Mason City Weather Information

Mason City historical weather data by month.

Chance Of Sunshine

ANNUAL CHANCE OF SUNSHINE 52.09%
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Annual chance of sunshine: 52.09%
Month
% Sunny
Clear Days
Partly Cloudy Days
Cloudy Days
January
48.39%
8
7
16
February
46.43%
7
6
15
March
41.94%
6
7
18
April
46.67%
6
8
16
May
53.33%
7
9
14
June
60.00%
7
11
12
July
65.63%
9
12
11
August
64.52%
9
11
11
September
60.00%
10
8
12
October
56.25%
10
8
14
November
40.00%
5
7
18
December
41.94%
7
6
18

Temperature

JULY HIGH 82.9° - JANUARY LOW 3.2°
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Month
Average
Max Average
Min Average
January
12.9°
22.5°
3.2°
February
19.3°
28.7°
9.9°
March
31.6°
41°
22.1°
April
44.8°
55.8°
33.7°
May
58.1°
69.7°
46.5°
June
68.1°
79.7°
56.4°
July
71.9°
82.9°
60.8°
August
69.3°
80.3°
58.2°
September
60.4°
72.4°
48.3°
October
48.4°
60.2°
36.6°
November
32.2°
41.5°
22.9°
December
18.6°
27.2°
9.9°

Rainfall

Average Annual Rainfall 34.58 inches
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Month
Average Rainfall
January
0.9 Inches
February
0.77 Inches
March
2.02 Inches
April
3.35 Inches
May
4.37 Inches
June
5.14 Inches
July
4.45 Inches
August
4.67 Inches
September
3.34 Inches
October
2.47 Inches
November
2.07 Inches
December
1.03 Inches

Sum Of Heating & Cooling Degree Days

Potential Demand For Energy
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Month
Heating Degree Days
Cooling Degree Days
January
1617
0
February
1279
0
March
1037
0
April
608
1
May
262
48
June
50
141
July
15
227
August
34
165
September
175
36
October
515
1
November
984
0
December
1440
0