STATION: STOCKTON METROPOLITAN AIRPORT (KSCK), CA
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 | 54.9 60.8 67.7 72.4 82.3 89.4 94.5 93.1 88.8 78.3 64.8 55.7 | 75.2
Avg Min Temp | 38.7 40.2 42.5 45.6 51.6 56.6 59.9 59.0 56.1 48.9 42.7 38.0 | 48.3
Avg Temperature | 46.8 50.5 55.1 59.0 67.0 73.0 77.2 76.1 72.5 63.6 53.8 46.8 | 61.8
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Extremes: | |
Extreme Max Temp| 68 74 87 96 107 107 115 109 113 100 84 69 | 115
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Date of Ext-Day | 08 25 16 26 31 14 23 04 19 01 02 08 |
-Year| 2004 2006 2007 2004 2001 2000 2006 1998 1998 2001 1997 2006 |
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Extreme Min Temp| 20 26 31 32 40 46 49 50 45 36 26 20 | 20
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Date of Ext-Day | 13 02 07 08 17 09 04 15 30 31 23 24 |
-Year| 2007 2002 1998 2001 1998 1999 1999 1999 2007 2002 2003 1998 |
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Heating Degree Days | 564 410 308 197 51 3 0 0 4 89 338 563 | 2527
Cooling Degree Days | 0 0 1 17 112 243 378 343 228 44 1 0 | 1366
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Avg Number of Days: | |
Max Temp >= 90 | 0.0 0.0 0.0 0.8 7.2 14.8 24.0 21.6 14.6 2.2 0.0 0.0 | 85.1
Max Temp >= 75 | 0.0 0.0 6.2 11.9 24.3 29.2 31.0 30.9 29.1 21.6 2.6 0.0 | 186.9
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 | 7.0 2.8 0.4 0.2 0.0 0.0 0.0 0.0 0.0 0.0 1.8 8.0 | 20.1
Min Temp <= 20 | 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 | 0.2
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 | 40.9 42.7 44.2 44.1 47.5 50.1 54.2 53.6 51.4 45.4 43.7 39.0 | 46.4
Avg Wet Bulb Temp | 43.7 46.5 49.4 51.2 55.9 59.6 63.1 62.4 59.9 53.5 47.8 42.1 | 52.9
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Avg Sea Level Pres | 30.14 30.08 30.05 30.01 29.94 29.88 29.88 29.88 29.87 29.97 30.09 30.14 | 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 | 0.0 0.2 0.2 0.1 0.1 0.0 0.0 0.0 0.1 0.0 0.0 0.1 | 0.7
Heavy Fog | 10.3 4.9 1.8 0.3 0.1 0.0 0.0 0.0 0.0 0.5 6.4 8.7 | 32.9
Fog | 25.2 20.8 14.4 7.0 3.0 1.2 0.8 1.1 3.5 7.9 20.5 24.1 | 129.5
Hail | 0.1 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 | 0.2
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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 | 2.92 2.67 1.38 1.01 0.62 0.06 0.04 0.06 0.07 0.74 1.72 2.51 | 13.79
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Maximum Daily | 1.46 1.46 1.09 1.02 1.02 0.16 0.03 0.06 0.29 1.29 1.50 1.92 | 1.92
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Date of Ext-Day | 02 03 22 04 12 03 17 22 20 19 08 21 |
-Year| 2006 1998 2005 2006 1998 1997 2007 2003 2005 2004 2002 1996 |
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Avg Number of Days: | |
>= 0.01 | 13.6 11.7 9.0 6.0 3.8 1.9 3.2 4.6 1.5 4.9 12.0 12.2 | 84.5
>= 0.10 | 6.2 6.4 4.1 2.9 1.8 0.2 0.0 0.0 0.2 1.7 4.0 6.2 | 33.7
>= 0.25 | 3.5 4.0 2.1 1.4 0.8 0.0 0.0 0.0 0.1 0.8 2.3 3.5 | 18.5
>= 0.50 | 2.1 1.9 0.6 0.4 0.3 0.0 0.0 0.0 0.0 0.5 1.1 1.5 | 8.3
>= 1.00 | 0.5 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.0 0.2 0.2 0.3 | 1.5
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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| 6.2 7.1 7.3 8.6 9.5 9.8 8.5 8.0 7.2 6.2 5.4 6.8 | 7.5
Daily Avg Max 2-Min | 15.3 16.8 16.8 19.1 19.6 19.8 17.5 16.9 15.7 14.7 14.2 15.9 | 16.9
Daily Avg Peak Gust | 18.0 20.2 20.3 23.2 23.9 23.9 20.9 20.2 19.2 18.1 17.0 19.0 | 20.3
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Maximum Daily Avg | 22.0 21.1 20.7 19.7 23.2 19.2 15.6 17.3 17.6 19.6 21.6 21.0 | 23.2
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Maximum 2-Minute Avg| 61 41 36 37 41 34 31 30 31 39 47 41 | 61
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Date of Max 2min-Day| 18 06 28 03 02 02 03 05 14 19 24 14 |
-Year| 2008 1998 2006 1999 2001 1999 1999 2007 1997 2004 2001 2002 |
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Maximum Peak Gust | 62 54 43 44 48 43 38 39 38 48 58 51 | 62
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Date of Max Gust-Day| 18 06 04 02 02 02 03 30 19 19 24 16 |
-Year| 2008 1998 2001 1997 2001 1999 1999 2007 2007 2004 2001 2002 |
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Avg Number of Days: | |
Peak Gust >=30 | 3.4 4.9 3.5 5.4 4.0 3.6 1.0 0.5 0.9 2.0 2.0 4.8 | 35.9
Peak Gust >=40 | 0.8 1.3 0.3 0.7 0.3 0.1 0.0 0.0 0.0 0.2 0.6 1.0 | 5.3
Peak Gust >=50 | 0.4 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 | 0.8
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Max 2-Minute >=30| 1.6 2.6 0.8 1.8 0.8 0.5 0.1 0.1 0.2 0.6 0.8 0.0 | 9.9
Max 2-Minute >=40| 0.4 0.2 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.2 0.0 | 0.8
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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.