Grinnell, IA Weather Data
Grinnell, IA Current Weather Data
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Grinnell, IA Historical Weather Trends
*Historical weather data collected from Des Moines Township, IA
Grinnell, IA
Grinnell, IA area Highlights
Grinnell, IA Chance of Sunshine
Month
% Sunny
Clear Days
Partly Cloudy Days
Cloudy Days
January
48.39%
8
7
16
February
48.28%
8
6
15
March
45.16%
7
7
17
April
50.00%
7
8
15
May
51.61%
8
8
15
June
62.07%
8
10
11
July
70.00%
10
11
9
August
67.74%
11
10
10
September
64.52%
12
8
11
October
61.29%
12
7
12
November
46.67%
7
7
16
December
45.16%
7
7
17
Grinnell, IA Historical Temperature
Month
Average
Max Average
Min Average
January
17.52°
25.98°
9°
February
22.38°
30.92°
13.8°
March
36.88°
46.5°
27.18°
April
48.73°
59.87°
37.55°
May
61.48°
71.8°
51.13°
June
69.76°
80.56°
58.91°
July
73.97°
84.42°
63.5°
August
72.08°
83.54°
60.6°
September
62.33°
74.77°
49.87°
October
51.2°
62.57°
39.78°
November
38.68°
48.9°
28.4°
December
25.73°
34.13°
17.28°
Grinnell, IA Rainfall and Snowfall Average
Month
Average Rainfall
Average Snowfall
January
0.36 Inches
2.5 Inches
February
0.88 Inches
3.65 Inches
March
1.35 Inches
3.05 Inches
April
4.96 Inches
0 Inches
May
5.43 Inches
2.1 Inches
June
5.05 Inches
0 Inches
July
3.2 Inches
0 Inches
August
3.76 Inches
0 Inches
September
3.01 Inches
0 Inches
October
2.44 Inches
0 Inches
November
1.38 Inches
0.6 Inches
December
2.23 Inches
8.85 Inches
Grinnell, IA Energy Demand
January
47.25
0
47.25
February
39.1
0
39.1
March
27.88
0.1
27.98
April
16.28
0.18
16.46
May
5.68
2.43
8.11
June
0.86
5.86
6.72
July
0.16
9.34
9.5
August
0.4
6.82
7.22
September
4.23
1.78
6.01
October
14.05
0.42
14.47
November
25.97
0
25.97
December
40.46
0
40.46
