STATION:  MOFFETT FEDERAL AIRFLD APT (KNUQ), CA

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        |  57.9  60.8  64.8  66.8  71.9  76.0  77.0  77.2  77.2  72.9  64.6  58.6 |   68.8
Avg Min Temp        |  41.7  44.0  46.0  47.9  52.4  55.8  58.8  58.6  57.0  52.4  46.8  42.2 |   50.3
Avg Temperature     |  49.8  52.4  55.4  57.3  62.1  65.9  67.9  67.9  67.1  62.6  55.7  50.4 |   59.5
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    70    74    84    92    99   106   101    98    98    91    81    78 |    106
                    |                                                                         |
    Date of Ext-Day |    08    27    16    26    30    14    22    28    13    26    15    05 |
               -Year|  2004  2002  2004  2004  2001  2000  2006  2008  2003  2003  2008  2003 |
                    |                                                                         |
    Extreme Min Temp|    27    32    36    38    43    46    52    51    48    41    32    26 |     26
                    |                                                                         |
    Date of Ext-Day |    15    02    13    02    15    08    04    20    20    31    23    24 |
               -Year|  2007  2002  2006  1999  1999  1999  1999  2000  2004  2002  2003  1998 |
                    |                                                                         |
Heating Degree Days |   472   357   300   239   118    37    11     9    24    99   280   453 |   2398
Cooling Degree Days |     0     0     3     8    30    64   101    99    86    25     0     0 |    416
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   0.0   0.0   0.0   0.2   1.0   1.7   1.4   1.8   3.0   0.6   0.0   0.0 |    9.6
    Max Temp >= 75  |   0.0   0.0   3.0   4.1   8.7  15.6  20.2  20.3  15.7  11.3   1.3   0.1 |  100.3
    Max Temp <= 32  |   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
                    |                                                                         |
    Min Temp <= 32  |   1.5   0.3   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.1   1.0 |    2.9
    Min Temp <= 20  |   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
    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  |  41.5  42.7  43.9  43.9  48.4  51.9  56.1  56.0  53.4  48.4  45.2  41.4 |   47.7
Avg Wet Bulb Temp   |  45.9  47.6  49.4  50.3  54.3  57.6  60.4  60.4  58.6  54.5  49.8  46.2 |   52.9
                    |                                                                         |
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                    |                                                                         |
Avg Sea Level Pres  | 30.17 30.11 30.10 30.06 30.01 29.96 29.96 29.96 29.93 30.02 30.11 30.16 |  30.05
(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   0.1   0.1   0.0   0.0   0.0   0.0   0.1   0.0   0.1   0.0 |    0.4
    Heavy Fog       |   2.3   0.7   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.6   1.0   1.2 |    5.9
    Fog             |  16.7  12.7   8.6   6.0   2.8   1.7   2.2   2.6   5.2   7.0  11.7  15.4 |   92.6
    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     |  2.39  2.73  1.56  1.10  0.26  0.09  0.01  0.00  0.06  0.65  1.54  2.55 |  12.93
                    |                                                                         |
Maximum Daily       |  2.09  1.73  0.90  0.57  0.56  0.24  0.06  0.01  0.29  1.26  1.25  1.34 |   2.09
                    |                                                                         |
    Date of Ext-Day |    04    25    20    12    04    03    18    15    22    26    26    18 |
               -Year|  2008  2004  2006  2003  2005  1999  2007  2000  2007  2000  1997  2005 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |  13.2  12.6   9.4   6.8   2.3   0.9   0.1   0.2   1.2   4.1  11.3  12.3 |   74.3
    >= 0.10         |   5.3   7.1   5.1   4.2   0.7   0.5   0.0   0.0   0.1   1.3   3.8   6.0 |   34.2
    >= 0.25         |   2.7   3.7   2.3   1.7   0.4   0.0   0.0   0.0   0.1   0.8   1.6   3.7 |   17.1
    >= 0.50         |   1.3   1.4   0.6   0.3   0.1   0.0   0.0   0.0   0.0   0.5   0.9   1.5 |    6.5
    >= 1.00         |   0.5   0.3   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.1   0.3   0.4 |    1.6
                    |                                                                         |
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                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   4.1   5.2   5.8   6.4   7.3   7.5   7.4   6.8   5.5   4.6   4.0   4.4 |    5.8
Daily Avg Max 2-Min |  13.3  15.1  17.0  18.2  19.5  20.1  18.6  18.0  16.6  15.0  13.2  13.9 |   16.5
Daily Avg Peak Gust |  16.5  18.6  20.4  21.9  22.9  23.3  21.4  20.8  19.3  17.7  16.1  17.3 |   19.7
                    |                                                                         |
Maximum Daily Avg   |  14.9  15.1  14.1  12.7  12.9  11.1  10.2   9.6   9.3  13.2  13.7  14.3 |   15.1
                    |                                                                         |
Maximum 2-Minute Avg|    37    35    30    30    28    26    26    24    26    31    31    35 |     37
                    |                                                                         |
Date of Max 2min-Day|    01    13    04    03    02    24    04    19    19    21    24    14 |
               -Year|  2006  2008  2001  1999  2001  1999  2000  2000  2007  2000  2001  2002 |
                    |                                                                         |
Maximum Peak Gust   |    46    41    39    38    32    44    31    29    36    38    45    52 |     52
                    |                                                                         |
Date of Max Gust-Day|    01    03    04    03    02    29    03    07    19    22    24    14 |
               -Year|  2006  2000  2001  1999  2001  1997  2008  2007  2007  2000  2001  2002 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   1.3   2.0   1.1   1.0   0.7   0.6   0.3   0.0   0.2   0.4   1.2   2.1 |   10.8
   Peak Gust >=40   |   0.2   0.4   0.0   0.0   0.0   0.1   0.0   0.0   0.0   0.0   0.1   0.4 |    1.1
   Peak Gust >=50   |   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.1 |    0.1
                    |                                                                         |
   Max 2-Minute >=30|   0.2   0.4   0.1   0.1   0.0   0.0   0.0   0.0   0.0   0.2   0.1   0.0 |    1.1
   Max 2-Minute >=40|   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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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.