116 Years of Ice-out Data
Lake Minnetonka, Minnesota
to Journey North Ice-out
on the right includes 116 ice-out dates for Lake Minnetonka from 1887
first glance, do you see any pattern?
a line on the scattergram to show the average ice-out date for Lake
Minnetonka. (To find the average, use the ice-out records on this
the scattergram, find the five years when ice-out occurred the EARLIEST.
find the five years when ice-out occurred the LATEST.
you see any patterns?
else might you display the data?
concerned about global warming use ice-out dates as one measure
of climate change. Do you see a warming trend, based on data from