Climatological Report (Daily)
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463
CDUS45 KRIW 210732
CLILND

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
132 AM MDT MON SEP 21 2026

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

...THE LANDER WY CLIMATE SUMMARY FOR SEPTEMBER 20 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   2:52 PM  88    1956  73    -10       80
                                      2016
  MINIMUM         46   7:16 AM  23    1983  43      3       53
  AVERAGE         55                        58     -3

PRECIPITATION (IN)
  YESTERDAY        0.32          1.42 1989   0.04   0.28     0.00
  MONTH TO DATE    2.08                      0.53   1.55     0.36
  SINCE SEP 1      2.08                      0.53   1.55     0.36
  SINCE JAN 1      8.44                      9.97  -1.53    10.37

SNOWFALL (IN)
  YESTERDAY       MM             2.0  1995   0.1   MM        0.0
  MONTH TO DATE    0.0                       0.5   -0.5      0.0
  SINCE SEP 1      0.0                       0.5   -0.5      0.0
  SINCE JUL 1      0.0                       0.5   -0.5      0.0
  SNOW DEPTH      MM

DEGREE DAYS
 HEATING
  YESTERDAY       10                         8      2        0
  MONTH TO DATE   40                        93    -53       63
  SINCE SEP 1     40                        93    -53       63
  SINCE JUL 1     43                       132    -89       68

 COOLING
  YESTERDAY        0                         0      0        2
  MONTH TO DATE   43                        31     12       42
  SINCE SEP 1     43                        31     12       42
  SINCE JAN 1    713                       483    230      569
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     E (90)
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION     E (80)
  AVERAGE WIND SPEED     5.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97          12:00 AM
 LOWEST     56           2:00 PM
 AVERAGE    77

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


THE LANDER WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   72        87      1905
 MINIMUM TEMPERATURE (F)   43        25      1983


SUNRISE AND SUNSET
SEPTEMBER 21 2026.....SUNRISE   7:01 AM MDT   SUNSET   7:14 PM MDT
SEPTEMBER 22 2026.....SUNRISE   7:02 AM MDT   SUNSET   7:12 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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