Climatological Report (Annual)
Issued by NWS Cheyenne, WY

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000
CXUS55 KCYS 212229 CCA
CLACYS

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
113 PM MST THU JAN 10 2013

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

...THE CHEYENNE WY CLIMATE SUMMARY FOR THE YEAR OF 2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2013

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH             100   06/23/1954
                        07/11/1939
                        07/14/1881
 LOW              -38   01/09/1875
HIGHEST            96   06/23                         94
LOWEST             -4   12/25                        -24
AVG. MAXIMUM     62.5              58.6     3.9     58.2
AVG. MINIMUM     35.5              34.3     1.2     33.3
MEAN             49.0              46.5     2.5     45.7
DAYS MAX >= 90     26              10.4               15
DAYS MAX <= 32     27              32.8               30
DAYS MIN <= 32    160             164.1              178
DAYS MIN <= 0       3               8.1               12

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        23.69   1942
 MINIMUM         5.94   1964
TOTALS          10.14             15.94   -5.80    19.31
DAILY AVG.          T              0.04   -0.04     0.05
DAYS >= .01        82             103.8              101
DAYS >= .10        25              41.0               47
DAYS >= .50         3               8.2                9
DAYS >= 1.00        2               1.8                3
GREATEST
 24 HR. TOTAL    1.77   06/06 TO 06/06              2.54

SNOWFALL (INCHES)
RECORDS
 TOTAL          121.5   1980
TOTALS           42.1              60.3   -18.2     68.7
SINCE 7/1        25.4              22.7     2.7     35.0
DAYS >= TRACE      45              45.0               78
DAYS >= 1.0        14              18.4               23
GREATEST
 SNOW DEPTH         7   12/20                          7
                        12/19
 24 HR TOTAL     10.7   12/18 TO 12/19               9.5

DEGREE_DAYS
HEATING TOTAL    6304              7111    -807     7318
 SINCE 7/1         MM              2903      MM       MM
COOLING TOTAL     568               349     219      431
 SINCE 1/1        568               348     220      431
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              11.6
HIGHEST WIND SPEED/DIRECTION    54/270    DATE  01/19
HIGHEST GUST SPEED/DIRECTION    72/220    DATE  06/25

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR          265
NUMBER OF DAYS PC             85
NUMBER OF DAYS CLOUDY         16

AVERAGE RH (PERCENT)     48

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             30     MIXED PRECIP               0
HEAVY RAIN                9     RAIN                      13
LIGHT RAIN               87     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       3
HEAVY SNOW                3     SNOW                      13
LIGHT SNOW               45     SLEET                      0
FOG                      81     FOG W/VIS <= 1/4 MILE     20
HAZE                     31

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

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