STATION: FRESNO YOSEMITE INTERNATIONAL AIRPORT (KFAT), 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 | 55.3 61.0 68.3 73.4 84.4 92.1 98.7 97.2 90.8 78.7 65.0 55.7 | 76.7
Avg Min Temp | 39.3 41.7 45.8 49.0 56.5 62.4 68.1 66.0 61.3 52.6 44.8 38.4 | 52.2
Avg Temperature | 47.3 51.3 57.1 61.2 70.5 77.3 83.4 81.6 76.1 65.6 54.9 47.1 | 64.4
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Extremes: | |
Extreme Max Temp| 70 77 87 98 106 110 113 112 106 99 83 77 | 113
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Date of Ext-Day | 13 03 18 27 31 21 23 13 03 03 02 07 |
-Year| 2000 2000 2004 2004 2001 2008 2006 1996 1998 2001 1997 2006 |
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Extreme Min Temp| 23 30 33 33 44 50 45 56 49 39 30 10 | 10
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Date of Ext-Day | 13 08 04 04 09 03 29 31 20 20 30 30 |
-Year| 2007 2001 2006 1999 2003 1999 2004 1999 2004 1996 2004 2004 |
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Heating Degree Days | 549 386 256 155 29 2 0 0 2 69 303 555 | 2307
Cooling Degree Days | 0 0 10 42 199 370 570 510 332 89 1 0 | 2122
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Avg Number of Days: | |
Max Temp >= 90 | 0.0 0.0 0.0 1.5 9.4 19.6 29.1 28.2 18.3 2.9 0.0 0.0 | 109.1
Max Temp >= 75 | 0.0 0.2 7.2 13.1 26.0 29.2 31.0 31.0 29.2 21.4 3.5 0.2 | 192.0
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 | 6.0 0.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6 5.2 | 12.6
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 0.1 | 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 | 41.1 42.6 44.4 43.2 46.0 49.2 53.8 53.2 50.6 46.1 44.9 40.2 | 46.3
Avg Wet Bulb Temp | 44.1 46.9 50.4 51.9 57.1 61.2 65.4 64.4 61.2 54.8 49.5 43.5 | 54.2
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Avg Sea Level Pres | 30.16 30.09 30.05 30.00 29.92 29.86 29.86 29.87 29.86 29.97 30.10 30.17 | 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 | 0.1 0.4 0.6 0.6 0.5 0.2 0.0 0.2 0.5 0.4 0.2 0.2 | 3.7
Heavy Fog | 10.0 3.4 1.0 0.1 0.1 0.0 0.0 0.0 0.1 0.4 5.1 7.6 | 27.7
Fog | 26.7 21.6 16.2 7.0 2.0 0.7 0.1 0.6 1.1 7.8 20.5 24.3 | 128.5
Hail | 0.0 0.3 0.1 0.2 0.0 0.0 0.0 0.0 0.0 0.1 0.0 0.0 | 0.7
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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 | 2.19 2.08 1.40 1.05 0.42 0.23 0.01 0.08 0.07 0.62 0.98 1.62 | 10.73
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Maximum Daily | 1.88 1.87 1.05 1.06 1.02 1.80 0.07 0.33 0.32 1.50 1.05 1.64 | 1.88
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Date of Ext-Day | 02 27 28 07 05 06 07 08 01 29 12 18 |
-Year| 2006 2000 2006 2001 2005 1998 2001 2004 2000 1996 2001 2007 |
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Avg Number of Days: | |
>= 0.01 | 9.8 10.8 6.7 5.1 2.6 0.8 0.2 1.0 0.6 2.4 8.5 9.3 | 57.8
>= 0.10 | 5.0 5.7 3.4 2.4 1.3 0.2 0.0 0.2 0.2 1.2 2.4 4.5 | 26.7
>= 0.25 | 3.4 2.8 2.3 1.3 0.5 0.2 0.0 0.1 0.2 0.8 0.9 1.9 | 14.3
>= 0.50 | 1.2 1.2 0.9 0.6 0.1 0.2 0.0 0.0 0.0 0.4 0.6 0.7 | 5.9
>= 1.00 | 0.2 0.2 0.2 0.1 0.1 0.1 0.0 0.0 0.0 0.2 0.2 0.2 | 1.2
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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| 4.3 5.0 5.7 7.2 8.3 8.5 7.5 6.9 5.9 4.6 3.8 4.0 | 6.0
Daily Avg Max 2-Min | 12.2 14.0 14.7 17.2 17.7 17.3 15.8 14.9 13.9 12.4 11.5 11.9 | 14.5
Daily Avg Peak Gust | 14.8 16.9 18.1 20.9 21.7 21.2 19.2 18.1 17.2 15.5 14.2 14.2 | 17.7
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Maximum Daily Avg | 16.4 15.3 19.3 17.3 18.8 15.6 12.6 15.9 12.8 17.1 14.8 17.3 | 19.3
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Maximum 2-Minute Avg| 38 36 32 36 32 32 28 25 28 35 30 35 | 38
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Date of Max 2min-Day| 07 03 27 03 28 10 10 30 20 29 24 31 |
-Year| 2005 1998 2007 1999 1998 2008 2008 1999 2005 2007 2001 2005 |
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Maximum Peak Gust | 46 43 44 41 39 40 43 33 33 40 37 41 | 46
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Date of Max Gust-Day| 07 03 19 14 21 10 10 30 02 29 24 25 |
-Year| 2005 1998 2008 2002 2008 2008 2008 2007 2003 2007 2001 2008 |
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Avg Number of Days: | |
Peak Gust >=30 | 0.9 1.9 1.9 3.0 1.4 1.1 0.3 0.2 0.5 0.6 0.4 1.0 | 13.2
Peak Gust >=40 | 0.2 0.3 0.3 0.2 0.0 0.1 0.1 0.0 0.0 0.1 0.0 0.2 | 1.3
Peak Gust >=50 | 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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Max 2-Minute >=30| 0.1 0.7 0.4 0.7 0.2 0.1 0.0 0.0 0.0 0.1 0.1 0.0 | 2.3
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.