STATION: ALTURAS MUNICIPAL AIRPORT (KAAT), CA
CLIMATOLOGICAL SUMMARY. Period of Record: Jun 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
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Avg Max Temp | 42.3 45.4 53.0 57.6 69.0 78.7 89.8 87.0 79.0 66.0 50.5 41.4 | 63.3
Avg Min Temp | 19.4 21.7 24.5 28.7 35.6 41.0 46.3 42.9 35.5 27.8 24.2 19.5 | 30.6
Avg Temperature | 30.8 33.5 38.8 43.2 52.3 59.8 68.0 64.9 57.3 46.9 37.3 30.5 | 46.9
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Extremes: | |
Extreme Max Temp| 62 64 77 80 93 100 107 101 98 87 73 61 | 107
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Date of Ext-Day | 31 22 20 26 31 25 10 15 02 01 14 01 |
-Year| 2003 2002 2004 2004 2001 2006 2002 2008 1998 2001 1999 2008 |
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Extreme Min Temp| -9 -6 -6 13 17 22 35 28 21 0 -4 -14 | -14
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Date of Ext-Day | 13 05 08 09 01 04 05 31 24 31 29 17 |
-Year| 2005 2008 2002 2001 2008 2001 1999 1999 2000 2002 2004 2008 |
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Heating Degree Days | 1059 889 813 655 396 173 25 60 239 562 830 1071 | 6774
Cooling Degree Days | 0 0 0 0 2 18 119 58 7 0 0 0 | 204
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Avg Number of Days: | |
Max Temp >= 90 | 0.0 0.0 0.0 0.0 0.9 3.0 16.9 11.7 3.1 0.0 0.0 0.0 | 35.5
Max Temp >= 75 | 0.0 0.0 0.3 1.9 10.6 21.3 30.3 28.6 21.4 8.5 0.0 0.0 | 123.0
Max Temp <= 32 | 3.9 1.4 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.7 4.3 | 10.6
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Min Temp <= 32 | 28.0 26.4 28.4 22.2 9.1 2.2 0.0 0.7 9.7 23.9 24.1 28.3 | 203.0
Min Temp <= 20 | 15.1 12.7 7.9 2.9 0.2 0.0 0.0 0.0 0.0 3.3 10.2 16.3 | 68.6
Min Temp <= 0 | 1.6 0.4 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.4 1.1 | 3.7
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Avg Dew Point Temp | 23.7 25.0 26.7 29.2 34.0 37.1 39.3 37.2 32.2 27.6 28.2 24.0 | 30.4
Avg Wet Bulb Temp | 27.9 29.9 33.7 37.1 44.0 48.9 53.3 51.1 45.3 37.9 33.1 27.8 | 39.2
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Avg Sea Level Pres | 30.19 30.11 30.08 30.00 29.98 29.95 29.96 29.96 29.99 30.09 30.16 30.19 | 30.06
(Inches of Mercury) | |
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WEATHER | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec | Year
See disclaimer below| |
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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 | 4.7 2.4 2.5 1.9 0.6 0.3 0.3 0.1 0.7 2.4 3.5 3.4 | 22.7
Fog | 24.7 21.6 20.8 13.3 5.0 2.4 0.8 1.7 3.0 9.7 20.5 22.8 | 146.2
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
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Average Monthly | 1.14 1.23 1.11 1.36 1.22 0.42 0.22 0.31 0.45 0.72 1.57 1.40 | 11.15
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Maximum Daily | 0.62 0.82 0.60 0.64 0.92 0.84 1.07 0.49 0.91 0.91 1.04 1.01 | 1.07
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Date of Ext-Day | 24 09 01 11 28 10 22 10 25 28 29 06 |
-Year| 2000 1999 2004 2007 2008 1998 1998 1999 1998 2004 2003 2003 |
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Avg Number of Days: | |
>= 0.01 | 12.7 12.0 10.9 11.6 7.4 4.1 2.0 2.1 3.4 4.7 11.1 12.8 | 94.8
>= 0.10 | 3.5 4.3 4.5 5.1 3.8 1.4 0.4 0.9 1.6 2.0 5.5 4.5 | 37.5
>= 0.25 | 1.3 0.8 1.2 1.7 2.0 0.4 0.2 0.6 0.5 1.3 1.8 1.4 | 13.1
>= 0.50 | 0.3 0.3 0.2 0.1 0.4 0.2 0.1 0.0 0.1 0.3 0.6 0.4 | 3.0
>= 1.00 | 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.1 0.1 | 0.3
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WIND (MPH) | Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec | Year
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Daily Avg Wind Speed| 4.6 5.2 6.0 6.8 6.6 6.3 5.6 5.2 4.4 4.2 4.2 4.7 | 5.3
Daily Avg Max 2-Min | 15.2 16.2 18.9 20.1 19.9 20.1 20.1 19.3 17.2 15.3 14.7 15.4 | 17.7
Daily Avg Peak Gust | 18.4 20.1 23.5 25.4 25.5 25.8 25.6 24.8 22.2 19.3 18.4 19.0 | 22.3
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Maximum Daily Avg | 18.3 20.1 22.1 17.9 16.0 14.0 11.5 11.4 12.3 14.0 19.9 22.0 | 22.1
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Maximum 2-Minute Avg| 41 43 37 45 38 40 51 32 40 32 43 49 | 51
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Date of Max 2min-Day| 01 17 13 15 18 26 13 18 28 14 23 14 |
-Year| 2004 2004 2003 2006 2005 2006 1999 1999 2007 2005 1998 2002 |
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Maximum Peak Gust | 60 54 47 55 47 52 69 44 47 39 56 60 | 69
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Date of Max Gust-Day| 01 17 13 15 18 26 13 31 08 27 23 14 |
-Year| 2004 2004 2003 2006 2005 2006 1999 2007 1998 1999 1998 2002 |
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Avg Number of Days: | |
Peak Gust >=30 | 3.7 4.0 7.4 8.4 8.1 7.7 7.1 6.5 4.5 2.9 3.7 5.5 | 69.6
Peak Gust >=40 | 0.9 0.8 1.2 1.0 0.6 0.4 0.5 0.7 0.6 0.0 0.7 1.7 | 9.2
Peak Gust >=50 | 0.3 0.1 0.0 0.1 0.0 0.1 0.1 0.0 0.0 0.0 0.2 0.3 | 1.1
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Max 2-Minute >=30| 1.4 1.3 2.8 1.4 0.7 0.9 0.8 0.8 0.8 0.5 0.8 0.0 | 12.3
Max 2-Minute >=40| 0.3 0.2 0.0 0.1 0.0 0.1 0.1 0.0 0.1 0.0 0.2 0.0 | 1.1
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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.