Climatological Report (Daily)
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890
CDUS45 KRIW 290731
CLILND

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
131 AM MDT TUE SEP 29 2026

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

...THE LANDER WY CLIMATE SUMMARY FOR SEPTEMBER 28 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1891 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         63   3:21 AM  89    2010  68     -5       78
  MINIMUM         49  11:53 PM  22    1985  40      9       51
  AVERAGE         56                        54      2

PRECIPITATION (IN)
  YESTERDAY        0.10          1.37 2014   0.05   0.05     0.05
  MONTH TO DATE    2.18                      0.89   1.29     1.20
  SINCE SEP 1      2.18                      0.89   1.29     1.20
  SINCE JAN 1      8.54                     10.33  -1.79    11.21

SNOWFALL (IN)
  YESTERDAY        0.0           3.2  1985   0.2   -0.2      0.0
  MONTH TO DATE    0.0                       1.3   -1.3      0.0
  SINCE SEP 1      0.0                       1.3   -1.3      0.0
  SINCE JUL 1      0.0                       1.3   -1.3      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        9                        11     -2        0
  MONTH TO DATE   77                       170    -93       94
  SINCE SEP 1     77                       170    -93       94
  SINCE JUL 1     80                       209   -129       99

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE   44                        31     13       42
  SINCE SEP 1     44                        31     13       42
  SINCE JAN 1    714                       483    231      569
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    28   HIGHEST WIND DIRECTION    SW (230)
  HIGHEST GUST SPEED    40   HIGHEST GUST DIRECTION    SW (230)
  AVERAGE WIND SPEED     5.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           2:00 PM
 LOWEST     44          12:00 AM
 AVERAGE    65

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


THE LANDER WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   68        90      2024
 MINIMUM TEMPERATURE (F)   39        23      1985


SUNRISE AND SUNSET
SEPTEMBER 29 2026.....SUNRISE   7:10 AM MDT   SUNSET   6:59 PM MDT
SEPTEMBER 30 2026.....SUNRISE   7:11 AM MDT   SUNSET   6:58 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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