................
WIND (MPH)
AVERAGE WIND SPEED 11.9
RESULTANT WIND SPEED/DIRECTION 4/260
HIGHEST WIND SPEED/DIRECTION 36/210 DATE 04/27
HIGHEST GUST SPEED/DIRECTION 48/270 DATE 04/08
48/270 04/12
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.28
NUMBER OF DAYS FAIR 20
NUMBER OF DAYS PC 9
NUMBER OF DAYS CLOUDY 1
AVERAGE RH (PERCENT) 50
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 2
LIGHT RAIN 7 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 2 SNOW 2
LIGHT SNOW 4 SLEET 0
FOG 5 FOG W/VIS <= 1/4 MILE 1
HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
LOOKING AHEAD TO MAY 2025. THE AVERAGE HIGH TEMPERATURE ON THE FIRST
OF THE MONTH IS 57 DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 33
DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 69 DEGREES AND
THE AVERAGE LOW TEMPERATURE IS 43. THE AVERAGE MONTHLY PRECIPITATION
IS 1.27 INCHES.
$$