STATION:  MULLAN PASS (KMLP), ID

CLIMATOLOGICAL SUMMARY.  Period of Record: Jul 1996 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        |  25.9  27.7  32.6  39.3  48.7  57.0  68.8  67.9  57.1  43.5  32.1  25.7 |   43.9
Avg Min Temp        |  18.4  19.3  22.3  26.8  35.1  42.0  52.4  51.4  43.0  32.2  23.8  17.7 |   32.0
Avg Temperature     |  22.2  23.5  27.5  33.1  41.9  49.5  60.6  59.6  50.1  37.8  28.0  21.7 |   38.0
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    46    46    57    62    75    82    87    86    82    72    57    43 |     87
                    |                                                                         |
    Date of Ext-Day |    23    24    30    30    24    29    11    15    06    01    08    26 |
               -Year|  2005  2005  2004  1998  2003  2008  2002  2003  1998  2008  2004  1999 |
                    |                                                                         |
    Extreme Min Temp|   -13   -20     0     7    17    22    32    31    17    -2     0   -20 |    -20
                    |                                                                         |
    Date of Ext-Day |    11    17    21    11    08    10    04    31    22    30    29    20 |
               -Year|  1998  2006  2002  1997  2002  2008  2000  1999  2000  2002  2006  1998 |
                    |                                                                         |
Heating Degree Days |  1327  1171  1164   958   717   469   181   200   457   842  1111  1342 |   9941
Cooling Degree Days |     0     0     0     0     1     5    45    33     9     0     0     0 |     92
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   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
    Max Temp >= 75  |   0.0   0.0   0.0   0.0   0.2   1.5   8.8   7.2   1.7   0.0   0.0   0.0 |   19.4
    Max Temp <= 32  |  25.9  22.4  17.1   7.4   1.9   0.0   0.0   0.0   0.1   5.0  17.2  25.6 |  122.5
                    |                                                                         |
    Min Temp <= 32  |  30.1  28.0  28.8  24.4  12.9   2.6   0.1   0.2   3.3  17.6  25.7  30.9 |  204.6
    Min Temp <= 20  |  17.5  16.0  12.2   5.4   0.4   0.0   0.0   0.0   0.2   1.5   9.7  19.2 |   82.1
    Min Temp  <= 0  |   1.3   0.5   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.2   0.1   1.4 |    3.6
                    |                                                                         |
Avg Dew Point Temp  |  18.7  18.8  21.8  24.7  30.3  36.4  39.9  37.7  33.8  28.0  22.7  17.6 |   27.5
Avg Wet Bulb Temp   |  21.0  21.7  25.0  29.4  36.2  42.4  49.1  47.4  41.7  33.3  26.5  20.2 |   32.8
                    |                                                                         |
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                    |                                                                         |
Avg Sea Level Pres  | 30.10 30.09 30.05 29.97 29.91 29.90 29.89 29.90 29.92 30.01 30.08 30.17 |  30.00
(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   0.3   0.9   1.9   1.3   1.5   0.6   0.0   0.0   0.0 |    6.6
    Heavy Fog       |  21.1  16.8  18.5  14.5  12.4   9.7   2.4   2.6   6.3  12.1  16.6  18.5 |  151.6
    Fog             |  24.6  20.7  22.3  17.5  14.7  12.1   4.5   4.4   7.5  14.2  19.8  21.1 |  183.2
    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     |  5.79  3.27  3.85  2.29  2.60  2.52  0.85  1.26  1.63  3.17  5.59  5.08 |  37.91
                    |                                                                         |
Maximum Daily       |  2.63  1.68  1.57  1.17  1.33  1.26  1.07  1.95  2.57  1.73  3.29  2.82 |   3.29
                    |                                                                         |
    Date of Ext-Day |    07    01    27    14    22    14    24    25    30    30    06    03 |
               -Year|  2002  2000  2005  2002  2002  2006  1998  2004  2005  1997  2006  2007 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |  19.9  14.3  17.9  14.4  13.8  12.3   6.0   6.4   8.7  13.8  17.6  16.5 |  161.5
    >= 0.10         |  13.0   7.9   9.8   7.5   7.0   7.2   2.3   2.8   4.1   8.2  11.7  10.8 |   92.3
    >= 0.25         |   8.1   4.5   5.8   3.0   3.7   3.8   1.0   1.2   2.2   4.3   7.5   7.2 |   52.3
    >= 0.50         |   3.7   2.2   2.2   0.7   1.3   1.2   0.3   0.9   0.7   1.6   3.3   3.5 |   21.4
    >= 1.00         |   0.8   0.3   0.4   0.2   0.3   0.1   0.2   0.2   0.2   0.3   1.0   0.7 |    4.5
                    |                                                                         |
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                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   5.3   5.9   6.5   6.0   5.9   5.9   5.5   5.5   5.7   6.3   6.3   5.3 |    5.8
Daily Avg Max 2-Min |  11.4  12.6  13.9  12.7  13.3  13.3  12.4  12.3  12.4  13.4  13.4  12.1 |   12.8
Daily Avg Peak Gust |  17.2  18.8  21.1  19.7  20.3  20.0  19.0  18.8  18.9  20.7  20.7  18.4 |   19.5
                    |                                                                         |
Maximum Daily Avg   |  15.3  15.3  14.7  14.0  12.4  11.6  11.5  11.5  12.8  13.0  16.3  15.1 |   16.3
                    |                                                                         |
Maximum 2-Minute Avg|    32    34    36    32    24    24    30    26    25    30    31    36 |     36
                    |                                                                         |
Date of Max 2min-Day|    01    02    19    04    13    14    10    19    08    22    19    21 |
               -Year|  1997  1999  2000  2000  1997  2000  2008  2003  2000  2001  1996  2008 |
                    |                                                                         |
Maximum Peak Gust   |    52    53    61    54    40    41    46    41    40    47    47    69 |     69
                    |                                                                         |
Date of Max Gust-Day|    01    06    19    14    19    14    21    19    25    28    16    21 |
               -Year|  1997  1999  2000  2002  2001  2000  1997  2003  1999  2003  2006  2008 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   3.3   3.1   4.6   2.1   2.3   0.9   1.3   1.0   1.6   3.7   4.4   4.1 |   32.2
   Peak Gust >=40   |   0.7   0.8   0.9   0.3   0.1   0.1   0.2   0.1   0.1   0.6   1.0   0.9 |    5.6
   Peak Gust >=50   |   0.1   0.1   0.1   0.2   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.3 |    0.8
                    |                                                                         |
   Max 2-Minute >=30|   0.1   0.3   0.3   0.2   0.0   0.0   0.1   0.0   0.0   0.2   0.2   0.0 |    1.3
   Max 2-Minute >=40|   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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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.