Climatological Report (Daily)
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375
CDUS45 KRIW 150735
CLIRKS

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
135 AM MDT TUE SEP 15 2026

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

...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR SEPTEMBER 14 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1948 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         71   4:13 PM  87    1990  72     -1       72
  MINIMUM         46   6:28 AM  26    1970  45      1       40
  AVERAGE         59                        58      1

PRECIPITATION (IN)
  YESTERDAY        0.02          0.27 2016   0.03  -0.01     0.00
  MONTH TO DATE    0.04                      0.33  -0.29     0.08
  SINCE SEP 1      0.04                      0.33  -0.29     0.08
  SINCE JAN 1      3.09                      5.57  -2.48     3.02

DEGREE DAYS
 HEATING
  YESTERDAY        6                         7     -1        9
  MONTH TO DATE   16                        72    -56       38
  SINCE SEP 1     16                        72    -56       38
  SINCE JUL 1     30                       131   -101       56

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE   21                         8     13       19
  SINCE SEP 1     21                         8     13       19
  SINCE JAN 1    558                       317    241      441
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    30   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    42   HIGHEST GUST DIRECTION     W (270)
  AVERAGE WIND SPEED    15.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  THUNDERSTORM
  RAIN
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    76           5:00 AM
 LOWEST     11           4:00 PM
 AVERAGE    44

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


THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   71        86      1990
 MINIMUM TEMPERATURE (F)   44        24      1970


SUNRISE AND SUNSET
SEPTEMBER 15 2026.....SUNRISE   6:57 AM MDT   SUNSET   7:25 PM MDT
SEPTEMBER 16 2026.....SUNRISE   6:58 AM MDT   SUNSET   7:24 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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