STATION: LAS VEGAS MCCARRAN INTERNATIONAL AIRPORT (KLAS), N
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 | 58.4 61.6 71.1 77.3 89.9 99.2 104.6 102.5 93.9 80.5 67.0 56.7 | 80.2
Avg Min Temp | 39.3 42.3 48.9 55.1 65.8 74.7 80.7 79.2 70.7 58.2 46.5 38.3 | 58.3
Avg Temperature | 48.9 51.9 60.0 66.2 77.9 86.9 92.7 90.9 82.3 69.3 56.7 47.5 | 69.3
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Extremes: | |
Extreme Max Temp| 75 81 92 99 109 113 117 112 107 100 84 73 | 117
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Date of Ext-Day | 31 01 21 27 28 15 19 12 15 01 07 16 |
-Year| 2003 2003 2004 2000 2003 2000 2005 2002 2000 2000 2007 1998 |
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Extreme Min Temp| 23 25 31 38 45 49 37 66 54 37 30 20 | 20
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Date of Ext-Day | 31 01 03 02 14 03 16 31 19 29 30 22 |
-Year| 2002 2002 2002 1997 1998 2003 2004 2000 1996 1996 2004 1998 |
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Heating Degree Days | 500 369 188 80 6 1 0 0 0 43 255 544 | 1986
Cooling Degree Days | 0 0 32 116 400 659 857 801 518 178 7 0 | 3568
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Avg Number of Days: | |
Max Temp >= 90 | 0.0 0.0 0.4 2.7 17.2 26.6 30.5 30.6 22.8 5.0 0.0 0.0 | 135.8
Max Temp >= 75 | 0.1 0.7 12.5 19.1 28.9 29.9 31.0 31.0 30.0 23.0 5.5 0.0 | 211.6
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 | 3.6 1.2 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 5.0 | 10.2
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 | 25.2 26.0 26.5 27.6 31.5 34.9 45.6 46.8 40.0 32.9 27.9 23.5 | 32.4
Avg Wet Bulb Temp | 39.2 41.3 45.3 48.6 54.8 59.4 65.2 64.9 59.3 51.4 44.0 37.9 | 50.9
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Avg Sea Level Pres | 30.10 30.05 29.95 29.89 29.82 29.82 29.78 29.79 29.83 29.93 30.04 30.12 | 29.93
(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 0.6 0.3 0.2 0.2 0.8 3.7 3.5 1.5 0.8 0.2 0.2 | 12.2
Heavy Fog | 0.1 0.0 0.0 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.1 | 0.2
Fog | 2.0 3.5 1.0 0.9 0.0 0.1 0.7 0.3 0.6 1.1 1.3 1.0 | 12.5
Hail | 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.1 0.1 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 | 0.34 1.13 0.23 0.20 0.02 0.03 0.56 0.32 0.42 0.36 0.38 0.40 | 4.40
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Maximum Daily | 0.81 0.78 0.50 0.63 0.10 0.08 1.29 0.58 0.71 0.94 0.78 1.13 | 1.29
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Date of Ext-Day | 03 11 25 02 13 02 08 27 25 18 21 29 |
-Year| 2005 2005 1998 2004 1998 1999 1999 2007 1997 2005 2004 2004 |
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Avg Number of Days: | |
>= 0.01 | 2.2 4.9 2.2 1.8 0.6 0.5 2.7 2.6 1.9 1.9 1.7 2.2 | 25.2
>= 0.10 | 1.2 2.7 1.0 0.5 0.2 0.0 1.5 0.9 0.8 1.2 0.9 0.8 | 11.8
>= 0.25 | 0.4 1.6 0.2 0.3 0.0 0.0 0.8 0.4 0.8 0.5 0.5 0.6 | 6.1
>= 0.50 | 0.2 1.0 0.1 0.1 0.0 0.0 0.4 0.2 0.5 0.1 0.3 0.2 | 3.0
>= 1.00 | 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.1 | 0.2
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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| 6.6 7.2 8.2 9.9 9.5 9.5 8.3 7.9 7.4 6.9 5.9 6.2 | 7.8
Daily Avg Max 2-Min | 16.3 18.3 19.7 22.5 22.2 21.4 21.4 19.9 18.7 16.9 15.2 15.9 | 19.0
Daily Avg Peak Gust | 19.6 22.4 24.5 28.0 27.8 26.9 26.7 25.3 23.5 20.9 18.5 19.4 | 23.6
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Maximum Daily Avg | 21.7 21.4 24.2 23.2 29.1 26.2 20.9 19.9 24.9 22.3 21.5 24.3 | 29.1
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Maximum 2-Minute Avg| 44 53 46 44 56 47 45 43 41 46 40 48 | 56
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Date of Max 2min-Day| 21 13 31 03 10 16 19 30 08 25 26 24 |
-Year| 1999 2008 1999 1999 2000 1998 1998 1998 1998 1996 1997 2000 |
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Maximum Peak Gust | 52 67 56 59 64 60 54 61 49 62 49 55 | 67
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Date of Max Gust-Day| 21 13 20 15 24 04 19 07 08 20 24 24 |
-Year| 1999 2008 2000 2002 2000 2008 1998 1998 1998 2007 2001 2000 |
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Avg Number of Days: | |
Peak Gust >=30 | 6.9 7.5 8.9 12.8 11.4 10.2 9.9 7.4 7.4 5.8 5.1 6.8 | 100.0
Peak Gust >=40 | 1.3 1.9 2.3 3.1 3.6 1.6 1.5 1.2 0.8 1.0 0.9 2.2 | 21.2
Peak Gust >=50 | 0.1 0.3 0.7 0.2 0.5 0.2 0.2 0.3 0.0 0.2 0.0 0.3 | 2.9
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Max 2-Minute >=30| 2.7 3.3 3.8 5.5 5.6 2.8 3.1 2.3 2.2 1.7 1.9 0.0 | 34.8
Max 2-Minute >=40| 0.2 0.4 0.4 0.4 0.6 0.4 0.3 0.2 0.2 0.2 0.2 0.0 | 3.4
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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.