Updraft® - Minnesota Weather News

Brighter days: Minnesota gaining 3 minutes of daylight per day now

Rapidly growing daylight and a higher sun angle boosting temperatures on sunny days

Bright sun at the Weather Lab on Monday.
Bright sun at the Weather Lab on Monday.
Paul Huttner | MPR News

You can feel it now. The ascending springtime sunshine is beaming much more energy into Minnesota on sunny days.

3 minutes a day

Minnesota is gaining three minutes of daylight per day now.

Solar table for Minneapolis
Solar table for Minneapolis
timeanddate.com

Our daylight is now 12 hours and 42 minutes. We’ve gained nearly four hours of daylight since December’s winter solstice.

Solar output rapidly increasing

Tuesday’s midday sun is as high in the sky as it was on Sept. 9. The midday sun peaks at 50 degrees above the southern horizon at solar noon Tuesday.

Solar noon the time of day when the sun reaches peak elevation. With daylight saving time that occurs at 1:17 pm in Minnesota right now.

Solar data for the Twin Cities
Solar data for the Twin Cities
timeanddate.com

Minnesota’s rapidly increasing solar energy really boosts temperatures now on sunny days, especially in areas with no snow cover.

That’s because bare ground absorbs and converts around 70 percent of incoming solar radiation, and re-radiates it to warm the lower atmosphere. The high albedo of fresh snow cover reflects around 90-percent of incoming solar radiation back into space before it can heat the air.

Albedo snow cover
NOAA
Huttner, Paul

So, our stronger spring sun and bare ground can add up to 10 degrees to temperatures this time of year vs. snow-covered areas.

Enjoy.