STATION: HONOLULU INTERNATIONAL AIRPORT (PHNL), HI
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 | 80.0 80.4 81.2 82.7 84.5 86.8 87.8 88.7 87.9 86.4 83.4 81.1 | 84.2
Avg Min Temp | 67.0 67.2 68.6 70.1 71.6 74.0 75.0 75.5 74.5 73.7 71.3 68.7 | 71.4
Avg Temperature | 73.5 73.8 74.9 76.4 78.1 80.4 81.4 82.1 81.2 80.1 77.4 74.9 | 77.8
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Extremes: | |
Extreme Max Temp| 87 87 88 88 90 90 92 96 93 92 89 87 | 96
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Date of Ext-Day | 15 19 20 18 05 05 29 04 02 08 01 27 |
-Year| 1998 2004 1998 2005 2005 1997 1997 2003 2005 2004 1996 2006 |
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Extreme Min Temp| 53 56 58 62 60 67 70 69 68 66 64 56 | 53
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Date of Ext-Day | 31 06 16 01 02 13 14 13 27 18 21 28 |
-Year| 1998 1998 2005 2002 2006 1999 1997 1997 1996 1999 1997 1996 |
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Heating Degree Days | 0 0 0 0 0 0 0 0 0 0 0 0 | 0
Cooling Degree Days | 263 249 307 343 405 462 509 530 486 467 371 307 | 4699
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Avg Number of Days: | |
Max Temp >= 90 | 0.0 0.0 0.0 0.0 0.6 0.8 5.1 9.4 4.4 1.9 0.0 0.0 | 22.1
Max Temp >= 75 | 30.7 27.9 30.8 29.9 31.0 30.0 31.0 31.0 30.0 31.0 29.9 30.9 | 364.2
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 | 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 <= 20 | 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 <= 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 | 64.0 62.3 63.7 63.4 65.0 65.7 66.9 67.2 68.0 67.6 66.9 64.9 | 65.5
Avg Wet Bulb Temp | 67.5 66.5 67.6 67.9 69.5 70.5 71.5 71.9 72.2 71.4 70.4 68.5 | 69.6
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Avg Sea Level Pres | 30.01 30.05 30.04 30.08 30.04 30.03 30.03 30.01 29.99 29.99 30.00 30.02 | 30.02
(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 | 0.8 0.6 0.8 0.2 0.0 0.1 0.1 0.2 0.1 0.6 0.5 0.8 | 4.6
Heavy Fog | 0.1 0.2 0.0 0.0 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.0 | 0.3
Fog | 6.1 4.3 6.2 4.3 2.8 2.8 3.2 2.5 3.7 4.4 5.0 3.8 | 49.0
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 | 2.71 1.54 2.57 0.46 0.71 0.30 0.35 0.50 0.50 1.19 3.71 2.27 | 16.81
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Maximum Daily | 3.76 5.43 2.94 0.46 1.03 0.99 0.42 1.71 0.33 1.86 4.51 3.35 | 5.43
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Date of Ext-Day | 02 27 30 04 15 05 20 31 06 19 05 11 |
-Year| 2004 2004 2006 2003 2004 2001 2008 1996 2004 1999 1996 2008 |
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Avg Number of Days: | |
>= 0.01 | 9.3 6.7 9.2 7.2 5.3 6.1 7.2 5.5 7.1 7.6 9.3 9.8 | 90.2
>= 0.10 | 4.1 2.2 3.2 1.6 1.4 0.5 0.8 1.2 2.2 2.5 3.6 3.8 | 26.9
>= 0.25 | 2.6 1.3 2.2 0.3 0.9 0.2 0.3 0.4 0.3 1.5 2.3 2.3 | 14.7
>= 0.50 | 1.3 0.6 1.8 0.0 0.5 0.1 0.0 0.2 0.0 0.8 1.7 1.1 | 8.0
>= 1.00 | 0.7 0.2 0.7 0.0 0.1 0.0 0.0 0.1 0.0 0.2 1.1 0.5 | 3.4
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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| 9.3 9.3 9.7 11.7 10.6 11.8 12.2 12.2 10.7 10.2 9.3 9.6 | 10.6
Daily Avg Max 2-Min | 18.1 18.5 19.1 21.5 19.3 21.0 21.2 21.0 20.2 19.0 18.1 18.7 | 19.6
Daily Avg Peak Gust | 22.4 23.1 23.8 26.4 24.0 26.3 26.8 26.4 25.1 23.7 22.7 23.2 | 24.5
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Maximum Daily Avg | 21.1 21.7 19.6 22.3 17.6 16.7 19.4 18.4 17.1 17.6 19.8 22.3 | 22.3
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Maximum 2-Minute Avg| 40 37 32 35 29 30 30 31 30 31 31 39 | 40
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Date of Max 2min-Day| 22 27 30 03 19 25 22 31 01 01 30 05 |
-Year| 2004 2004 1998 2000 1998 1999 1998 2001 2003 2007 1998 2007 |
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Maximum Peak Gust | 47 47 41 44 37 37 38 37 37 37 38 48 | 48
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Date of Max Gust-Day| 14 27 09 03 21 25 13 31 14 29 30 05 |
-Year| 2004 2004 2007 2000 1998 1999 2005 2001 2002 2001 1998 2007 |
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Avg Number of Days: | |
Peak Gust >=30 | 4.8 5.1 6.7 8.5 4.2 6.2 8.1 8.7 5.1 5.3 4.9 6.8 | 74.4
Peak Gust >=40 | 0.6 0.2 0.1 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 | 1.5
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| 1.3 0.4 0.4 0.6 0.0 0.1 0.2 0.2 0.1 0.1 0.2 0.0 | 3.4
Max 2-Minute >=40| 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 | 0.1
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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.