STATION: YAKIMA AIR TERMINAL/MCALSR FIELD AP (KYKM), WA
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 | 38.7 47.1 56.2 63.4 72.6 79.8 89.5 87.3 78.2 63.5 48.1 37.0 | 63.5
Avg Min Temp | 23.6 26.4 30.0 33.9 42.6 48.5 54.4 52.4 43.7 34.1 26.9 22.6 | 36.6
Avg Temperature | 31.2 36.8 43.1 48.6 57.6 64.2 72.0 69.8 60.9 48.8 37.5 29.8 | 50.0
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Extremes: | |
Extreme Max Temp| 60 67 78 87 98 102 109 104 98 85 72 62 | 109
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Date of Ext-Day | 14 22 30 30 23 30 23 04 02 02 13 16 |
-Year| 1999 2002 2003 1998 2001 2008 2006 1998 1998 2003 1999 1999 |
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Extreme Min Temp| -14 5 15 18 25 32 36 37 25 4 4 -7 | -14
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Date of Ext-Day | 04 18 08 19 08 06 03 31 23 31 02 28 |
-Year| 2004 2006 2002 2008 1999 1999 1999 1999 2000 2002 2002 1996 |
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Heating Degree Days | 1049 798 679 491 250 94 17 22 153 503 824 1092 | 5972
Cooling Degree Days | 0 0 0 0 21 70 232 173 32 0 0 0 | 527
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Avg Number of Days: | |
Max Temp >= 90 | 0.0 0.0 0.0 0.0 1.6 4.4 16.7 12.9 2.3 0.0 0.0 0.0 | 37.9
Max Temp >= 75 | 0.0 0.0 0.1 2.9 11.7 22.0 29.9 29.4 20.0 2.3 0.0 0.0 | 118.3
Max Temp <= 32 | 6.9 0.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.9 8.9 | 18.3
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Min Temp <= 32 | 28.2 24.7 22.1 13.4 3.1 0.2 0.0 0.0 1.2 13.3 23.3 28.5 | 157.9
Min Temp <= 20 | 9.4 4.8 1.3 0.4 0.0 0.0 0.0 0.0 0.0 0.9 6.0 10.3 | 33.1
Min Temp <= 0 | 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.8 | 1.3
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Avg Dew Point Temp | 26.1 27.6 30.0 32.4 38.7 42.9 47.5 47.7 42.1 34.8 30.1 25.3 | 35.4
Avg Wet Bulb Temp | 29.3 32.9 37.9 42.1 49.0 53.6 58.9 57.8 51.0 41.9 34.4 28.2 | 43.1
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Avg Sea Level Pres | 30.16 30.15 30.07 30.01 29.98 29.94 29.93 29.93 29.97 30.08 30.16 30.21 | 30.05
(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 0.2 1.0 0.6 0.8 0.6 0.2 0.2 0.0 0.0 | 3.6
Heavy Fog | 6.0 1.8 0.4 0.1 0.1 0.0 0.0 0.0 0.1 0.5 2.8 6.1 | 17.9
Fog | 22.8 13.2 5.9 3.0 1.8 1.1 0.5 0.9 1.2 7.1 16.0 20.3 | 93.7
Hail | 0.0 0.0 0.2 0.1 0.0 0.0 0.1 0.0 0.0 0.0 0.1 0.1 | 0.5
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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 | 1.11 0.78 0.45 0.48 0.51 0.41 0.21 0.24 0.20 0.48 1.05 1.69 | 7.60
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Maximum Daily | 0.57 0.79 0.44 0.64 0.49 0.61 0.47 0.51 0.51 0.74 1.70 1.38 | 1.70
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Date of Ext-Day | 16 07 23 26 19 27 03 22 15 30 19 31 |
-Year| 1998 2002 1998 2003 2002 2001 1998 2004 2006 1997 1996 1996 |
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Avg Number of Days: | |
>= 0.01 | 9.9 8.0 5.2 6.0 6.4 4.2 1.8 2.5 2.6 5.0 8.2 11.2 | 71.0
>= 0.10 | 4.7 2.6 1.8 1.1 2.1 1.3 0.5 0.9 0.5 1.4 2.6 5.2 | 24.7
>= 0.25 | 1.1 1.0 0.3 0.5 0.3 0.6 0.3 0.2 0.2 0.5 1.4 2.2 | 8.7
>= 0.50 | 0.2 0.2 0.0 0.1 0.0 0.1 0.0 0.1 0.1 0.2 0.4 0.5 | 1.7
>= 1.00 | 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.2 | 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| 4.1 5.3 6.6 7.0 7.1 7.3 6.7 6.4 6.1 5.4 4.5 3.7 | 5.9
Daily Avg Max 2-Min | 13.2 14.9 18.6 18.8 18.9 18.9 17.5 16.5 15.5 15.6 13.7 12.7 | 16.3
Daily Avg Peak Gust | 15.8 18.0 22.6 23.1 23.0 23.6 21.5 20.5 19.1 18.9 16.6 15.3 | 19.8
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Maximum Daily Avg | 16.0 20.5 15.8 16.6 15.6 18.2 18.4 13.6 16.5 14.8 16.9 15.9 | 20.5
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Maximum 2-Minute Avg| 66 58 37 68 71 66 51 45 35 76 66 55 | 76
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Date of Max 2min-Day| 08 15 16 04 27 25 30 05 08 12 17 09 |
-Year| 2008 2008 2005 2008 2008 2008 2008 2003 2000 2008 2007 2008 |
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Maximum Peak Gust | 78 71 48 78 82 86 81 68 43 79 90 77 | 90
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Date of Max Gust-Day| 08 15 16 04 27 21 30 12 25 12 17 09 |
-Year| 2008 2008 2005 2008 2008 2008 2008 2007 1999 2008 2007 2008 |
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Avg Number of Days: | |
Peak Gust >=30 | 3.8 4.1 7.6 6.3 6.3 6.3 2.9 2.6 2.8 4.6 3.9 3.7 | 54.9
Peak Gust >=40 | 1.0 1.3 0.8 1.0 0.3 0.9 0.2 0.3 0.2 1.1 0.6 1.2 | 8.8
Peak Gust >=50 | 0.3 0.3 0.0 0.2 0.1 0.3 0.1 0.2 0.0 0.2 0.1 0.5 | 2.1
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Max 2-Minute >=30| 1.9 1.8 2.4 1.8 1.1 1.5 0.5 0.4 0.4 1.5 1.2 0.0 | 14.5
Max 2-Minute >=40| 0.2 0.1 0.0 0.3 0.1 0.3 0.1 0.2 0.0 0.3 0.1 0.0 | 1.5
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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.