STATION:  RAWLINS MUNICIPAL AIRPORT (KRWL), WY

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

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

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TEMPERATURE (F)     |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Avg Max Temp        |  30.5  32.4  43.1  55.1  65.5  77.3  87.6  82.2  70.8  56.8  40.7  30.8 |   56.1
Avg Min Temp        |  12.6  13.1  21.0  27.5  35.3  43.3  52.6  49.9  40.5  30.8  19.7  13.2 |   30.0
Avg Temperature     |  21.6  22.7  32.1  41.3  50.4  60.3  70.1  66.1  55.7  43.8  30.2  22.0 |   43.0
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    52    55    71    77    88    94    97    95    87    77    67    51 |     97
                    |                                                                         |
    Date of Ext-Day |    27    01    22    29    31    30    08    01    03    01    02    02 |
               -Year|  2003  2003  2004  2007  2002  2002  2002  2008  2002  2001  2008  2008 |
                    |                                                                         |
    Extreme Min Temp|   -25   -30   -18     4    11    28    39    31    21    -3   -13   -26 |    -30
                    |                                                                         |
    Date of Ext-Day |    14    09    02    01    09    08    04    31    18    31    27    07 |
               -Year|  2007  2001  2002  2008  2002  2007  2005  2005  2003  2002  2001  2005 |
                    |                                                                         |
Heating Degree Days |  1347  1194  1021   712   454   167     9    48   286   657  1043  1334 |   8272
Cooling Degree Days |     0     0     0     0     2    27   168    81     6     0     0     0 |    284
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   0.0   0.0   0.0   0.0   0.0   2.4  12.2   2.8   0.0   0.0   0.0   0.0 |   17.4
    Max Temp >= 75  |   0.0   0.0   0.0   0.4   7.2  20.4  29.7  27.4  11.8   1.0   0.0   0.0 |   98.0
    Max Temp <= 32  |  16.9  13.0   5.9   0.4   0.0   0.0   0.0   0.0   0.0   0.7   7.6  17.0 |   61.4
                    |                                                                         |
    Min Temp <= 32  |  30.5  27.5  27.9  23.2  10.5   1.1   0.0   0.1   2.9  17.5  26.4  30.2 |  197.9
    Min Temp <= 20  |  21.0  20.7  11.6   4.6   1.1   0.0   0.0   0.0   0.0   3.9  14.4  21.7 |   99.1
    Min Temp  <= 0  |   4.8   4.1   1.6   0.0   0.0   0.0   0.0   0.0   0.0   0.2   1.9   4.2 |   16.8
                    |                                                                         |
Avg Dew Point Temp  |  12.9  13.6  19.1  21.9  28.7  31.8  37.2  37.7  31.6  25.2  18.0  13.5 |   24.3
Avg Wet Bulb Temp   |  19.1  20.1  27.1  33.3  40.5  46.5  52.9  51.2  44.0  35.6  25.8  19.7 |   34.7
                    |                                                                         |
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                    |                                                                         |
Avg Sea Level Pres  | 30.18 30.12 30.06 30.03 29.95 29.94 29.91 29.94 29.99 30.04 30.15 30.14 |  30.04
(Inches of Mercury) |                                                                         |
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                    |                                                                         |
WEATHER             |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
See disclaimer below|                                                                         |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Thunderstorms   |   0.0   0.2   0.6   2.0   4.4   5.8   7.3   7.3   3.8   0.6   0.1   0.0 |   32.1
    Heavy Fog       |   2.6   2.2   3.2   1.4   1.1   0.1   0.0   0.0   0.1   0.8   2.0   2.2 |   15.9
    Fog             |   8.2   9.4   8.6   8.2   5.2   3.8   0.9   1.3   3.5   6.1   9.6   9.9 |   74.6
    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
                    |                                                                         |
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                    |                                                                         |
PRECIPITATION (In)  |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Average Monthly     |  0.12  0.20  0.62  0.78  1.00  0.66  0.72  0.81  1.18  0.68  0.36  0.18 |   7.31
                    |                                                                         |
Maximum Daily       |  0.25  0.25  0.46  0.62  0.69  0.55  1.12  0.57  0.67  0.37  0.39  0.23 |   1.12
                    |                                                                         |
    Date of Ext-Day |    11    28    28    19    10    30    18    23    10    31    02    29 |
               -Year|  2005  2004  2007  2003  2003  2004  2004  2003  2008  2000  2003  2004 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |   3.0   4.9   7.5   9.4  10.3   7.8   4.9   7.7   8.4   8.6   7.4   3.7 |   83.5
    >= 0.10         |   0.4   0.6   1.8   2.5   3.0   2.1   1.8   2.4   3.7   2.4   0.9   0.6 |   22.1
    >= 0.25         |   0.1   0.1   0.6   0.8   1.1   0.8   0.9   1.3   1.6   0.7   0.3   0.0 |    8.3
    >= 0.50         |   0.0   0.0   0.0   0.1   0.3   0.1   0.4   0.1   0.5   0.0   0.0   0.0 |    1.5
    >= 1.00         |   0.0   0.0   0.0   0.0   0.0   0.0   0.3   0.0   0.0   0.0   0.0   0.0 |    0.3
                    |                                                                         |
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                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|  14.3  13.8  13.9  13.1  12.0  11.4   9.2   9.5   9.9  12.2  12.7  14.7 |   12.2
Daily Avg Max 2-Min |  28.9  27.7  28.4  28.1  27.7  28.8  26.0  25.5  25.2  26.5  26.6  29.8 |   27.4
Daily Avg Peak Gust |  34.5  33.0  34.0  34.5  34.3  36.2  32.5  31.8  31.3  32.4  32.3  36.0 |   33.6
                    |                                                                         |
Maximum Daily Avg   |  32.7  33.7  32.7  26.4  29.6  26.4  16.6  20.0  21.5  29.0  29.2  33.7 |   33.7
                    |                                                                         |
Maximum 2-Minute Avg|    60    54    51    47    46    51    44    54    52    52    49    47 |     60
                    |                                                                         |
Date of Max 2min-Day|    08    16    05    23    22    10    06    22    12    23    11    30 |
               -Year|  2007  2003  2004  2002  2002  2003  2003  2007  2005  2001  2003  2003 |
                    |                                                                         |
Maximum Peak Gust   |    70    68    62    58    56    63    54    66    62    67    60    62 |     70
                    |                                                                         |
Date of Max Gust-Day|    08    16    05    23    05    16    06    22    12    18    08    25 |
               -Year|  2007  2003  2004  2002  2002  2007  2003  2007  2005  2004  2002  2008 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |  20.5  17.6  20.4  20.2  21.8  21.8  19.7  18.0  17.6  17.6  16.8  22.9 |  234.9
   Peak Gust >=40   |  11.0   8.6   8.6   8.6   7.9  10.6   6.2   4.7   5.4   6.4   7.6  11.5 |   97.2
   Peak Gust >=50   |   2.1   1.2   2.0   2.2   1.4   2.4   0.5   1.0   0.4   1.2   1.2   2.6 |   18.3
                    |                                                                         |
   Max 2-Minute >=30|  15.2  12.5  13.8  12.2  12.2  14.0   8.9   9.2   8.1   9.6  10.9   0.0 |  126.7
   Max 2-Minute >=40|   4.1   1.8   2.2   2.4   1.5   3.0   0.8   0.9   0.6   1.6   1.6   0.0 |   20.4
                    |                                                                         |
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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.