647 
CDUS45 KRIW 220738
CLICPR


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
136 AM MDT THU SEP 22 2011


...................................

...THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 21 2011...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1939 TO 2011


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         66        MM  85    1966  71     -5       80
  MINIMUM         25        MM  21    1983  39    -14       34
  AVERAGE         46                        55     -9       57

PRECIPITATION (IN)
  YESTERDAY        0.00          1.09 1962   0.04  -0.04     0.00
  MONTH TO DATE    0.10                      0.71  -0.61     0.19
  SINCE SEP 1      0.10                      0.71  -0.61     0.19
  SINCE JAN 1      9.93                      9.79   0.14     9.75

SNOWFALL (IN)
  YESTERDAY        0.0                       0.1   -0.1      0.0
  MONTH TO DATE    0.0                       0.8   -0.8      0.0
  SINCE SEP 1      0.0                       0.8   -0.8      0.0
  SINCE JUL 1      0.0                       0.8   -0.8      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       19                        10      9        8
  MONTH TO DATE  133                       129      4      117
  SINCE SEP 1    133                       129      4      117
  SINCE JUL 1    134                       175    -41      175

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE   10                        24    -14       12
  SINCE SEP 1     10                        24    -14       12
  SINCE JAN 1    507                       421     86      416
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED     8   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    MM   HIGHEST GUST DIRECTION    MM
  AVERAGE WIND SPEED     4.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    75           300 AM
 LOWEST     13           500 PM
 AVERAGE    44

..........................................................


THE CASPER WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   71        87      2007
                                             1992
                                             1966
 MINIMUM TEMPERATURE (F)   39        25      2000


SUNRISE AND SUNSET
SEPTEMBER 22 2011.....SUNRISE   653 AM MDT   SUNSET   704 PM MDT
SEPTEMBER 23 2011.....SUNRISE   654 AM MDT   SUNSET   702 PM MDT


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




$$