Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 010855
CLMCPR

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
149 AM MDT WED JUN 1 2016

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE NATRONA COUNTY
INTERNATIONAL AIRPORT NEAR CASPER FOR THE MONTH OF MAY 2016...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF MAY 2016 WILL BE AVAILABLE
APPROXIMATELY IN JULY 2016 FROM THE NATIONAL CLIMATIC DATA CENTER
(HTTP://WWW.NCDC.NOAA.GOV/OL/CLIMATEDATA.HTML).
UNOFFICIAL ASOS DAILY SUMMARIES ARE AVAILABLE ON THE INTERNET AT
HTTP://WWW.WEATHER.GOV/CLIMATE/INDEX.PHP?WFO=RIW

...MAY WAS COOLER AND WETTER THAN NORMAL IN CASPER...

THE AVERAGE TEMPERATURE FOR CASPER IN MAY WAS 49.8 DEGREES... WHICH
WAS 2.4 DEGREES BELOW NORMAL. THE WARMEST READING OF THE MONTH WAS
81 DEGREES ON THE 21ST. THE COLDEST READING WAS 27 DEGREES ON THE
12TH. A NEW RECORD LOW OF 30 DEGREES WAS SET ON THE 24TH...TYING
THE PREVIOUS RECORD SET IN 1986.

TOTAL PRECIPITATION FOR THE MONTH WAS 3.01 INCHES...WHICH WAS 149
PERCENT OF NORMAL. THE WETTEST 24 HOUR PERIOD OF THE MONTH WAS THE
6TH AND 7TH...WHEN 1.13 OF AN INCH OF PRECIPITATION FELL. A NEW
RECORD WAS SET ON THE 6TH...WHEN 0.92 OF AN INCH FELL...BREAKING THE
PREVIOUS RECORD OF 0.43 SET IN 1975. THE HIGHEST WIND GUST WAS 52
MPH ON THE 24TH.

...THE CASPER WY CLIMATE SUMMARY FOR THE MONTH OF MAY 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1939 TO 2016

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              95   05/29/2003
 LOW               16   05/12/1953
HIGHEST            81   05/21
LOWEST             27   05/12
AVG. MAXIMUM     63.4              67.1    -3.7
AVG. MINIMUM     36.1              37.2    -1.1
MEAN             49.8              52.2    -2.4
DAYS MAX >= 90      0
DAYS MAX <= 32      0
DAYS MIN <= 32      7
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.46   1978
 MINIMUM         0.30   1966
TOTALS           3.01              2.02    0.99
DAILY AVG.       0.10              0.07    0.03
DAYS >= .01         9
DAYS >= .10         8
DAYS >= .50         2
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    1.13   05/06 TO 05/07

SNOWFALL (INCHES)
TOTALS            0.0               2.9    -2.9
SINCE 7/1        86.6              74.8    11.8
DAYS >= 1.0         0

DEGREE_DAYS
HEATING TOTAL     464               402      62
 SINCE 7/1       6905              7444    -539
COOLING TOTAL       0                 4      -4
 SINCE 1/1          0                 4      -4
.................................................

WIND (MPH)
AVERAGE WIND SPEED              10.3
RESULTANT WIND SPEED/DIRECTION   1/251
HIGHEST WIND SPEED/DIRECTION    39/230    DATE  05/24
HIGHEST GUST SPEED/DIRECTION    52/240    DATE  05/24

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           16
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     61

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       3
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       9     FOG W/VIS <= 1/4 MILE      0
HAZE                      4

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

LOOKING AHEAD TO JUNE 2016...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 72 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 43 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 85
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 51. THE AVERAGE MONTHLY
PRECIPITATION IS 1.38 INCHES.

$$


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