STATION:  SPRINGFIELD COMANCHE NATIONAL GRASSLAND (KSPD), CO

CLIMATOLOGICAL SUMMARY.  Period of Record: Jul 1998 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        |  47.4  50.5  58.4  68.2  77.8  86.4  91.9  88.6  81.7  70.2  58.5  48.1 |   69.0
Avg Min Temp        |  18.4  20.3  28.1  36.3  46.5  56.1  62.3  60.8  51.8  38.8  27.5  19.1 |   38.8
Avg Temperature     |  32.9  35.4  43.2  52.3  62.2  71.2  77.1  74.7  66.8  54.5  43.0  33.6 |   53.9
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    80    78    84    92   102   105   105   104   100    92    85    76 |    105
                    |                                                                         |
    Date of Ext-Day |    07    28    23    23    31    28    20    01    06    01    08    11 |
               -Year|  2006  2006  2004  2006  2002  2002  2005  2008  2000  2000  2006  2004 |
                    |                                                                         |
    Extreme Min Temp|    -6    -9     0    16    26    37    49    49    27    19     2   -12 |    -12
                    |                                                                         |
    Date of Ext-Day |    17    15    02    03    11    08    11    29    25    31    23    24 |
               -Year|  2008  2007  2002  2002  2008  2007  1999  2006  2000  2006  2003  2004 |
                    |                                                                         |
Heating Degree Days |   995   836   673   387   153    21     1     5    73   338   660   973 |   5115
Cooling Degree Days |     0     0     0     5    65   207   375   305   125    11     0     0 |   1094
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   0.0   0.0   0.0   0.3   4.0  12.2  21.7  15.9   7.2   1.0   0.0   0.0 |   62.3
    Max Temp >= 75  |   0.3   0.5   3.1  10.4  19.6  26.9  30.4  29.2  23.5  11.5   4.4   0.2 |  160.0
    Max Temp <= 32  |   4.9   3.3   1.4   0.1   0.0   0.0   0.0   0.0   0.0   0.2   0.7   4.2 |   14.8
                    |                                                                         |
    Min Temp <= 32  |  30.1  26.1  22.6   9.9   1.0   0.0   0.0   0.0   0.3   6.9  21.1  29.4 |  147.3
    Min Temp <= 20  |  18.0  13.6   5.7   0.3   0.0   0.0   0.0   0.0   0.0   0.1   6.4  16.2 |   60.2
    Min Temp  <= 0  |   0.7   0.7   0.2   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.7 |    2.3
                    |                                                                         |
Avg Dew Point Temp  |  17.5  18.6  24.8  29.8  40.7  49.9  55.2  55.2  46.2  35.2  23.5  17.4 |   34.5
Avg Wet Bulb Temp   |  26.9  28.9  35.4  42.2  51.2  58.7  63.2  62.4  55.0  44.8  34.4  27.1 |   44.2
                    |                                                                         |
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                    |                                                                         |
Avg Sea Level Pres  | 30.09 30.08 30.04 30.06 29.98 29.92 29.88 29.90 29.95 30.00 30.08 30.07 |  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   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0 |    0.0
    Heavy Fog       |   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
    Fog             |   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
    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     |  0.40  0.28  1.21  1.56  1.59  1.69  2.80  2.56  1.27  1.29  0.41  0.33 |  15.40
                    |                                                                         |
Maximum Daily       |  0.50  0.72  1.15  2.90  1.62  1.82  2.63  2.68  2.80  2.17  0.69  0.63 |   2.90
                    |                                                                         |
    Date of Ext-Day |    30    06    23    30    01    05    09    13    30    08    09    19 |
               -Year|  2005  2005  2007  1999  1999  2003  2006  2006  1998  1999  2004  2006 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |   4.0   3.3   7.5   7.1   7.5   8.0   8.7   9.6   6.1   5.8   4.3   3.2 |   75.2
    >= 0.10         |   1.8   0.9   2.6   3.3   3.4   4.2   4.8   5.2   2.4   2.5   1.4   0.7 |   33.1
    >= 0.25         |   0.3   0.2   1.5   2.0   2.1   2.1   2.8   2.9   1.0   1.5   0.6   0.3 |   17.3
    >= 0.50         |   0.1   0.1   0.8   0.7   1.0   1.0   1.8   1.4   0.7   0.7   0.1   0.3 |    8.7
    >= 1.00         |   0.0   0.0   0.2   0.3   0.3   0.1   0.7   0.5   0.3   0.3   0.0   0.0 |    2.6
                    |                                                                         |
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                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|  10.4  11.3  12.1  14.0  13.1  12.7  11.3  10.6  11.6  11.1  11.0  10.8 |   11.7
Daily Avg Max 2-Min |  22.0  24.4  25.1  29.0  27.5  27.5  24.6  23.2  23.5  23.1  22.6  22.6 |   24.6
Daily Avg Peak Gust |  25.9  29.2  30.2  35.2  33.6  33.7  30.3  28.5  28.7  28.1  27.2  27.0 |   29.8
                    |                                                                         |
Maximum Daily Avg   |  23.9  36.8  26.4  32.2  29.1  26.6  24.5  23.1  24.4  25.6  31.4  33.1 |   36.8
                    |                                                                         |
Maximum 2-Minute Avg|    48    59    53    66    51    59    53    55    52    44    49    55 |     66
                    |                                                                         |
Date of Max 2min-Day|    26    24    15    11    20    17    05    10    21    22    14    22 |
               -Year|  1999  2007  2001  2001  2008  2004  2003  2004  2006  2008  2006  2008 |
                    |                                                                         |
Maximum Peak Gust   |    57    69    64    78    64    74    67    71    62    54    60    64 |     78
                    |                                                                         |
Date of Max Gust-Day|    26    24    08    11    17    17    05    10    21    22    14    22 |
               -Year|  1999  2007  2000  2001  2000  2004  2003  2004  2006  2008  2006  2008 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   8.6  12.4  14.8  20.3  19.7  19.1  15.2  13.3  13.3  12.7  10.5  10.8 |  170.6
   Peak Gust >=40   |   2.8   3.7   5.1   8.8   7.6   6.9   3.2   2.8   2.5   2.8   3.2   3.5 |   52.9
   Peak Gust >=50   |   0.3   1.1   0.7   3.0   1.2   2.2   0.6   0.5   0.5   0.3   0.8   0.8 |   12.1
                    |                                                                         |
   Max 2-Minute >=30|   5.0   7.6   8.3  12.7  10.9  10.7   6.4   4.8   4.7   6.6   5.1   0.0 |   82.9
   Max 2-Minute >=40|   0.5   1.2   0.9   3.5   1.5   2.5   0.8   0.5   0.5   0.4   1.3   0.0 |   13.6
                    |                                                                         |
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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.