STATION:  BETHEL AIRPORT (PABE), AK

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        |  11.5  20.9  20.5  35.2  50.6  62.3  63.7  60.8  52.4  36.0  24.5  14.6 |   37.8
Avg Min Temp        |  -0.3   7.5   5.4  20.1  33.3  44.3  48.8  47.1  39.0  24.0  12.9   1.6 |   23.6
Avg Temperature     |   5.6  14.2  13.0  27.7  41.9  53.3  56.2  53.9  45.7  30.0  18.7   8.1 |   30.7
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    47    46    42    63    75    84    85    87    69    58    51    49 |     87
                    |                                                                         |
    Date of Ext-Day |    30    01    15    30    25    17    05    09    04    04    06    01 |
               -Year|  2007  2007  2002  2004  1997  2002  2008  2003  1996  2001  2002  2007 |
                    |                                                                         |
    Extreme Min Temp|   -37   -39   -31   -13     5    31    35    32    22    -6   -26   -37 |    -39
                    |                                                                         |
    Date of Ext-Day |    07    01    18    04    02    04    28    27    23    30    23    13 |
               -Year|  2003  1999  2001  2005  2001  1999  2000  1996  1996  2001  2008  1998 |
                    |                                                                         |
Heating Degree Days |  1842  1435  1613  1120   715   352   273   346   580  1086  1389  1763 |  12514
Cooling Degree Days |     0     0     0     0     0     2     2     2     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   0.1   2.2   2.0   1.4   0.0   0.0   0.0   0.0 |    5.7
    Max Temp <= 32  |  26.2  19.6  24.3  10.9   1.3   0.0   0.0   0.0   0.1  10.7  19.7  26.0 |  138.7
                    |                                                                         |
    Min Temp <= 32  |  30.6  27.7  30.6  26.5  14.4   0.2   0.0   0.2   5.5  24.9  28.1  30.5 |  219.2
    Min Temp <= 20  |  26.6  21.3  25.6  13.3   1.5   0.0   0.0   0.0   0.0  10.1  19.8  27.0 |  145.1
    Min Temp  <= 0  |  15.7   8.9  13.5   2.5   0.0   0.0   0.0   0.0   0.0   0.7   5.8  14.6 |   61.7
                    |                                                                         |
Avg Dew Point Temp  |   3.0  11.5   8.3  21.8  33.1  43.8  48.7  47.7  40.2  26.9  14.5   5.8 |   25.4
Avg Wet Bulb Temp   |   6.0  14.2  12.5  25.5  38.0  48.6  51.9  50.4  42.8  29.2  17.0   8.6 |   28.7
                    |                                                                         |
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                    |                                                                         |
Avg Sea Level Pres  | 30.30 30.16 30.21 30.14 30.01 29.99 29.94 30.01 30.04 30.04 30.12 30.25 |  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   0.1   0.7   0.5   0.4   0.1   0.1   0.0   0.0 |    1.8
    Heavy Fog       |   3.2   4.2   3.1   3.7   3.1   3.2   2.7   4.6   4.2   3.9   4.3   2.9 |   43.2
    Fog             |  14.9  14.4  14.5  14.3  12.7  13.7  14.2  16.0  15.0  13.7  14.8  15.2 |  173.2
    Hail            |   0.0   0.0   0.0   0.0   0.2   0.1   0.0   0.0   0.0   0.0   0.0   0.0 |    0.2
                    |                                                                         |
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                    |                                                                         |
PRECIPITATION (In)  |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Average Monthly     |  0.72  0.62  0.58  0.96  1.55  1.95  2.70  3.12  3.22  1.67  1.56  0.92 |  19.57
                    |                                                                         |
Maximum Daily       |  0.84  0.46  0.59  0.80  1.35  0.74  1.00  1.72  1.28  0.82  1.09  0.59 |   1.72
                    |                                                                         |
    Date of Ext-Day |    27    13    29    07    02    26    04    29    29    03    08    31 |
               -Year|  2008  2005  2008  2006  2002  2002  2007  2001  2004  2001  2000  1997 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |   9.1   8.5   6.7  11.3  12.6  13.3  16.0  17.2  18.2  12.9  12.9  10.4 |  149.2
    >= 0.10         |   2.2   1.8   2.2   3.6   5.0   6.0   7.4   8.8   9.0   5.0   4.8   2.6 |   58.6
    >= 0.25         |   0.8   0.3   0.6   0.8   2.1   3.2   4.3   4.2   4.1   1.9   1.8   0.9 |   25.0
    >= 0.50         |   0.2   0.0   0.1   0.2   0.3   0.9   1.3   1.5   1.3   0.6   0.5   0.3 |    7.3
    >= 1.00         |   0.0   0.0   0.0   0.0   0.1   0.0   0.1   0.2   0.3   0.0   0.1   0.0 |    0.8
                    |                                                                         |
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                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|  13.2  12.3  12.4  11.7  10.0   9.2   9.6   9.3   9.6  10.2  11.1  11.7 |   10.9
Daily Avg Max 2-Min |  21.3  20.8  20.6  20.4  18.3  17.2  16.8  17.6  17.8  17.9  19.4  19.6 |   19.0
Daily Avg Peak Gust |  25.6  25.0  24.5  24.6  22.5  21.4  21.0  22.1  21.9  22.0  23.5  23.6 |   23.1
                    |                                                                         |
Maximum Daily Avg   |  33.3  29.2  29.9  31.2  21.5  21.1  25.3  26.0  24.7  34.3  28.1  29.2 |   34.3
                    |                                                                         |
Maximum 2-Minute Avg|    56    52    46    53    38    32    40    41    40    41    49    45 |     56
                    |                                                                         |
Date of Max 2min-Day|    22    09    13    22    23    30    19    03    22    19    02    22 |
               -Year|  2000  2004  2003  2005  2008  2003  1999  2000  2005  2002  2004  2004 |
                    |                                                                         |
Maximum Peak Gust   |    67    62    53    62    47    38    52    52    48    52    61    52 |     67
                    |                                                                         |
Date of Max Gust-Day|    22    09    02    22    16    28    19    03    22    29    02    22 |
               -Year|  2000  2004  2003  2005  2004  2003  1999  2000  2005  2006  2004  2004 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |  10.2   7.9   8.1   7.6   4.0   2.2   3.3   5.0   4.9   6.0   7.5   8.4 |   75.1
   Peak Gust >=40   |   2.7   2.1   1.6   1.6   0.4   0.0   0.7   0.9   1.1   1.7   1.9   1.8 |   16.5
   Peak Gust >=50   |   0.8   0.6   0.2   0.2   0.0   0.0   0.1   0.1   0.0   0.2   0.2   0.2 |    2.6
                    |                                                                         |
   Max 2-Minute >=30|   4.6   3.7   3.8   2.8   0.6   0.3   1.0   1.1   1.8   2.3   3.2   0.0 |   25.3
   Max 2-Minute >=40|   1.1   0.9   0.3   0.3   0.0   0.0   0.1   0.1   0.1   0.5   0.4   0.0 |    3.7
                    |                                                                         |
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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.