Climatological Report (Daily)
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909
CDUS45 KRIW 190045
CLICPR

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT SAT JUL 18 2026

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

...THE CASPER WY CLIMATE SUMMARY FOR JULY 18 2026...
VALID TODAY AS OF 0600 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1939 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         99   2:27 PM 103    1998  90      9       84
  MINIMUM         59   5:04 AM  44    1949  54      5       55
                                      1980
                                      2005
  AVERAGE         79                        72      7       70

PRECIPITATION (IN)
  TODAY            0.00          0.34 1941   0.04  -0.04      T
  MONTH TO DATE    0.05                      0.70  -0.65     0.45
  SINCE JUN 1      0.60                      2.04  -1.44     0.98
  SINCE JAN 1      4.25                      7.55  -3.30     5.90

SNOWFALL (IN)
  TODAY           MM                         0.0   MM        0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE JUN 1      0.0                       0.1   -0.1      0.0
  SINCE JUL 1      0.0                       0.0    0.0      0.0
  SNOW DEPTH      MM

DEGREE DAYS
 HEATING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         9     -9        5
  SINCE JUN 1     92                       135    -43       96
  SINCE JUL 1      0                         9     -9        5

 COOLING
  TODAY           14                         7      7        5
  MONTH TO DATE  162                       102     60      123
  SINCE JUN 1    197                       153     44      198
  SINCE JAN 1    198                       157     41      198
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION    NE (40)
  AVERAGE WIND SPEED     5.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    87
 LOWEST     15
 AVERAGE    51

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


THE CASPER WY CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   90       101      1998
 MINIMUM TEMPERATURE (F)   54        45      1972
                                             2008


SUNRISE AND SUNSET
JULY 18 2026..........SUNRISE   5:43 AM MDT   SUNSET   8:40 PM MDT
JULY 19 2026..........SUNRISE   5:44 AM MDT   SUNSET   8:40 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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