STATION:  GULKANA AIRPORT (PAGK), 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        |   4.5  17.3  26.7  43.6  56.8  67.7  68.5  64.8  53.3  35.9  14.8   7.4 |   38.4
Avg Min Temp        | -11.9  -3.0   0.8  20.8  32.9  42.6  46.3  41.6  32.4  19.0  -1.0  -9.0 |   17.6
Avg Temperature     |  -3.7   7.2  13.8  32.2  44.9  55.2  57.4  53.2  42.8  27.4   6.9  -0.8 |   28.0
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    41    43    44    70    79    89    83    86    67    69    43    49 |     89
                    |                                                                         |
    Date of Ext-Day |    14    04    25    27    25    26    03    12    04    02    22    21 |
               -Year|  2001  2003  1999  2003  2002  2004  1999  2005  1996  2003  2002  1999 |
                    |                                                                         |
    Extreme Min Temp|   -51   -50   -33   -22    17    26    29    24    11   -17   -38   -46 |    -51
                    |                                                                         |
    Date of Ext-Day |    08    04    16    01    05    02    01    28    16    27    26    18 |
               -Year|  1997  1999  2007  2002  2002  1997  2008  1996  2003  2001  2006  2001 |
                    |                                                                         |
Heating Degree Days |  2130  1632  1587   984   624   298   239   365   665  1164  1743  2040 |  13474
Cooling Degree Days |     0     0     0     0     0     3     2     1     0     0     0     0 |      5
                    |                                                                         |
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   0.5   5.3   6.4   3.8   0.0   0.0   0.0   0.0 |   16.0
    Max Temp <= 32  |  29.2  22.7  19.8   2.5   0.0   0.0   0.0   0.0   0.2  10.4  25.5  29.0 |  139.3
                    |                                                                         |
    Min Temp <= 32  |  31.0  27.9  30.6  27.6  16.7   1.3   0.3   3.7  15.7  27.7  29.6  30.6 |  242.7
    Min Temp <= 20  |  30.0  25.2  27.2  11.5   0.4   0.0   0.0   0.0   2.2  14.4  26.9  29.9 |  167.8
    Min Temp  <= 0  |  23.0  16.9  15.0   2.1   0.0   0.0   0.0   0.0   0.0   2.3  16.5  22.3 |   98.1
                    |                                                                         |
Avg Dew Point Temp  |  -2.3   4.7   3.7  18.1  29.2  39.4  45.1  43.0  34.0  22.0   4.7  -1.7 |   20.0
Avg Wet Bulb Temp   |   1.5   9.1  12.3  27.6  38.9  47.7  51.0  48.3  39.0  25.8   8.2   1.9 |   25.9
                    |                                                                         |
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                    |                                                                         |
Avg Sea Level Pres  | 30.27 30.15 30.19 30.07 30.05 29.95 29.90 29.94 30.05 30.04 30.13 30.20 |  30.08
(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   0.2   2.4   1.8   0.2   0.1   0.0   0.0   0.0 |    4.7
    Heavy Fog       |   0.7   1.2   0.4   0.5   1.0   0.7   0.4   1.0   1.8   1.4   1.8   0.9 |   11.6
    Fog             |  10.2   7.9   4.9   3.5   4.8   3.9   4.8   5.8   6.2   8.7  10.9  10.9 |   82.6
    Hail            |   0.0   0.0   0.1   0.1   0.5   0.2   0.1   0.0   0.0   0.0   0.0   0.0 |    1.0
                    |                                                                         |
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                    |                                                                         |
PRECIPITATION (In)  |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Average Monthly     |  0.48  0.33  0.22  0.26  0.89  1.20  1.78  1.69  1.44  1.05  0.61  0.71 |  10.66
                    |                                                                         |
Maximum Daily       |  0.42  0.40  0.21  0.24  1.38  0.75  1.10  0.69  1.04  0.69  0.96  0.62 |   1.38
                    |                                                                         |
    Date of Ext-Day |    06    11    19    21    25    19    28    21    23    02    27    22 |
               -Year|  2003  2004  2002  2002  1999  2005  2008  2006  2000  2008  2002  1999 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |   6.5   3.9   3.2   4.3   7.4  10.5  12.8  12.9  12.0   9.0   6.6   7.7 |   96.7
    >= 0.10         |   1.6   1.0   1.1   0.9   2.5   4.1   5.3   5.4   3.8   3.7   2.1   2.1 |   33.6
    >= 0.25         |   0.5   0.4   0.0   0.0   1.0   1.7   2.5   2.4   2.1   1.3   0.4   0.8 |   13.2
    >= 0.50         |   0.0   0.0   0.0   0.0   0.3   0.3   0.5   0.6   0.4   0.3   0.2   0.2 |    2.8
    >= 1.00         |   0.0   0.0   0.0   0.0   0.1   0.0   0.1   0.0   0.1   0.0   0.0   0.0 |    0.2
                    |                                                                         |
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                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   3.2   4.0   5.8   6.9   7.3   6.9   7.1   6.0   6.4   4.8   3.2   2.7 |    5.4
Daily Avg Max 2-Min |  10.1  12.0  15.0  17.6  18.0  17.0  16.5  15.4  16.1  13.1  10.1   9.4 |   14.2
Daily Avg Peak Gust |  12.6  14.9  19.1  22.5  23.0  21.9  21.3  20.0  21.0  16.7  12.7  11.8 |   18.1
                    |                                                                         |
Maximum Daily Avg   |  25.1  27.5  27.9  23.8  21.9  18.7  22.2  21.1  23.4  19.7  24.1  23.2 |   27.9
                    |                                                                         |
Maximum 2-Minute Avg|    37    44    46    39    35    38    35    39    36    35    41    49 |     49
                    |                                                                         |
Date of Max 2min-Day|    03    02    12    03    01    07    16    18    21    10    08    21 |
               -Year|  2005  2000  2003  2001  2001  2007  2003  2006  2000  2008  2007  1999 |
                    |                                                                         |
Maximum Peak Gust   |    45    54    67    52    49    52    47    55    47    49    54    64 |     67
                    |                                                                         |
Date of Max Gust-Day|    03    02    09    03    15    07    27    18    09    10    08    22 |
               -Year|  2005  2000  2003  2001  2008  2007  2003  2006  2005  2008  2007  1999 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   3.2   5.1   6.6   6.9   5.2   4.2   3.9   3.9   6.8   3.5   3.0   2.5 |   54.9
   Peak Gust >=40   |   1.0   1.1   2.2   1.6   0.8   0.1   0.2   0.7   1.2   0.7   1.0   1.0 |   11.6
   Peak Gust >=50   |   0.0   0.3   0.3   0.2   0.0   0.1   0.0   0.1   0.0   0.0   0.3   0.5 |    1.9
                    |                                                                         |
   Max 2-Minute >=30|   1.1   1.3   2.8   2.3   1.0   0.2   0.3   0.6   1.4   0.7   1.3   0.0 |   13.0
   Max 2-Minute >=40|   0.0   0.2   0.2   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.1   0.0 |    0.5
                    |                                                                         |
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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.