2022年11月 Saint 云 天气 Summary

What would you think that November would have averaged, given this 温度图 (礼貌MesoWest)? There were major warm periods early in the month, 与劳动节的平均天气相似, 九月九日复发, then a prolonged colder period with temperatures approach January levels on the 19th 和 20th 和 late in the month. Well, that overall average temperature ended up at 31.8度，0.比平均水平高8度.

The wild swings in temperature were caused by wild swings of main belt of steering winds. Some of the month involved two separate storm tracks, one in southern Canada 和 one often from the Pacific Northwest into the South Central states then through the east. 气候温和的时期有这种模式, since the cold air was blocked in Canada 和 the moisture was shunted off by the southern track. 那段时期包括了 11月2日高点 75度, which was one degree off the high temperature for the entire month of November (76 degrees, 定于11月6日, 2020). At other times, there was a storm that linked the two storm tracks. That was the case in the middle of the month, which produced more than average precipitation in much of eastern 和 northeastern Minnesota. And, other times, the northwest-to-southeast flow from north central Canada dominated.

That 75 degree high is likely the last 70-degree high of the season. The average date for the last 70 high is mid-October, but two of the past 6 years have had a November 70 degree high (November 5, 2016; November 8, 2020).

The near average November temperature resulted in a Fall (1 September-30 November) average of 47.4度，2度.比平均水平高0度. Of the 134 years on record, this fall ranks as the 30th warmest.

The heavy precipitation storm in the middle of the month ended up producing well above average precipitation in the middle of the month. 圣. 云市机场接机2台.11 inches, making it the 24th wettest of the 130 Novembers on record. 1.其中64英寸落在 11月8 - 10，高于平均水平 整月(1).37英寸). 还有 风暴带来的大风和恶劣天气, as well as ice changing to snow in northwestern Minnesota.

另一方面, a series of fast moving storms in colder air from 11月14日 through 18 squeezed out a total of 4.5天4英寸. Other places got some more snow, but no one made out like northeastern Minnesota. There the persistent southeast winds coming off Lake Superior during the series of storms, plus the extra lift as those winds climbed the North Shore 11月14日至18日的内陆丘陵, dumped more than a foot of snow with over 30 inches near Hovl和. There was more precipitation over parts of the Twin Cities, which was hit by 月底的一层窄窄的雪.

所以,圣. 云 was on the southwest fringe of the heaviest November precipitation, posting the above average precipitation (see NWS明尼苏达州11月降水图). Still, much of Minnesota remains below average on precipitation (see 明尼苏达州的部门. of Natural Resources precipitation seasonal departure map中心). Even with the late November snowfall in the eastern half of the driest area, there is much more precipitation needed to make up the large deficits (see 美国干旱监测). And, with colder weather coming frequently, we are close to having frost going into the ground. 霜冻已经发展到 Ottertail 和 卡斯湖. That means future precipitation may eventually help river 和 lake levels, 但不是地下水位.

St. 云 is still on track to end up considerably above average on annual precipitation with 30.53英寸，3英寸.比平均水平高62英寸. In fall (1 September-30 November) precipitation, St. 云上升了4.65英寸，2英寸.比平均水平低34英寸.

5.0 inches of snow in November was a bit below the 6.平均9英寸.

With the turn to December, what does meteorological (December 1-February 28) mean? While we don't know how warm or cold we will be (the long-range forecasts are going 低于平均温度, 但我不太相信这些), the characteristic of a central Minnesota winter that stays with me is the nearly three months (median: 86 consecutive days) during which St. 云上至少有一英寸厚的积雪. 去年, it was a bit higher (92 days between December 17 和 March 19), despite our lack of a major snowstorm (haven't seen at least 5英寸es in one storm since 11月10日, 2020年)尽管下雪 within a couple of inches of average during the past two seasons. We average 42 days a season with a low temperature of zero or colder (上赛季52分, but less than 30 the previous two seasons).