Climatological Report (Monthly)
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000
CXUS55 KCYS 091829
CLMCHY


Climate Report
NATIONAL WEATHER SERVICE CHEYENNE WY
1125 AM MST TUE JAN 9 2018

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

...The CHEYENNE WY climate summary for the month of December 2017...

Climate normal period 1981 to 2010
Climate record period 1871 to 2018

Weather         Observed          Normal  Depart  Last Year`s
                 Value   Date(s)  Value   From    Value
                                          Normal
.............................................................
Temperature (F)
Record
 High              69   12/05/1939
 Low              -28   12/22/1990
                        12/21/1990
                        12/22/1989
Highest            61   12/12        39      22       55
                        12/03
Lowest             -2   12/26        17     -19      -16
Avg. Maximum     42.3              38.2     4.1     38.3
Avg. Minimum     17.3              17.3     0.0     14.4
Mean             29.8              27.7     2.1     26.3
Days Max >= 90      0               0.0     0.0        0
Days Max <= 32      7               8.7    -1.7        7
Days Min <= 32     30              28.7     1.3       30
Days Min <= 0       1               2.7    -1.7        4

Precipitation (inches)
Record
 Maximum         2.00   1913
 Minimum         0.01   1996
                        1881
Totals           0.57              0.49    0.08     0.43
Days >= .01        12               6.2     5.8        7
Days >= .10         3               1.6     1.4        1
Days >= .50         0               0.1    -0.1        0
Days >= 1.00        0               0.0     0.0        0
Greatest
 24 Hr. Total    0.16   12/23 to 12/23

DEGREE_DAYS
HEATING TOTAL    1086              1155     -69     1190
 SINCE 7/1       2599              2903    -304     2454
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        404               348      56      452

FREEZE DATES
RECORD
 EARLIEST     08/24/1910
 LATEST       06/19/1876
EARLIEST                        09/24
LATEST                          05/20
..............................................................

Wind (mph)
Average Wind Speed              14.1
Highest Wind Speed/Direction    46/280    Date  12/29
Highest Gust Speed/Direction    56/280    Date  12/29

Sky Cover
Possible Sunshine (Percent)   MM
Average Sky Cover           0.30
Number Of Days Fair           19
Number Of Days PC              9
Number of Days Cloudy          3

Average RH (Percent)     58

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                2     Snow                       3
Light Snow               14     Sleet                      0
Fog                      14     Fog w/vis <= 1/4 mile      7
Haze                      4

-  Indicates negative numbers.
R  Indicates record was set or tied.
MM Indicates data is missing.
T  Indicates Trace Amount.
...................................

...The DOUGLAS WY AIRPORT climate summary for the month of December 2017...

Climate normal period 1981 to 2010
Climate record period 1998 to 2018

Weather         Observed          Normal  Depart  Last Year`s
                 Value   Date(s)  Value   From    Value
                                          Normal
.............................................................
Temperature (F)
Record
 High              69   12/12/2014
 Low              -27   12/09/2006
Highest            61   12/03        MM      MM       50
Lowest            -17   12/27        MM      MM      -22
Avg. Maximum     36.4              37.5    -1.1     32.6
Avg. Minimum     10.2              10.7    -0.5      6.3
Mean             23.3              24.1    -0.8     19.5
Days Max >= 90      0               0.0     0.0        0
Days Max <= 32     11               9.2     1.8       12
Days Min <= 32     30              30.3    -0.3       31
Days Min <= 0       9               5.9     3.1        8

Precipitation (inches)
Record
 Maximum         0.74   2014
 Minimum         0.01   2017
Totals           0.01R             0.40   -0.39     0.46
Days >= .01         1                MM      MM        4
Days >= .10         0                MM      MM        2
Days >= .50         0                MM      MM        0
Days >= 1.00        0                MM      MM        0
Greatest
 24 Hr. Total    0.01   12/23 to 12/23

DEGREE_DAYS
HEATING TOTAL    1285              1267      18     1402
 SINCE 7/1       2972              3089    -117     2766
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        502               486      16      209

FREEZE DATES
RECORD
 EARLIEST     MM
 LATEST       MM
EARLIEST                        MM
LATEST                          MM
..............................................................

