STATION:  WENATCHEE-PANGBORN MEMORIAL AIRPORT (KEAT), WA

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        |  35.1  43.3  53.7  62.9  71.8  79.0  89.1  87.3  77.6  61.8  45.2  34.1 |   61.7
Avg Min Temp        |  24.1  27.7  34.1  40.0  48.1  54.6  61.5  60.3  51.7  40.5  31.2  24.1 |   41.5
Avg Temperature     |  29.6  35.5  43.9  51.5  59.9  66.8  75.3  73.8  64.7  51.1  38.2  29.1 |   51.6
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    68    63    73    88    97   102   108   104   100    82    66    58 |    108
                    |                                                                         |
    Date of Ext-Day |    24    22    30    30    18    29    27    17    02    02    04    16 |
               -Year|  2004  2002  2003  1998  2006  2008  1998  2008  1998  2003  2007  1999 |
                    |                                                                         |
    Extreme Min Temp|    -8     8    21    25    33    42    47    45    33    15     9    -7 |     -8
                    |                                                                         |
    Date of Ext-Day |    05    08    07    21    06    07    18    31    23    30    30    20 |
               -Year|  2004  1997  2002  2008  2002  2002  1996  1999  2000  2002  2006  2008 |
                    |                                                                         |
Heating Degree Days |  1097   833   654   407   189    53     5     6    86   430   804  1113 |   5678
Cooling Degree Days |     0     0     0     1    32   105   323   280    76     1     0     0 |    817
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   0.0   0.0   0.0   0.0   1.1   4.1  15.3  12.8   2.1   0.0   0.0   0.0 |   35.4
    Max Temp >= 75  |   0.0   0.0   0.0   2.5  11.1  20.1  29.5  29.3  18.8   1.6   0.0   0.0 |  112.9
    Max Temp <= 32  |   9.7   1.7   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.0   2.4  12.4 |   26.3
                    |                                                                         |
    Min Temp <= 32  |  28.0  22.5  11.1   2.5   0.0   0.0   0.0   0.0   0.0   3.0  17.4  27.8 |  112.2
    Min Temp <= 20  |   8.3   3.1   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.3   2.3   8.2 |   22.1
    Min Temp  <= 0  |   0.2   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.3 |    0.5
                    |                                                                         |
Avg Dew Point Temp  |  24.9  26.1  29.0  31.1  37.4  41.4  45.0  45.5  40.6  35.8  30.8  25.2 |   34.4
Avg Wet Bulb Temp   |  27.6  31.6  37.6  42.1  49.0  53.5  58.6  58.0  52.0  43.9  34.8  27.6 |   43.0
                    |                                                                         |
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                    |                                                                         |
Avg Sea Level Pres  | 30.18 30.15 30.08 29.99 29.97 29.94 29.91 29.91 29.96 30.08 30.19 30.19 |  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   0.0   0.1   0.4   1.5   1.9   1.4   0.9   0.4   0.1   0.0   0.0 |    6.7
    Heavy Fog       |   9.8   4.8   1.8   0.0   0.0   0.0   0.0   0.0   0.0   0.7   3.5   7.6 |   28.3
    Fog             |  14.3   7.6   4.0   1.1   1.3   0.8   0.1   0.2   0.2   1.4   9.0  14.5 |   54.5
    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     |  1.05  0.91  0.49  0.39  0.70  0.38  0.17  0.12  0.10  0.30  1.05  1.51 |   7.17
                    |                                                                         |
Maximum Daily       |  0.76  0.70  0.40  0.49  0.86  0.42  0.46  0.22  0.14  0.36  1.03  0.98 |   1.03
                    |                                                                         |
    Date of Ext-Day |    17    03    25    01    20    27    03    22    15    17    19    14 |
               -Year|  1998  1998  2004  2006  2007  2001  1998  2001  1996  2004  1996  2006 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |  10.2   7.7   5.1   3.6   6.1   3.8   1.9   1.8   1.9   4.6   9.5  11.2 |   67.4
    >= 0.10         |   3.8   3.3   2.0   1.4   2.2   1.4   0.5   0.4   0.2   1.1   3.2   5.1 |   24.5
    >= 0.25         |   1.2   1.1   0.4   0.5   0.8   0.5   0.2   0.0   0.0   0.2   1.5   1.9 |    8.3
    >= 0.50         |   0.1   0.2   0.0   0.0   0.2   0.0   0.0   0.0   0.0   0.0   0.3   0.4 |    1.2
    >= 1.00         |   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.1   0.0 |    0.1
                    |                                                                         |
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                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   3.3   4.4   7.0   8.4   9.4  10.2  10.3   9.1   8.0   5.9   4.0   3.3 |    6.9
Daily Avg Max 2-Min |  12.0  13.9  18.9  19.8  20.9  21.3  21.1  19.6  18.6  16.9  13.2  11.6 |   17.3
Daily Avg Peak Gust |  14.4  16.8  23.1  24.2  25.3  25.9  25.1  23.7  22.5  20.4  16.1  14.0 |   21.0
                    |                                                                         |
Maximum Daily Avg   |  15.2  15.0  17.5  19.1  20.9  21.6  21.7  20.0  18.7  19.5  14.0  14.3 |   21.7
                    |                                                                         |
Maximum 2-Minute Avg|    51    35    41    39    41    37    37    33    36    45    33    36 |     51
                    |                                                                         |
Date of Max 2min-Day|    07    07    05    27    01    07    26    02    04    28    19    14 |
               -Year|  2007  2008  2003  2004  2006  2008  2002  2004  2004  2003  2003  2001 |
                    |                                                                         |
Maximum Peak Gust   |    72    51    51    48    48    48    45    41    58    52    41    48 |     72
                    |                                                                         |
Date of Max Gust-Day|    07    07    05    27    01    11    26    18    18    28    12    15 |
               -Year|  2007  2008  2003  2004  2006  2007  2002  2008  2008  2003  2007  2006 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   2.3   3.3   7.4   6.0   9.4   9.5   7.8   5.6   5.6   4.8   2.7   1.7 |   66.1
   Peak Gust >=40   |   0.8   0.8   2.0   1.0   1.4   1.0   0.4   0.3   0.5   0.7   0.3   0.5 |    9.5
   Peak Gust >=50   |   0.5   0.1   0.1   0.0   0.0   0.0   0.0   0.0   0.1   0.1   0.0   0.0 |    1.0
                    |                                                                         |
   Max 2-Minute >=30|   0.8   1.4   3.5   2.1   2.5   2.8   1.6   1.4   2.1   1.6   0.9   0.0 |   20.7
   Max 2-Minute >=40|   0.5   0.0   0.1   0.0   0.1   0.0   0.0   0.0   0.0   0.1   0.0   0.0 |    0.9
                    |                                                                         |
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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.