Record Cool August Occurres for portions of the Ozarks
Top 10 Coolest Summer Season at Vichy/Rolla
A rather cool weather pattern persisted for most of the 2009 summer season. With the exception of a 2 week period in June, most of the temperature readings this summer were cooler than you would expect. There have been several record lows set this summer along with some record cool daily high temperatures.
August was no exception as average monthly temperatures ran between 2 and 4 degrees below normal for locations across the Ozarks. Many locations experienced daily highs in the low 70's this month. While this made for a comfortable summer, it's not normal. To the contrary, it's rather chilly for this time of year. Meteorological summer runs from June through August, and Vichy/Rolla, Joplin and West Plains finished with top ten coolest August's and Vichy/Rolla finished the season with a top ten coolest summer.
Below are the Average Monthly Temperatures for August 2009 and where they stand compared to the top ten coolest Augusts on record.
| Rank | SGF | JLN | UNO | VIH | ||||
| 1 | 1915 | 68.7 | 1992 | 71.7 | 1967 | 71.8 | 2004 | 70.5 |
| 2 | 1950-1927 | 70.5 | 1950 | 71.9 | 1950 | 72 | 1950 | 71.1 |
| 3 | 1992 | 71 | 1967 | 73 | 2004 | 72.5 | 1992 | 71.5 |
| 4 | 1967 | 72.3 | 1966 | 73.9 | 1994 | 73 | 1967 | 72.2 |
| 5 | 1920 | 72.4 | 1974 | 74 | 1976 | 73.1 | 2009 | 73.2 |
| 6 | 2004 | 72.5 | 2004-1908 | 74.6 | 1986 | 73.8 | 1961 | 74.1 |
| 7 | 1917 | 72.8 | 1976-1964 | 75.2 | 1961-2009 | 73.9 | 1974 | 74.2 |
| 8 | 1889-1931 | 73 | 2009 | 75.6 | 1966 | 74.1 | 1966-1949-2008 | 74.3 |
| 9 | 1891 | 73.1 | 1986 |
75.7 |
1971 | 74.2 | 1965-1903 | 74.4 |
| 10 | 1890 | 73.6 | 1904 | 76.2 |
1964,2008 | 74.4 | 1981 | 74.5 |
| 11 | 1893-1986 | 73.7 | 1976-1982 | 74.6 | ||||
| 12 | 1997-2009 | 73.8 | ||||||
The overall trend during the summer season was on the cool side. This can be seen in the summer seasonal graph for Springfield below.
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This has been the trend for nearly all of the Ozarks. With the apparent continuation of this trend, temperatures are forecast to be cooler than normal into September.
The cool weather from the summer placed many location in the top 20 coolest summer seasons i.e.
Springfield - Tied for 17th Coolest
Joplin - Tied for 13th Coolest
West Plains - Tied for 14th Coolest
And one location in the top ten coolest summer seasons i.e.
Vichy/Rolla - The 5th coolest on record.