Climatological Report (Monthly)
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415
CXUS55 KRIW 020152
CLMRKS

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
930 AM MST SUN NOV 01 2020

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE SOUTHWEST WYOMING
REGIONAL AIRPORT NEAR ROCK SPRINGS FOR THE MONTH OF OCTOBER 2020...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF OCTOBER 2020 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

...ROCK SPRINGS SAW AVERAGE TEMPERATURE BUT DRIER FOR OCTOBER...

THE AVERAGE TEMPERATURE FOR ROCK SPRINGS IN OCTOBER WAS 44.8
DEGREES...WHICH WAS 0.4 DEGREES ABOVE NORMAL. THE WARMEST READING OF
THE MONTH WAS 76 DEGREES ON THE 8TH. THE COLDEST READING WAS -10
DEGREES ON 26TH WHICH ALSO BREAKS A MONTHLY RECORD LOW TEMPERATURE
OF 15 THAT WAS SET BACK IN 1996. THERE WERE A FEW DAILY TEMPERATURE
RECORDS SET IN OCTOBER AT ROCK SPRINGS. ON THE 25TH A -5 BROKE A 13
SET BACK IN 1975. ALSO ON THE 25TH A COLD RECORD HIGH WAS SET WHEN 9
SHATTERED A 28 SET IN 1997. LASTLY A -10 CRUSHED A 15 DEGREE RECORD
SET IN 1996.

TOTAL PRECIPITATION FOR THE MONTH WAS 0.07 INCHES...WHICH IS 8
PERCENT OF NORMAL. THE WETTEST 24 HOUR PERIOD WAS ON THE 11TH WHEN
0.05 INCHES FELL. THIS TIES 2012 AS THE 7TH DRIEST OCTOBER ON
RECORD. THE HIGHEST WIND GUST WAS 60 MPH ON THE 12TH.

...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2020...

CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1948 TO 2020

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             80   10/03/2010
 LOW             -10   10/26/2020
HIGHEST           76   10/08
LOWEST           -10R  10/26
AVG. MAXIMUM    58.2               56.5     1.7
AVG. MINIMUM    31.4               32.3    -0.9
MEAN            44.8               44.4     0.4
DAYS MAX >= 90     0
DAYS MAX <= 32     2
DAYS MIN <= 32    12
DAYS MIN <= 0      2

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        2.81   1949
 MINIMUM        0.00   1952
TOTALS          0.07               0.87   -0.80     0.12
DAILY AVG.      0.00               0.03   -0.03
DAYS >= .01        3
DAYS >= .10        0
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.05   10/11 TO 10/11
 STORM TOTAL    0.05

SNOWFALL (INCHES)
TOTALS            MM                4.5      MM
SINCE 7/1         MM                5.6      MM
SNOWDEPTH AVG.    MM
DAYS >= 1.0       MM

DEGREE DAYS
HEATING TOTAL    619                639     -20
 SINCE 7/1       898                967     -69
COOLING TOTAL      0                  0       0
 SINCE 1/1       457                286     171
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              15.1
RESULTANT WIND SPEED/DIRECTION  11/260
HIGHEST WIND SPEED/DIRECTION    45/250    DATE  10/12
HIGHEST GUST SPEED/DIRECTION    60/250    DATE  10/12

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.12
NUMBER OF DAYS FAIR           26
NUMBER OF DAYS PC              3
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     42

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                4     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                3     SLEET                      0
FOG                       4     FOG W/VIS <= 1/4 MILE      1
HAZE                      0

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

LOOKING AHEAD TO NOVEMBER 2020...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 49 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 27 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 33
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 15 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 0.49 INCHES.

$$



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