STATION:  EUGENE MAHLON SWEET FIELD AIRPORT (KEUG), OR

CLIMATOLOGICAL SUMMARY.  Period of Record: Jul 1996 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        |  47.4  50.8  55.6  60.2  66.6  73.0  83.5  83.2  77.1  63.6  52.4  46.4 |   63.3
Avg Min Temp        |  35.1  34.8  37.3  39.1  43.7  46.8  51.3  50.8  46.4  41.1  38.1  34.9 |   41.6
Avg Temperature     |  41.2  42.8  46.5  49.6  55.2  59.9  67.4  67.0  61.8  52.4  45.2  40.6 |   52.5
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    67    68    78    84    95    97   105   104    97    87    71    63 |    105
                    |                                                                         |
    Date of Ext-Day |    18    21    30    12    17    26    27    13    01    01    13    12 |
               -Year|  2005  2002  2003  2008  2008  2006  1998  2002  1998  2001  1999  1998 |
                    |                                                                         |
    Extreme Min Temp|    17    18    26    26    31    33    41    38    31    17    16    10 |     10
                    |                                                                         |
    Date of Ext-Day |    13    19    06    24    02    13    06    31    28    31    01    23 |
               -Year|  2007  2006  1998  2002  2001  2001  2001  2008  1999  2002  2002  1998 |
                    |                                                                         |
Heating Degree Days |   737   626   574   461   310   169    27    32   121   393   594   755 |   4799
Cooling Degree Days |     0     0     0     0     5    16   102    94    24     1     0     0 |    242
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   0.0   0.0   0.0   0.0   0.2   1.2   6.5   6.9   1.8   0.0   0.0   0.0 |   16.7
    Max Temp >= 75  |   0.0   0.0   0.2   1.4   5.6  11.4  27.1  27.1  17.9   3.1   0.0   0.0 |   93.8
    Max Temp <= 32  |   0.6   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.8 |    1.4
                    |                                                                         |
    Min Temp <= 32  |  10.9   9.6   6.1   2.3   0.8   0.0   0.0   0.0   0.3   3.2   6.8  11.4 |   51.4
    Min Temp <= 20  |   0.8   0.3   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.2   0.5   0.6 |    2.2
    Min Temp  <= 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 |    0.0
                    |                                                                         |
Avg Dew Point Temp  |  37.5  37.7  40.2  42.1  46.9  49.5  52.0  51.7  48.4  45.1  41.4  37.6 |   44.2
Avg Wet Bulb Temp   |  39.4  40.2  43.3  45.8  50.7  54.2  58.2  58.0  54.0  48.5  43.3  39.2 |   47.9
                    |                                                                         |
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                    |                                                                         |
Avg Sea Level Pres  | 30.13 30.13 30.11 30.07 30.07 30.05 30.03 30.02 30.01 30.10 30.12 30.20 |  30.09
(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   |   0.2   0.2   0.3   0.7   0.7   0.1   0.5   0.5   0.5   0.0   0.2   0.3 |    4.2
    Heavy Fog       |   9.2   6.1   3.3   3.4   2.5   2.2   0.8   2.0   3.2   8.8   9.9   8.3 |   59.8
    Fog             |  25.2  19.9  19.5  15.8  15.8  11.1   6.1   7.7  11.6  21.5  23.8  23.1 |  200.9
    Hail            |   0.1   0.0   0.2   0.2   0.1   0.0   0.0   0.0   0.0   0.1   0.1   0.0 |    0.7
                    |                                                                         |
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                    |                                                                         |
PRECIPITATION (In)  |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Average Monthly     |  6.84  3.86  4.04  2.45  2.37  0.91  0.21  0.47  1.20  2.69  6.53  7.48 |  39.06
                    |                                                                         |
Maximum Daily       |  2.37  1.40  1.36  1.08  1.20  0.76  0.49  0.67  1.27  1.52  4.03  2.68 |   4.03
                    |                                                                         |
    Date of Ext-Day |    17    21    01    23    31    30    17    20    14    18    18    13 |
               -Year|  2006  1998  1997  2003  1997  1997  1996  1997  1996  2007  1996  2003 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |  19.8  16.3  18.7  15.4  13.7   8.4   3.2   3.6   6.7  13.2  19.0  20.3 |  158.2
    >= 0.10         |  14.0   9.5  11.4   7.2   7.4   3.2   0.6   1.3   2.9   6.8  11.8  13.6 |   89.9
    >= 0.25         |   9.1   5.8   6.1   3.2   3.2   1.0   0.3   0.8   1.5   3.7   8.3   9.2 |   52.3
    >= 0.50         |   4.9   2.0   2.0   1.0   1.0   0.2   0.0   0.2   0.7   1.5   4.1   5.3 |   23.0
    >= 1.00         |   1.4   0.5   0.3   0.2   0.2   0.0   0.0   0.0   0.2   0.2   1.7   2.1 |    6.7
                    |                                                                         |
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                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   6.9   6.9   7.2   6.7   6.2   6.6   7.1   6.8   6.5   6.2   6.3   7.2 |    6.7
Daily Avg Max 2-Min |  15.8  16.2  17.0  16.9  15.4  15.8  16.7  16.6  16.3  15.5  14.9  16.6 |   16.1
Daily Avg Peak Gust |  18.6  19.3  20.4  20.4  18.8  19.6  20.8  20.5  19.8  18.4  17.7  19.9 |   19.5
                    |                                                                         |
Maximum Daily Avg   |  17.5  18.8  15.8  16.7  14.9  13.3  14.1  12.6  15.3  18.4  18.7  19.3 |   19.3
                    |                                                                         |
Maximum 2-Minute Avg|    35    60    37    36    36    30    28    26    32    39    41    44 |     60
                    |                                                                         |
Date of Max 2min-Day|    01    07    02    11    09    29    08    06    02    24    23    14 |
               -Year|  2006  2002  1999  2007  2000  2008  2008  2004  2004  1996  1998  2006 |
                    |                                                                         |
Maximum Peak Gust   |    48    70    52    46    46    40    36    35    38    52    48    54 |     70
                    |                                                                         |
Date of Max Gust-Day|    04    07    02    20    09    29    08    31    02    24    23    14 |
               -Year|  2008  2002  1999  1997  2000  2008  2008  2008  2004  1996  1998  2006 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   3.6   3.6   3.5   2.2   1.3   1.1   0.6   0.4   1.2   1.7   2.7   5.2 |   27.1
   Peak Gust >=40   |   0.2   0.7   0.5   0.3   0.2   0.1   0.0   0.0   0.0   0.4   0.2   0.8 |    3.3
   Peak Gust >=50   |   0.0   0.1   0.2   0.0   0.0   0.0   0.0   0.0   0.0   0.1   0.0   0.2 |    0.5
                    |                                                                         |
   Max 2-Minute >=30|   0.9   0.9   1.3   0.5   0.3   0.1   0.0   0.0   0.1   0.7   0.6   0.0 |    5.4
   Max 2-Minute >=40|   0.0   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.1   0.0 |    0.2
                    |                                                                         |
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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.