Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 020857 AAA
CLMBYG

CLIMATE REPORT...AMENDED
NATIONAL WEATHER SERVICE RIVERTON WY
232 PM MDT THU JUN 1 2017

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE JOHNSON COUNTY
AIRPORT NEAR BUFFALO FOR THE MONTH OF MAY 2017...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF MAY 2017 WILL BE
AVAILABLE APPROXIMATELY IN JULY 2017 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 WARMER AND SLIGHTLY WETTER IN BUFFALO...

THE AVERAGE TEMPERATURE FOR BUFFALO IN MAY WAS 54.0 DEGREES...WHICH
WAS 2.0 DEGREES ABOVE NORMAL. IT WAS THE 4TH WARMEST MAY ON RECORD.
THE WARMEST READING OF THE MONTH WAS 86 DEGREES ON THE 6TH...
SETTING A NEW RECORD HIGH. THIS BROKE THE PREVIOUS RECORD OF 76
DEGREES...SET IN 2005. A RECORD HIGH OF 75 DEGREES WAS SET ON THE
11TH...BREAKING THE PREVIOUS RECORD OF 74...SET IN 2007. A RECORD
HIGH OF 83 DEGREES WAS SET ON THE 24TH BREAKING THE PREVIOUS RECORD
OF 76 SET IN 2001. THE COLDEST READING WAS 33 DEGREES ON THE 20TH.

TOTAL PRECIPITATION FOR THE MONTH WAS 2.65 INCHES...WHICH WAS 105
PERCENT OF NORMAL. THIS MAKES IT THE 8TH WETTEST MAY ON RECORD. THE
WETTEST 24 HOUR PERIOD OF THE MONTH WAS ON THE 17TH...WHEN 1.96
INCHES FELL. THIS SET A NEW RECORD...BREAKING THE PREVIOUS RECORD OF
1.74 INCHES SET IN 2000. THE HIGHEST WIND GUST WAS 52 MPH ON THE
22ND.

...THE BUFFALO WY CLIMATE SUMMARY FOR THE MONTH OF MAY 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              91   05/13/2001
 LOW               17   05/02/2005
HIGHEST            86   05/06
LOWEST             33   05/20
AVG. MAXIMUM     65.3              63.4     1.9
AVG. MINIMUM     42.8              40.6     2.2
MEAN             54.0              52.0     2.0
DAYS MAX >= 90      0
DAYS MAX <= 32      0
DAYS MIN <= 32      0
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.74   2011
 MINIMUM         0.31   2009
TOTALS           2.65              2.53    0.12
DAILY AVG.       0.09
DAYS >= .01        13
DAYS >= .10         3
DAYS >= .50         1
DAYS >= 1.00        1
GREATEST
 24 HR. TOTAL    1.96   05/17 TO 05/17

DEGREE_DAYS
HEATING TOTAL     342               410     -68
 SINCE 7/1       6439              7254    -815
COOLING TOTAL      11                 7       4
 SINCE 1/1         11                 7       4
.................................................

WIND (MPH)
AVERAGE WIND SPEED              11.1
HIGHEST WIND SPEED/DIRECTION    44/350    DATE  05/22
HIGHEST GUST SPEED/DIRECTION    52/350    DATE  05/22

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           17
NUMBER OF DAYS PC              6
NUMBER OF DAYS CLOUDY          8

AVERAGE RH (PERCENT)     54

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       2
LIGHT RAIN               13     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                2     SLEET                      0
FOG                       5     FOG W/VIS <= 1/4 MILE      0
HAZE                      1

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

LOOKING AHEAD TO JUNE 2017...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 68 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 44 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 81
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 53 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 2.28 INCHES.

$$



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