STATION:  BURNS MUNICIPAL AIRPORT (KBNO), OR

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        |  35.1  38.6  49.5  56.7  66.9  76.0  88.0  85.7  75.9  62.0  46.9  35.7 |   59.8
Avg Min Temp        |  15.5  17.6  25.0  28.8  36.4  41.3  48.2  44.8  35.9  27.1  22.7  15.3 |   29.9
Avg Temperature     |  25.3  28.1  37.3  42.7  51.6  58.6  68.1  65.3  55.9  44.6  34.8  25.5 |   44.8
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    57    59    74    80    92   100   107   100    97    89    70    65 |    107
                    |                                                                         |
    Date of Ext-Day |    31    04    29    13    28    29    12    10    03    09    06    16 |
               -Year|  2003  2007  2004  2008  2003  2008  2002  1996  1998  1996  1999  1998 |
                    |                                                                         |
    Extreme Min Temp|   -17   -11     4    10    13    24    29    22    17    -7   -15   -22 |    -22
                    |                                                                         |
    Date of Ext-Day |    24    10    03    12    01    01    08    31    27    31    29    17 |
               -Year|  2008  1999  2001  1997  2008  2000  1999  1999  1999  2002  2006  2008 |
                    |                                                                         |
Heating Degree Days |  1231  1043   859   669   418   211    38    68   281   634   905  1225 |   7583
Cooling Degree Days |     0     0     0     0     4    20   134    77     8     0     0     0 |    244
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   0.0   0.0   0.0   0.0   0.3   2.0  15.0  10.9   1.9   0.0   0.0   0.0 |   29.9
    Max Temp >= 75  |   0.0   0.0   0.0   1.4   7.6  17.6  29.2  28.1  18.2   4.0   0.0   0.0 |  106.2
    Max Temp <= 32  |  10.1   4.3   0.3   0.0   0.0   0.0   0.0   0.0   0.0   0.0   1.3  10.1 |   26.1
                    |                                                                         |
    Min Temp <= 32  |  29.8  27.4  27.7  20.8   8.6   3.0   0.3   0.8   9.6  23.5  26.6  29.4 |  207.5
    Min Temp <= 20  |  19.9  16.6   6.6   3.4   0.8   0.0   0.0   0.0   0.4   5.5  11.8  21.4 |   86.5
    Min Temp  <= 0  |   3.0   1.4   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.1   0.6   3.2 |    8.4
                    |                                                                         |
Avg Dew Point Temp  |  21.2  22.5  26.3  28.5  34.7  37.7  40.4  36.9  31.2  27.4  26.4  21.3 |   29.5
Avg Wet Bulb Temp   |  24.2  26.1  32.6  36.5  43.8  48.5  53.6  51.1  44.2  36.8  31.1  24.4 |   37.7
                    |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
Avg Sea Level Pres  | 30.18 30.15 30.08 30.01 29.98 29.95 29.95 29.96 30.00 30.09 30.16 30.22 |  30.06
(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   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0 |    0.0
    Heavy Fog       |   9.2   4.2   1.0   0.8   0.4   0.3   0.2   0.4   0.4   1.1   3.4   6.2 |   27.6
    Fog             |  18.0  12.1   8.4   7.1   5.3   2.3   1.1   1.0   1.9   5.8  11.9  16.1 |   91.0
    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     |  1.38  1.03  0.76  0.94  1.29  0.47  0.42  0.25  0.48  0.74  1.08  1.57 |  10.41
                    |                                                                         |
Maximum Daily       |  0.73  0.49  0.47  0.49  0.74  0.64  0.82  0.69  0.92  0.65  0.50  0.82 |   0.92
                    |                                                                         |
    Date of Ext-Day |    01    14    15    23    06    10    17    22    01    10    10    27 |
               -Year|  1997  1998  2003  2005  2005  2007  2000  2004  2000  2000  2007  2005 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |  12.3  10.9   9.9   9.5   9.6   4.5   3.8   3.1   3.8   5.7  11.6  13.4 |   98.0
    >= 0.10         |   5.4   3.8   2.9   3.4   3.8   1.6   1.2   0.9   1.3   2.4   3.6   5.3 |   35.6
    >= 0.25         |   1.5   1.0   0.6   1.1   1.8   0.5   0.5   0.2   0.5   1.2   0.9   1.7 |   11.6
    >= 0.50         |   0.3   0.0   0.0   0.0   0.4   0.1   0.1   0.1   0.2   0.2   0.1   0.6 |    1.9
    >= 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
                    |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   5.0   5.9   7.2   8.1   7.8   7.7   6.8   6.7   6.3   6.1   5.4   5.2 |    6.5
Daily Avg Max 2-Min |  14.8  15.8  19.0  20.5  20.1  18.9  18.0  18.3  17.2  17.1  15.5  15.0 |   17.5
Daily Avg Peak Gust |  17.4  18.6  23.0  25.0  25.0  24.0  22.9  23.4  21.6  20.9  18.5  17.7 |   21.5
                    |                                                                         |
Maximum Daily Avg   |  16.4  17.6  21.5  18.8  20.4  18.2  12.4  12.7  15.1  17.1  20.1  17.4 |   21.5
                    |                                                                         |
Maximum 2-Minute Avg|    44    40    39    39    41    35    44    39    41    41    39    40 |     44
                    |                                                                         |
Date of Max 2min-Day|    30    14    29    15    14    17    13    21    04    17    30    14 |
               -Year|  2004  2000  1998  2006  2000  2001  2002  2006  2003  2004  1998  2000 |
                    |                                                                         |
Maximum Peak Gust   |    51    47    47    45    48    45    52    59    52    49    51    48 |     59
                    |                                                                         |
Date of Max Gust-Day|    30    14    29    01    14    30    02    28    04    17    21    14 |
               -Year|  2004  2000  1998  1999  2000  1997  2006  2006  2003  2004  2006  2000 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   3.4   3.2   6.8   7.9   7.5   6.2   4.1   5.5   4.1   4.9   3.7   3.9 |   61.2
   Peak Gust >=40   |   0.8   0.4   0.8   0.8   1.0   0.6   0.9   1.2   0.9   0.7   0.9   0.7 |    9.7
   Peak Gust >=50   |   0.1   0.0   0.0   0.0   0.0   0.0   0.2   0.4   0.1   0.0   0.1   0.0 |    0.8
                    |                                                                         |
   Max 2-Minute >=30|   1.7   0.8   2.0   2.4   2.2   1.1   1.8   1.5   1.2   1.2   1.2   0.0 |   17.1
   Max 2-Minute >=40|   0.2   0.1   0.0   0.0   0.2   0.0   0.2   0.0   0.2   0.1   0.0   0.0 |    0.8
                    |                                                                         |
------------------------------------------------------------------------------------------------------

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.