Wind (mph)
Average Wind Speed              9.8
Highest Wind Speed/Direction    35/340    Date  12/14
Highest Gust Speed/Direction    44/350    Date  12/14

Sky Cover
Possible Sunshine (Percent)   MM
Average Sky Cover           0.40
Number Of Days Fair           16
Number Of Days PC             11
Number of Days Cloudy          4

Average RH (Percent)     68

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                       5
Light Snow               11     Sleet                      0
Fog                      10     Fog w/vis <= 1/4 mile      1
Haze                      6

-  Indicates negative numbers.
R  Indicates record was set or tied.
MM Indicates data is missing.
T  Indicates Trace Amount.
...................................

...The LARAMIE WY AIRPORT climate summary for the month of December 2017...

Climate normal period 1981 to 2010
Climate record period 1948 to 2018

Weather         Observed          Normal  Depart  Last Year`s
                 Value   Date(s)  Value   From    Value
                                          Normal
.............................................................
Temperature (F)
Record
 High              61   12/16/1980
 Low              -34   12/31/2014
                        12/22/1989
                        02/18/2006
Highest            56   12/12        MM      MM       51
                        12/03
Lowest            -16   12/22        MM      MM      -23
Avg. Maximum     38.2              32.2     6.0     33.4
Avg. Minimum     12.7              10.0     2.7     10.6
Mean             25.4              21.1     4.3     22.0
Days Max >= 90      0               0.0     0.0        0
Days Max <= 32     12              14.0    -2.0       14
Days Min <= 32     30              30.5    -0.5       31
Days Min <= 0       5               5.9    -0.9        5

Precipitation (inches)
Record
 Maximum           MM   MM
 Minimum           MM   MM
Totals           0.23              0.32   -0.09     0.21
Days >= .01         6               5.1     0.9        5
Days >= .10         0               1.1    -1.1        1
Days >= .50         0               0.0     0.0        0
Days >= 1.00        0               0.0     0.0        0
Greatest
 24 Hr. Total    0.07   12/13 to 12/13

DEGREE_DAYS
HEATING TOTAL    1220              1361    -141     1325
 SINCE 7/1       3254              3673    -419     3173
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        101                67      34      119

FREEZE DATES
RECORD
 EARLIEST     MM
 LATEST       MM
EARLIEST                        MM
LATEST                          MM
..............................................................

Wind (mph)
Average Wind Speed              15.6
Highest Wind Speed/Direction    53/260    Date  12/29
Highest Gust Speed/Direction    68/280    Date  12/30

Sky Cover
Possible Sunshine (Percent)   MM
Average Sky Cover           0.30
Number Of Days Fair           19
Number Of Days PC              9
Number of Days Cloudy          3

Average RH (Percent)     61

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                2     Snow                       3
Light Snow               12     Sleet                      0
Fog                      13     Fog w/vis <= 1/4 mile      4
Haze                      1

-  Indicates negative numbers.
R  Indicates record was set or tied.
MM Indicates data is missing.
T  Indicates Trace Amount.
...................................

...The RAWLINS WY AIRPORT climate summary for the month of December 2017...

Climate normal period 1981 to 2010
Climate record period 1951 to 2018

Weather         Observed          Normal  Depart  Last Year`s
                 Value   Date(s)  Value   From    Value
                                          Normal
.............................................................
Temperature (F)
Record
 High              57   12/17/1962
 Low              -35   12/21/1990
                        12/20/1990
Highest            51   12/03        MM      MM       49
                        12/02
Lowest             -8   12/24        MM      MM      -18
Avg. Maximum     36.2              30.9     5.3     31.3
Avg. Minimum     15.6              12.1     3.5     11.3
Mean             25.9              21.5     4.4     21.3
Days Max >= 90      0               0.0     0.0        0
Days Max <= 32     12              15.7    -3.7       15
Days Min <= 32     30              30.5    -0.5       30
Days Min <= 0       4               4.6    -0.6        5

