Climatological Report (Monthly) Issued by NWS
000
CXUS55 KRIW 111900
CLMCPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1252 PM MDT SUN JUN 11 2023
...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR CASPER FOR THE MONTH OF
MAY 2023..
...OFFICIAL CLIMATE DATA FOR THE MONTH OF MAY 2023 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
...MAY WAS WARMER THAN NORMAL FOR CASPER...
THE AVERAGE TEMPERATURE FOR CASPER IN MAY WAS 55.2 DEGREES WHICH WAS
3.2 DEGREES ABOVE NORMAL. THE WARMEST READING FOR THE MONTH WAS 81
DEGREES ON THE 22ND AND 31ST. THE COLDEST TEMPERATURE WAS 26 DEGREES
ON THE 1ST. NO TEMPERATURE RECORDS WERE BROKEN.
PRECIPITATION FOR THE MONTH WAS 2.03 INCHES...WHICH IS 92 PERCENT OF
NORMAL THE WETTEST 24-HOUR PERIOD WAS ON THE 23RD-24TH WHEN 0.53
INCHES FELL. NO PRECIPITATION RECORDS WERE BROKEN. THE HIGHEST WIND
GUST WAS 51 MPH FROM THE SOUTHWEST ON THE 6TH
...THE CASPER WY CLIMATE SUMMARY FOR THE MONTH OF MAY 2023...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1939 TO 2023
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..............................................................
TEMPERATURE (F)
RECORD
HIGH 95 05/29/2003
LOW 16 05/12/1953
HIGHEST 81 05/22
05/31
LOWEST 26 05/01
AVG. MAXIMUM 70.3 66.8 3.5
AVG. MINIMUM 40.1 37.1 3.0
MEAN 55.2 52.0 3.2
DAYS MAX >= 90 0
DAYS MAX <= 32 0
DAYS MIN <= 32 4
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 6.46 1978
MINIMUM 0.30 2020
TOTALS 2.03 2.21 -0.18 2.61
DAILY AVG. 0.07 0.07 -0.00
DAYS >= .01 14
DAYS >= .10 9
DAYS >= .50 1
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.53 05/24 TO 05/24
STORM TOTAL 0.53
SNOWFALL (INCHES)
TOTALS 0.0 2.6 -2.6
SINCE 7/1 134.3 71.7 62.6
SNOWDEPTH AVG. 0
DAYS >= 1.0 0
DEGREE DAYS
HEATING TOTAL 295 409 -114
SINCE 7/1 7938 7361 577
COOLING TOTAL 0 4 -4
SINCE 1/1 0 4 -4
..............................................................
WIND (MPH)
AVERAGE WIND SPEED 9.5
RESULTANT WIND SPEED/DIRECTION 1/290
HIGHEST WIND SPEED/DIRECTION 37/230 DATE 05/06
HIGHEST GUST SPEED/DIRECTION 51/230 DATE 05/06
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.27
NUMBER OF DAYS FAIR 25
NUMBER OF DAYS PC 1
NUMBER OF DAYS CLOUDY 5
AVERAGE RH (PERCENT) 61
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 9 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 4
LIGHT RAIN 17 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 12 FOG W/VIS <= 1/4 MILE 0
HAZE 3
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
LOOKING AHEAD TO JUNE 2023...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 74 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 42 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 85
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 49. THE AVERAGE MONTHLY
PRECIPITATION IS 1.34 INCHES. THE AVERAGE MONTHLY SNOWFALL IS 0.1
INCHES.
$$