STATION:  MADERA MUNICIPAL AIRPORT (KMAE), CA

CLIMATOLOGICAL SUMMARY.  Period of Record: Sep 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        |  54.2  60.8  67.5  72.9  84.4  92.2  97.1  95.6  90.4  78.7  65.1  55.3 |   76.2
Avg Min Temp        |  37.3  39.5  42.0  44.9  51.5  56.8  61.8  59.6  55.9  48.4  41.5  36.9 |   48.0
Avg Temperature     |  45.8  50.1  54.8  58.9  68.0  74.5  79.4  77.6  73.2  63.6  53.3  46.1 |   62.1
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    69    76    88    98   105   107   112   107   109    99    86    76 |    112
                    |                                                                         |
    Date of Ext-Day |    19    22    16    27    31    15    23    31    03    03    14    08 |
               -Year|  2000  2002  2007  2004  2001  2000  2006  2007  1998  2001  2003  2006 |
                    |                                                                         |
    Extreme Min Temp|    20    26    31    31    39    44    51    49    44    33    24    19 |     19
                    |                                                                         |
    Date of Ext-Day |    12    08    08    04    03    07    04    31    20    12    25    21 |
               -Year|  2007  2001  2002  1999  2001  1999  2000  1999  2004  2008  2003  1998 |
                    |                                                                         |
Heating Degree Days |   596   421   320   204    41     4     0     0     6    93   351   586 |   2621
Cooling Degree Days |     0     0     2    20   133   290   447   390   250    48     0     0 |   1579
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   0.0   0.0   0.0   1.4   9.2  20.0  28.0  26.9  17.5   2.4   0.0   0.0 |  105.5
    Max Temp >= 75  |   0.0   0.1   6.3  12.2  26.4  29.6  31.0  31.0  29.2  22.2   2.9   0.1 |  191.0
    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   0.1 |    0.1
                    |                                                                         |
    Min Temp <= 32  |   8.2   3.6   0.6   0.4   0.0   0.0   0.0   0.0   0.0   0.0   2.8  10.2 |   25.8
    Min Temp <= 20  |   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.3 |    0.4
    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  |  40.3  42.7  44.8  43.8  46.7  50.1  55.0  54.2  50.6  46.2  44.0  39.9 |   46.5
Avg Wet Bulb Temp   |  43.0  46.2  49.5  51.0  56.4  60.4  64.5  63.3  59.9  53.6  48.2  42.7 |   53.2
                    |                                                                         |
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                    |                                                                         |
Avg Sea Level Pres  | 30.17 30.09 30.05 30.00 29.92 29.87 29.86 29.86 29.87 29.97 30.10 30.16 |  29.99
(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   |   0.2   0.2   0.4   1.0   0.3   0.1   0.4   0.2   0.3   0.3   0.1   0.2 |    3.6
    Heavy Fog       |  12.6   7.7   3.7   0.5   0.0   0.0   0.0   0.0   0.2   0.6   7.7   8.6 |   41.7
    Fog             |  26.6  22.9  21.3  13.2   5.5   1.9   1.8   5.3   6.7  14.5  20.9  22.9 |  163.5
    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     |  2.01  1.94  1.28  0.90  0.53  0.07  0.01  0.00  0.03  0.37  0.71  1.75 |   9.61
                    |                                                                         |
Maximum Daily       |  1.51  1.22  0.86  1.29  1.42  0.44  0.07  0.01  0.12  0.87  1.04  1.02 |   1.51
                    |                                                                         |
    Date of Ext-Day |    02    27    05    13    05    08    06    30    22    26    12    31 |
               -Year|  2006  2000  2000  2003  2005  2000  2001  2007  2007  2004  2001  2004 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |  13.5  13.8   9.4   5.9   2.4   0.3   0.1   0.1   0.6   2.7   9.9  12.5 |   71.3
    >= 0.10         |   4.5   5.5   3.5   2.6   1.0   0.2   0.0   0.0   0.1   1.1   1.9   4.7 |   25.2
    >= 0.25         |   2.8   2.3   2.1   1.3   0.4   0.2   0.0   0.0   0.0   0.5   0.7   2.9 |   13.2
    >= 0.50         |   1.4   0.9   0.6   0.3   0.3   0.0   0.0   0.0   0.0   0.2   0.4   0.7 |    4.8
    >= 1.00         |   0.2   0.2   0.0   0.1   0.2   0.0   0.0   0.0   0.0   0.0   0.1   0.1 |    0.9
                    |                                                                         |
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                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   4.9   5.5   6.0   6.9   7.7   8.2   7.2   6.9   5.9   5.0   4.3   4.8 |    6.1
Daily Avg Max 2-Min |  13.1  14.4  15.3  17.8  18.5  16.6  14.9  14.3  13.8  12.8  12.1  13.0 |   14.7
Daily Avg Peak Gust |  15.7  17.3  19.3  22.3  23.1  21.0  18.5  18.1  17.4  15.9  14.8  16.3 |   18.3
                    |                                                                         |
Maximum Daily Avg   |  16.7  17.3  16.5  15.8  16.0  14.7  12.8  13.0  13.5  16.3  17.4  21.3 |   21.3
                    |                                                                         |
Maximum 2-Minute Avg|    38    35    52    79    79    47    41    36    43    48    35    35 |     79
                    |                                                                         |
Date of Max 2min-Day|    07    27    21    01    06    27    07    05    01    08    24    28 |
               -Year|  2005  2006  2008  2008  2008  2008  2008  2007  2007  2008  2001  2005 |
                    |                                                                         |
Maximum Peak Gust   |    71    43    79    81    82    84    64    66    76    67    40    40 |     84
                    |                                                                         |
Date of Max Gust-Day|    22    27    17    01    06    26    06    05    18    08    24    06 |
               -Year|  2008  2006  2008  2008  2008  2008  2008  2007  2008  2008  2001  2007 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   1.6   2.6   3.2   4.7   4.5   2.6   1.4   1.4   1.3   1.4   1.2   2.7 |   28.8
   Peak Gust >=40   |   0.5   0.3   0.9   1.1   1.6   0.9   0.5   0.6   0.6   0.6   0.1   0.1 |    7.8
   Peak Gust >=50   |   0.1   0.0   0.4   0.3   0.7   0.2   0.2   0.5   0.1   0.4   0.0   0.0 |    3.0
                    |                                                                         |
   Max 2-Minute >=30|   0.9   0.6   0.8   1.3   2.2   0.6   0.5   0.4   0.6   0.6   0.5   0.0 |    9.1
   Max 2-Minute >=40|   0.0   0.0   0.3   0.2   0.6   0.1   0.1   0.0   0.2   0.2   0.0   0.0 |    1.8
                    |                                                                         |
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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.