STATION:  WORLAND MUNICIPAL AIRPORT (KWRL), WY

CLIMATOLOGICAL SUMMARY.  Period of Record: Dec 2000 to Dec 2008

Summaries based on unedited daily ASOS data.  Errors may be present.

-----------------------------------------------------------------------------------------------

TEMPERATURE (F)     |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Avg Max Temp        |  32.3  36.3  50.4  61.2  70.4  81.1  91.9  87.7  75.0  60.2  47.3  32.4 |   60.5
Avg Min Temp        |   5.1   9.5  22.7  32.4  41.2  49.6  56.8  52.5  43.1  31.5  19.3   7.1 |   30.9
Avg Temperature     |  18.7  22.9  36.6  46.8  55.8  65.4  74.4  70.1  59.1  45.9  33.3  19.7 |   45.7
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    59    66    79    87    94   101   106   102    96    86    73    61 |    106
                    |                                                                         |
    Date of Ext-Day |    24    27    31    29    29    29    13    12    03    01    05    15 |
               -Year|  2005  2006  2004  2007  2003  2007  2005  2003  2001  2001  2001  2006 |
                    |                                                                         |
    Extreme Min Temp|   -32   -30   -15     9    20    35    40    37    29     2   -17   -21 |    -32
                    |                                                                         |
    Date of Ext-Day |    06    24    09    01    09    11    12    31    18    31    23    15 |
               -Year|  2004  2003  2002  2008  2002  2008  2008  2005  2003  2006  2003  2008 |
                    |                                                                         |
Heating Degree Days |  1435  1189   881   546   301    86     3    18   205   592   951  1404 |   7611
Cooling Degree Days |     0     0     0     0    15    97   294   177    27     0     0     0 |    611
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   0.0   0.0   0.0   0.0   0.6   6.4  22.2  13.9   3.2   0.0   0.0   0.0 |   46.3
    Max Temp >= 75  |   0.0   0.0   0.6   3.9  12.6  21.8  30.2  29.5  16.1   3.7   0.0   0.0 |  118.5
    Max Temp <= 32  |  14.7  10.0   2.2   0.1   0.0   0.0   0.0   0.0   0.0   1.0   4.3  14.7 |   47.0
                    |                                                                         |
    Min Temp <= 32  |  31.0  28.1  28.0  15.6   3.3   0.0   0.0   0.0   0.5  16.3  27.9  31.0 |  181.6
    Min Temp <= 20  |  28.0  23.0   9.8   1.9   0.1   0.0   0.0   0.0   0.0   2.1  15.7  28.5 |  109.1
    Min Temp  <= 0  |   9.7   5.9   0.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0   1.1   7.8 |   25.1
                    |                                                                         |
Avg Dew Point Temp  |  11.2  13.4  21.3  26.7  35.3  41.8  47.4  43.5  38.2  30.1  20.5  11.9 |   28.4
Avg Wet Bulb Temp   |  15.9  19.5  30.3  38.0  45.8  52.8  58.6  55.1  48.1  38.1  27.4  16.8 |   37.2
                    |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
Avg Sea Level Pres  | 30.19 30.14 30.05 30.06 29.97 29.92 29.89 29.91 30.00 30.09 30.15 30.20 |  30.05
(Inches of Mercury) |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
WEATHER             |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
See disclaimer below|                                                                         |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Thunderstorms   |   0.0   0.0   0.0   0.6   2.0   4.1   5.9   4.0   2.4   0.1   0.1   0.0 |   19.3
    Heavy Fog       |   2.0   1.8   1.4   0.3   0.0   0.0   0.0   0.0   0.1   0.3   0.6   1.6 |    7.9
    Fog             |   6.8   7.6   6.2   4.4   3.1   2.4   1.5   1.4   3.4   3.9   3.8   6.9 |   51.3
    Hail            |   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0 |    0.0
                    |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
