STATION:  KLAMATH FALLS AIRPORT (KLMT), OR

CLIMATOLOGICAL SUMMARY.  Period of Record: Nov 1997 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        |  39.8  43.7  51.2  56.1  65.3  74.9  85.0  83.1  75.8  63.0  47.6  39.1 |   60.4
Avg Min Temp        |  21.9  23.9  25.9  29.2  36.4  41.8  49.0  47.0  39.4  30.8  26.4  21.2 |   32.7
Avg Temperature     |  30.8  33.8  38.5  42.6  50.9  58.3  67.0  65.1  57.6  46.9  37.0  30.2 |   46.6
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    59    60    73    79    91    95   100   100   100    85    68    57 |    100
                    |                                                                         |
    Date of Ext-Day |    31    22    21    26    17    25    12    04    03    01    03    01 |
               -Year|  2003  2002  2004  2004  2008  2006  1999  1998  1998  2001  1997  2008 |
                    |                                                                         |
    Extreme Min Temp|    -3     0    10    13    17    23    34    31    24     8     1   -10 |    -10
                    |                                                                         |
    Date of Ext-Day |    13    05    18    04    01    04    04    31    29    31    29    21 |
               -Year|  2005  2008  2002  1999  2008  2001  1999  1999  2007  2002  2006  1998 |
                    |                                                                         |
Heating Degree Days |  1059   882   821   671   440   218    39    64   233   561   840  1080 |   6908
Cooling Degree Days |     0     0     0     0     3    17   101    66    11     0     0     0 |    198
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   0.0   0.0   0.0   0.0   0.2   0.7   7.3   5.2   0.9   0.0   0.0   0.0 |   14.3
    Max Temp >= 75  |   0.0   0.0   0.0   1.4   6.5  16.9  29.1  27.5  18.4   4.0   0.0   0.0 |  103.7
    Max Temp <= 32  |   4.7   1.2   0.3   0.0   0.0   0.0   0.0   0.0   0.0   0.0   1.0   5.2 |   12.4
                    |                                                                         |
    Min Temp <= 32  |  28.4  25.3  27.0  21.5   9.0   2.3   0.0   0.1   3.3  19.8  23.2  28.8 |  188.6
    Min Temp <= 20  |  12.2   8.8   5.4   1.7   0.2   0.0   0.0   0.0   0.0   1.4   6.0  14.2 |   49.9
    Min Temp  <= 0  |   0.4   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.8 |    1.3
                    |                                                                         |
Avg Dew Point Temp  |  25.4  26.1  27.7  30.3  36.4  40.8  47.0  45.0  38.7  32.3  30.0  25.2 |   33.7
Avg Wet Bulb Temp   |  28.6  30.5  33.9  37.2  44.1  49.6  56.0  54.0  47.8  39.6  33.6  28.2 |   40.3
                    |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
Avg Sea Level Pres  | 30.16 30.10 30.07 30.00 29.98 29.96 29.96 29.96 29.99 30.08 30.13 30.20 |  30.05
(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   |   1.0   0.4   0.6   1.4   2.5   2.4   4.4   3.4   1.7   1.0   0.6   0.5 |   19.8
    Heavy Fog       |   5.9   1.9   2.0   2.3   2.3   4.2   1.5   1.1   1.9   3.3   5.7   6.0 |   38.0
    Fog             |  21.1  13.4  14.4  13.2  10.5  10.5  10.5  10.8  10.1  13.0  19.1  18.1 |  164.7
    Hail            |   0.0   0.0   0.2   0.6   0.5   0.0   0.2   0.1   0.0   0.0   0.0   0.0 |    1.5
                    |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
PRECIPITATION (In)  |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Average Monthly     |  1.75  1.32  0.77  1.05  1.13  0.47  0.15  0.48  0.30  0.75  1.96  1.70 |  11.84
                    |                                                                         |
Maximum Daily       |  1.11  0.81  0.51  0.92  0.79  0.85  0.42  1.57  0.58  0.80  1.43  1.37 |   1.57
                    |                                                                         |
    Date of Ext-Day |    10    17    31    30    08    28    25    10    09    19    06    30 |
               -Year|  2000  2004  2003  2002  2005  2004  2003  1999  2003  2007  2005  2005 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |  13.8  11.1   9.7   9.7   8.7   3.9   1.7   2.5   2.5   6.0  12.5  12.8 |   94.9
    >= 0.10         |   5.4   4.2   2.4   3.5   3.4   1.3   0.5   1.1   1.0   2.6   5.7   4.7 |   35.6
    >= 0.25         |   2.1   1.7   0.5   1.2   1.5   0.5   0.3   0.5   0.4   1.1   2.4   2.0 |   14.0
    >= 0.50         |   0.6   0.5   0.1   0.3   0.5   0.3   0.0   0.3   0.1   0.3   0.9   0.5 |    4.3
    >= 1.00         |   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.1   0.0   0.0   0.2   0.2 |    0.6
                    |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   6.3   7.3   7.5   7.7   7.4   6.8   5.4   5.2   4.9   5.2   5.7   6.1 |    6.3
Daily Avg Max 2-Min |  17.0  18.6  19.9  20.4  19.9  19.5  17.9  17.6  16.5  16.1  16.1  17.2 |   18.1
Daily Avg Peak Gust |  20.1  22.1  23.7  24.7  24.1  23.8  21.7  21.2  19.9  19.3  19.2  20.4 |   21.7
                    |                                                                         |
Maximum Daily Avg   |  25.9  26.9  27.6  19.2  19.1  16.0  10.9  11.6  13.0  17.3  21.6  29.0 |   29.0
                    |                                                                         |
Maximum 2-Minute Avg|    54    45    43    37    33    46    56    32    43    40    45    47 |     56
                    |                                                                         |
Date of Max 2min-Day|    01    06    02    08    01    28    25    23    27    27    16    01 |
               -Year|  2004  1999  1999  2000  2000  2004  2008  1999  1998  1999  2003  2001 |
                    |                                                                         |
Maximum Peak Gust   |    64    52    52    51    44    53    75    40    51    51    54    59 |     75
                    |                                                                         |
Date of Max Gust-Day|    01    06    02    30    13    28    25    10    16    27    23    06 |
               -Year|  2004  1999  1999  1998  2005  2004  2008  2000  2008  1999  1998  2004 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   5.7   5.7   7.3   6.5   4.6   4.2   1.8   2.1   2.9   4.0   4.7   7.4 |   57.1
   Peak Gust >=40   |   1.9   1.5   1.5   1.1   0.4   0.5   0.2   0.1   0.4   0.8   0.8   2.2 |   11.4
   Peak Gust >=50   |   0.4   0.1   0.1   0.1   0.0   0.1   0.2   0.0   0.1   0.1   0.2   0.7 |    1.9
                    |                                                                         |
   Max 2-Minute >=30|   2.8   2.9   2.9   2.3   0.6   0.7   0.3   0.7   0.7   1.2   2.3   0.0 |   17.5
   Max 2-Minute >=40|   0.4   0.2   0.5   0.0   0.0   0.1   0.1   0.0   0.1   0.1   0.1   0.0 |    1.5
                    |                                                                         |
------------------------------------------------------------------------------------------------------

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.