STATION:  SELDOVIA AIRPORT (PASO), 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        |  30.3  33.7  34.7  42.4  50.6  57.6  61.7  61.1  54.6  45.6  36.0  32.0 |   45.0
Avg Min Temp        |  20.0  23.3  23.3  29.9  36.4  43.5  48.9  47.7  42.3  33.5  26.6  22.1 |   33.1
Avg Temperature     |  25.1  28.5  29.0  36.2  43.5  50.6  55.3  54.4  48.5  39.6  31.3  27.0 |   39.1
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    47    51    47    66    68    74    82    73    64    69    55    52 |     82
                    |                                                                         |
    Date of Ext-Day |    16    01    02    29    21    26    11    01    11    11    03    03 |
               -Year|  2003  2007  2003  2005  2002  1997  2004  1998  2003  2004  2002  2002 |
                    |                                                                         |
    Extreme Min Temp|    -6    -4     1     6    24    34    37    33    28    16     4     1 |     -6
                    |                                                                         |
    Date of Ext-Day |    31    04    10    01    05    04    01    26    19    28    24    19 |
               -Year|  1999  1999  1999  2004  2001  1999  2008  1998  2003  2008  2006  2001 |
                    |                                                                         |
Heating Degree Days |  1236  1032  1115   865   668   433   301   329   496   789  1012  1177 |   9451
Cooling Degree Days |     0     0     0     0     0     0     0     0     0     0     0     0 |      0
                    |                                                                         |
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   0.0   0.0   0.5   0.0   0.0   0.0   0.0   0.0 |    0.5
    Max Temp <= 32  |  16.6   8.0   9.7   1.0   0.1   0.0   0.0   0.0   0.0   1.1   9.1  15.5 |   61.0
                    |                                                                         |
    Min Temp <= 32  |  28.5  25.1  27.5  20.3   6.7   0.0   0.0   0.0   1.4  14.4  22.7  27.3 |  174.0
    Min Temp <= 20  |  15.2   8.8  10.8   1.5   0.0   0.0   0.0   0.0   0.0   1.1   7.5  13.3 |   58.2
    Min Temp  <= 0  |   1.0   0.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0 |    1.5
                    |                                                                         |
Avg Dew Point Temp  |  21.1  24.4  22.3  29.5  35.8  43.5  49.1  49.1  43.4  33.7  27.1  22.9 |   33.5
Avg Wet Bulb Temp   |  24.1  27.5  27.3  33.8  40.2  47.1  51.9  51.5  46.0  36.7  29.8  25.6 |   36.8
                    |                                                                         |
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                    |                                                                         |
Avg Sea Level Pres  | 30.21 30.09 30.21 30.12 30.03 29.99 29.94 30.00 30.03 30.07 30.13 30.38 |  30.10
(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       |   3.3   2.8   2.7   0.5   0.3   0.4   0.7   0.5   0.1   0.7   2.6   3.7 |   18.3
    Fog             |  21.5  17.8  15.0  12.5   9.5   8.8  11.9  14.4  13.6  15.7  18.2  20.2 |  178.9
    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     |  3.72  3.56  2.67  2.38  0.88  1.09  1.62  2.23  3.38  4.18  5.05  5.77 |  36.52
                    |                                                                         |
Maximum Daily       |  1.45  2.10  2.29  1.14  0.56  0.81  1.07  1.77  1.60  2.53  2.72  2.31 |   2.72
                    |                                                                         |
    Date of Ext-Day |    14    04    10    05    13    09    26    31    18    23    05    21 |
               -Year|  2001  2003  2005  2005  2005  2006  2004  1998  1999  2002  2002  1999 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |  16.4  14.1  11.9  12.4   9.7   9.5  12.5  13.7  14.3  15.5  15.2  16.2 |  161.3
    >= 0.10         |   8.3   8.6   6.6   6.5   2.5   3.7   4.8   6.7   7.3   8.5   9.6  10.4 |   83.5
    >= 0.25         |   4.5   4.2   2.9   2.9   1.2   1.1   2.0   2.9   3.9   5.3   5.8   7.0 |   43.7
    >= 0.50         |   2.5   2.2   1.5   1.5   0.1   0.4   0.6   0.9   2.0   2.6   3.1   3.4 |   20.8
    >= 1.00         |   0.8   0.7   0.4   0.3   0.0   0.0   0.1   0.1   0.7   0.8   1.2   1.5 |    6.6
                    |                                                                         |
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                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   3.6   3.6   4.5   3.8   4.2   4.3   4.2   3.6   3.6   3.6   3.4   4.0 |    3.9
Daily Avg Max 2-Min |  13.3  13.4  14.4  13.4  12.9  12.9  12.7  12.2  12.7  13.0  13.2  14.4 |   13.2
Daily Avg Peak Gust |  18.5  18.5  19.8  18.6  17.4  17.0  16.9  16.5  17.6  18.3  18.5  20.3 |   18.2
                    |                                                                         |
Maximum Daily Avg   |  19.3  16.9  21.2  13.8  14.3  12.4  17.0  14.4  16.3  13.0  18.3  17.3 |   21.2
                    |                                                                         |
Maximum 2-Minute Avg|    36    37    37    36    29    25    29    29    35    32    36    38 |     38
                    |                                                                         |
Date of Max 2min-Day|    23    02    13    02    15    18    23    11    21    06    22    20 |
               -Year|  2000  2000  2003  2001  1998  2005  2003  1997  2000  1997  2007  2000 |
                    |                                                                         |
Maximum Peak Gust   |    52    56    53    52    41    38    39    39    48    48    64    51 |     64
                    |                                                                         |
Date of Max Gust-Day|    23    10    13    02    23    18    23    11    17    07    22    20 |
               -Year|  2000  2004  2003  2001  2008  2005  2003  1997  1999  2006  2007  2000 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   3.9   3.8   3.5   2.4   0.9   0.5   0.8   1.3   1.6   2.1   4.1   5.1 |   30.0
   Peak Gust >=40   |   0.5   0.7   0.4   0.5   0.1   0.0   0.0   0.0   0.4   0.3   0.7   1.2 |    4.9
   Peak Gust >=50   |   0.1   0.2   0.1   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.1   0.1 |    0.6
                    |                                                                         |
   Max 2-Minute >=30|   0.3   0.5   0.4   0.3   0.0   0.0   0.0   0.0   0.3   0.3   0.3   0.0 |    2.2
   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
                    |                                                                         |
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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.