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000
CXUS55 KRIW 031809
CLMRIW

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1053 AM MST WED JAN 03 2024

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR RIVERTON FOR THE MONTH OF
DECEMBER 2023...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF DECEMBER 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

...RIVERTON WAS WARMER AND DRIER THAN NORMAL IN DECEMBER....

THE AVERAGE TEMPERATURE FOR RIVERTON IN DECEMBER WAS 23.9 DEGREES
WHICH WAS 4.3 DEGREES ABOVE NORMAL IT WAS THE 5TH WARMEST DECEMBER
ON RECORD. THE WARMEST READING FOR THE MONTH WAS 47 DEGREES ON THE
17TH. THE COLDEST READING WAS 0 DEGREES ON THE 1ST AND 25TH. NO
TEMPERATURE RECORDS WERE BROKEN THIS MONTH.

PRECIPITATION FOR THE MONTH WAS 0.01 INCHES...WHICH IS 4 PERCENT OF
NORMAL. IT WAS THE 2ND DRIEST DECEMBER ON RECORD. THE WETTEST 24-
HOURS WAS THE 23RD WHEN 0.01 INCHES FELL. NO PRECIPITATION RECORDS
WERE BROKEN THIS MONTH.

SNOWFALL FOR THE MONTH WAS 0.6 INCHES. THE SNOWIEST 24-HOUR PERIOD
WAS THE 23RD WITH 0.6 INCHES OF SNOW. NO SNOWFALL RECORDS WERE
BROKEN. THE HIGHEST WIND GUST WAS 53 MPH AND OCCURRED ON THE 3RD
FROM THE NORTHWEST.

...THE RIVERTON WY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1995 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             61   12/01/1995
 LOW             -31   12/22/2022
HIGHEST           47   12/17
LOWEST             0   12/01
                       12/25
AVG. MAXIMUM    33.3               30.8     2.5
AVG. MINIMUM    14.6                8.4     6.2
MEAN            23.9               19.6     4.3
DAYS MAX >= 90     0
DAYS MAX <= 32    15
DAYS MIN <= 32    31
DAYS MIN <= 0      2

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        0.79   2022
 MINIMUM           T   2001
TOTALS          0.01               0.26   -0.25     0.79
DAILY AVG.      0.00               0.01   -0.01
DAYS >= .01        1
DAYS >= .10        0
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.01   12/23 TO 12/23
 STORM TOTAL    0.01

SNOWFALL (INCHES)
TOTALS           0.6                 MM      MM
SINCE 7/1       19.6                 MM      MM
SNOWDEPTH AVG.     1
DAYS >= 1.0        0

DEGREE DAYS
HEATING TOTAL   1264               1407    -143
 SINCE 7/1      2963               3306    -343
COOLING TOTAL      0                  0       0
 SINCE 1/1       401                499     -98
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              5.5
RESULTANT WIND SPEED/DIRECTION   3/280
HIGHEST WIND SPEED/DIRECTION    41/290    DATE  12/03
HIGHEST GUST SPEED/DIRECTION    53/300    DATE  12/03

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.19
NUMBER OF DAYS FAIR           23
NUMBER OF DAYS PC              6
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                0     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                2     SLEET                      0
FOG                       9     FOG W/VIS <= 1/4 MILE      4
HAZE                      4

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

LOOKING AHEAD TO JANUARY 2024. THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 30 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 7 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 32 DEGREES
AND THE AVERAGE LOW TEMPERATURE IS 9. THE AVERAGE MONTHLY
PRECIPITATION IS 0.29 INCHES.

$$