Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 012150
CLMLND

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

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE HUNT FIELD IN LANDER
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 DRIER THAN NORMAL IN LANDER...

THE AVERAGE TEMPERATURE FOR LANDER IN OCTOBER WAS 43.8 DEGREES...
WHICH WAS 1.8 DEGREES BELOW NORMAL. THE WARMEST READING OF THE MONTH
WAS 75 DEGREES ON THE 25TH. THE COLDEST READING WAS 17 DEGREES ON
THE 31ST. ON THE 3RD A LOW TEMPERATURE OF 24 DEGREES BROKE THE
PREVIOUS RECORD OF 27 DEGREES SET IN 2002.

TOTAL PRECIPITATION FOR THE MONTH WAS 1.07 INCHES...WHICH WAS 83
PERCENT OF NORMAL. THE WETTEST 24 HOUR PERIOD DURING THE MONTH WAS
ON THE 14TH...WHEN 0.35 INCHES FELL. NO PRECIPITATION RECORDS WERE
SET DURING THE MONTH. THE TOTAL SNOWFALL FOR OCTOBER WAS 4.5 INCHES.
THE SNOWIEST DAY WAS ON THE 14TH WHEN 2.6 INCHES OF SNOW FELL. THE
HIGHEST WIND GUST WAS 44 MPH ON THE 20TH.

...THE LANDER WY CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1891 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              86   10/03/2010
 LOW              -14   10/29/1917
HIGHEST            75   10/25
LOWEST             17   10/31
AVG. MAXIMUM     58.1              58.5    -0.4
AVG. MINIMUM     29.4              32.7    -3.3
MEAN             43.8              45.6    -1.8
DAYS MAX >= 90      0
DAYS MAX <= 32      0
DAYS MIN <= 32     23
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         4.90   1994
 MINIMUM         0.00   1988
TOTALS           1.07              1.29   -0.22
DAILY AVG.       0.03              0.04   -0.01
DAYS >= .01         6
DAYS >= .10         4
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.35   10/14 TO 10/14

SNOWFALL (INCHES)
TOTALS            4.5               9.8    -5.3
SINCE 7/1         4.5              12.5    -8.0
SNOWDEPTH AVG.      0
DAYS >= 1.0         2

DEGREE_DAYS
HEATING TOTAL     651               602      49
 SINCE 7/1        774               861     -87
COOLING TOTAL       0                 0       0
 SINCE 1/1        292               472    -180
.................................................

WIND (MPH)
AVERAGE WIND SPEED              6.1
RESULTANT WIND SPEED/DIRECTION   1/245
HIGHEST WIND SPEED/DIRECTION    36/250    DATE  10/20
HIGHEST GUST SPEED/DIRECTION    44/210    DATE  10/20

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           23
NUMBER OF DAYS PC              5
NUMBER OF DAYS CLOUDY          3

AVERAGE RH (PERCENT)     52

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                1     SNOW                       2
LIGHT SNOW                5     SLEET                      0
FOG                       5     FOG W/VIS <= 1/4 MILE      2
HAZE                     10

-  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 52 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 27 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 0.86 INCHES.

$$


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