42 F. high in the Twin Cities Sunday.
49 F. average high for March 31.
50 F. high on March 31, 2012.
Trace of snow left on the ground in the Twin Cities (MSP International Airport).
18-24 F. wind chills expected for today's Twins Home Opener
50F highs return Wednesday into Friday.
Rain possible by late Friday into Saturday.
The interactive graphic above shows a comparison between the temperature departures from average during March of 2013 (through March 28) and March 2012.
Graphic credit above: "Annual increase of CO2 at Mauna Loa. The 12-month running mean reduces the double noise in the 12-month change. Blue asterisks show the end-of-year 12-month change often reported in the media."
Q: How would melting Arctic ice lead to cold snaps?
A: The theory is the loss of sea ice means more heat is released from the open ocean, warming the layer of polar air over the water. That reduces the temperature and air pressure differentials with more southern latitudes, increasing the likelihood of a negative state in the atmospheric circulation..."