Climatological Report (Monthly)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
485
CXUS55 KRIW 041916
CLMRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
103 PM MDT TUE JUN 04 2024
...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR RIVERTON FOR THE MONTH OF
MAY 2024...
...OFFICIAL CLIMATE DATA FOR THE MONTH OF MAY 2024 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
...RIVERTON WAS COLDER AND WETTER THAN NORMAL IN MAY....
THE AVERAGE TEMPERATURE FOR RIVERTON IN MAY WAS 50.9 DEGREES WHICH
WAS 2.3 DEGREES BELOW NORMAL. IT WAS THE 6TH COLDEST MAY SINCE
RECORDS BEGAN IN 1998. THE WARMEST READING FOR THE MONTH WAS 80
DEGREES ON THE 28TH. THE COLDEST READING WAS 25 DEGREES ON THE 4TH.
THIS BROKE THE 2002 RECORD OF 27. THE LOW ON THE 31ST OF 35 DEGREES
BROKE THE 2011 RECORD OF 36.
PRECIPITATION FOR THE MONTH WAS 2.29 INCHES...WHICH IS 119 PERCENT
OF NORMAL. THE WETTEST 24-HOURS WAS THE 20TH-21ST WHEN 0.67 INCHES
FELL. THE 14TH HAD 0.43 INCHES AND BROKE THE 2015 RECORD OF 0.18.
SNOWFALL FOR THE MONTH WAS 0.9 INCHES. THE SNOWIEST 24-HOUR PERIOD
WAS THE 3RD WITH 0.7 INCHES OF SNOW. THIS BROKE THE 2001 RECORD OF
0.5 INCHES. THE HIGHEST WIND GUST WAS 57 MPH AND OCCURRED ON THE 6TH
FROM THE NORTHWEST.
...THE RIVERTON WY CLIMATE SUMMARY FOR THE MONTH OF MAY 2024...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1995 TO 2024
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..............................................................
TEMPERATURE (F)
RECORD
HIGH 93 05/29/2003
LOW 19 05/09/2002
HIGHEST 80 05/28
LOWEST 25 05/04
AVG. MAXIMUM 64.4 66.8 -2.4
AVG. MINIMUM 37.4 39.5 -2.1
MEAN 50.9 53.2 -2.3
DAYS MAX >= 90 0
DAYS MAX <= 32 0
DAYS MIN <= 32 5
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 5.32 2011
MINIMUM 0.18 2006
TOTALS 2.29 1.92 0.37 0.32
DAILY AVG. 0.07 0.06 0.01
DAYS >= .01 9
DAYS >= .10 8
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.67 05/20 TO 05/21
STORM TOTAL 0.47
SNOWFALL (INCHES)
TOTALS 0.9 MM MM
SINCE 7/1 36.7 MM MM
SNOWDEPTH AVG. T
DAYS >= 1.0 0
DEGREE DAYS
HEATING TOTAL 430 375 55
SINCE 7/1 7451 7812 -361
COOLING TOTAL 0 8 -8
SINCE 1/1 0 8 -8
..............................................................
WIND (MPH)
AVERAGE WIND SPEED 10.7
RESULTANT WIND SPEED/DIRECTION 5/300
HIGHEST WIND SPEED/DIRECTION 43/300 DATE 05/06
43/290 05/07
HIGHEST GUST SPEED/DIRECTION 57/300 DATE 05/06
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.27
NUMBER OF DAYS FAIR 22
NUMBER OF DAYS PC 6
NUMBER OF DAYS CLOUDY 3
AVERAGE RH (PERCENT) 52
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 2 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 6
LIGHT RAIN 13 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 1
LIGHT SNOW 1 SLEET 0
FOG 7 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.
LOOKING AHEAD TO JUNE 2024. THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 73 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 45 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 84
DEGREES AND THE AVERAGE LOW TEMPERATURE IS 52. THE AVERAGE MONTHLY
PRECIPITATION IS 0.94 INCHES.
$$