Climatological Report (Monthly)
Issued by NWS
Issued by NWS
798
CXUS55 KRIW 031631
CLMCPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1012 AM MDT FRI MAY 03 2024
...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR CASPER FOR THE MONTH OF
APRIL 2024...
...OFFICIAL CLIMATE DATA FOR THE MONTH OF APRIL 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
...APRIL WAS WARMER AND DRIER THAN NORMAL FOR CASPER...
THE AVERAGE TEMPERATURE FOR CASPER IN APRIL WAS 43.6 DEGREES WHICH
WAS 2.1 DEGREES ABOVE NORMAL. THE WARMEST READING FOR THE MONTH WAS
76 DEGREES ON THE 12TH AND 14TH. THE 12TH HIGH OF 75 TIED THE 1992
RECORD. THE COLDEST TEMPERATURE WAS 13 DEGREES ON THE 25TH.
PRECIPITATION FOR THE MONTH WAS 1.22 INCHES...WHICH IS 87 PERCENT OF
NORMAL. THE WETTEST 24-HOUR PERIOD WAS ON THE 6TH WHEN 0.83 INCHES
FELL. NO PRECIPITATION OR SNOWFALL RECORDS WERE BROKEN.
SNOWFALL FOR THE MONTH WAS 6.6 INCHES WHICH IS 63 PERCENT OF NORMAL.
THE SNOWIEST 24-HOURS WAS ON THE 6TH WITH 4.8 INCHES. THE HIGHEST
WIND GUST WAS 47 MPH FROM THE SOUTHWEST ON THE 5TH.
...THE CASPER WY CLIMATE SUMMARY FOR THE MONTH OF APRIL 2024...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1939 TO 2024
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..............................................................
TEMPERATURE (F)
RECORD
HIGH 84 04/30/1992
LOW -6 04/12/1997
HIGHEST 75 04/12
04/13
04/14
LOWEST 18 04/21
AVG. MAXIMUM 58.5 56.3 2.2
AVG. MINIMUM 28.7 28.2 0.5
MEAN 43.6 42.3 1.3
DAYS MAX >= 90 0
DAYS MAX <= 32 0
DAYS MIN <= 32 19
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 5.75 1941
MINIMUM 0.08 1992
TOTALS 1.22 1.41 -0.19 1.49
DAILY AVG. 0.04 0.05 -0.01
DAYS >= .01 9
DAYS >= .10 2
DAYS >= .50 1
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.83 04/06 TO 04/06
STORM TOTAL 0.83
SNOWFALL (INCHES)
TOTALS 6.6 10.5 -3.9
SINCE 7/1 38.5 69.1 -30.6
SNOWDEPTH AVG. 0
DAYS >= 1.0 1
DEGREE DAYS
HEATING TOTAL 633 682 -49
SINCE 7/1 6481 6953 -472
COOLING TOTAL 0 0 0
SINCE 1/1 0 0 0
..............................................................
WIND (MPH)
AVERAGE WIND SPEED 10.7
RESULTANT WIND SPEED/DIRECTION 4/270
HIGHEST WIND SPEED/DIRECTION 37/200 DATE 04/05
HIGHEST GUST SPEED/DIRECTION 47/220 DATE 04/05
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.37
NUMBER OF DAYS FAIR 15
NUMBER OF DAYS PC 10
NUMBER OF DAYS CLOUDY 5
AVERAGE RH (PERCENT) 58
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 2 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 1
LIGHT RAIN 9 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 1 SNOW 1
LIGHT SNOW 6 SLEET 0
FOG 8 FOG W/VIS <= 1/4 MILE 1
HAZE 4
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
LOOKING AHEAD TO MAY 2024. THE AVERAGE HIGH TEMPERATURE ON THE FIRST
OF THE MONTH IS 60 DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 32
DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 73
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 42. THE AVERAGE MONTHLY
PRECIPITATION IS 2.21 INCHES. THE AVERAGE MONTHLY SNOWFALL IS 2.6
INCHES.
$$