2007年10月 Saint Cloud 天气 Summary

Saint Cloud 2007年10月 天气 Summary  

2007年10月 in Saint Cloud, Minnesota finished the recovery from the dry conditions of the summer. The 2007年10月 rainfall at the Regional Airport totalled 4.14 inches, almost two inches above the normal rainfall of 2.24英寸. The bulk of the rain came in three episodes, primarily fueled by thunderstorms. The first was between the second and the eighth when St. 云拾取2.46 inches of rain, more than the normal amount for the entire month. A pair of slow moving storms dumped a total of 1.68 inches between the 15th and the 19th. This finished a six week period between September 6 and October 19 in which St. Cloud had about double the normal rainfall (8.下降了29英寸，而同期下降了4英寸.11英寸(正常). This was more rain than had fallen during the 3-month-plus period between June 4 and September 16 (6.85英寸). The growing season deficit which had grown to over 6 inches has been narrowed to a little more than 2 inches. More detail about the rainfall deficit can be found in the 2007年9月. 云天气摘要 在当地和 干旱情况报告 from the Minnesota State Climatology office. 此外， 美国干旱监测 from the National Drought Mitigation Center only shows one small area of drought remaining in Minnesota, still in the Park Rapids-Detroit Lakes-Wadena-Staples-Motley area

The cause of the heavy rain period was a series of slow moving storms that moved from the Southwestern US into the Plains states. With near summer heat and humidity continuing in the Southern Plains, there was always enough tropical moisture available to fuel outbreaks of thunderstorms. 然后, 每一场风暴都会加剧, then slow down in the Plains states, allowing Minnesota to experience multi-day thunderstorm outbreaks. 事实上, there were two good shots at significant rain each week during the wet period, in contrast to the dry summer weather that often produced rainless weeks.

In late October, however, the main steering wind pattern changed to a faster west-to-east flow. This new pattern kept the storm systems moving, kept tropical moisture confined to the Gulf Coast states, and produced frequent temperature shifts, 但是非常干燥的天气. St. Cloud has not received any measurable rainfall since October 19 and that dry weather will continue through the first week of November. The dry weather was responsible for keeping St. 云的降雨量为4.离其中一个14英寸远 最潮湿的十个十月 在圣. 云记录. The 2007年10月 rainfall total ranks as the 15th wettest out of 115 years and falls short of the October 2005 rainfall (4.80英寸，是圣. 云历史).

As rainy as September and October were 在圣. Cloud, we did miss out on a good deal of the rain. The Twin Cities set a record for the 八月至十月多雨 with just short of 19 inches of rain for the period. 在圣. Cloud, the last three months have dropped "only" 12.38 inches, the 15th highest total 在圣. 云记录. This amount was exceeded in both 2002 (15.78 inches; 4th highest) and 2005 (13.99 inches; 8th place). The highest August-October rainfall was 19.16英寸，设定在1929年.

Temperature-wise, it may have seemed like St. Cloud was in a major heat wave the first week of the month, then got quite cold for the rest of October. 然而, St. Cloud 2007年10月 daily statistics 这表明那不是真的. The October average temperature ended up at 50.9°F, 5.比正常温度高6°F. So, 2007年10月 also ranked as the 15th warmest October among the 127 years 在圣. 云记录. 2007年10月 was also the warmest October 在圣. 1973年以来的云.

The first week of October was incredible, averaging a high of 74.5华氏度，最低华氏52度.9&;F. This would have been normal weather for Memorial Day. 在这段时间里, four record high temperatures were on October 6 and 7, 包括6日85华氏度的高温.

After that first week, there were a series of cloudy days with the rain described above. 然而, St. Cloud 2007年10月 daily statistics show that there were only 5 days with below normal temperatures, all between October 9 and 14. After the rains let up, there were 6 days during which the high temperature topped 60 degrees. It took until October 22 to produce the first frost since our cool second week of September and it took until 10月28日 to have our first low below 28 degrees.

The outlook for early November shows the dry weather generally continuing. The milder than normal weather will continue through the upcoming weekend but we will end up in a much colder weather pattern with steering winds out of central Canada for the first half of next week. That will produce our first period of colder than normal weather since that cold second week of September.

    2007年10月统计数字