STATION: OMAK AIRPORT (KOMK), WA
CLIMATOLOGICAL SUMMARY. Period of Record: Feb 1998 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 | 32.4 40.8 52.8 62.9 71.5 79.0 90.3 88.8 78.3 61.4 43.5 32.1 | 61.1
Avg Min Temp | 22.0 24.0 29.3 34.5 42.2 49.1 56.6 55.2 46.1 35.0 27.9 21.6 | 37.0
Avg Temperature | 27.2 32.4 41.0 48.7 56.9 64.1 73.4 72.0 62.2 48.2 35.7 26.9 | 49.1
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Extremes: | |
Extreme Max Temp| 52 74 75 83 96 103 109 106 99 85 61 56 | 109
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Date of Ext-Day | 10 28 30 30 23 30 08 04 01 02 12 04 |
-Year| 2006 2008 2003 1998 2001 2008 2001 1998 1998 2003 1999 2007 |
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Extreme Min Temp| -10 4 12 19 22 31 38 38 22 5 -5 -5 | -10
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Date of Ext-Day | 24 02 02 24 01 09 03 31 23 31 30 26 |
-Year| 2008 2008 2007 2002 2008 1999 1999 2006 2000 2002 2006 2008 |
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Heating Degree Days | 1171 921 743 489 265 94 13 15 137 521 878 1182 | 6430
Cooling Degree Days | 0 0 0 0 13 66 273 232 53 1 0 0 | 639
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Avg Number of Days: | |
Max Temp >= 90 | 0.0 0.0 0.0 0.0 1.0 4.4 17.2 15.7 3.0 0.0 0.0 0.0 | 41.2
Max Temp >= 75 | 0.0 0.0 0.1 2.2 10.4 21.4 30.3 29.3 19.8 1.7 0.0 0.0 | 115.2
Max Temp <= 32 | 12.7 2.2 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.5 14.9 | 32.7
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Min Temp <= 32 | 28.6 24.9 21.5 12.4 3.2 0.1 0.0 0.0 1.2 12.8 20.8 28.9 | 154.3
Min Temp <= 20 | 11.5 8.9 2.2 0.2 0.0 0.0 0.0 0.0 0.0 1.2 5.7 11.4 | 41.0
Min Temp <= 0 | 1.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.7 | 2.5
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Avg Dew Point Temp | 23.8 25.3 28.5 31.7 38.5 44.0 45.1 43.7 39.4 34.4 30.0 23.7 | 34.0
Avg Wet Bulb Temp | 26.3 29.7 36.0 41.7 47.8 53.6 58.1 56.4 50.7 42.0 33.6 26.2 | 41.8
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Avg Sea Level Pres | 30.18 30.14 30.05 30.00 29.96 29.93 29.90 29.91 29.97 30.09 30.17 30.22 | 30.04
(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 0.0 0.0 0.5 2.1 1.8 1.5 1.2 0.6 0.1 0.2 0.0 | 8.0
Heavy Fog | 7.3 4.1 1.3 0.0 0.1 0.1 0.0 0.0 0.0 0.5 2.6 6.2 | 22.1
Fog | 21.2 11.8 6.4 2.4 3.6 3.0 1.0 0.9 1.1 4.6 13.5 19.9 | 89.4
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 | 1.30 0.85 0.74 0.57 0.97 0.94 0.26 0.28 0.27 0.66 1.06 2.06 | 9.95
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Maximum Daily | 0.84 0.64 0.56 0.83 1.03 1.42 0.65 0.41 0.71 0.72 0.67 1.08 | 1.42
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Date of Ext-Day | 05 28 09 24 17 05 18 30 30 03 28 14 |
-Year| 2008 2006 1999 2003 2004 2007 2007 1999 2007 2005 2001 2002 |
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Avg Number of Days: | |
>= 0.01 | 10.6 7.7 6.9 5.3 6.7 6.1 2.7 2.6 3.4 4.2 8.4 11.9 | 76.6
>= 0.10 | 3.8 2.6 2.5 1.8 2.7 2.3 0.6 1.0 0.6 1.8 3.4 6.5 | 29.6
>= 0.25 | 2.2 1.0 1.0 0.5 1.3 1.2 0.3 0.4 0.2 0.9 1.6 3.1 | 13.7
>= 0.50 | 0.4 0.2 0.2 0.3 0.5 0.6 0.1 0.0 0.1 0.3 0.2 0.6 | 3.4
>= 1.00 | 0.0 0.0 0.0 0.0 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.1 | 0.3
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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| 4.9 5.5 7.0 7.5 7.5 7.6 8.0 7.9 7.7 6.7 5.2 4.5 | 6.7
Daily Avg Max 2-Min | 12.7 13.7 17.1 18.2 18.5 17.8 17.9 17.6 17.2 15.7 13.1 12.2 | 16.0
Daily Avg Peak Gust | 15.2 16.7 21.2 22.8 23.0 22.8 22.7 22.3 21.3 19.2 15.9 14.8 | 19.8
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Maximum Daily Avg | 20.3 21.3 19.5 17.1 13.7 14.9 16.2 16.3 15.2 16.6 19.6 18.9 | 21.3
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Maximum 2-Minute Avg| 33 31 35 33 44 35 46 44 36 38 36 38 | 46
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Date of Max 2min-Day| 07 15 18 14 23 21 10 16 01 28 28 17 |
-Year| 2007 2001 2004 2002 2001 2008 2008 2002 2004 2003 2006 1998 |
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Maximum Peak Gust | 40 52 43 41 53 53 59 55 43 51 45 47 | 59
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Date of Max Gust-Day| 07 08 18 30 23 21 10 16 01 28 28 17 |
-Year| 2007 2008 2004 2001 2001 2008 2008 2002 2004 2003 2006 1998 |
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Avg Number of Days: | |
Peak Gust >=30 | 1.6 2.1 3.8 3.9 3.9 3.5 3.1 3.6 2.7 2.4 1.3 1.6 | 33.6
Peak Gust >=40 | 0.1 0.1 0.5 0.2 0.1 0.2 0.2 0.5 0.2 0.2 0.3 0.2 | 2.6
Peak Gust >=50 | 0.0 0.1 0.0 0.0 0.1 0.1 0.1 0.1 0.0 0.1 0.0 0.0 | 0.6
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Max 2-Minute >=30| 0.2 0.4 1.0 0.8 0.4 0.4 0.4 0.5 0.5 0.3 0.4 0.0 | 5.1
Max 2-Minute >=40| 0.0 0.0 0.0 0.0 0.1 0.0 0.1 0.1 0.0 0.0 0.0 0.0 | 0.3
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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.