2012年10月 Saint 云 天气 Summary

Saint 云 2012年10月 天气 Summary  

的 generally dry conditions that have plagued Minnesota since early summer continued 2012年10月. According to the rainfall statistics from the Saint 云 Regional Airport, only 0.73 inch fell during 10月ober. That was about double the amount needed to crack one of the 10个最干燥的十月; 但我还是.76 inches less than average. Combine that total with the extremely dry 9月ember (0.24英寸, 2nd driest on record) and the rainfall deficit has swollen nearly 5 inches in the past two months.

During the 6月-10月ober period, St. 现在是云 9.08 inches behind on rainfall. 8.14英寸是 lowest five-month 6月-10月 rainfall 在圣. 云 precipitation records, which date back to 1893. 的 previous record for low 6月-10月ober rainfall was 9.06英寸，设定在1950年. Note that this is much drier than the dry seasons St. 云 has had in the past four growing seasons as well as drier than any single year during the last major drought in 1986-1989.

的 weekly State Climatology Report on the late summer and fall drought shows that a strip of central Minnesota from Lac qui Parles through Benson, 丰益, 阿特沃特, Paynesville, St. 云, Big Lake and Elk River are running 8-10 inches below normal in rainfall since the third week of 6月. Because of the low amount of rainfall, the streamflow in the Mississippi River 在圣. 现在是云 among the lowest 5% of measurements. 88% of the subsoil moisture is rated as being very short or short on the 10月3日1 Minnesota Crop 天气 Bulletin. And, that strip of central Minnesota noted above is now rated as being in 极端干旱, along with parts of northwest, west central, southwest, and south central Minnesota on the latest 美国干旱监测.

的 dry weather culminated with 26 straight days without measurable rainfall between 9月ember 22 and 10月ober 17. However, many other dry seasons have had similar streaks. In 2010, there were 27 straight dry days between 9月ember 26 and 10月ober 22. In 2011, there were 26 straight dry days (10月 24-11月 18). 在圣. 云 precipitation records there have been streaks more than twice as long, including a 57-day dry streak between 11月ember 29, 1898, 1月24日, 1899.

的re was a little relief from the dry conditions on 10月23日-25. During that time, a total of .56英寸下降， .25号42英寸. 相比之下，St。. 云 had only received .49 inch of rain in the nearly two months from 8月ust 23 through 10月ober 22.

A little bit of the 10月25日 precipitation fell as wet snow 在圣. 云. 0.3 inches accumulated for the month, 0.4 inches less than average. 但是要注意, from the monthly snowfall accumulations that 10月obers have many years with little snowfall and a handful of years with some. 最近的一次是2次.2009年是5英寸，6英寸.4 inches in 2002 (most in 10月ober), 0.2001年是5英寸.1997年是3英寸，6英寸.1995年是0英寸. In comparison, 10月ober 2001 had 3.1 inches since the bulk of the Halloween blizzard snow fell on 11月ember 1.

的 平均十月一日. 云的温度 是44.4度，1度.4 degrees cooler than average. 这是 first month with a below average temperature 2011年5月至今. St. 云 had 14 consecutive months with above average temperatures from 6月 2011 through 7月 2012. 的 last month before 10月ober with an average temperature at least a degree below average? 2011年3月.

如果圣. 云 were to have an average temperature in both 11月ember and 12月ember, 2012 would end up as the second warmest year 在圣. 云记录 with an average temperature of 46.7度. 的 only year that was hotter than that was 1931 with an average temperature of 47.9度.

    2012年10月 Statistics