098
CXUS55 KRIW 031753
CLMP60

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1053 AM MST WED JAN 03 2024

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

...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             46   12/12/2014
 LOW             -36   12/22/2022
HIGHEST           42   12/06
LOWEST           -11   12/25
AVG. MAXIMUM    28.4               23.3     5.1
AVG. MINIMUM     8.0                2.7     5.3
MEAN            18.2               13.0     5.2
DAYS MAX >= 90     0
DAYS MAX <= 32    23
DAYS MIN <= 32    31
DAYS MIN <= 0      7

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        5.15   2007
 MINIMUM        0.37   2000
TOTALS          1.17               2.35   -1.18     3.19
DAILY AVG.      0.04               0.08   -0.04
DAYS >= .01       11
DAYS >= .10        5
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.38   12/07 TO 12/08
 STORM TOTAL    0.31


DEGREE DAYS
HEATING TOTAL   1443               1612    -169
 SINCE 7/1      4517               5119    -602
COOLING TOTAL      0                  0       0
 SINCE 1/1         0                  0       0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              1.5
RESULTANT WIND SPEED/DIRECTION   0/320
HIGHEST WIND SPEED/DIRECTION    16/290    DATE  12/02
HIGHEST GUST SPEED/DIRECTION    31/240    DATE  12/07

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)     81

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                0     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                9     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.

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