368
CXUS55 KRIW 011529
CLMP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
919 AM MDT WED JUL 01 2026
...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR LAKE YELLOWSTONE FOR THE
MONTH OF JUNE 2026...
...OFFICIAL CLIMATE DATA FOR THE MONTH OF JUNE 2026 WILL BE
AVAILABLE APPROXIMATELY IN 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
..LAKE YELLOWSTONE WAS WARMER AND DRIER THAN NORMAL IN JUNE
AVERAGE TEMPERATURE FOR LAKE YELLOWSTONE IN JUNE WAS 47.6 DEGREES
WHICH IS 0.6 DEGREES ABOVE NORMAL. THE WARMEST READING OF THE MONTH
WAS 73 DEGREES ON THE 6TH AND 24TH. THE COLDEST READING OF THE MONTH
WAS 27 DEGREES ON THE 3RD AND 12TH. THE 28TH LOW OF 31 TIED THE 2012
AND 2014 RECORDS.
TOTAL PRECIPITATION AT LAKE YELLOWSTONE WAS 2.11 INCHES...WHICH WAS
89 PERCENT OF NORMAL. THE WETTEST 24-HOUR PERIOD DURING THE MONTH
WAS THE 9TH-10TH WITH 0.58 INCHES. THE 29TH HAD 0.24 INCHES AND
BROKE THE 2005 RECORD OF 0.23. THE HIGHEST WIND GUST WAS 46 MPH FROM
THE WEST ON THE 26TH.
...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR THE MONTH OF JUNE
2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..........................................................
TEMPERATURE (F)
RECORD
HIGH 83 06/29/2015
LOW 21 06/04/2011
HIGHEST 73 06/06
06/24
LOWEST 27 06/03
06/12
AVG. MAXIMUM 61.6 61.1 0.5
AVG. MINIMUM 33.5 33.0 0.5
MEAN 47.6 47.0 0.6
DAYS MAX >= 90 0
DAYS MAX <= 32 0
DAYS MIN <= 32 14
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 4.34 2010
MINIMUM 0.18 2021
TOTALS 2.11 2.38 -0.27 0.65
DAILY AVG. 0.07 0.08 -0.01
DAYS >= .01 11
DAYS >= .10 7
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.58 06/09 TO 06/10
STORM TOTAL 0.40
DEGREE DAYS
HEATING TOTAL 514 538 -24
SINCE 7/1 10264 12011 -1747
COOLING TOTAL 0 0 0
SINCE 1/1 0 0 0
..........................................................
WIND (MPH)
AVERAGE WIND SPEED 3.4
RESULTANT WIND SPEED/DIRECTION 0/210
HIGHEST WIND SPEED/DIRECTION 23/270 DATE 06/26
HIGHEST GUST SPEED/DIRECTION 46/280 DATE 06/26
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.00
NUMBER OF DAYS FAIR 30
NUMBER OF DAYS PC 0
NUMBER OF DAYS CLOUDY 0
AVERAGE RH (PERCENT) 61
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 0
LIGHT RAIN 11 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 4 SLEET 0
FOG 0 FOG W/VIS <= 1/4 MILE 0
HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
LOOKING AHEAD TO JULY 2026. THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 68 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 36 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 74
DEGREES AND THE AVERAGE LOW TEMPERATURE IS 40 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 1.51 INCHES.
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