STATION:  LIVINGSTON-MISSION FIELD AIRPORT (KLVM), MT

CLIMATOLOGICAL SUMMARY.  Period of Record: Oct 2000 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        |  36.9  38.4  46.7  54.7  64.2  73.1  88.4  84.5  72.7  58.0  45.4  36.5 |   58.3
Avg Min Temp        |  18.0  17.6  23.2  29.7  36.2  43.7  50.9  47.2  40.2  32.1  24.9  18.5 |   31.8
Avg Temperature     |  27.4  28.0  35.0  42.2  50.2  58.4  69.7  65.9  56.4  45.1  35.2  27.5 |   45.1
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    62    62    75    80    88    98   103   102    95    85    73    60 |    103
                    |                                                                         |
    Date of Ext-Day |    23    03    31    28    13    29    12    13    03    01    21    11 |
               -Year|  2005  2005  2004  2007  2001  2007  2002  2003  2001  2008  2002  2004 |
                    |                                                                         |
    Extreme Min Temp|   -26   -31    -7     2    11    31    33    29    24    -7   -12   -24 |    -31
                    |                                                                         |
    Date of Ext-Day |    05    17    01    02    09    23    12    17    30    31    29    11 |
               -Year|  2004  2006  2002  2002  2002  2003  2008  2002  2003  2003  2006  2000 |
                    |                                                                         |
Heating Degree Days |  1165  1046   931   684   461   216    18    60   273   619   895  1162 |   7532
Cooling Degree Days |     0     0     0     0     2    18   163    88    16     1     0     0 |    287
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   0.0   0.0   0.0   0.0   0.0   1.6  14.4   9.6   2.0   0.0   0.0   0.0 |   27.6
    Max Temp >= 75  |   0.0   0.0   0.1   1.0   7.2  14.7  29.5  27.4  14.4   3.1   0.0   0.0 |   97.4
    Max Temp <= 32  |   9.2   7.7   3.8   1.0   0.1   0.0   0.0   0.0   0.0   1.5   5.7  10.6 |   39.6
                    |                                                                         |
    Min Temp <= 32  |  26.9  26.5  25.0  19.1   9.8   0.6   0.0   0.1   3.6  14.9  20.8  26.6 |  173.9
    Min Temp <= 20  |  15.0  15.1  11.1   2.9   1.0   0.0   0.0   0.0   0.0   3.0  10.4  16.1 |   74.6
    Min Temp  <= 0  |   4.1   2.8   1.3   0.0   0.0   0.0   0.0   0.0   0.0   0.3   1.5   3.7 |   13.6
                    |                                                                         |
Avg Dew Point Temp  |  13.7  13.9  19.3  26.3  34.2  42.5  43.6  40.3  34.2  28.0  19.5  14.7 |   27.5
Avg Wet Bulb Temp   |  23.2  23.1  29.0  35.1  42.7  50.0  55.0  52.3  45.3  37.3  29.2  23.4 |   37.1
                    |                                                                         |
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                    |                                                                         |
Avg Sea Level Pres  | 30.13 30.10 30.06 30.03 30.00 29.95 29.93 29.95 29.99 30.08 30.11 30.14 |  30.04
(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   1.4   5.0   8.2   9.1   6.9   2.0   0.1   0.0   0.0 |   32.7
    Heavy Fog       |   0.9   1.0   2.1   1.5   0.6   0.1   0.0   0.4   0.0   1.0   0.7   0.8 |    9.1
    Fog             |   7.1   9.8   9.6   9.4   7.2   6.0   1.9   2.2   3.1   6.4   6.4   7.4 |   76.6
    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     |  0.36  0.58  0.75  1.89  2.57  2.25  0.94  0.71  1.14  1.53  0.42  0.37 |  13.50
                    |                                                                         |
Maximum Daily       |  0.47  0.36  0.69  0.96  1.13  1.60  0.80  0.42  1.38  1.48  0.39  0.55 |   1.60
                    |                                                                         |
    Date of Ext-Day |    14    28    26    18    27    12    04    03    23    16    02    26 |
               -Year|  2003  2004  2003  2005  2006  2001  2004  2005  2005  2006  2005  2003 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |   5.0   7.6   9.1  11.9  12.6  12.0   8.6   8.2   7.1   9.4   7.0   6.3 |  105.0
    >= 0.10         |   1.4   1.9   2.1   5.9   6.2   6.0   2.8   2.1   3.2   4.4   1.3   0.9 |   38.2
    >= 0.25         |   0.1   0.8   0.6   2.8   4.0   2.6   1.1   0.9   1.6   2.4   0.3   0.1 |   17.3
    >= 0.50         |   0.0   0.0   0.2   0.9   1.8   1.0   0.4   0.0   0.5   0.6   0.0   0.1 |    5.4
    >= 1.00         |   0.0   0.0   0.0   0.0   0.2   0.4   0.0   0.0   0.1   0.1   0.0   0.0 |    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|  19.6  16.7  15.7  13.0  11.6  10.5   9.4  10.2  10.9  13.5  18.0  19.4 |   14.0
Daily Avg Max 2-Min |  36.0  31.7  30.7  27.4  26.6  25.9  26.3  26.6  24.6  27.8  33.5  35.9 |   29.4
Daily Avg Peak Gust |  44.4  38.9  37.5  33.6  32.7  32.2  32.6  33.1  30.4  34.2  41.7  44.5 |   36.3
                    |                                                                         |
Maximum Daily Avg   |  44.9  37.5  37.5  32.1  25.1  24.4  19.3  22.5  24.7  35.0  40.7  43.1 |   44.9
                    |                                                                         |
Maximum 2-Minute Avg|    64    62    59    68    53    55    53    54    43    58    64    62 |     68
                    |                                                                         |
Date of Max 2min-Day|    31    11    11    30    20    22    15    02    01    10    12    28 |
               -Year|  2008  2002  2002  2001  2008  2005  2001  2002  2002  2001  2007  2008 |
                    |                                                                         |
Maximum Peak Gust   |    84    74    78    77    66    67    61    61    54    70    82    79 |     84
                    |                                                                         |
Date of Max Gust-Day|    10    10    03    30    20    22    15    02    16    18    12    24 |
               -Year|  2006  2002  2008  2001  2008  2005  2001  2002  2003  2007  2007  2007 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |  24.4  20.0  21.1  19.6  18.1  18.2  17.9  18.6  15.2  18.9  23.7  25.1 |  240.9
   Peak Gust >=40   |  18.1  13.9  12.6   6.6   6.5   4.8   7.0   8.1   5.0   9.9  16.3  19.2 |  128.1
   Peak Gust >=50   |  11.6   6.4   5.6   2.5   1.1   1.1   1.8   2.1   0.4   2.8   7.8  12.1 |   55.4
                    |                                                                         |
   Max 2-Minute >=30|  21.0  16.2  16.5  10.8  10.8   8.6   9.4  10.8   7.4  13.1  19.3   0.0 |  143.8
   Max 2-Minute >=40|  12.0   6.4   6.0   2.6   1.2   1.4   2.0   1.6   0.9   3.4   8.7   0.0 |   46.3
                    |                                                                         |
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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.