334
CXUS55 KRIW 011702
CLMRIW

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1041 AM MDT TUE JUL 01 2025

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR RIVERTON FOR THE MONTH OF
JUNE 2025...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF JUNE 2025 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

...RIVERTON WAS WARMER THAN NORMAL IN JUNE....

THE AVERAGE TEMPERATURE FOR RIVERTON IN JUNE WAS 66 DEGREES WHICH
WAS 2.6 DEGREES ABOVE NORMAL. THE WARMEST READING FOR THE MONTH WAS
97 DEGREES ON THE 19TH AND BROKE THE 2021 RECORD OF 95. THE HIGH ON
THE 1ST OF 91 BROKE 89 DEGREES FROM 2020. THE COLDEST READING WAS 39
DEGREES ON THE 23RD AND BROKE THE 2013 RECORD OF 41.

PRECIPITATION FOR THE MONTH WAS 0.90 INCHES...WHICH IS 96 PERCENT OF
NORMAL. THE WETTEST 24-HOURS WAS THE 5TH WHEN 0.34 INCHES FELL. THIS
TIED THE 1999 RECORD. THE HIGHEST WIND GUST WAS 48 MPH FROM THE
SOUTHWEST AND OCCURRED ON THE 20TH.

...THE RIVERTON WY CLIMATE SUMMARY FOR THE MONTH OF JUNE 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1995 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH            100   06/15/2021
 LOW              32   06/04/1998
                       06/04/1998
                       06/03/1998
HIGHEST           97   06/19
LOWEST            39   06/23
AVG. MAXIMUM    81.8               78.7     3.1
AVG. MINIMUM    50.1               48.1     2.0
MEAN            66.0               63.4     2.6
DAYS MAX >= 90     7
DAYS MAX <= 32     0
DAYS MIN <= 32     0
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        3.80   2023
 MINIMUM           T   2012
TOTALS          0.90               0.94   -0.04     0.28
DAILY AVG.      0.03               0.03   -0.00
DAYS >= .01        7
DAYS >= .10        4
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.34   06/05 TO 06/05
 STORM TOTAL    0.34

SNOWFALL (INCHES)
TOTALS           0.0                 MM      MM
SINCE 7/1       30.7                 MM      MM
SNOWDEPTH AVG.     0
DAYS >= 1.0        0

DEGREE DAYS
HEATING TOTAL     78                115     -37
 SINCE 7/1      7234               7927    -693
COOLING TOTAL    116                 67      49
 SINCE 1/1       122                 75      47
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              8.6
RESULTANT WIND SPEED/DIRECTION   2/350
HIGHEST WIND SPEED/DIRECTION    35/220    DATE  06/20
HIGHEST GUST SPEED/DIRECTION    48/210    DATE  06/20

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.16
NUMBER OF DAYS FAIR           26
NUMBER OF DAYS PC              2
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     45

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       3
LIGHT RAIN               11     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       4     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 2025. THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 85 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 52 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 89
DEGREES AND THE AVERAGE LOW TEMPERATURE IS 57. THE AVERAGE MONTHLY
PRECIPITATION IS 0.54 INCHES.

$$