8.0
9.0
10.0
11.0
12.0
13.0
1900.0
1915.0
1930.0
1945.0
1960.0
1975.0
1990.0
2005.0
2020.0
Yearly temperature averages for station USC00110072 in Iowa ( 41.1978 N , 90.7447 W ) from 1901 to 2018
The line is a LSQ fit to the values from 1921 to 2018. It actually represents a cooling of
0.6 deg in 100 years!