Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 012245
CLMRKS

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
445 PM MDT WED NOV 1 2017

..PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE SWEETWATER COUNTY
AIRPORT NEAR ROCK SPRINGS FOR THE MONTH OF OCTOBER 2017...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF OCTOBER 2017 WILL BE
AVAILABLE APPROXIMATELY IN DECEMBER 2017 FROM THE NATIONAL CENTER
FOR ENVIRONMENTAL INFORMATION (HTTP://WWW.NCEI.NOAA.GOV/OL/
CLIMATEDATA.HTML). UNOFFICIAL ASOS DAILY SUMMARIES ARE AVAILABLE ON
THE INTERNET AT HTTP://WWW.WEATHER.GOV/CLIMATE/INDEX.PHP?WFO=RIW...

...OCTOBER WAS COLDER AND MUCH DRIER THAN NORMAL IN ROCK SPRINGS...

THE AVERAGE TEMPERATURE FOR ROCK SPRINGS IN OCTOBER WAS 41.7
DEGREES...WHICH WAS 2.7 DEGREES BELOW NORMAL. THE WARMEST READING OF
THE MONTH WAS 67 DEGREES ON THE 19TH. THE COLDEST READING WAS 15
DEGREES ON THE 31ST. NO TEMPERATURE RECORDS WERE SET DURING THE
MONTH.

TOTAL PRECIPITATION FOR THE MONTH WAS 0.02 INCHES. THAT IS ONLY 2
PERCENT OF THE NORMAL AMOUNT OF 0.87 INCHES...MAKING IT THE 3RD
DRIEST OCTOBER ON RECORD. THE WETTEST 24 HOUR PERIOD WAS THE
14TH...WHEN 0.02 OF AN INCH FELL. NO PRECIPITATION RECORDS WERE SET
DURING THE MONTH. THE HIGHEST WIND GUST WAS 55 MPH ON THE 20TH.

...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR THE MONTH OF OCTOBER
2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1948 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              80   10/03/2010
 LOW                3   10/30/1991
HIGHEST            67   10/19
LOWEST             15   10/31
AVG. MAXIMUM     55.5              56.5    -1.0
AVG. MINIMUM     28.0              32.3    -4.3
MEAN             41.7              44.4    -2.7
DAYS MAX >= 90      0
DAYS MAX <= 32      0
DAYS MIN <= 32     25
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         2.81   1949
 MINIMUM         0.00   1952
TOTALS           0.02              0.87   -0.85
DAILY AVG.       0.00              0.03   -0.03
DAYS >= .01         1
DAYS >= .10         0
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.03   09/30 TO 10/01
                        10/01 TO 10/01
                        10/01 TO 10/02

DEGREE_DAYS
HEATING TOTAL     712               639      73
 SINCE 7/1       1038               967      71
COOLING TOTAL       0                 0       0
 SINCE 1/1        394               286     108
.................................................

WIND (MPH)
AVERAGE WIND SPEED              12.5
RESULTANT WIND SPEED/DIRECTION   7/252
HIGHEST WIND SPEED/DIRECTION    40/260    DATE  10/22
HIGHEST GUST SPEED/DIRECTION    55/250    DATE  10/20

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           24
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     43

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                3     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                3     SLEET                      0
FOG                       2     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 NOVEMBER 2017...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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