2021年3月 Saint Cloud 天气 Summary

Winter 天气 Leaves Minnesota Quickly

2021年3月1日. 云，MN天气摘要

后 一个二月的寒冷足够强烈 to threaten one of the 10 coldest Februaries up until the last week of the month, St. Cloud got back on the temperature roller coaster that dominated December (6.比平均水平高0度)及一月(8.比平均水平高0度). 3月1日以后, the high temperature was only colder than 40 degrees on 2 days 和 low temperatures only dropped below 20 degrees twice. 温度 alternated between streaks in the 40's, which were 5-1比平均水平高0度, 还有六七十年代的裸奔, which were more than 20 degrees warmer than average. 最终结果是a 2021年3月 average temperature of 36.9度, 7.比平均温度低5度. 这就变成了 最温和的三月七日 在圣. 云温记录.

This included a first day of 60-degree highs on 3月9日, 平均5天内, 和 first day of 70-degree highs on 3月29日, 20 days earlier than average (see below).

Despite a 3月1日 snowfall that brought the snow pack to 8 inches, the following warmth rid the ground of snow cover by 3月7日, the first day in 74 days without a snow cover. While there were a pair of wet snowstorms on 3月1日1 和 3月13日, 雪很快就融化了。, allowing the sun's heat to warm the ground. 3月9日，这种温暖产生了一种 创纪录的热天 with a high of 61 (tying the record), a low of 42 (breaking the old record of 35, 以1911年为背景) 和 an average temperature of 52 (breaking the old record of 48, 以1911年为背景).

The snow events did produce a total of 7.三月份新下了1英寸的雪. That brought the 2020-2021 snowfall to 44.2英寸，1.比平均水平高出2英寸. There have been 95 days so far this cold season with snow cover, 73 of them in a row between December 24 和 March 6. Those are still slightly below average 和 certainly less than during 三个大雪季节 during the 2010's: 2012-2013, 2013-2014 和 2018-2019. 然而, the odd part of the snow season so far is that the two heaviest snowfalls of the season were before the usual persistent snow cover. 有 7.10月20日为0英寸 和 7.11月10日2英寸. Both of these snowfalls were so early that they completely melted within a week.

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So, the overall November through March period has averaged nearly five degrees warmer than average. It is the 14th mildest November through March in St. 云记录.

仍然, the intense cold of February 和 another colder than average period in January were quite intense. Despite the well above normal average temperatures, St. Cloud ended up with 8 days that never got above zero, nearly 4 days more than average. 5 of these days were in a row, the longest streak since the record-setting cold of 1996. 有 5 days with a low of -20 or colder, which is also about average. There was a streak of 13 days with a low of zero or colder, the longest streak since 1999. 然而, 寒冷没有持续太久, so there were only 24 total days with a low of zero or colder, 在42岁以下.平均7天.

With the snow gone, the biggest weather-related problem was the dried out surface vegetation. 这被a加重了 low snow year in western Minnesota (set map to seasonal total) 和 a dry end of 2020. Much of the soil was listed as dry, except those areas that picked up some of the heaviest precipitation during the month. St. Cloud picked up substantial rain 和 snow with 0.77英寸 3月- 11 更重要的是降雨，0.3月23-24日78英寸. 0.72英寸3月10日设置 日降水量记录. Much of the state is in needed of rainfall, as listed by the US Drought Monitor (with precipitation data through 3月30日星期一).

The reason for the frequently warm 和 mostly dry March was the reappearance of a splitting of the steering winds over North America. The northern branch mainly persisted through Canada, locking the really cold air to the northern third of Canada. 后 the first, it only got loose during the 3月15日和16日是寒冷的两天, when highs were limited to the 30's. 除了3月9日至10日的风暴, the active storm track from the Southwestern US to the Mid-Atlantic states 和 Northeast kept the serious precipitation well to our south. Only south central 和 eastern Minnesota got over 3 inches of precipitation, thanks to the heavier precipitation on 3月9日 和 10. 这也意味着 纳什维尔发生洪灾 和 tornado outbreaks across the Interior Southeast, especially in Alabama, remained well to our south.

Minnesota was touched by severe weather on 3月10日, with 一些大冰雹 在明尼苏达州南部.