Climatological Report (Daily)
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809
CDUS45 KRIW 300730
CLIP60

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
130 AM MDT THU JUL 30 2026

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

...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR JULY 29 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         79   1:31 PM  82    2006  74      5       77
  MINIMUM         45   5:01 AM  28    2015  40      5       43
  AVERAGE         62                        57      5       60

PRECIPITATION (IN)
  YESTERDAY        0.00          0.60 2017   0.04  -0.04     0.00
  MONTH TO DATE    0.85                      1.42  -0.57     0.49
  SINCE JUN 1      2.96                      3.80  -0.84     1.14
  SINCE JAN 1     11.20                     13.83  -2.63    10.37

DEGREE DAYS
 HEATING
  YESTERDAY        3                         8     -5        5
  MONTH TO DATE  111                       278   -167      216
  SINCE JUN 1    625                       816   -191      658
  SINCE JUL 1    111                       278   -167      216

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    2                         0      2        1
  SINCE JUN 1      2                         0      2        1
  SINCE JAN 1      2                         0      2        1
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION    NW (300)
  HIGHEST GUST SPEED    25   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED     2.1


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    90           5:00 AM
 LOWEST     24           4:00 PM
 AVERAGE    57

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


THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   74        82      2000
                                             2012
 MINIMUM TEMPERATURE (F)   40        29      2009


SUNRISE AND SUNSET
JULY 30 2026..........SUNRISE   6:06 AM MDT   SUNSET   8:49 PM MDT
JULY 31 2026..........SUNRISE   6:07 AM MDT   SUNSET   8:48 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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