STATION: VAN NUYS AIRPORT (KVNY), CA
CLIMATOLOGICAL SUMMARY. Period of Record: Apr 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 | 66.6 66.3 70.3 71.8 78.3 83.5 90.5 91.5 87.6 80.2 73.1 66.8 | 77.2
Avg Min Temp | 44.8 45.3 47.9 49.6 55.4 59.2 63.9 63.9 60.8 55.2 48.5 43.7 | 53.2
Avg Temperature | 55.7 55.8 59.1 60.7 66.8 71.3 77.2 77.7 74.2 67.7 60.8 55.3 | 65.2
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Extremes: | |
Extreme Max Temp| 92 87 93 101 103 110 112 108 110 101 95 88 | 112
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Date of Ext-Day | 31 22 11 27 03 20 22 30 02 13 07 02 |
-Year| 2003 2002 2007 2004 2004 2008 2006 1998 2007 1999 2006 2003 |
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Extreme Min Temp| 26 33 32 37 46 47 56 57 51 46 31 28 | 26
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Date of Ext-Day | 14 01 12 04 01 04 27 08 28 30 30 22 |
-Year| 2007 2002 2006 1999 1999 1999 1999 1999 1998 2000 2004 1998 |
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Heating Degree Days | 295 266 202 163 44 8 0 0 3 39 154 306 | 1480
Cooling Degree Days | 8 6 19 34 100 197 378 391 274 123 28 4 | 1563
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Avg Number of Days: | |
Max Temp >= 90 | 0.1 0.0 0.7 1.7 4.0 7.2 17.5 18.7 12.5 6.7 1.0 0.0 | 70.2
Max Temp >= 75 | 6.5 5.0 10.7 10.4 19.0 25.6 31.0 30.9 27.3 20.7 12.0 6.4 | 205.5
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 | 0.2 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.2 | 0.6
Min Temp <= 20 | 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
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 | 34.8 37.9 41.5 43.8 50.1 54.6 57.3 55.8 53.4 46.7 39.4 33.3 | 45.7
Avg Wet Bulb Temp | 46.4 47.5 50.2 51.8 57.0 60.9 64.4 63.8 61.4 56.0 50.3 45.6 | 54.6
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Avg Sea Level Pres | 30.08 30.05 30.00 29.97 29.91 29.88 29.89 29.88 29.86 29.93 30.03 30.09 | 29.96
(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 | 4.4 4.3 3.5 2.2 3.2 1.6 1.7 1.0 1.5 1.7 3.1 2.7 | 30.9
Heavy Fog | 1.1 1.0 2.2 0.1 0.1 0.1 0.0 0.4 0.5 1.6 1.1 0.6 | 8.8
Fog | 10.8 11.3 13.9 10.6 13.7 14.6 10.1 8.7 10.5 13.4 10.0 9.0 | 136.6
Hail | 0.1 0.2 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 | 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 | 2.17 3.58 1.23 1.01 0.25 0.05 0.00 0.03 0.13 0.65 0.62 0.96 | 10.67
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Maximum Daily | 2.83 3.20 1.48 1.98 0.92 0.21 0.02 0.30 0.59 1.23 1.18 2.57 | 3.20
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Date of Ext-Day | 10 12 28 04 03 02 23 29 22 17 26 28 |
-Year| 2001 2003 2006 2006 2003 1999 2007 2000 2007 2005 2008 2004 |
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Avg Number of Days: | |
>= 0.01 | 5.0 6.9 4.4 3.6 1.3 0.5 0.1 0.1 0.8 2.7 3.3 4.9 | 33.5
>= 0.10 | 3.1 5.1 2.2 1.7 0.7 0.2 0.0 0.1 0.3 1.5 1.5 1.7 | 18.0
>= 0.25 | 2.2 3.8 1.6 1.2 0.3 0.0 0.0 0.1 0.2 0.8 0.8 1.1 | 12.1
>= 0.50 | 1.7 2.2 0.9 0.6 0.2 0.0 0.0 0.0 0.1 0.5 0.5 0.5 | 7.2
>= 1.00 | 0.6 1.2 0.2 0.2 0.0 0.0 0.0 0.0 0.0 0.2 0.1 0.2 | 2.6
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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| 6.3 5.6 5.5 5.5 5.5 5.4 5.2 4.7 4.3 4.4 4.8 5.9 | 5.3
Daily Avg Max 2-Min | 16.9 16.5 16.4 15.8 14.9 14.2 14.1 13.6 13.4 14.0 14.9 16.6 | 15.1
Daily Avg Peak Gust | 21.1 20.5 20.5 19.8 18.3 17.4 17.2 16.6 16.7 17.3 18.4 20.8 | 18.7
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Maximum Daily Avg | 24.1 20.6 22.6 19.4 17.2 8.8 7.9 7.4 14.0 22.1 18.3 21.5 | 24.1
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Maximum 2-Minute Avg| 43 33 41 38 31 30 22 18 29 39 36 44 | 44
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Date of Max 2min-Day| 06 23 27 12 21 06 11 02 03 20 26 14 |
-Year| 2003 2007 2003 2007 2008 2007 1999 2000 1998 2007 2002 2001 |
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Maximum Peak Gust | 49 44 52 53 41 38 35 24 37 49 45 51 | 53
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Date of Max Gust-Day| 06 23 27 12 21 06 17 30 28 20 21 14 |
-Year| 2003 2007 2003 2007 2008 2007 2006 2005 2005 2007 1999 2001 |
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Avg Number of Days: | |
Peak Gust >=30 | 6.9 4.2 4.7 2.2 1.4 0.5 0.1 0.0 0.5 2.0 4.4 6.8 | 33.6
Peak Gust >=40 | 1.1 0.5 0.8 0.1 0.1 0.0 0.0 0.0 0.0 0.5 0.5 1.0 | 4.6
Peak Gust >=50 | 0.0 0.0 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 | 0.3
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Max 2-Minute >=30| 2.2 1.2 1.2 0.4 0.2 0.1 0.0 0.0 0.0 0.5 0.9 0.0 | 6.6
Max 2-Minute >=40| 0.1 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 | 0.2
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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.