STATION:  EL CENTRO NAF (KNJK), CA

CLIMATOLOGICAL SUMMARY.  Period of Record: Dec 2006 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        |  67.0  75.1  83.6  88.3  94.3 105.9 107.4 107.2 101.9  91.9  82.3  67.8 |   89.4
Avg Min Temp        |  38.1  44.5  50.7  55.7  61.6  69.3  78.2  79.1  72.0  59.5  51.4  39.8 |   58.3
Avg Temperature     |  52.6  59.8  67.1  72.0  78.0  87.6  92.8  93.1  86.9  75.7  66.8  53.8 |   73.9
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    79    87   101   104   113   118   116   115   115   105    96    83 |    118
                    |                                                                         |
    Date of Ext-Day |    09    13    17    28    19    20    04    29    01    01    01    01 |
               -Year|  2007  2008  2007  2007  2008  2008  2007  2007  2007  2008  2008  2008 |
                    |                                                                         |
    Extreme Min Temp|    21    32    35    46    52    57    70    69    58    47    40    30 |     21
                    |                                                                         |
    Date of Ext-Day |    14    06    04    17    02    07    01    08    23    12    25    20 |
               -Year|  2007  2008  2007  2007  2008  2007  2007  2007  2007  2008  2007  2006 |
                    |                                                                         |
Heating Degree Days |   386   155    56     4     0     0     0     0     0     3    42   348 |    993
Cooling Degree Days |     0     8   122   214   402   676   861   872   658   334    97     0 |   4245
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   0.0   0.0   8.4  13.0  23.5  30.0  31.0  31.0  26.5  22.6   4.5   0.0 |  190.5
    Max Temp >= 75  |   3.2  14.6  25.2  29.0  31.0  30.0  31.0  31.0  29.5  30.5  24.0   4.3 |  283.3
    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  |   4.7   0.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   3.0 |    8.3
    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  |  26.0  31.5  27.8  33.0  37.4  40.9  59.3  57.7  50.0  34.6  35.1  29.3 |   38.5
Avg Wet Bulb Temp   |  41.8  46.9  48.8  53.4  57.6  62.8  71.7  69.0  65.4  54.5  51.2  43.1 |   55.5
                    |                                                                         |
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                    |                                                                         |
Avg Sea Level Pres  | 30.14 30.07 30.02 29.91 29.82 29.78 29.78 29.76 29.81 29.95 30.02 30.15 |  29.93
(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   0.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0 |    0.5
    Heavy Fog       |   0.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0 |    0.5
    Fog             |   1.0   0.0   0.0   0.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0 |    1.5
    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     |  0.24  0.00  0.13  0.00  0.06  0.00  0.00  0.12  0.32  0.00  0.59  0.24 |   1.70
                    |                                                                         |
Maximum Daily       |  0.34  0.00  0.14  0.00  0.11  0.00  0.00  0.17  0.64  0.00  0.94  0.67 |   0.94
                    |                                                                         |
    Date of Ext-Day |    27          21          16                01    21          30    17 |
               -Year|  2008        2008        2008              2007  2007        2007  2008 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |   1.5   0.0   1.0   0.0   0.5   0.0   0.0   2.0   0.5   0.0   2.0   1.0 |    8.5
    >= 0.10         |   1.0   0.0   1.0   0.0   0.5   0.0   0.0   0.5   0.5   0.0   1.0   0.3 |    4.8
    >= 0.25         |   0.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.5   0.0   0.5   0.3 |    1.8
    >= 0.50         |   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.5   0.0   0.5   0.3 |    1.3
    >= 1.00         |   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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                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   6.8   8.0   7.8  10.0   9.3   7.9   6.8   6.6   6.9   7.4   5.5   6.4 |    7.5
Daily Avg Max 2-Min |  17.0  19.2  19.3  24.0  21.9  18.4  17.3  17.5  19.3  18.0  13.5  16.0 |   18.5
Daily Avg Peak Gust |  20.3  23.1  23.7  29.7  27.0  23.2  21.4  22.1  24.2  22.3  17.3  19.2 |   22.8
                    |                                                                         |
Maximum Daily Avg   |  24.1  24.2  25.5  25.4  25.0  20.7  11.5  11.0  17.7  22.5  22.6  19.4 |   25.5
                    |                                                                         |
Maximum 2-Minute Avg|    40    45    43    45    41    39    29    37    44    45    48    39 |     48
                    |                                                                         |
Date of Max 2min-Day|    28    27    27    12    04    05    11    29    04    05    24    27 |
               -Year|  2008  2007  2007  2007  2007  2007  2007  2008  2007  2007  2007  2006 |
                    |                                                                         |
Maximum Peak Gust   |    48    52    53    53    51    46    36    49    53    55    77    48 |     77
                    |                                                                         |
Date of Max Gust-Day|    28    27    27    12    04    04    11    29    04    05    24    25 |
               -Year|  2008  2007  2007  2007  2007  2008  2007  2008  2007  2007  2007  2008 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   5.8  10.3   8.9  14.5  12.0   7.4   2.5   5.0   8.8   7.9   2.5   6.8 |   92.4
   Peak Gust >=40   |   2.1   2.6   3.7   5.5   3.0   2.1   0.0   0.5   2.1   2.6   1.0   2.7 |   27.9
   Peak Gust >=50   |   0.0   1.5   1.1   1.0   0.5   0.0   0.0   0.0   0.5   1.1   1.0   0.0 |    6.7
                    |                                                                         |
   Max 2-Minute >=30|   3.7   6.2   4.8   9.5   6.0   3.1   0.0   1.0   5.7   5.8   2.0   0.0 |   47.7
   Max 2-Minute >=40|   0.5   1.5   1.1   1.0   0.5   0.0   0.0   0.0   0.5   1.6   0.5   0.0 |    7.2
                    |                                                                         |
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Observations of WEATHER may me innacurate due to early ASOS inconsistancies.  Average days
with Thunderstorms may be low due to poor 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.