STATION: RED BLUFF MUNICIPAL ARPT (KRBL), CA
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
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Avg Max Temp | 54.3 59.2 66.1 70.7 81.5 90.6 98.0 96.1 90.1 77.9 62.9 55.2 | 75.2
Avg Min Temp | 37.9 40.2 43.2 46.3 54.2 61.5 65.4 62.9 58.4 50.2 42.9 38.0 | 50.1
Avg Temperature | 46.1 49.7 54.7 58.5 67.8 76.0 81.7 79.5 74.2 64.0 52.9 46.6 | 62.7
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Extremes: | |
Extreme Max Temp| 74 79 89 96 105 117 115 113 108 105 84 77 | 117
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Date of Ext-Day | 02 08 17 26 31 25 12 10 01 01 01 16 |
-Year| 1999 2006 2004 2004 2001 2006 1999 1996 1998 2001 1997 1998 |
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Extreme Min Temp| 20 25 28 30 37 46 54 54 41 36 29 21 | 20
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Date of Ext-Day | 14 16 10 09 11 03 20 06 30 31 12 22 |
-Year| 2007 2006 2006 1999 2000 1999 1999 1996 2007 2003 2000 1998 |
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Heating Degree Days | 586 432 327 218 62 6 0 0 6 99 364 570 | 2670
Cooling Degree Days | 0 0 6 23 148 337 519 447 283 70 1 0 | 1833
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Avg Number of Days: | |
Max Temp >= 90 | 0.0 0.0 0.0 0.8 8.1 17.5 27.9 25.0 17.2 3.2 0.0 0.0 | 99.6
Max Temp >= 75 | 0.0 1.4 6.5 10.3 22.7 28.4 31.0 30.9 28.7 20.3 3.5 0.1 | 183.7
Max Temp <= 32 | 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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Min Temp <= 32 | 6.9 3.1 0.9 0.3 0.0 0.0 0.0 0.0 0.0 0.0 1.5 7.2 | 19.8
Min Temp <= 20 | 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 | 0.1
Min Temp <= 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 | 0.0
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Avg Dew Point Temp | 37.8 38.7 39.7 41.2 45.1 47.6 52.4 50.6 45.5 40.6 41.7 37.4 | 43.2
Avg Wet Bulb Temp | 42.0 44.5 47.4 50.0 55.9 60.4 64.4 62.8 58.3 51.7 46.0 42.3 | 52.1
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Avg Sea Level Pres | 30.15 30.09 30.05 30.00 29.93 29.87 29.86 29.87 29.87 29.98 30.10 30.16 | 29.99
(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 | 0.3 0.5 1.1 2.0 1.1 1.3 0.9 0.5 0.2 0.4 0.4 0.2 | 8.9
Heavy Fog | 5.3 1.4 0.2 0.3 0.1 0.0 0.0 0.0 0.1 0.2 1.3 2.8 | 11.6
Fog | 18.8 12.2 8.9 5.9 4.1 1.5 0.2 0.9 0.9 3.7 13.4 16.3 | 86.8
Hail | 0.0 0.2 0.0 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 | 0.5
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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 | 4.24 4.28 2.26 1.65 1.40 0.40 0.13 0.08 0.21 1.28 3.08 4.46 | 23.48
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Maximum Daily | 2.14 2.24 1.81 1.02 1.88 0.68 0.86 0.37 0.78 2.10 2.77 2.84 | 2.84
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Date of Ext-Day | 25 02 05 12 28 11 18 19 14 24 07 27 |
-Year| 2008 1998 2006 2006 1998 1998 2007 1997 1997 1998 2005 2004 |
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Avg Number of Days: | |
>= 0.01 | 13.0 11.3 9.2 6.9 5.3 1.7 0.3 0.6 1.2 4.7 10.0 12.2 | 76.4
>= 0.10 | 7.5 7.1 4.8 4.1 2.8 1.0 0.2 0.3 0.6 2.5 5.8 8.2 | 44.9
>= 0.25 | 5.4 4.9 3.0 3.0 2.0 0.8 0.2 0.2 0.4 1.8 4.2 5.8 | 31.6
>= 0.50 | 3.2 3.4 1.2 1.0 0.6 0.3 0.2 0.0 0.1 0.8 2.4 3.1 | 16.1
>= 1.00 | 1.1 1.1 0.4 0.1 0.3 0.0 0.0 0.0 0.0 0.2 0.5 1.1 | 4.7
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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| 7.4 8.7 8.3 8.5 8.3 8.4 6.8 6.8 7.1 7.5 7.2 8.4 | 7.8
Daily Avg Max 2-Min | 16.7 18.6 18.3 18.8 18.2 18.5 16.3 16.5 16.2 16.7 16.2 18.4 | 17.4
Daily Avg Peak Gust | 20.0 22.6 22.4 23.3 22.9 23.2 20.4 20.6 20.2 20.6 19.7 22.2 | 21.5
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Maximum Daily Avg | 26.0 29.3 23.0 22.9 20.9 23.0 13.7 17.2 21.1 21.3 27.4 30.9 | 30.9
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Maximum 2-Minute Avg| 45 51 47 39 39 35 36 38 33 39 45 52 | 52
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Date of Max 2min-Day| 01 25 04 28 18 08 01 23 27 28 07 15 |
-Year| 2004 2004 2001 2004 2005 2002 1997 1999 1999 2000 1998 2002 |
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Maximum Peak Gust | 56 59 60 53 47 43 40 51 45 47 54 61 | 61
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Date of Max Gust-Day| 01 25 04 16 18 10 01 23 22 27 07 15 |
-Year| 2004 2004 2001 2002 2005 2008 1997 1999 2006 1999 1998 2002 |
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Avg Number of Days: | |
Peak Gust >=30 | 5.7 6.8 6.1 6.6 5.5 3.9 0.8 1.1 2.6 5.8 4.7 8.2 | 57.8
Peak Gust >=40 | 1.8 2.1 1.3 1.3 0.7 0.2 0.1 0.1 0.2 0.9 1.2 3.2 | 13.0
Peak Gust >=50 | 0.2 0.4 0.1 0.1 0.0 0.0 0.0 0.1 0.0 0.0 0.4 0.6 | 1.8
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Max 2-Minute >=30| 2.9 3.6 2.2 2.5 1.0 0.5 0.1 0.2 0.3 1.7 1.9 0.0 | 16.9
Max 2-Minute >=40| 0.3 0.4 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.0 | 1.2
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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.