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510
CXUS55 KCYS 172310
CLMCYS

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
107 PM MST SAT JAN 17 2015

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

...THE CHEYENNE WY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              69   12/05/1939
 LOW              -28   12/22/1990
                        12/21/1990
                        12/22/1989
HIGHEST            64   12/12        39      25       60
LOWEST            -22   12/30        17     -39      -19
AVG. MAXIMUM     40.8              38.2     2.6     36.6
AVG. MINIMUM     17.6              17.3     0.3     15.7
MEAN             29.2              27.7     1.5     26.2
DAYS MAX >= 90      0               0.0                0
DAYS MAX <= 32      8               8.7                8
DAYS MIN <= 32     31              28.7               26
DAYS MIN <= 0       3               2.7                6

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         2.00   1913
 MINIMUM         0.01   1996
                        1881
TOTALS           0.67              0.49    0.18     0.50
DAYS >= .01         7               6.2     0.8        7
DAYS >= .10         3               1.6     1.4        2
DAYS >= .50         0               0.1    -0.1        0
DAYS >= 1.00        0               0.0     0.0        0
GREATEST
 24 HR. TOTAL    0.36   12/25 TO 12/26

SNOWFALL (INCHES)
RECORDS
 TOTAL           24.4   MM
TOTALS           11.2               8.4     2.8     10.1
SINCE 7/1        22.6              22.7    -0.1     25.7
SNOWDEPTH AVG.      1
DAYS >= TRACE      11               6.8     4.2       14
DAYS >= 1.0         3               2.7     0.3        3
GREATEST
 SNOW DEPTH         7   12/27                          7  12/05
                        12/26
 24 HR TOTAL      7.0   12/25 TO 12/26           12/03 TO 12/04
                                                          12/04 TO 12/04
                                                          12/04 TO 12/04

DEGREE_DAYS
HEATING TOTAL    1105              1155     -50     1196
 SINCE 7/1       2703              2903    -200     2900
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        301               348     -47      520
.....................................................

WIND (MPH)
AVERAGE WIND SPEED              11.6
HIGHEST WIND SPEED/DIRECTION    47/280    DATE  12/21
HIGHEST GUST SPEED/DIRECTION    60/280    DATE  12/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           18
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     57

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                1     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                1     SNOW                       2
LIGHT SNOW               10     SLEET                      0
FOG                       6     FOG W/VIS <= 1/4 MILE      0
HAZE                      6

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

$$




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