Climatological Report (Monthly) Issued by NWS
000
CXUS55 KRIW 020001
CLMLND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
533 PM MDT MON MAY 01 2023
...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR LANDER FOR THE MONTH OF
APRIL 2023...
...OFFICIAL CLIMATE DATA FOR THE MONTH OF APRIL 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
...LANDER WAS COLDER AND WETTER THAN NORMAL IN APRIL....
THE AVERAGE TEMPERATURE FOR LANDER IN APRIL WAS 39 DEGREES WHICH WAS
4.2 DEGREES BELOW NORMAL. THE WARMEST READING FOR THE MONTH WAS 72
DEGREES ON THE 30TH. THE COLDEST TEMPERATURE WAS 7 DEGREES ON THE
5TH. NO TEMPERATURE READINGS WERE BROKEN THIS MONTH.
PRECIPITATION FOR THE MONTH WAS 2.83 INCHES...WHICH IS 137 PERCENT
OF NORMAL. THE WETTEST 24-HOUR PERIOD WAS THE 3RD-4TH WHEN 1.04
INCHES OF PRECIPITATION FELL. NO PRECIPITATION RECORDS WERE BROKEN.
SNOWFALL FOR THE MONTH WAS 24.9 INCHES WHICH IS 8.5 INCHES ABOVE
NORMAL. THE SNOWIEST DAY WAS THE 4TH WHEN 12.5 INCHES FELL. THIS
BROKE THE 2017 RECORD OF 10.7 INCHES. THE HIGHEST WIND GUST OCCURRED
ON THE 11TH WITH 49 MPH FROM THE SOUTHWEST.
...THE LANDER WY CLIMATE SUMMARY FOR THE MONTH OF APRIL 2023...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1891 TO 2023
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..............................................................
TEMPERATURE (F)
RECORD
HIGH 83 04/23/2012
LOW -11 04/02/1936
04/22/1892
HIGHEST 72 04/30
LOWEST 7 04/05
AVG. MAXIMUM 51.5 56.2 -4.7
AVG. MINIMUM 26.5 30.3 -3.8
MEAN 39.0 43.2 -4.2
DAYS MAX >= 90 0
DAYS MAX <= 32 3
DAYS MIN <= 32 24
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 7.19 1900
MINIMUM 0.10 1930
TOTALS 2.83 2.07 0.76 1.34
DAILY AVG. 0.09 0.07 0.02
DAYS >= .01 7
DAYS >= .10 5
DAYS >= .50 3
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 1.04 04/03 TO 04/04
STORM TOTAL 0.80
SNOWFALL (INCHES)
TOTALS 24.9 16.4 8.5
SINCE 7/1 107.0 83.0 24.0
SNOWDEPTH AVG. 4
DAYS >= 1.0 6
DEGREE DAYS
HEATING TOTAL 771 652 119
SINCE 7/1 8362 7202 1160
COOLING TOTAL 0 0 0
SINCE 1/1 0 0 0
..............................................................
WIND (MPH)
AVERAGE WIND SPEED 6.9
RESULTANT WIND SPEED/DIRECTION 2/280
HIGHEST WIND SPEED/DIRECTION 38/020 DATE 04/27
HIGHEST GUST SPEED/DIRECTION 49/210 DATE 04/11
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.23
NUMBER OF DAYS FAIR 24
NUMBER OF DAYS PC 2
NUMBER OF DAYS CLOUDY 4
AVERAGE RH (PERCENT) 55
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 2
LIGHT RAIN 4 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 3 SNOW 5
LIGHT SNOW 6 SLEET 0
FOG 7 FOG W/VIS <= 1/4 MILE 3
HAZE 2
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
LOOKING AHEAD TO MAY 2023...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 60 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 34 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 72
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 44. THE AVERAGE MONTHLY
PRECIPITATION IS 2.68 INCHES. THE AVERAGE MONTHLY SNOWFALL IS 4.5
INCHES.
$$