STATION:  NENANA MUNICIPAL AIRPORT (PANN), AK

CLIMATOLOGICAL SUMMARY.  Period of Record: Jan 1998 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        |   5.6  14.3  21.7  43.3  59.9  70.8  70.4  64.9  53.8  32.4  13.7   7.3 |   38.2
Avg Min Temp        | -12.8  -8.0  -1.9  20.4  36.2  47.2  50.4  45.1  35.0  18.5  -1.8 -10.6 |   18.1
Avg Temperature     |  -3.6   3.1   9.9  31.8  48.0  59.0  60.4  55.0  44.4  25.4   6.0  -1.7 |   28.1
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    45    51    52    73    84    89    87    84    72    75    42    43 |     89
                    |                                                                         |
    Date of Ext-Day |    19    04    20    30    25    13    13    03    12    02    06    22 |
               -Year|  2001  2003  1998  2005  2002  1999  2004  2002  2007  2003  2002  1999 |
                    |                                                                         |
    Extreme Min Temp|   -53   -60   -42   -22     9    24    36    30    12   -17   -40   -58 |    -60
                    |                                                                         |
    Date of Ext-Day |    12    05    01    02    03    04    31    27    29    27    28    31 |
               -Year|  2000  1999  2007  2004  2001  2006  2005  1999  1999  2008  2005  1999 |
                    |                                                                         |
Heating Degree Days |  2127  1748  1708   995   528   190   155   315   618  1229  1771  2067 |  13450
Cooling Degree Days |     0     0     0     0     1    10    12     3     0     0     0     0 |     26
                    |                                                                         |
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   1.5   8.9  10.1   4.2   0.0   0.1   0.0   0.0 |   24.7
    Max Temp <= 32  |  29.4  25.2  23.8   4.7   0.2   0.0   0.0   0.0   0.1  15.8  26.7  30.0 |  155.8
                    |                                                                         |
    Min Temp <= 32  |  30.9  28.2  30.8  28.0  10.6   0.4   0.0   0.6  11.9  28.4  29.9  31.0 |  230.7
    Min Temp <= 20  |  29.2  27.0  28.6  12.3   0.6   0.0   0.0   0.0   0.7  15.8  27.8  30.5 |  172.6
    Min Temp  <= 0  |  22.5  19.4  16.2   2.1   0.0   0.0   0.0   0.0   0.0   3.0  16.7  22.6 |  102.4
                    |                                                                         |
Avg Dew Point Temp  |  -4.0  -0.4  -0.1  17.5  30.6  44.5  49.8  46.6  35.8  19.8   1.0  -4.0 |   19.8
Avg Wet Bulb Temp   |   1.0   4.8   9.1  27.6  41.3  52.1  54.7  50.5  40.1  23.9   5.6   0.5 |   25.9
                    |                                                                         |
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                    |                                                                         |
Avg Sea Level Pres  | 30.22 30.13 30.20 30.07 30.02 29.93 29.88 29.97 30.04 30.05 30.07 30.17 |  30.06
(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       |   0.8   0.7   0.1   0.5   0.7   1.2   0.5   2.7   1.8   1.2   0.8   0.5 |   11.6
    Fog             |  10.8   7.8   5.4   4.1   6.0   7.8  13.4  15.1  10.1  11.2   9.6   8.5 |  110.0
    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     |  0.50  0.26  0.13  0.50  0.78  1.01  3.15  2.36  1.28  0.62  0.36  0.34 |  11.30
                    |                                                                         |
Maximum Daily       |  0.74  0.23  0.32  0.76  0.63  0.61  2.28  1.05  0.78  0.95  0.30  0.20 |   2.28
                    |                                                                         |
    Date of Ext-Day |    18    26    27    29    06    23    27    08    16    14    24    26 |
               -Year|  2000  2006  2001  2002  2004  2008  2003  1998  2007  2004  2005  2004 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |   9.2   4.6   3.7   4.9   7.2  10.1  15.3  14.4  11.1   9.1   5.7   6.8 |  102.1
    >= 0.10         |   1.4   1.1   0.3   1.4   2.8   2.9   7.1   6.6   4.0   1.9   1.3   1.1 |   31.9
    >= 0.25         |   0.3   0.0   0.1   0.5   0.7   1.1   4.4   3.5   1.5   0.3   0.4   0.0 |   12.7
    >= 0.50         |   0.1   0.0   0.0   0.3   0.3   0.3   1.9   1.3   0.5   0.1   0.0   0.0 |    4.6
    >= 1.00         |   0.0   0.0   0.0   0.0   0.0   0.0   0.5   0.1   0.0   0.0   0.0   0.0 |    0.6
                    |                                                                         |
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                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   5.1   5.0   6.0   5.9   5.9   4.9   4.5   4.1   5.1   5.1   5.1   5.0 |    5.2
Daily Avg Max 2-Min |  13.0  13.3  14.6  14.9  16.0  14.8  13.4  12.1  13.2  12.8  13.1  13.4 |   13.7
Daily Avg Peak Gust |  16.8  17.1  19.0  19.6  21.2  19.7  18.1  16.3  17.4  16.8  16.9  17.5 |   18.0
                    |                                                                         |
Maximum Daily Avg   |  27.0  21.1  20.7  18.7  15.0  15.3  10.3  14.2  15.1  15.4  21.7  20.9 |   27.0
                    |                                                                         |
Maximum 2-Minute Avg|    40    37    32    32    29    31    25    29    26    31    35    31 |     40
                    |                                                                         |
Date of Max 2min-Day|    27    19    21    27    15    10    31    28    29    01    26    13 |
               -Year|  2004  2008  2005  1998  1998  2006  2000  2002  2004  2003  2006  2000 |
                    |                                                                         |
Maximum Peak Gust   |    52    47    43    43    37    41    36    40    36    45    43    46 |     52
                    |                                                                         |
Date of Max Gust-Day|    27    06    21    26    15    22    20    28    24    09    26    03 |
               -Year|  2004  2006  2005  2002  1998  2008  1999  2002  2005  2006  2006  2007 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   3.3   2.7   2.4   1.8   2.3   1.8   1.1   0.6   0.9   1.7   2.2   3.9 |   24.8
   Peak Gust >=40   |   0.3   0.2   0.2   0.3   0.0   0.3   0.0   0.1   0.0   0.1   0.3   0.6 |    2.2
   Peak Gust >=50   |   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0 |    0.1
                    |                                                                         |
   Max 2-Minute >=30|   0.4   0.4   0.2   0.1   0.0   0.3   0.0   0.0   0.0   0.2   0.3   0.0 |    1.8
   Max 2-Minute >=40|   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0 |    0.1
                    |                                                                         |
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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.