Climatological Report (Annual)
Issued by NWS Riverton, WY

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CXUS55 KRIW 082213 RRB
CLARIW

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
208 PM MST WED JAN 08 2025

...PRELIMINARY ANNUAL CLIMATE SUMMARY FOR RIVERTON FOR 2024...

ANNUAL: PERIOD OF RECORD IS 29 YEARS (1995-PRESENT)

...5TH WARMEST YEAR AT 46.9F (TIED WITH 2015)
...8TH DRIEST YEAR WITH 6.27 INCHES
...5TH LEAST SNOWIEST YEAR WITH 21.9 INCHES

...LATEST 90 DEGREE DAY ON RECORD WITH 90 DEGREES ON THE 29TH.
(PREVIOUS WAS THE 19TH IN 2010)

...MONTHLY TEMPERATURES: 6TH COLDEST JANUARY, 5TH WARMEST FEBRUARY,
5TH WARMEST APRIL, 6TH COLDEST MAY, 6TH WARMEST JUNE, 9TH COLDEST
JULY, 2ND WARMEST SEPTEMBER (TIE W/2022), 2ND WARMEST OCTOBER, AND
2ND WARMEST DECEMBER

...MONTHLY PRECIPITATION: 7TH WETTEST JANUARY, 1ST WETTEST FEBRUARY,
4TH DRIEST APRIL, 10TH WETTEST MAY, 8TH DRIEST JUNE, 10TH DRIEST
AUGUST, 3RD DRIEST SEPTEMBER (TIE W/2012), 9TH DRIEST NOVEMBER AND
6TH DRIEST DECEMBER

...MONTHLY SNOWFALL: 9TH LEAST JANUARY, 9TH SNOWIEST FEBRUARY, 8TH
LEAST MARCH, 2ND LEAST APRIL, 10TH SNOWIEST MAY, 8TH SNOWIEST
OCTOBER, 4TH LEAST NOVEMBER AND DECEMBER.


...THE RIVERTON WY CLIMATE SUMMARY FOR THE YEAR OF 2024...

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            102   07/18/2006
                       07/15/2006
                       07/13/2005
 LOW             -31   12/22/2022
HIGHEST           99                 MM
LOWEST           -27                 MM
AVG. MAXIMUM    60.3                        2.3
AVG. MINIMUM    33.4                        2.3
MEAN            46.9

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       14.97   2017
 MINIMUM        2.87   2012
TOTALS          6.27               8.56   -2.29

SNOWFALL (INCHES)
RECORDS
 TOTAL          81.5   2023
TOTALS          21.9

DEGREE DAYS
HEATING TOTAL   7132
COOLING TOTAL    610
..............................................................

WIND (MPH)
HIGHEST WIND SPEED/DIRECTION    47/310    DATE  08/13
HIGHEST GUST SPEED/DIRECTION    60/310    DATE  04/06


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             28     MIXED PRECIP               0
HEAVY RAIN                7     RAIN                      15
LIGHT RAIN               67     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                4     SNOW                      11
LIGHT SNOW               45     SLEET                      0
FOG                      62     FOG W/VIS <= 1/4 MILE     17
HAZE                     32

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$