Climatological Report (Monthly) Issued by NWS
000
CXUS55 KRIW 111902
CLMGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1252 PM MDT SUN JUN 11 2023
...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR GREYBULL 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
...GREYBULL WAS MUCH DRIER AND WARMER THAN NORMAL IN MAY...
THE AVERAGE TEMPERATURE FOR GREYBULL IN MAY WAS 62.4 DEGREES WHICH
WAS 5.4 DEGREE ABOVE NORMAL. IT WAS THE WARMEST MAY ON RECORD. THE
WARMEST READING FOR THE MONTH WAS 89 DEGREES ON THE 22ND...WHICH
TIED THE 2006 RECORD. THE 21ST HIT 88 WHICH BROKE THE 2002 RECORD OF
87 AND THE 23RD TIED 2014 WITH A HIGH OF 86 DEGREES. THE COLDEST
TEMPERATURE WAS 35 DEGREES ON THE 7TH.
PRECIPITATION FOR THE MONTH WAS 0.53 INCHES...WHICH IS 40 PERCENT OF
NORMAL THE WETTEST 24-HOUR PERIOD OCCURRED ON THE 26TH WITH 0.31
INCHES. NO PRECIPITATION RECORDS WERE BROKEN. THE HIGHEST WIND GUST
WAS 53 MPH FROM THE NORTHWEST ON THE 26TH.
...THE GREYBULL WY CLIMATE SUMMARY FOR THE MONTH OF MAY 2023...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2023
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..............................................................
TEMPERATURE (F)
RECORD
HIGH 98 05/29/2003
LOW 20 05/09/2002
HIGHEST 89 05/22
LOWEST 35 05/07
AVG. MAXIMUM 77.5 70.4 7.1
AVG. MINIMUM 47.3 43.6 3.7
MEAN 62.4 57.0 5.4
DAYS MAX >= 90 0
DAYS MAX <= 32 0
DAYS MIN <= 32 0
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 3.32 2010
MINIMUM 0.19 2001
TOTALS 0.53 1.33 -0.80 0.95
DAILY AVG. 0.02 0.04 -0.02
DAYS >= .01 7
DAYS >= .10 1
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.31 05/26 TO 05/26
STORM TOTAL 0.31
DEGREE DAYS
HEATING TOTAL 104 271 -167
SINCE 7/1 7692 7486 206
COOLING TOTAL 33 23 10
SINCE 1/1 33 24 9
..............................................................
WIND (MPH)
AVERAGE WIND SPEED 8.1
RESULTANT WIND SPEED/DIRECTION 3/330
HIGHEST WIND SPEED/DIRECTION 39/320 DATE 05/26
HIGHEST GUST SPEED/DIRECTION 53/290 DATE 05/26
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.25
NUMBER OF DAYS FAIR 26
NUMBER OF DAYS PC 4
NUMBER OF DAYS CLOUDY 1
AVERAGE RH (PERCENT) 50
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 5 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 3
LIGHT RAIN 15 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 3 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 JUNE 2023...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 76 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 49 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 87
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 56 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 1.08 INCHES.
$$