Precipitation (inches)
Record
 Maximum         2.10   2010
 Minimum            T   2008
Totals           0.04              0.43   -0.39     0.62
Days >= .01         1               5.9    -4.9       10
Days >= .10         0               1.2    -1.2        1
Days >= .50         0               0.0     0.0        0
Days >= 1.00        0               0.0     0.0        0
Greatest
 24 Hr. Total    0.04   12/23 to 12/23

DEGREE_DAYS
HEATING TOTAL    1205              1348    -143     1345
 SINCE 7/1       3031              3454    -423     3088
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        266               186      80      235

FREEZE DATES
RECORD
 EARLIEST     MM
 LATEST       MM
EARLIEST                        MM
LATEST                          MM
..............................................................

Wind (mph)
Average Wind Speed              15.0
Highest Wind Speed/Direction    45/260    Date  12/25
Highest Gust Speed/Direction    55/200    Date  12/20

Sky Cover
Possible Sunshine (Percent)   MM
Average Sky Cover           0.30
Number Of Days Fair           20
Number Of Days PC              9
Number of Days Cloudy          2

Average RH (Percent)     63

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                       1
Light Snow                6     Sleet                      0
Fog                       8     Fog w/vis <= 1/4 mile      2
Haze                      4

-  Indicates negative numbers.
R  Indicates record was set or tied.
MM Indicates data is missing.
T  Indicates Trace Amount.
...................................

...The TORRINGTON WY AIRPORT climate summary for the month of December 2017...

Climate normal period 1981 to 2010
Climate record period 1998 to 2018

Weather         Observed          Normal  Depart  Last Year`s
                 Value   Date(s)  Value   From    Value
                                          Normal
.............................................................
Temperature (F)
Record
 High              70   12/02/2012
 Low              -27   12/18/2016
                        12/31/2014
                        12/21/1998
Highest            67   12/20        MM      MM       53
Lowest            -16   12/24        MM      MM      -27
Avg. Maximum     40.5              40.0     0.5     36.5
Avg. Minimum     12.3              14.3    -2.0      8.9
Mean             26.4              27.1    -0.7     22.7
Days Max >= 90      0               0.0     0.0        0
Days Max <= 32     10               7.7     2.3        9
Days Min <= 32     30              29.7     0.3       31
Days Min <= 0       7               4.3     2.7        7

Precipitation (inches)
Record
 Maximum         1.10   2014
 Minimum            T   2017
Totals              TR             0.37   -0.37     0.60
Days >= .01         0                MM      MM        7
Days >= .10         0                MM      MM        2
Days >= .50         0                MM      MM        0
Days >= 1.00        0                MM      MM        0
Greatest
 24 Hr. Total       T   12/31 to 12/31

DEGREE_DAYS
HEATING TOTAL    1189              1173      16     1302
 SINCE 7/1       2589              2756    -167     2429
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        777               678      99      821

FREEZE DATES
RECORD
 EARLIEST     MM
 LATEST       MM
EARLIEST                        MM
LATEST                          MM
..............................................................

Wind (mph)
Average Wind Speed              10.4
Highest Wind Speed/Direction    40/320    Date  12/08
Highest Gust Speed/Direction    52/330    Date  12/08

Sky Cover
Possible Sunshine (Percent)   MM
Average Sky Cover           0.30
Number Of Days Fair           18
Number Of Days PC              9
Number of Days Cloudy          4

Average RH (Percent)     62

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                1     Snow                       3
Light Snow                9     Sleet                      0
Fog                      11     Fog w/vis <= 1/4 mile      2
Haze                      4

-  Indicates negative numbers.
R  Indicates record was set or tied.
MM Indicates data is missing.
T  Indicates Trace Amount.

$$


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