Climatological Report (Monthly)
Issued by NWS Riverton, WY

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CXUS55 KRIW 011619
CLMRIW

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1019 AM MDT WED NOV 01 2023

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

...OFFICIAL CLIMATE DATA FOR THE MONTH OF OCTOBER 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 WETTER THAN NORMAL IN OCTOBER....

THE AVERAGE TEMPERATURE FOR RIVERTON IN OCTOBER WAS 45.9 DEGREES
WHICH WAS 1.2 DEGREES ABOVE NORMAL. THE WARMEST READING FOR THE
MONTH WAS 74 DEGREES ON THE 17TH...AND TIED THE 2003 RECORD. THE
19TH HIT 72 AND BROKE 71 DEGREES FROM 2003. THE COLDEST READING WAS
13 DEGREES ON THE 30TH.

PRECIPITATION FOR THE MONTH WAS 2.23 INCHES...WHICH IS 269 PERCENT
OF NORMAL. IT WAS THE 2ND WETTEST OCTOBER ON RECORD. THE WETTEST 24-
HOURS WAS THE 11-12TH WHEN 1.96 INCHES FELL. THE 11TH HAD 1.11
INCHES WHICH BROKE 0.42 FROM 2008. THE 12TH HAD 0.95 INCHES WHICH
BROKE THE 2021 RECORD OF 0.21.

SNOWFALL FOR THE MONTH WAS 1.3 INCHES. THE SNOWIEST 24-HOUR PERIOD
WAS THE 28TH WITH 0.8 INCHES OF SNOW. THE HIGHEST WIND GUST WAS 45
MPH AND OCCURRED ON THE 1ST FROM THE SOUTHWEST AND ON THE 17TH FROM
THE WEST.

...THE RIVERTON WY CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 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             82   10/02/2012
                       10/03/2010
                       10/09/2003
 LOW              -9   10/30/2019
HIGHEST           74   10/17
LOWEST            13   10/30
AVG. MAXIMUM    57.7               58.0    -0.3
AVG. MINIMUM    34.1               31.5     2.6
MEAN            45.9               44.7     1.2
DAYS MAX >= 90     0
DAYS MAX <= 32     4
DAYS MIN <= 32     8
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        2.83   1998
 MINIMUM        0.03   2001
TOTALS          2.23               0.83    1.40     0.42
DAILY AVG.      0.07               0.03    0.05
DAYS >= .01        7
DAYS >= .10        2
DAYS >= .50        2
DAYS >= 1.00       1
GREATEST
 24 HR. TOTAL   1.96   10/11 TO 10/12
 STORM TOTAL    1.11

SNOWFALL (INCHES)
TOTALS           1.3                 MM      MM
SINCE 7/1        1.3                 MM      MM
SNOWDEPTH AVG.     T
DAYS >= 1.0        0

DEGREE DAYS
HEATING TOTAL    586                628     -42
 SINCE 7/1       722                871    -149
COOLING TOTAL      0                  0       0
 SINCE 1/1       401                499     -98
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              7.0
RESULTANT WIND SPEED/DIRECTION   2/340
HIGHEST WIND SPEED/DIRECTION    33/210    DATE  10/01
HIGHEST GUST SPEED/DIRECTION    45/200    DATE  10/01
                                45/290          10/17

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.28
NUMBER OF DAYS FAIR           22
NUMBER OF DAYS PC              5
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     62

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       2
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                2     SLEET                      0
FOG                       5     FOG W/VIS <= 1/4 MILE      1
HAZE                      1

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

LOOKING AHEAD TO NOVEMBER 2023...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 50 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 25 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 35
DEGREES AND THE AVERAGE LOW TEMPERATURE IS 13. THE AVERAGE MONTHLY
PRECIPITATION IS 0.34 INCHES.

$$


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