STATION:  FRIDAY HARBOR AIRPORT (KFHR), WA

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        |  46.1  48.1  51.1  56.2  61.4  66.7  71.3  71.7  66.8  57.3  50.0  45.6 |   57.7
Avg Min Temp        |  36.0  35.4  37.2  38.6  42.6  46.6  48.7  48.4  45.9  42.4  38.8  35.7 |   41.3
Avg Temperature     |  41.0  41.7  44.2  47.4  52.0  56.7  60.0  60.1  56.3  49.8  44.4  40.6 |   49.5
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    60    57    71    76    83    91    95    88    84    73    61    57 |     95
                    |                                                                         |
    Date of Ext-Day |    17    02    29    30    26    06    23    13    02    01    01    24 |
               -Year|  2005  2005  2004  2004  2005  2003  2004  2002  2006  2003  2008  2005 |
                    |                                                                         |
    Extreme Min Temp|    11    22    24    27    30    36    40    42    36    26    23     8 |      8
                    |                                                                         |
    Date of Ext-Day |    04    07    07    01    07    01    03    12    23    31    06    20 |
               -Year|  2004  2001  2002  2008  2002  1999  2000  2000  2000  2002  2003  2008 |
                    |                                                                         |
Heating Degree Days |   743   657   646   528   403   254   165   157   261   470   618   756 |   5657
Cooling Degree Days |     0     0     0     0     0     4    10     4     1     0     0     0 |     18
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   0.0   0.0   0.0   0.0   0.0   0.1   0.4   0.0   0.0   0.0   0.0   0.0 |    0.5
    Max Temp >= 75  |   0.0   0.0   0.0   0.1   0.8   3.8   7.2   8.9   2.3   0.0   0.0   0.0 |   23.0
    Max Temp <= 32  |   0.7   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.9 |    1.6
                    |                                                                         |
    Min Temp <= 32  |   8.7   8.6   5.9   3.6   0.6   0.0   0.0   0.0   0.0   0.7   5.8   8.5 |   42.4
    Min Temp <= 20  |   0.7   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.7 |    1.5
    Min Temp  <= 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 |    0.0
                    |                                                                         |
Avg Dew Point Temp  |  36.8  36.0  37.8  39.9  44.8  48.6  51.5  51.8  49.3  45.0  40.5  36.6 |   43.2
Avg Wet Bulb Temp   |  39.5  39.6  41.5  43.9  48.4  52.1  55.0  55.0  52.3  47.6  43.0  39.4 |   46.5
                    |                                                                         |
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                    |                                                                         |
Avg Sea Level Pres  | 30.12 30.14 30.09 30.05 30.06 30.04 30.05 30.03 30.04 30.11 30.12 30.13 |  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   |   0.1   0.0   0.0   0.0   0.1   0.4   0.1   0.1   0.2   0.0   0.1   0.1 |    1.1
    Heavy Fog       |   1.8   1.3   0.7   1.0   0.7   1.3   2.4   6.5   5.4   5.5   1.9   1.5 |   29.9
    Fog             |  17.2  10.7  12.9   9.3  11.6   9.8  10.5  16.5  16.5  18.5  16.3  15.6 |  165.4
    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     |  3.25  1.37  1.66  0.94  1.11  0.90  0.40  0.99  0.85  2.56  3.40  2.76 |  20.20
                    |                                                                         |
Maximum Daily       |  1.23  1.20  0.75  0.69  0.67  0.77  0.72  1.37  0.53  2.44  1.75  1.11 |   2.44
                    |                                                                         |
    Date of Ext-Day |    17    21    11    13    27    24    03    24    29    16    18    15 |
               -Year|  2005  2002  2002  2000  1998  1999  1998  2004  2005  2003  2003  1999 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |  20.4  14.6  17.1  11.7  12.4   9.8   6.3  11.4  15.4  18.2  19.3  19.0 |  175.5
    >= 0.10         |   9.5   4.3   5.7   3.5   3.1   3.1   1.5   2.5   3.1   6.1   8.4   8.8 |   59.7
    >= 0.25         |   4.1   1.3   1.5   0.4   1.6   0.9   0.3   0.9   1.0   3.1   4.5   3.5 |   23.0
    >= 0.50         |   1.5   0.4   0.1   0.2   0.3   0.2   0.1   0.5   0.1   1.1   1.9   0.9 |    7.2
    >= 1.00         |   0.4   0.1   0.0   0.0   0.0   0.0   0.0   0.1   0.0   0.2   0.3   0.2 |    1.2
                    |                                                                         |
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                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   7.1   6.6   6.8   5.6   5.0   5.1   4.6   4.0   3.8   4.8   6.3   7.6 |    5.6
Daily Avg Max 2-Min |  18.0  17.1  17.1  14.5  13.2  13.3  12.8  12.4  11.9  13.5  16.5  19.4 |   15.0
Daily Avg Peak Gust |  23.6  22.5  22.8  19.4  17.5  17.7  16.8  16.3  15.6  18.2  22.0  25.6 |   19.8
                    |                                                                         |
Maximum Daily Avg   |  22.3  25.1  21.1  21.7  12.2  13.4  10.5  12.0  15.1  19.3  22.3  25.5 |   25.5
                    |                                                                         |
Maximum 2-Minute Avg|    43    44    41    33    30    30    28    24    32    35    44    59 |     59
                    |                                                                         |
Date of Max 2min-Day|    31    20    03    29    21    28    25    19    25    27    12    20 |
               -Year|  2006  1998  1999  2001  2005  2008  2007  2008  1999  1999  2007  2000 |
                    |                                                                         |
Maximum Peak Gust   |    54    55    54    45    41    44    36    33    48    49    63    60 |     63
                    |                                                                         |
Date of Max Gust-Day|    31    05    03    27    21    28    25    15    25    27    12    15 |
               -Year|  2006  1999  1999  2004  2005  2008  2007  2003  1999  1999  2007  2006 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   8.7   7.6   8.1   3.3   1.2   0.5   0.4   0.3   0.7   4.1   7.0  11.0 |   52.9
   Peak Gust >=40   |   3.3   2.4   2.1   0.6   0.1   0.1   0.0   0.0   0.3   1.1   2.6   4.8 |   17.3
   Peak Gust >=50   |   0.5   0.3   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.7   0.9 |    2.5
                    |                                                                         |
   Max 2-Minute >=30|   3.9   2.7   2.4   0.4   0.1   0.1   0.0   0.0   0.3   1.5   2.8   0.0 |   14.2
   Max 2-Minute >=40|   0.1   0.3   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.3   0.0 |    0.7
                    |                                                                         |
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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.