STATION:  AURORA STATE AIRPORT (KUAO), OR

CLIMATOLOGICAL SUMMARY.  Period of Record: Jun 1997 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        |  47.4  51.8  55.6  60.8  67.0  73.0  82.0  81.9  76.5  63.2  52.9  46.9 |   63.2
Avg Min Temp        |  36.0  36.6  38.9  41.5  47.2  51.5  55.8  55.5  51.0  44.8  39.5  35.5 |   44.5
Avg Temperature     |  41.7  44.2  47.2  51.1  57.1  62.2  68.9  68.7  63.8  54.0  46.2  41.2 |   53.9
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    65    69    77    89    99   102   105   104    98    84    70    67 |    105
                    |                                                                         |
    Date of Ext-Day |    18    06    29    30    15    28    21    13    27    04    13    28 |
               -Year|  2005  1998  2004  1998  2006  2008  2006  2002  2003  2001  1999  1998 |
                    |                                                                         |
    Extreme Min Temp|    20    21    27    30    34    41    47    46    36    31    23    14 |     14
                    |                                                                         |
    Date of Ext-Day |    05    20    01    04    18    03    14    27    27    25    02    21 |
               -Year|  2004  2006  2002  2001  2003  1999  1999  2000  1999  1997  2002  1998 |
                    |                                                                         |
Heating Degree Days |   722   588   551   417   261   123    16    17    88   343   565   738 |   4429
Cooling Degree Days |     0     0     0     1    16    39   134   133    51     2     0     0 |    377
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   0.0   0.0   0.0   0.0   0.7   1.7   6.0   5.5   2.0   0.0   0.0   0.0 |   16.0
    Max Temp >= 75  |   0.0   0.0   0.3   2.4   6.0  11.0  24.8  25.0  17.1   2.9   0.0   0.0 |   89.4
    Max Temp <= 32  |   0.4   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.8 |    1.2
                    |                                                                         |
    Min Temp <= 32  |   9.5   6.9   3.3   0.8   0.0   0.0   0.0   0.0   0.0   0.6   5.8  10.7 |   37.6
    Min Temp <= 20  |   0.3   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.8 |    1.0
    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  |  37.4  37.5  40.3  42.0  46.4  50.5  53.8  54.1  50.0  46.1  41.6  37.1 |   44.7
Avg Wet Bulb Temp   |  39.6  41.1  43.9  46.5  51.3  55.5  59.9  59.9  55.6  49.8  43.9  39.2 |   48.8
                    |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
Avg Sea Level Pres  | 30.13 30.12 30.11 30.07 30.07 30.05 30.04 30.02 30.02 30.11 30.12 30.19 |  30.09
(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   |   0.3   0.1   0.5   0.7   1.1   0.6   0.3   0.6   1.0   0.4   0.0   0.1 |    5.6
    Heavy Fog       |   7.7   4.1   2.3   1.7   0.5   0.7   0.0   0.2   1.2   6.6   5.1   7.5 |   37.5
    Fog             |  23.9  18.4  18.1  13.5  12.3   8.1   4.1   4.5   8.4  20.4  21.1  22.2 |  175.2
    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     |  5.97  3.94  4.09  2.64  2.40  1.39  0.32  0.73  1.41  2.84  5.95  6.41 |  38.10
                    |                                                                         |
Maximum Daily       |  1.68  1.25  1.51  1.04  0.74  1.03  0.47  1.05  2.00  1.11  2.17  2.22 |   2.22
                    |                                                                         |
    Date of Ext-Day |    31    27    11    13    14    28    08    25    30    09    25    27 |
               -Year|  2003  1999  2002  2000  2001  2002  1997  2004  2005  2000  1998  1998 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |  23.5  18.6  20.3  17.0  14.3   9.3   3.4   4.4   7.6  17.0  22.1  22.3 |  179.9
    >= 0.10         |  14.0  10.6  11.9   8.9   8.1   4.3   0.9   2.4   3.7   7.2  12.5  14.4 |   98.9
    >= 0.25         |   9.0   5.6   5.9   3.3   3.5   1.9   0.4   0.7   1.9   4.0   8.6   9.1 |   53.9
    >= 0.50         |   4.1   2.5   2.2   0.7   0.9   0.4   0.0   0.2   0.7   1.5   3.9   3.8 |   20.9
    >= 1.00         |   0.7   0.2   0.4   0.1   0.0   0.1   0.0   0.1   0.1   0.3   0.9   1.2 |    4.1
                    |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   5.4   5.4   5.2   4.9   4.6   4.8   4.5   4.2   4.0   4.2   4.8   5.4 |    4.8
Daily Avg Max 2-Min |  14.6  14.9  14.5  14.0  13.1  12.9  12.5  12.3  12.2  12.6  13.6  14.5 |   13.5
Daily Avg Peak Gust |  19.8  19.9  19.6  18.9  17.6  17.3  16.9  16.7  16.4  16.7  18.4  19.7 |   18.1
                    |                                                                         |
Maximum Daily Avg   |  18.4  16.1  15.1  15.4  13.0  11.8  10.7  11.4  13.5  15.8  17.5  17.8 |   18.4
                    |                                                                         |
Maximum 2-Minute Avg|    37    33    31    33    24    23    23    25    25    29    33    35 |     37
                    |                                                                         |
Date of Max 2min-Day|    16    07    20    23    14    09    06    26    14    09    12    16 |
               -Year|  2000  1999  2005  2008  1998  2008  2008  1997  1997  1997  2006  2001 |
                    |                                                                         |
Maximum Peak Gust   |    51    46    48    51    33    35    37    38    34    40    55    48 |     55
                    |                                                                         |
Date of Max Gust-Day|    29    06    25    23    24    09    06    24    14    09    12    01 |
               -Year|  2006  1999  2004  2008  2008  2008  2008  2007  1997  1997  2006  1998 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   5.6   4.2   3.8   1.4   0.8   0.3   0.2   0.3   0.6   1.8   4.5   6.0 |   29.6
   Peak Gust >=40   |   0.7   0.6   0.7   0.1   0.0   0.0   0.0   0.0   0.0   0.1   0.5   1.3 |    4.1
   Peak Gust >=50   |   0.1   0.0   0.0   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.1   0.0 |    0.3
                    |                                                                         |
   Max 2-Minute >=30|   0.4   0.5   0.3   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.5   0.0 |    1.7
   Max 2-Minute >=40|   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
                    |                                                                         |
------------------------------------------------------------------------------------------------------

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.