Climatological Report (Daily)
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CDUS45 KRIW 190750
CLIP60


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
146 AM MDT SUN MAY 19 2013


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

...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR MAY 18 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2013


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         41    312 PM  69    2009  52    -11       47
                                      2007
  MINIMUM         31    128 AM  20    2011  29      2       28
                                      2003
  AVERAGE         36                        40     -4       38

PRECIPITATION (IN)
  YESTERDAY        0.46R         0.34 2004   0.07   0.39     0.02
  MONTH TO DATE    0.85                      1.26  -0.41     0.84
  SINCE MAR 1      5.47                      4.55   0.92     5.75
  SINCE JAN 1      7.81                      8.07  -0.26    10.64

DEGREE DAYS
 HEATING
  YESTERDAY       29                        24      5       27
  MONTH TO DATE  455                       483    -28       49
  SINCE MAR 1   3017                      2797    220       49
  SINCE JUL 1  10884                     10734    150     7923

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE MAR 1      0                         0      0        0
  SINCE JAN 1      0                         0      0        0
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED     7   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    12   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED     0.5


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   100           100 AM
 LOWEST     85          1100 AM
 AVERAGE    93

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


THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   52        70      2002
 MINIMUM TEMPERATURE (F)   29        15      2003


SUNRISE AND SUNSET
MAY 19 2013...........SUNRISE   550 AM MDT   SUNSET   847 PM MDT
MAY 20 2013...........SUNRISE   549 AM MDT   SUNSET   848 PM MDT


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




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