Iowa 48-Month Period Ending in December Average Temperature
Degrees Fahrenheit
1901-1936
-99
189812
46.7
-0.8
189912
46.8
-0.7
190012
47.0
-0.5
190112
47.4
-0.1
190212
47.4
-0.1
190312
47.3
-0.2
190412
46.5
-1.0
190512
46.1
-1.4
190612
46.3
-1.2
190712
46.3
-1.2
190812
47.1
-0.4
190912
47.1
-0.4
191012
47.2
-0.3
191112
47.7
0.2
191212
46.9
-0.6
191312
47.5
0.0
191412
47.6
0.1
191512
47.2
-0.3
191612
47.5
0.0
191712
46.3
-1.2
191812
46.3
-1.2
191912
46.5
-1.0
192012
46.7
-0.8
192112
48.4
0.9
192212
48.6
1.1
192312
48.7
1.2
192412
48.2
0.7
192512
47.4
-0.1
192612
46.9
-0.6
192712
46.8
-0.7
192812
47.6
0.1
192912
47.0
-0.5
193012
47.5
0.0
193112
48.6
1.1
193212
48.3
0.8
193312
49.4
1.9
193412
49.7
2.2
193512
48.5
1.0
193612
48.6
1.1