PRECIPITATION (In)  |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Average Monthly     |  0.13  0.21  0.36  1.08  1.17  0.52  0.59  0.28  0.78  0.72  0.24  0.12 |   6.21
                    |                                                                         |
Maximum Daily       |  0.14  0.37  0.52  1.31  0.98  0.89  1.09  0.39  0.73  0.83  0.42  0.28 |   1.31
                    |                                                                         |
    Date of Ext-Day |    28    28    27    30    22    24    19    30    01    04    10    26 |
               -Year|  2002  2004  2003  2003  2008  2003  2002  2003  2008  2005  2008  2003 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |   2.8   2.5   3.8   5.8   7.2   4.9   4.8   4.3   6.1   6.1   2.9   2.8 |   53.8
    >= 0.10         |   0.2   0.5   1.5   2.9   3.1   1.8   1.4   1.0   2.2   2.4   0.5   0.2 |   17.8
    >= 0.25         |   0.0   0.4   0.4   1.8   1.4   0.4   0.6   0.1   0.9   0.9   0.5   0.1 |    7.4
    >= 0.50         |   0.0   0.0   0.1   0.5   0.9   0.1   0.4   0.0   0.2   0.1   0.0   0.0 |    2.4
    >= 1.00         |   0.0   0.0   0.0   0.1   0.0   0.0   0.1   0.0   0.0   0.0   0.0   0.0 |    0.3
                    |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   3.9   4.7   6.5   7.4   7.0   6.0   5.4   5.3   5.2   4.8   4.6   4.2 |    5.4
Daily Avg Max 2-Min |  13.1  14.4  17.7  20.5  20.4  19.9  18.8  18.1  16.2  15.3  14.3  13.6 |   16.9
Daily Avg Peak Gust |  15.1  17.0  21.5  25.4  25.7  25.3  24.3  24.3  20.4  18.8  17.0  15.8 |   20.9
                    |                                                                         |
Maximum Daily Avg   |  16.6  16.0  23.1  20.4  23.6  12.7  11.5  11.3  18.4  14.5  15.0  16.6 |   23.6
                    |                                                                         |
Maximum 2-Minute Avg|    38    37    39    44    39    40    37    38    37    44    40    33 |     44
                    |                                                                         |
Date of Max 2min-Day|    04    05    29    08    05    26    28    10    20    11    08    17 |
               -Year|  2008  2006  2007  2005  2007  2001  2001  2005  2008  2001  2005  2000 |
                    |                                                                         |
Maximum Peak Gust   |    48    46    48    55    51    53    52    47    48    52    60    46 |     60
                    |                                                                         |
Date of Max Gust-Day|    15    05    29    26    14    28    15    05    20    11    14    21 |
               -Year|  2008  2006  2007  2005  2002  2002  2008  2007  2008  2001  2008  2007 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   1.4   2.6   6.1  10.4  10.5   9.7   7.6  10.2   5.0   3.9   3.1   3.1 |   73.6
   Peak Gust >=40   |   0.5   0.9   1.8   2.9   2.6   1.5   2.3   1.6   0.5   0.9   1.1   0.4 |   17.0
   Peak Gust >=50   |   0.0   0.0   0.0   0.4   0.1   0.3   0.4   0.0   0.0   0.1   0.3   0.0 |    1.5
                    |                                                                         |
   Max 2-Minute >=30|   0.5   1.2   3.2   3.9   3.4   2.4   2.5   2.1   1.1   1.1   1.6   0.0 |   23.2
   Max 2-Minute >=40|   0.0   0.0   0.0   0.3   0.0   0.2   0.0   0.0   0.0   0.1   0.1   0.0 |    0.8
                    |                                                                         |
------------------------------------------------------------------------------------------------------

Observations of WEATHER may me innacurate due to early ASOS inconsistancies.  Average days
with Thunderstorms may be low due to early mis-detection.

Heavy Fog = Visibility less than or equal to 1/4 mile.
Fog = Visibility greater than 1/4 mile or less than 7 miles.
Peak Gust = Maximum 5-second average.
Snowfall data not observed at ASOS stations.

Copyright ©2009 Western Regional Climate Center - Desert Research Institute - Reno, Nevada.