STATION:  BLUE CANYON - NYACK ARPT (KBLU), CA

CLIMATOLOGICAL SUMMARY.  Period of Record: Jul 1996 to Dec 2008

Summaries based on unedited daily ASOS data.  Errors may be present.

-----------------------------------------------------------------------------------------------

TEMPERATURE (F)     |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Avg Max Temp        |  43.8  43.0  47.8  50.0  60.7  69.0  77.2  76.7  71.3  61.0  50.1  44.2 |   57.9
Avg Min Temp        |  32.9  32.0  35.3  36.6  46.3  54.3  62.7  61.7  56.1  47.2  38.6  33.6 |   44.8
Avg Temperature     |  38.4  37.5  41.5  43.3  53.5  61.7  69.9  69.2  63.7  54.1  44.4  38.9 |   51.3
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    65    65    70    72    83    91    93    91    91    83    76    66 |     93
                    |                                                                         |
    Date of Ext-Day |    16    04    30    28    30    25    08    15    02    08    16    17 |
               -Year|  2003  2007  2002  2006  2001  2006  2008  2008  1998  1996  2008  1998 |
                    |                                                                         |
    Extreme Min Temp|     8    16    17    19    26    30    43    45    31    27    19    11 |      8
                    |                                                                         |
    Date of Ext-Day |    13    10    11    09    17    03    01    06    19    27    29    21 |
               -Year|  1997  1999  2006  1999  1998  1999  1997  1999  2004  2004  2006  1998 |
                    |                                                                         |
Heating Degree Days |   826   777   727   650   373   152    23    29   119   352   619   809 |   5456
Cooling Degree Days |     0     0     0     0    17    52   176   159    80    13     0     0 |    497
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   0.0   0.0   0.0   0.0   0.0   0.1   0.4   0.2   0.1   0.0   0.0   0.0 |    0.7
    Max Temp >= 75  |   0.0   0.0   0.0   0.0   3.3   8.2  21.7  20.3  12.9   2.1   0.2   0.0 |   68.7
    Max Temp <= 32  |   3.7   3.5   2.8   1.7   0.0   0.0   0.0   0.0   0.0   0.0   0.8   3.5 |   16.1
                    |                                                                         |
    Min Temp <= 32  |  15.7  17.3  13.0  11.5   3.1   0.3   0.0   0.0   0.1   1.9   8.7  14.7 |   86.3
    Min Temp <= 20  |   1.7   0.6   0.5   0.2   0.0   0.0   0.0   0.0   0.0   0.0   0.2   1.1 |    4.3
    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  |  22.0  24.3  26.2  28.9  34.3  38.3  41.9  39.1  34.9  29.2  27.0  21.8 |   30.7
Avg Wet Bulb Temp   |  32.2  32.3  35.1  37.0  44.0  49.2  54.3  52.7  48.8  42.4  36.8  32.4 |   41.4
                    |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
Avg Sea Level Pres  | 30.11 30.06 30.03 29.99 29.93 29.88 29.89 29.89 29.88 29.97 30.07 30.11 |  29.98
(Inches of Mercury) |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
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   0.2   0.2   0.1   0.1   0.2   0.1   0.0   0.0   0.0 |    0.7
    Heavy Fog       |  10.7  13.8  10.6  10.4   5.4   1.8   0.0   0.3   1.1   3.8   9.3  10.4 |   77.5
    Fog             |  13.2  16.1  13.3  13.2   7.2   3.3   0.2   0.8   2.4   5.5  11.3  12.5 |   98.9
    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
                    |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
PRECIPITATION (In)  |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Average Monthly     | 11.53 12.01  6.54  5.07  3.63  0.94  0.08  0.29  0.58  3.14  7.74 13.24 |  64.79
                    |                                                                         |
Maximum Daily       | 10.10  4.72  3.61  3.16  4.17  1.55  0.50  1.05  0.86  2.75  5.05  5.80 |  10.10
                    |                                                                         |
    Date of Ext-Day |    01    13    06    03    18    08    15    02    15    27    17    01 |
               -Year|  1997  2000  2002  2006  2005  2005  1996  2003  1996  1999  1996  2005 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |  13.2  14.2  11.0  12.1   6.9   2.8   0.4   1.1   2.8   5.4  10.6  14.1 |   94.5
    >= 0.10         |  10.2  11.0   8.6   8.0   5.5   1.8   0.2   0.6   1.4   3.8   8.5  11.5 |   71.0
    >= 0.25         |   8.4   9.2   6.6   5.7   4.1   1.2   0.2   0.3   1.0   3.1   6.6   9.6 |   56.0
    >= 0.50         |   6.1   7.0   4.7   3.7   2.7   0.7   0.1   0.2   0.4   2.4   5.1   7.4 |   40.4
    >= 1.00         |   3.8   4.3   2.0   1.3   1.1   0.3   0.0   0.1   0.0   0.9   2.6   4.4 |   20.8
                    |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   5.9   5.8   5.7   5.7   5.2   4.9   4.4   4.6   5.1   5.2   5.2   6.6 |    5.4
Daily Avg Max 2-Min |  15.2  15.6  14.9  15.0  14.1  13.3  12.5  13.3  13.9  14.0  13.9  16.1 |   14.3
Daily Avg Peak Gust |  22.4  22.6  21.2  21.4  20.0  18.7  17.2  18.5  19.7  20.3  20.3  23.7 |   20.5
                    |                                                                         |
Maximum Daily Avg   |  24.0  22.0  17.3  16.1  15.1  12.9   8.3  10.5  14.4  18.0  20.9  20.3 |   24.0
                    |                                                                         |
Maximum 2-Minute Avg|    48    40    37    33    29    24    22    22    24    33    46    38 |     48
                    |                                                                         |
Date of Max 2min-Day|    04    25    14    24    02    14    10    04    22    17    07    31 |
               -Year|  2008  2004  2003  2003  2001  2000  2007  2002  2006  2004  2002  2005 |
                    |                                                                         |
Maximum Peak Gust   |    72    67    56    44    49    37    31    33    44    49    60    60 |     72
                    |                                                                         |
Date of Max Gust-Day|    04    27    01    22    02    13    13    25    22    16    07    31 |
               -Year|  2008  2006  2002  1999  2001  2001  1999  2008  2006  1999  2002  2005 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   7.3   6.4   5.0   4.3   2.1   0.6   0.2   0.4   1.4   4.7   5.7   9.3 |   47.3
   Peak Gust >=40   |   1.7   2.0   0.8   0.7   0.3   0.0   0.0   0.0   0.1   0.9   0.9   2.9 |   10.4
   Peak Gust >=50   |   0.4   0.6   0.2   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.3   0.4 |    1.8
                    |                                                                         |
   Max 2-Minute >=30|   0.8   1.4   0.7   0.2   0.0   0.0   0.0   0.0   0.0   0.6   0.5   0.0 |    4.2
   Max 2-Minute >=40|   0.1   0.2   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.1   0.0 |    0.3
                    |                                                                         |
------------------------------------------------------------------------------------------------------

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.