Climatological Report (Monthly)
Issued by NWS

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953
CXUS55 KRIW 010954
CLMLND

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
216 AM MDT SAT OCT 1 2016

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE HUNT FIELD IN LANDER
FOR THE MONTH OF SEPTEMBER 2016...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF SEPTEMBER 2016 WILL BE
AVAILABLE APPROXIMATELY IN NOVEMBER 2016 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

...LANDER WAS WETTER THAN NORMAL IN SEPTEMBER...

THE AVERAGE TEMPERATURE FOR LANDER IN SEPTEMBER WAS 59.3
DEGREES...WHICH WAS 0.7 DEGREES ABOVE NORMAL. THE WARMEST READING OF
THE MONTH WAS 89 DEGREES ON THE 1ST. A RECORD HIGH OF 88
DEGREES OCCURRED ON THE 20TH...TYING THE PREVIOUS RECORD...SET IN
1956. THE COLDEST READING WAS 35 DEGREES ON THE 25TH.

TOTAL PRECIPITATION FOR THE MONTH WAS 1.68...WHICH WAS 160 PERCENT OF
NORMAL. THE WETTEST 24 HOUR PERIOD DURING THE MONTH WAS THE
24TH...WHEN 0.73 OF AN INCH OF PRECIPITATION FELL. NO
PRECIPITATION RECORDS WERE SET DURING THE MONTH. THE HIGHEST WIND
GUST WAS 49 MPH ON THE 3RD.

...THE LANDER WY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1891 TO 2016

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              95   09/05/2013
 LOW                7   09/22/1895
HIGHEST            89   09/01
LOWEST             35   09/25
AVG. MAXIMUM     73.2              72.8     0.4
AVG. MINIMUM     45.4              44.4     1.0
MEAN             59.3              58.6     0.7
DAYS MAX >= 90      0
DAYS MAX <= 32      0
DAYS MIN <= 32      0
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         5.64   1923
 MINIMUM            T   2010
                        1932
                        1914
TOTALS           1.68              1.05    0.63
DAILY AVG.       0.06              0.04    0.02
DAYS >= .01         8
DAYS >= .10         6
DAYS >= .50         1
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.73   09/24 TO 09/24

SNOWFALL (INCHES)
TOTALS            0.0               2.7    -2.7
SINCE 7/1         0.0               2.7    -2.7
SNOWDEPTH AVG.      0
DAYS >= 1.0         0

DEGREE_DAYS
HEATING TOTAL     201               219     -18
 SINCE 7/1        253               259      -6
COOLING TOTAL      34                27       7
 SINCE 1/1        562               472      90
.................................................

WIND (MPH)
AVERAGE WIND SPEED              6.7
RESULTANT WIND SPEED/DIRECTION   3/249
HIGHEST WIND SPEED/DIRECTION    37/310    DATE  09/03
HIGHEST GUST SPEED/DIRECTION    49/300    DATE  09/03

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           22
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                       5
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       6     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 OCTOBER 2016...THE AVERAGE HIGH TEMPERATURE ON
THE FIRST OF THE MONTH IS 67 DEGREES...AND THE AVERAGE LOW
TEMPERATURE IS 39 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH
IS 50 DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 25 DEGREES. THE
AVERAGE MONTHLY PRECIPITATION IS 1.37 INCHES.

$$



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