STATION:  SEWARD AIRPORT (PAWD), AK

CLIMATOLOGICAL SUMMARY.  Period of Record: Jun 1997 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        |  30.4  33.4  36.0  44.4  53.2  58.9  61.6  62.4  55.6  45.0  35.5  32.0 |   45.7
Avg Min Temp        |  20.4  23.0  24.3  31.1  38.2  44.9  49.6  49.0  43.1  33.8  26.3  22.3 |   33.8
Avg Temperature     |  25.4  28.2  30.2  37.8  45.7  51.9  55.6  55.7  49.4  39.4  30.9  27.2 |   39.8
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    50    50    50    74    78    84    87    82    70    60    52    49 |     87
                    |                                                                         |
    Date of Ext-Day |    06    01    21    28    27    26    04    08    11    04    09    31 |
               -Year|  2005  2007  1998  2005  2006  1997  1999  2003  2003  2001  1997  2001 |
                    |                                                                         |
    Extreme Min Temp|    -7   -14    -1     8    28    35    40    36    30    15     4    -2 |    -14
                    |                                                                         |
    Date of Ext-Day |    31    04    10    01    08    13    05    29    16    25    29    17 |
               -Year|  1999  1999  1999  2004  1999  2007  2002  1998  2003  2008  2003  1999 |
                    |                                                                         |
Heating Degree Days |  1227  1039  1080   817   598   395   295   289   469   794  1023  1173 |   9201
Cooling Degree Days |     0     0     0     0     0     1     3     1     0     0     0     0 |      6
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   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
    Max Temp >= 75  |   0.0   0.0   0.0   0.0   0.4   0.8   1.3   1.5   0.0   0.0   0.0   0.0 |    4.0
    Max Temp <= 32  |  15.1   7.9   7.3   0.3   0.0   0.0   0.0   0.0   0.0   1.4   9.4  13.7 |   55.1
                    |                                                                         |
    Min Temp <= 32  |  28.1  24.7  27.4  17.2   3.3   0.0   0.0   0.0   0.5  13.3  23.5  26.6 |  164.5
    Min Temp <= 20  |  15.1   9.0   8.7   0.8   0.0   0.0   0.0   0.0   0.0   0.8   7.6  12.8 |   54.8
    Min Temp  <= 0  |   1.2   0.8   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.2 |    2.3
                    |                                                                         |
Avg Dew Point Temp  |  18.8  21.8  20.5  28.6  36.7  45.2  50.4  49.5  42.2  31.9  24.6  21.2 |   32.6
Avg Wet Bulb Temp   |  23.7  26.5  27.3  34.4  41.9  48.5  52.8  52.3  45.8  36.4  28.8  25.5 |   37.0
                    |                                                                         |
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                    |                                                                         |
Avg Sea Level Pres  | 30.28 30.20 30.22 30.12 30.04 29.98 29.95 30.00 30.09 30.12 30.11 30.38 |  30.12
(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   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0 |    0.0
    Heavy Fog       |   2.1   2.3   1.7   0.8   0.3   0.8   1.6   1.2   0.3   0.8   1.0   2.5 |   15.4
    Fog             |  16.0  16.5  12.8  11.0   7.1   8.6  13.5  13.5  12.2  12.9  13.8  17.2 |  155.0
    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     |  4.61  5.39  3.02  4.32  2.40  2.01  2.60  4.56  8.18  7.87  7.92  6.92 |  59.79
                    |                                                                         |
Maximum Daily       |  2.54  4.25  1.39  2.11  2.26  2.42  1.80  2.34  3.21  5.32  3.11  2.95 |   5.32
                    |                                                                         |
    Date of Ext-Day |    14    04    19    14    09    16    26    09    30    09    10    26 |
               -Year|  2001  2003  2003  1998  1998  2004  2004  1997  2003  2006  2004  2001 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |  14.0  14.5  12.3  14.5  14.5  12.8  16.2  16.1  18.8  17.9  16.8  16.8 |  185.1
    >= 0.10         |   9.5   9.5   6.8   8.1   5.5   4.8   7.2   9.4  12.4  11.9  11.0  11.4 |  107.6
    >= 0.25         |   5.5   6.3   4.2   5.4   2.7   2.1   3.3   6.5   8.9   8.9   7.6   7.3 |   68.7
    >= 0.50         |   3.3   3.7   1.9   2.7   1.1   0.7   1.1   3.0   5.9   5.7   5.2   4.8 |   39.1
    >= 1.00         |   0.9   1.5   0.3   1.1   0.4   0.3   0.2   0.7   3.0   2.3   2.6   2.0 |   15.1
                    |                                                                         |
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                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|  11.8   9.9  10.3   8.4   7.3   6.3   5.5   6.2   7.0   9.1  10.2  11.6 |    8.6
Daily Avg Max 2-Min |  23.8  21.6  21.9  19.4  17.2  15.6  14.6  15.7  17.4  20.8  22.2  24.4 |   19.5
Daily Avg Peak Gust |  31.0  27.6  28.1  24.7  21.7  19.8  18.6  20.1  22.8  27.2  29.1  31.6 |   25.2
                    |                                                                         |
Maximum Daily Avg   |  33.1  34.3  34.9  23.3  18.3  15.8  15.6  16.7  21.6  22.5  31.6  29.0 |   34.9
                    |                                                                         |
Maximum 2-Minute Avg|    47    48    46    37    30    30    30    31    36    37    44    44 |     48
                    |                                                                         |
Date of Max 2min-Day|    31    19    06    07    03    05    27    28    17    31    16    20 |
               -Year|  1999  2008  2007  1999  1999  1999  1999  1998  1999  1999  2006  2000 |
                    |                                                                         |
Maximum Peak Gust   |    64    67    69    56    40    40    41    43    45    52    72    56 |     72
                    |                                                                         |
Date of Max Gust-Day|    31    02    06    12    22    05    27    15    17    12    26    24 |
               -Year|  1999  2000  2007  2008  2007  1999  1999  2000  1999  2001  2008  2004 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |  17.2  12.9  13.8   8.4   4.5   2.0   1.7   2.7   6.3  13.3  14.5  18.8 |  116.0
   Peak Gust >=40   |   7.1   4.8   4.6   1.5   0.1   0.1   0.1   0.3   0.6   2.5   5.6   8.4 |   35.8
   Peak Gust >=50   |   1.2   1.0   0.5   0.3   0.0   0.0   0.0   0.0   0.0   0.1   1.3   1.1 |    5.4
                    |                                                                         |
   Max 2-Minute >=30|   8.6   6.0   5.8   1.6   0.2   0.1   0.1   0.2   0.7   2.9   6.2   0.0 |   32.4
   Max 2-Minute >=40|   0.5   0.8   0.2   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.3   0.0 |    1.8
                    |                                                                         |
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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.