STATION:  YAKUTAT AIRPORT (PAYA), 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        |  33.7  36.9  38.3  44.8  52.0  57.6  60.0  61.1  54.8  47.3  38.9  35.3 |   46.7
Avg Min Temp        |  22.6  24.7  23.9  29.8  36.7  44.6  48.7  47.0  41.2  34.4  26.9  24.9 |   33.8
Avg Temperature     |  28.1  30.8  31.1  37.3  44.4  51.1  54.4  54.0  48.0  40.9  32.9  30.1 |   40.3
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    51    50    59    69    76    82    75    88    72    60    53    50 |     88
                    |                                                                         |
    Date of Ext-Day |    18    21    22    26    20    19    16    15    03    01    07    16 |
               -Year|  2001  1998  1998  2003  2002  2004  1996  2004  2002  2003  2002  2005 |
                    |                                                                         |
    Extreme Min Temp|    -7    -6    -3     7    23    32    38    33    21     7    -4    -2 |     -7
                    |                                                                         |
    Date of Ext-Day |    10    08    04    01    05    01    13    22    30    20    25    31 |
               -Year|  2007  2008  2007  2002  2002  1999  2002  2003  1996  1996  2006  2008 |
                    |                                                                         |
Heating Degree Days |  1143   966  1051   831   640   417   329   341   510   749   962  1081 |   9021
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   0.1   0.6   0.3   0.6   0.0   0.0   0.0   0.0 |    1.6
    Max Temp <= 32  |  12.2   5.5   3.9   0.0   0.0   0.0   0.0   0.0   0.0   0.0   4.3  10.1 |   36.0
                    |                                                                         |
    Min Temp <= 32  |  25.3  22.3  25.5  17.5   8.9   0.2   0.0   0.0   4.1  12.6  21.5  24.8 |  162.8
    Min Temp <= 20  |  11.7   7.9   9.6   2.7   0.0   0.0   0.0   0.0   0.0   0.9   6.5   8.9 |   48.1
    Min Temp  <= 0  |   1.3   0.6   0.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.4   0.1 |    2.8
                    |                                                                         |
Avg Dew Point Temp  |  24.6  26.5  24.4  31.7  38.8  46.2  50.5  50.0  44.8  37.5  29.1  27.4 |   36.0
Avg Wet Bulb Temp   |  27.3  29.2  29.3  35.3  42.1  48.8  52.3  51.9  46.7  39.5  31.7  29.8 |   38.7
                    |                                                                         |
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                    |                                                                         |
Avg Sea Level Pres  | 30.21 30.18 30.19 30.08 30.03 30.03 30.00 29.99 30.06 30.12 30.13 30.30 |  30.11
(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   |   0.1   0.2   0.1   0.2   0.1   0.1   0.0   0.5   0.9   0.8   0.2   0.5 |    3.8
    Heavy Fog       |   3.2   3.3   3.1   2.7   3.3   2.8   2.7   5.0   3.4   0.8   2.1   2.9 |   35.4
    Fog             |  19.1  18.6  16.7  19.6  19.9  19.1  18.6  19.5  20.4  17.7  18.0  20.3 |  227.5
    Hail            |   0.4   0.4   0.3   0.2   0.2   0.0   0.0   0.0   0.0   0.1   0.2   0.9 |    2.7
                    |                                                                         |
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                    |                                                                         |
PRECIPITATION (In)  |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Average Monthly     | 11.63 10.98  8.74  8.81  7.55  3.77  8.01 13.77 18.85 19.82 12.95 14.41 | 139.29
                    |                                                                         |
Maximum Daily       |  5.09  7.00  3.13  3.66  2.86  1.89  3.44  6.85  4.76  7.43  5.83  6.70 |   7.43
                    |                                                                         |
    Date of Ext-Day |    11    22    26    15    30    21    24    24    25    18    26    23 |
               -Year|  1997  1997  2000  1998  2007  1998  2008  2005  1996  1999  2002  1999 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |  21.3  19.5  18.5  19.2  17.4  16.7  19.6  19.2  23.4  24.3  21.6  23.0 |  243.5
    >= 0.10         |  16.5  15.1  15.1  14.5  11.9   9.2  12.6  13.8  19.7  20.2  17.3  18.5 |  184.5
    >= 0.25         |  12.0  11.2  11.1  10.6   8.4   4.9   8.3  11.3  17.2  16.9  14.0  14.5 |  140.7
    >= 0.50         |   8.5   7.2   6.4   6.2   4.4   2.3   4.8   8.2  12.8  13.0   9.9   9.3 |   92.9
    >= 1.00         |   3.7   3.2   2.0   2.5   2.3   0.4   2.7   5.0   7.0   7.5   3.9   5.1 |   45.4
                    |                                                                         |
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                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   4.8   4.6   5.3   4.8   4.9   4.1   4.0   3.9   4.7   5.2   4.8   5.4 |    4.7
Daily Avg Max 2-Min |  13.5  13.0  14.3  13.6  13.2  11.6  11.0  11.4  13.1  14.1  13.4  14.9 |   13.1
Daily Avg Peak Gust |  18.7  17.9  19.7  18.5  18.1  15.6  14.8  15.7  18.2  20.0  18.9  20.7 |   18.1
                    |                                                                         |
Maximum Daily Avg   |  18.9  21.8  20.2  16.2  16.0  10.2  12.2  16.1  16.2  20.5  19.2  23.0 |   23.0
                    |                                                                         |
Maximum 2-Minute Avg|    40    44    41    37    31    21    30    39    38    41    46    41 |     46
                    |                                                                         |
Date of Max 2min-Day|    03    26    28    20    02    25    31    28    22    25    03    03 |
               -Year|  2001  2001  2004  2000  2001  2002  2000  1998  1999  1999  2001  1997 |
                    |                                                                         |
Maximum Peak Gust   |    58    64    59    53    45    33    44    54    55    60    83    66 |     83
                    |                                                                         |
Date of Max Gust-Day|    03    06    15    06    02    10    31    28    20    25    03    29 |
               -Year|  2001  2006  2003  2007  2001  2007  2000  1998  1999  1999  2001  2006 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   5.6   4.3   5.1   2.7   1.4   0.1   0.2   1.2   3.0   5.3   4.8   6.5 |   40.4
   Peak Gust >=40   |   1.9   1.8   1.0   0.8   0.3   0.0   0.1   0.2   0.8   2.0   1.8   2.8 |   13.7
   Peak Gust >=50   |   0.4   0.5   0.3   0.1   0.0   0.0   0.0   0.1   0.2   0.9   0.2   0.5 |    3.2
                    |                                                                         |
   Max 2-Minute >=30|   1.5   1.2   0.8   0.8   0.1   0.0   0.1   0.2   0.5   1.5   1.2   0.0 |    7.7
   Max 2-Minute >=40|   0.1   0.3   0.2   0.0   0.0   0.0   0.0   0.0   0.0   0.2   0.1   0.0 |    0.8
                    |                                                                         |
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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.