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The events are arranged on the poster in the approximate order they appear each spring in Minnesota. You can also use this list as a rough guideline. Dates can vary widely due to storms, weather trends, cloudy vs. sunny days, and winter conditions proceeding the spring.
In Minnesota, spring generally moves north 15 miles a day, according to some folks. That would translate into about three weeks north to south. Of course, there will be much variation! Keep in mind that robins arrived in Carver County anywhere from February 28 – March 26! Help your students become aware of upcoming events about a week in advance when possible.
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Event
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Southern MN
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Northern MN
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| 1st migratory American Robin | first half March | first half April |
| Pussy Willows bloom | beginning March | beginning April |
| Ice Out | 1st half April | end of April |
| Painted Turtles basking | end of March | end of April |
| American Toads singing | end of April | mid- May |
| Dandelions bloom | mid April | mid May |
| Maple leaves out | 1st week of May | late May |
| Dandelions go to seed | late April | late May |
| 1st mosquito bite | April | May |
You can also refer to the Weatherguide calendar for more phenology events. Click here for more specific ideas for using the Weatherguide with students.