Maple Valley Weather Information

Maple Valley historical weather data by month.

Chance Of Sunshine

ANNUAL CHANCE OF SUNSHINE 44.84%
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Annual chance of sunshine: 44.84%
Month
% Sunny
Clear Days
Partly Cloudy Days
Cloudy Days
January
25.81%
3
5
23
February
32.14%
3
6
19
March
38.71%
4
8
19
April
46.67%
5
9
16
May
54.84%
7
10
14
June
50.00%
7
8
15
July
70.97%
12
10
9
August
64.52%
10
10
11
September
56.67%
9
8
13
October
41.94%
5
8
18
November
30.00%
3
6
21
December
25.81%
3
5
23

Temperature

JULY HIGH 75.2° - JANUARY LOW 32°
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Month
Average
Max Average
Min Average
January
37.9°
43.7°
32°
February
40.5°
48°
32.9°
March
43.6°
52.5°
34.6°
April
47.8°
57.9°
37.7°
May
53.5°
64.3°
42.7°
June
58.4°
69.3°
47.4°
July
63°
75.2°
50.7°
August
63°
75.5°
50.4°
September
57.7°
69.7°
45.6°
October
49.2°
58.8°
39.6°
November
42°
48.5°
35.5°
December
37.4°
43°
31.8°

Rainfall

Average Annual Rainfall 57.12 inches
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Month
Average Rainfall
January
7.44 Inches
February
6.09 Inches
March
5.59 Inches
April
4.49 Inches
May
3.63 Inches
June
3.11 Inches
July
1.69 Inches
August
1.58 Inches
September
2.7 Inches
October
4.7 Inches
November
8.47 Inches
December
7.63 Inches

Sum Of Heating & Cooling Degree Days

Potential Demand For Energy
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Month
Heating Degree Days
Cooling Degree Days
January
842
0
February
688
0
March
664
0
April
516
0
May
359
2
June
210
9
July
97
33
August
109
46
September
230
9
October
490
0
November
689
0
December
856
0