411
CXUS55 KRIW 021849
CLMP60

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1149 AM MST MON NOV 02 2026

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

...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             74   10/02/2010
 LOW             -16   10/26/2020
HIGHEST           71   10/05
LOWEST            18   10/29
AVG. MAXIMUM    54.1               45.5     8.6
AVG. MINIMUM    26.9               21.8     5.1
MEAN            40.5               33.6     6.9
DAYS MAX >= 90     0
DAYS MAX <= 32     0
DAYS MIN <= 32    29
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        5.78   2016
 MINIMUM        0.36   1998
TOTALS          2.07               1.85    0.22     3.48
DAILY AVG.      0.07               0.06    0.01
DAYS >= .01       10
DAYS >= .10        3
DAYS >= .50        1
DAYS >= 1.00       1
GREATEST
 24 HR. TOTAL   1.29   10/10 TO 10/11
 STORM TOTAL    1.25


DEGREE DAYS
HEATING TOTAL    749                972    -223
 SINCE 7/1      1624               2201    -577
COOLING TOTAL      0                  0       0
 SINCE 1/1         2                  0       2
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              2.0
RESULTANT WIND SPEED/DIRECTION   0/320
HIGHEST WIND SPEED/DIRECTION    20/270    DATE  10/09
HIGHEST GUST SPEED/DIRECTION    36/260    DATE  10/09

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.00
NUMBER OF DAYS FAIR           31
NUMBER OF DAYS PC              0
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                3     SLEET                      0
FOG                       0     FOG W/VIS <= 1/4 MILE      0
HAZE                      0

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$