STATION: MOSES LAKE GRANT COUNTY INTL AIRPORT (KMWH), WA
CLIMATOLOGICAL SUMMARY. Period of Record: Jul 1997 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 | 36.8 44.8 55.4 63.4 72.7 80.4 90.2 88.2 78.5 62.9 46.9 36.2 | 63.0
Avg Min Temp | 24.1 27.6 32.1 36.2 45.0 51.6 57.8 56.0 47.0 36.7 29.4 24.2 | 39.0
Avg Temperature | 30.5 36.2 43.7 49.8 58.8 66.0 74.0 72.1 62.7 49.8 38.1 30.2 | 51.0
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Extremes: | |
Extreme Max Temp| 58 63 75 89 97 103 108 106 100 86 69 68 | 108
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Date of Ext-Day | 03 27 20 30 23 29 13 04 02 04 06 28 |
-Year| 1999 2005 1999 1998 2001 2008 2002 1998 1998 2003 2006 1998 |
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Extreme Min Temp| -17 4 19 22 27 37 42 42 27 5 -1 -4 | -17
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Date of Ext-Day | 05 18 08 04 08 09 03 31 23 31 29 20 |
-Year| 2004 2006 2002 2003 2002 1999 1999 2006 2000 2002 2006 2008 |
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Heating Degree Days | 1070 814 659 456 217 61 6 8 113 473 804 1078 | 5760
Cooling Degree Days | 0 0 0 1 26 90 286 229 46 1 0 0 | 677
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Avg Number of Days: | |
Max Temp >= 90 | 0.0 0.0 0.0 0.0 1.6 4.9 17.2 13.9 2.8 0.0 0.0 0.0 | 40.4
Max Temp >= 75 | 0.0 0.0 0.1 2.4 12.1 22.6 30.6 29.6 20.2 1.9 0.0 0.0 | 119.5
Max Temp <= 32 | 9.2 0.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.7 9.7 | 21.4
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Min Temp <= 32 | 27.2 22.8 18.1 7.6 1.4 0.0 0.0 0.0 0.3 9.8 18.8 26.7 | 132.7
Min Temp <= 20 | 8.2 2.8 0.5 0.0 0.0 0.0 0.0 0.0 0.0 0.8 4.4 8.9 | 25.5
Min Temp <= 0 | 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.3 | 1.4
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Avg Dew Point Temp | 26.3 28.8 31.1 33.2 39.0 44.4 48.0 47.9 41.8 35.4 31.7 26.3 | 36.2
Avg Wet Bulb Temp | 28.9 33.0 38.2 42.7 49.3 54.9 59.8 58.8 51.9 43.0 35.3 28.9 | 43.7
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Avg Sea Level Pres | 30.15 30.13 30.08 30.01 29.97 29.93 29.91 29.92 29.96 30.09 30.16 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 | 0.1 0.0 0.7 0.3 0.7 0.8 0.8 0.8 0.2 0.0 0.0 0.1 | 4.5
Heavy Fog | 8.8 3.2 1.6 0.0 0.0 0.0 0.0 0.1 0.2 0.6 4.3 6.6 | 25.3
Fog | 18.8 10.5 5.3 2.6 2.6 2.1 0.6 0.8 1.1 5.5 12.5 17.0 | 79.5
Hail | 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
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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 | 1.05 0.63 0.57 0.61 0.61 0.63 0.17 0.19 0.21 0.48 0.87 1.10 | 7.12
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Maximum Daily | 0.59 0.44 0.43 1.10 0.85 0.52 0.60 0.37 0.43 0.65 0.66 0.55 | 1.10
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Date of Ext-Day | 23 28 27 13 09 05 31 24 04 17 05 30 |
-Year| 2003 2006 2007 2000 2005 2005 1998 2004 2000 2004 1998 2002 |
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Avg Number of Days: | |
>= 0.01 | 10.7 7.0 5.8 5.8 6.4 4.3 1.8 2.3 2.4 6.0 9.6 10.8 | 72.9
>= 0.10 | 4.0 2.3 2.1 1.7 2.0 2.0 0.6 0.6 0.8 1.5 3.1 4.2 | 24.8
>= 0.25 | 1.3 0.8 0.5 0.5 0.6 1.1 0.1 0.2 0.2 0.5 0.7 0.9 | 7.3
>= 0.50 | 0.1 0.0 0.0 0.3 0.1 0.1 0.1 0.0 0.0 0.1 0.1 0.2 | 1.0
>= 1.00 | 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 | 0.1
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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| 6.3 6.9 8.0 8.0 8.3 8.4 7.6 7.0 6.8 6.8 6.3 5.9 | 7.2
Daily Avg Max 2-Min | 14.4 15.3 18.6 18.5 19.4 19.1 17.1 16.4 15.8 15.7 14.4 14.0 | 16.5
Daily Avg Peak Gust | 17.0 18.3 22.5 22.8 23.9 23.6 21.3 20.0 19.3 19.1 17.2 16.6 | 20.1
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Maximum Daily Avg | 20.6 20.6 21.1 19.1 17.6 17.1 16.1 17.3 21.1 19.5 20.8 20.5 | 21.1
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Maximum 2-Minute Avg| 44 41 54 46 40 36 37 41 37 41 44 43 | 54
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Date of Max 2min-Day| 09 02 05 27 28 13 10 26 25 28 16 15 |
-Year| 2000 1999 2004 2004 2001 2003 1998 1997 1998 2003 2002 2006 |
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Maximum Peak Gust | 52 49 60 53 49 49 47 45 45 52 53 49 | 60
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Date of Max Gust-Day| 09 02 05 27 01 01 10 26 25 28 16 15 |
-Year| 2000 1999 2004 2004 2006 2001 1998 1997 1998 2003 2002 2006 |
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Avg Number of Days: | |
Peak Gust >=30 | 2.6 3.4 5.6 5.7 6.2 5.7 2.7 2.1 2.7 3.7 2.5 2.8 | 45.6
Peak Gust >=40 | 0.5 0.5 0.9 1.0 0.6 0.4 0.2 0.6 0.3 0.7 0.3 0.3 | 6.4
Peak Gust >=50 | 0.1 0.0 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.0 | 0.4
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Max 2-Minute >=30| 1.0 1.3 3.1 1.6 2.4 1.5 0.6 0.9 0.9 1.2 0.6 0.0 | 15.0
Max 2-Minute >=40| 0.1 0.1 0.2 0.3 0.1 0.0 0.0 0.1 0.0 0.2 0.1 0.0 | 1.1
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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.