STATION: TUCSON INTERNATIONAL AIRPORT (KTUS), AZ
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 | 66.2 68.4 75.2 81.7 92.8 100.4 99.7 97.3 95.0 85.3 75.2 65.4 | 83.6
Avg Min Temp | 39.6 41.3 46.5 52.2 61.5 70.3 75.2 73.7 69.3 57.8 46.9 38.3 | 56.1
Avg Temperature | 52.9 54.9 60.9 66.9 77.1 85.4 87.5 85.5 82.2 71.5 61.1 51.9 | 69.8
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Extremes: | |
Extreme Max Temp| 87 86 95 99 109 111 111 110 107 100 93 86 | 111
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Date of Ext-Day | 24 23 16 27 22 21 02 10 14 09 06 24 |
-Year| 1999 2002 2007 2000 2005 2008 2001 2003 2000 1996 1999 2007 |
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Extreme Min Temp| 20 24 24 34 45 52 62 64 32 38 27 19 | 19
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Date of Ext-Day | 15 11 03 04 01 05 02 31 14 26 30 29 |
-Year| 2007 1999 2002 1999 1999 1999 2004 2000 2004 1996 2004 2003 |
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Heating Degree Days | 376 287 165 64 1 0 0 0 0 27 156 408 | 1485
Cooling Degree Days | 1 1 37 122 378 611 697 636 515 229 39 0 | 3265
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Avg Number of Days: | |
Max Temp >= 90 | 0.0 0.0 0.8 6.2 22.2 28.9 29.0 28.8 25.0 11.2 0.8 0.0 | 152.7
Max Temp >= 75 | 5.2 7.5 17.3 23.6 30.7 30.0 31.0 31.0 29.9 27.3 17.0 4.4 | 255.0
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
| |
Min Temp <= 32 | 4.4 2.0 0.6 0.0 0.0 0.0 0.0 0.0 0.1 0.0 1.0 6.5 | 14.6
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 0.2 | 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 | 27.8 26.4 27.4 27.5 29.9 37.2 56.1 60.1 51.6 38.3 29.8 26.7 | 36.6
Avg Wet Bulb Temp | 41.7 42.7 45.8 48.9 54.0 59.6 67.6 68.1 63.8 54.1 45.2 40.5 | 52.7
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Avg Sea Level Pres | 30.05 30.00 29.93 29.89 29.80 29.77 29.83 29.85 29.81 29.89 29.99 30.06 | 29.91
(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 | 0.2 0.2 0.7 0.2 1.2 2.1 7.9 10.8 3.2 1.5 0.2 0.1 | 28.3
Heavy Fog | 0.2 0.0 0.1 0.0 0.0 0.0 0.1 0.0 0.1 0.1 0.0 0.1 | 0.6
Fog | 3.1 1.8 1.8 1.3 0.1 0.2 2.2 2.2 1.3 1.7 1.4 2.7 | 19.7
Hail | 0.0 0.1 0.2 0.1 0.0 0.0 0.2 0.2 0.1 0.1 0.0 0.0 | 0.8
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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 | 0.49 0.73 0.59 0.39 0.14 0.27 2.62 2.02 1.10 0.78 0.41 0.62 | 10.15
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Maximum Daily | 0.60 0.94 0.82 1.17 0.44 0.58 1.90 2.29 1.72 1.61 1.00 0.64 | 2.29
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Date of Ext-Day | 22 15 29 01 27 19 31 23 03 26 12 23 |
-Year| 2004 2008 1998 1999 2005 2000 2006 2005 1996 1996 2003 2008 |
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Avg Number of Days: | |
>= 0.01 | 3.8 3.9 3.2 2.2 2.0 3.8 10.5 9.1 4.2 3.2 2.2 4.3 | 52.4
>= 0.10 | 1.6 2.1 1.8 0.8 0.7 0.9 5.4 4.8 2.2 1.6 1.1 1.5 | 24.5
>= 0.25 | 0.7 1.2 0.8 0.5 0.1 0.3 3.1 3.2 1.5 0.8 0.6 1.0 | 13.9
>= 0.50 | 0.3 0.4 0.3 0.2 0.0 0.1 1.5 1.2 0.6 0.4 0.2 0.3 | 5.5
>= 1.00 | 0.0 0.0 0.0 0.1 0.0 0.0 0.7 0.2 0.2 0.2 0.1 0.0 | 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| 6.6 7.0 7.5 8.0 7.8 7.8 7.4 7.0 7.3 7.3 6.8 6.5 | 7.3
Daily Avg Max 2-Min | 16.6 17.4 18.5 19.8 19.3 20.3 22.4 21.2 18.9 17.9 16.6 17.0 | 18.8
Daily Avg Peak Gust | 21.4 22.4 23.8 25.7 25.1 26.5 28.3 27.1 24.1 23.2 21.6 21.9 | 24.3
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Maximum Daily Avg | 22.5 18.5 20.9 17.2 17.4 15.5 13.4 22.4 17.3 22.9 20.2 19.1 | 22.9
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Maximum 2-Minute Avg| 36 37 40 39 35 48 55 48 44 38 35 36 | 55
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Date of Max 2min-Day| 07 03 31 06 21 03 02 13 10 09 05 23 |
-Year| 2008 1998 2004 2002 2008 2006 2001 2000 2002 2000 2007 2003 |
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Maximum Peak Gust | 46 48 46 46 45 56 60 60 52 53 53 47 | 60
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Date of Max Gust-Day| 02 24 31 21 21 03 02 27 10 13 12 13 |
-Year| 2008 1998 2004 2001 2008 2006 2001 1999 2002 1996 2004 2008 |
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Avg Number of Days: | |
Peak Gust >=30 | 4.0 4.1 5.4 8.5 7.0 7.6 10.8 10.2 5.8 5.9 3.9 5.1 | 78.3
Peak Gust >=40 | 0.3 0.3 0.9 1.0 0.4 1.1 3.1 2.7 1.1 0.9 0.4 0.4 | 12.6
Peak Gust >=50 | 0.0 0.0 0.0 0.0 0.0 0.3 0.6 0.6 0.1 0.1 0.1 0.0 | 1.7
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Max 2-Minute >=30| 1.0 0.9 1.5 1.9 0.9 1.8 4.9 3.8 2.0 1.3 0.6 0.0 | 20.7
Max 2-Minute >=40| 0.0 0.0 0.1 0.0 0.0 0.1 0.7 0.7 0.1 0.0 0.0 0.0 | 1.6
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Observations of WEATHER may me innacurate due to early ASOS inconsistancies. Average days
with Thunderstorms may be low due to poor 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.