STATION: VANCOUVER PEARSON FIELD AIRPORT (KVUO), WA
CLIMATOLOGICAL SUMMARY. Period of Record: Sep 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 | 46.6 51.3 55.4 60.7 67.4 72.9 80.5 80.8 75.7 63.2 53.2 46.6 | 62.9
Avg Min Temp | 34.9 34.7 38.3 41.6 47.8 52.6 56.9 56.7 50.6 44.7 39.3 35.0 | 44.4
Avg Temperature | 40.8 43.0 46.8 51.1 57.6 62.7 68.7 68.8 63.2 54.0 46.2 40.8 | 53.6
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Extremes: | |
Extreme Max Temp| 66 65 76 89 96 101 104 102 95 81 70 63 | 104
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Date of Ext-Day | 18 23 11 30 16 26 21 14 04 16 13 04 |
-Year| 2005 2005 2005 1998 2008 2006 2006 2008 2003 2002 1999 2007 |
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Extreme Min Temp| 16 15 24 26 33 39 46 45 36 24 20 5 | 5
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Date of Ext-Day | 14 19 02 01 08 02 31 28 24 31 18 22 |
-Year| 2007 2006 2002 2008 2002 1999 2002 2000 2000 2006 2000 1998 |
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Heating Degree Days | 752 623 563 417 244 108 17 15 95 344 563 751 | 4491
Cooling Degree Days | 0 0 0 1 14 40 133 132 40 1 0 0 | 361
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Avg Number of Days: | |
Max Temp >= 90 | 0.0 0.0 0.0 0.0 0.8 1.8 4.0 4.1 1.6 0.0 0.0 0.0 | 12.3
Max Temp >= 75 | 0.0 0.0 0.2 2.1 6.9 10.3 23.9 23.8 15.9 2.5 0.0 0.0 | 85.7
Max Temp <= 32 | 0.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 | 1.4
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Min Temp <= 32 | 10.7 10.4 5.1 1.8 0.0 0.0 0.0 0.0 0.0 0.5 6.1 10.5 | 45.2
Min Temp <= 20 | 0.7 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.5 | 1.7
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 | 35.4 35.1 38.5 40.7 45.1 49.4 53.4 53.6 50.2 45.6 40.2 35.4 | 43.6
Avg Wet Bulb Temp | 38.6 39.8 43.1 46.1 51.1 55.3 59.6 59.7 55.9 49.8 42.7 38.7 | 48.4
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Avg Sea Level Pres | 30.12 30.14 30.10 30.06 30.06 30.04 30.03 30.01 30.02 30.11 30.12 30.21 | 30.08
(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 0.4 0.8 0.9 0.7 0.4 0.4 0.8 0.5 0.3 0.1 | 5.3
Heavy Fog | 3.9 2.8 1.7 0.3 0.2 0.2 0.0 0.0 0.9 4.3 4.9 3.0 | 22.0
Fog | 21.7 16.8 14.8 10.6 9.6 7.0 3.0 3.8 7.5 18.5 20.6 20.5 | 154.4
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 | 6.07 3.48 3.77 2.54 2.35 1.53 0.35 0.72 1.07 2.92 5.96 6.46 | 37.22
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Maximum Daily | 2.15 1.34 1.38 0.78 1.01 1.02 0.31 0.84 1.67 1.24 2.90 2.06 | 2.90
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Date of Ext-Day | 31 27 26 12 24 28 28 22 30 30 06 27 |
-Year| 2003 1999 2005 2003 1998 2002 2001 2004 2005 1997 2006 1998 |
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Avg Number of Days: | |
>= 0.01 | 21.1 16.2 19.3 16.2 13.9 9.2 3.7 3.9 6.5 15.7 19.7 20.5 | 165.8
>= 0.10 | 14.1 9.9 10.7 8.9 8.0 4.2 1.4 2.0 2.8 7.4 12.1 14.9 | 96.5
>= 0.25 | 8.9 4.9 4.9 3.1 3.0 2.2 0.3 0.9 1.5 4.3 7.7 9.1 | 50.9
>= 0.50 | 4.0 1.9 1.8 0.9 1.1 0.7 0.0 0.5 0.6 1.5 4.1 3.7 | 20.8
>= 1.00 | 0.8 0.3 0.3 0.0 0.1 0.1 0.0 0.0 0.1 0.4 1.1 0.9 | 4.0
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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| 5.4 5.2 4.9 4.6 4.6 5.0 5.3 4.9 4.1 4.0 4.6 5.5 | 4.8
Daily Avg Max 2-Min | 14.6 14.7 14.3 13.8 13.2 13.5 13.4 13.1 12.6 12.3 13.4 14.9 | 13.6
Daily Avg Peak Gust | 19.1 19.3 18.8 18.2 17.6 17.9 18.0 17.5 16.7 16.3 17.8 19.6 | 18.1
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Maximum Daily Avg | 15.1 20.2 12.9 14.3 10.1 9.4 8.9 10.2 11.9 14.9 16.1 18.5 | 20.2
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Maximum 2-Minute Avg| 36 31 34 29 34 24 20 20 24 29 33 33 | 36
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Date of Max 2min-Day| 16 06 03 22 01 18 12 17 18 27 23 04 |
-Year| 2000 1999 1999 2005 1998 2004 2003 2002 1998 1999 1998 2003 |
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Maximum Peak Gust | 46 46 52 38 53 33 28 28 36 44 47 49 | 53
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Date of Max Gust-Day| 16 06 02 15 01 19 07 26 18 27 15 14 |
-Year| 2000 1999 1999 1999 1998 2004 2008 1997 1998 1999 2006 2006 |
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Avg Number of Days: | |
Peak Gust >=30 | 4.0 3.4 2.4 1.1 0.3 0.3 0.0 0.0 0.5 1.6 2.3 3.7 | 19.5
Peak Gust >=40 | 0.2 0.6 0.2 0.0 0.1 0.0 0.0 0.0 0.0 0.1 0.3 0.5 | 2.0
Peak Gust >=50 | 0.0 0.0 0.1 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 | 0.2
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Max 2-Minute >=30| 0.1 0.5 0.2 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.1 0.0 | 0.9
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.