733
CXUS55 KRIW 022359
CLMCPR
CYSCLMCPR 000
TTAA00 KRIW 021836
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
241 PM MST MON NOV 2 2009
...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE NATRONA COUNTY
INTERNATIONAL AIRPORT NEAR CASPER FOR THE MONTH OF OCTOBER 2009...
...OFFICIAL CLIMATE DATA FOR THE MONTH OF OCTOBER 2009 WILL BE
AVAILABLE APPROXIMATELY IN DECEMBER 2009 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.CRH.NOAA.GOV/RIW/CLIMATE/...
..CASPER EXPERIENCES COLDEST OCTOBER ON RECORD
THE AVERAGE TEMPERATURE FOR CASPER IN SEPTEMBER WAS 37.0 DEGREES
WHICH WAS 8.7 DEGREES BELOW THE NORMAL AVERAGE TEMPERATURE OF
45.7...AND MAKES OCTOBER 2009 THE COLDEST OCTOBER ON RECORD. THE
HIGHEST READING WAS 75 DEGREES...WHICH OCCURRED ON THE 18TH. THE
LOWEST READING WAS 11 DEGREES...WHICH OCCURRED ON THE 10TH. RECORD
LOWS WERE SET ON THE 3RD (22 DEGREES)...THE 9TH (12 DEGREES)...THE
10TH (11 DEGREES)...AND THE 11TH (16 DEGREES).
TOTAL PRECIPITATION FOR THE MONTH WAS 1.27 INCHES...WHICH WAS 0.13
INCHES ABOVE THE NORMAL AMOUNT FOR OCTOBER OF 1.14 INCHES. CASPER
RECEIVED 13.8 INCHES OF SNOWFALL IN OCTOBER...WHICH IS 6.7 INCHES
ABOVE THE AVERAGE OCTOBER SNOWFALL OF 7.1 INCHES...AND MAKES OCTOBER
2009 THE 7TH SNOWIEST OCTOBER ON RECORD.
..THE CASPER CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2009
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1939 TO 2009
WEATHER OBSERVED NORMAL DEPART
VALUE DATE(S) VALUE FROM
NORMAL
............................................
TEMPERATURE (F)
RECORD
HIGH 87 10/05/1993
10/01/1992
LOW -3 10/30/1971
HIGHEST 75 10/18 MM MM
LOWEST 11 10/10 MM MM
AVG. MAXIMUM 48.2 59.5 -11.3
AVG. MINIMUM 25.8 31.8 -6.0
MEAN 37.0 45.7 -8.7
DAYS MAX >= 90 0
DAYS MAX <= 32 6
DAYS MIN <= 32 27
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 4.62 1998
MINIMUM T 1956
TOTALS 1.27 1.14 0.13
DAILY AVG. 0.04 0.04 0.00
DAYS >= .01 12
DAYS >= .10 5
DAYS >= .50 0
DAYS >= 1.00 0
SNOWFALL (INCHES)
TOTALS 13.8 7.1 6.7
SINCE 7/1 15.1 9.1 6.0
DAYS >= 1.0 3
DEGREE_DAYS
HEATING TOTAL 860 582 278
SINCE 7/1 1151 856 295
COOLING TOTAL 0 0 0
SINCE 1/1 221 428 -207
.............................................
WIND (MPH)
AVERAGE WIND SPEED 10.4
HIGHEST WIND SPEED/DIRECTION 47/020 DATE 10/28
HIGHEST GUST SPEED/DIRECTION 114/210 DATE 10/28
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
NUMBER OF DAYS FAIR 12
NUMBER OF DAYS PC 11
NUMBER OF DAYS CLOUDY 8
AVERAGE RH (PERCENT) 67
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 1
LIGHT RAIN 8 FREEZING RAIN 0
LT FREEZING RAIN 3 HAIL 0
HEAVY SNOW 1 SNOW 4
LIGHT SNOW 13 SLEET 0
FOG 16 FOG W/VIS <= 1/4 MILE 6
HAZE 6
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
LOOKING AHEAD TO NOVEMBER 2009. THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 51 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 26 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 37
DEGREES...AND THE AVERAGE LOW IS 17 DEGREES. THE AVERAGE MONTHLY
PRECIPITATION IS 0.82 INCHES.
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