Boulder, Colo.

Elementary school students are dropped off at class as Winter Storm Zeus dropped snow over Boulder, Colo., Tuesday April 23, 2013. The Colorado Avalanche Information Center says avalanche danger there is considerable. (AP Photo/Brennan Linsley)

Winter Storm Zeus delivered even more snow to parts of the Rockies, Plains, and Upper Midwest on April 22-23, 2013, and was promptly followed by record cold temperatures.

The additional snowfall, coming on the heels of Winter Storms Walda, Xerxes and Yogi earlier in the month, pushed two cities to all-time monthly snowfall records:

Downtown Rapid City, S.D. reached a total of 39.5 inches for April 2013 to date, surpassing the 38.5 inches set in April 1927 as both the April record and the record for any month on the calendar.Duluth, Minn., reached a total of 51.0 inches, breaking its monthly record of 50.1 inches set in November 1991. The city had already crushed its April record of 31.6 inches set in 1950.

Farther south, the National Weather Service in Goodland, Kan., reported 9.2 inches of snow from Zeus, making it the heaviest snowstorm so late in the season at that location.

Two Major League Baseball games, hosted by the Minnesota Twins and the Colorado Rockies respectively, were postponed due to the snow on Monday, April 22.

(MORE: Winter Storm Zeus Impacts)

In the wake of the storm, temperatures plummeted. Sheridan, Wyo., recorded a low of 2 degrees below zero on the morning of April 23. Not only did this shatter the previous record of 15 above zero for the date, but it was the latest subzero reading ever recorded there -- by a margin of 18 days! The previous latest measured subzero low there was April 5 in 1936.

Daily record low temperatures were also set Tuesday morning in Rapid City, S.D.; Pierre, S.D.; Mobridge, S.D.; Huron, S.D.; Bismarck, N.D.; Burns, Ore.; Pocatello, Idaho; Missoula, Mont.; Butte, Mont.; Burlington, Colo.; Chadron, Neb.; and Goodland, Kan.

(MORE: Winter Storms of 2012-13 from A to Z)