A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Mid-South, and East Coast. Severe thunderstorms are expected to produce damaging wind gusts from the Upper Ohio Valley into the Mid Atlantic, and across the central Great Plains this afternoon and evening. Large hail and heavy rain is also possible across the Great Plains. Read More >
The first day of meteorological winter officially begins Monday morning. Monday is the shortest day of the year, and tonight is the longest night. Each day will get a little longer until June 20th.
| Sunrise | Sunset | Daylength (hours) | |
| Madison: | |||
| December 19, 2020 | 7:25 AM | 4:25 PM | 8:59:51 |
| December 20, 2020 | 7:26 AM | 4:25 PM | 8:59:45 |
| December 21, 2020 | 7:26 AM | 4:26 PM | 8:59:45 |
| December 22, 2020 | 7:27 AM | 4:26 PM | 8:59:48 |
| Milwaukee: | |||
| December 19, 2020 | 7:19 AM | 4:19 PM | 9:00:07 |
| December 20, 2020 | 7:20 AM | 4:20 PM | 9:00:02 |
| December 21, 2020 | 7:20 AM | 4:20 PM | 9:00:01 |
| December 22, 2020 | 7:21 AM | 4:21 PM | 9:00:05 |
source: https://www.esrl.noaa.gov/gmd/grad/solcalc/ and https://www.timeanddate.com/sun/usa
https://www.esrl.noaa.gov/gmd/grad/solcalc/table.php?lat=43.0731&lon=-89.4012&year=2020
https://www.esrl.noaa.gov/gmd/grad/solcalc/table.php?lat=43.0389&lon=-87.9065&year=2020
The Winter Solstice occurs on Monday, December 21st at 4:02 am (10:02 UTC, Dec 21). This is when the Sun is directly overhead at "high noon" at the Tropic Of Capricorn, or -23.5 degrees of latitude south of the equator. The Summer Solstice, on the other hand, is when the sun is directly overhead at "high noon" at the Tropic Of Cancer, or +23.5 degrees latitude north of the equator. The shortest daylight hours of the year are around the Winter Solstice. For more info, go here: https://scijinks.gov/solstice/​
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