2019年3月圣克劳德天气摘要

Saint Cloud 天气 Summary for 2019年3月

Remarkable Half-Winter for Snow Continues

Snowy Start to March Produces Above 平均 降雪

Believe it or not, the winter of 2018-2019 has only been marked by true winter weather since the second half of January. Nearly all of the cold and most of the snow has come since January 15. 以三月为例， 两个shovelable snowfalls, including over 7 inches of snow 3月9日和10日, continued the amazing rate of snow accumulation. By the end of that storm, plow piles were 6 feet tall in town with much higher drifts. The snow depth was over 20 inches in much of Minnesota (see NWS NOHRSC三月十二日的积雪深度). 在两次风暴之间 an outbreak of arctic air that would be typical for January or February, but was record breaking coming the first week of March, produced a sub-zero high in St. Cloud on 3月3日 (the second latest of all time) and produced record cold temperatures on both 3月3日 and 4.

Below average cold continued through March 12 with 8 of the 12 days being at least 15 degrees colder than average.

Snow Now at 8th Highest for Cold Season, 3rd in Feb-April Snow

雪下得很大, especially for its concentration in the second half of the snow season.St. 云只有15个.1英寸 through January 15 (none in January at that point) and was more than 11英寸 behind for the season. 然而, the past three months has packed in the snow. 11.4 inches of March snowfall was only 3 inches above average, since the snow quit for a while after March 12. 然而，额外的8.3 inches that has fallen in April has pushed the 2018-2019 snowfall total to 68.5英寸， 排名第八. 云记录.

As has been the case in most of the recent years with heavy snow, the bulk of it has come from February 1 on. St. 云已经收到47.3 inches of snow from February 1 through April 15, the 3日最高 snowfall since February in St. 云记录s. 只有2012-2013年(57).8 of 78.5英寸)，1964-65年(其中St. Cloud's snowiest month of March 1965 with 51.7英寸)排名更高.

Temperatures Eased After Early Month Cold

然而, the weather pattern changed for most of the last 3 weeks of March. 下一场暴风雨全是雨.81英寸). The rain and above freezing temperatures knocked the snow cover down to less than half of what was on the ground. 和, 一种更多的西向东流动模式开始了, keeping what was left of the arctic air locked up in northwestern Canada and never letting it get any closer than northern Manitoba and Ontario. From March 12 on, every high but 2 days got beyond the freezing mark. 第一个50度的天(晚了14天)及60度昼(提前8天)于三月二十七日抵达. The snow cover finally disappeared officially on March 28, 结束了连续91天的涨势 (since December 27) with at least an inch of snow on the ground. That only ranks as 5 days more than average.

Colder Than 平均, But Not Record-Breaking Cold

Overall, March did finish with a below normal temperature. St的平均值. 云23岁.7度，5.比平均水平低7度. This didn't directly overlap the winter, 但是从一月到三月, 今年冬天最冷的三个月, 平均15.9 degrees, but that is merely the 45 coldest of the 138 January through Marches on record.

When this winter was cold, it produced more cold weather markers than average. 有5天 when the temperatures stayed at zero or colder all day, including 3月3日, the second latest occurrence in St. 云计算的历史. 最近的一次是 1948年3月1日. 已经有7天了 零下20度或更低; 5人以上.平均4天. 然而, 3月3日 and 4 fell just short of that with lows of -18 and -19, although the -19 on 3月4日 was enough to 创历史新低. 2018 - 2019年 十年来的第一个冬天 零下30度或更低. 2018-2019年的寒冷季节 produced 49 days with a low of zero or colder，比平均水平多7分.

Still, none of these extremes rivaled the mark of the 上一次非常寒冷的冬天是在2013-2014年. 事实上, this winter seems extremely cold merely since it has come on the heels of so many milder than average winters (记录中最温和的14次中有7次 自1997 - 1998年)

高降雪量结果? 春天的洪水

All of this snow has created a major problem in snowmelt flooding. The Minnesota and Mississippi Rivers have already seen high flood waters with records set on the Upper Minnesota River. There has also been record flooding along the Missouri River and its tributaries from eastern South Dakota across eastern Nebraska, 爱荷华州西南部和密苏里州. 和, the crest of it has yet to be seen in the Red River of the North. Fargo and points downstream were already having a major flood before the April snow began to melt. This may end up producing the second highest crest to the 1996-1997 flood, which put Grand Forks under water for a month.

而洪水并没有那么严重, the Sauk River rose suddenly due to ice jams, flooding patrons at Anton's Restaurant for a night.