Climatological Report (Daily)
Issued by NWS Riverton, WY

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979
CDUS45 KRIW 170730
CLIRIW

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
130 AM MDT MON AUG 17 2026

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

...THE RIVERTON WY CLIMATE SUMMARY FOR AUGUST 16 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1995 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         85   5:09 PM  95    2002  86     -1       88
  MINIMUM         52   5:50 AM  43    2009  54     -2       65
  AVERAGE         69                        70     -1       77

PRECIPITATION (IN)
  YESTERDAY        T             0.03        0.01  -0.01     0.01
  MONTH TO DATE    0.17                      0.22  -0.05     0.01
  SINCE JUN 1      1.03                      1.70  -0.67     1.22
  SINCE JAN 1      2.46                      6.16  -3.70     5.74

SNOWFALL (IN)
  YESTERDAY        0.0           0.0  2020                   0.0
  MONTH TO DATE    0.0                                       0.0
  SINCE JUN 1      0.0                                       0.0
  SINCE JUL 1      0.0                                       0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE    2                         3     -1        2
  SINCE JUN 1     72                       128    -56       80
  SINCE JUL 1      2                        13    -11        2

 COOLING
  YESTERDAY        4                         6     -2       12
  MONTH TO DATE  140                       111     29      120
  SINCE JUN 1    580                       402    178      505
  SINCE JAN 1    603                       410    193      511
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    NW (320)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED     6.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    89           1:00 AM
 LOWEST     19           4:00 PM
 AVERAGE    54

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


THE RIVERTON WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   86        95      2013
                                             2020
 MINIMUM TEMPERATURE (F)   54        41      2009


SUNRISE AND SUNSET
AUGUST 17 2026........SUNRISE   6:22 AM MDT   SUNSET   8:13 PM MDT
AUGUST 18 2026........SUNRISE   6:23 AM MDT   SUNSET   8:11 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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