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Weather Averages for
Chatham, MA
Latitude: 41°41'N,
Longitude: 69°59'W,
Elevation: 20.1 m,
Distance: 0.18 km
Average temperature
over 12 years |
°C |
10 |
0 |
0 |
2 |
7 |
12 |
18 |
21 |
20 |
17 |
12 |
7 |
1 |
Average high temperature
over 12 years |
°C |
14 |
3 |
3 |
6 |
12 |
17 |
22 |
26 |
25 |
21 |
16 |
11 |
5 |
Average low temperature
over 12 years |
°C |
6 |
-4 |
-3 |
-1 |
3 |
8 |
13 |
17 |
16 |
13 |
8 |
3 |
-2 |
Highest recorded temperature
over 12 years |
°C |
36 |
15 |
15 |
18 |
26 |
28 |
36 |
34 |
33 |
31 |
27 |
23 |
18 |
Lowest recorded temperature
over 12 years |
°C |
-22 |
-21 |
-22 |
-16 |
-7 |
0 |
5 |
10 |
10 |
2 |
-1 |
-9 |
-18 |
Average number of rainy days
over 12 years |
days |
71.6 |
7.2 |
7.5 |
6.5 |
6.7 |
5.4 |
4.2 |
5 |
6.9 |
5 |
4.2 |
6.4 |
6.6 |
Average number of days above 27°C
over 12 years |
days |
1.6 |
- |
- |
- |
- |
- |
0.5 |
0.8 |
0.3 |
- |
- |
- |
- |
Average precipitation
over 12 years |
cm |
98.8 |
9.7 |
10.2 |
8.9 |
9.7 |
6.1 |
5.1 |
6.3 |
10.4 |
7.6 |
6.1 |
10.4 |
8.4 |
Average relative humidity
over 12 years |
% |
77 |
75 |
74 |
73 |
74 |
76 |
77 |
78 |
80 |
80 |
79 |
77 |
75 |
Average dew point
over 12 years |
°C |
5 |
-4 |
-4 |
-2 |
2 |
7 |
13 |
17 |
16 |
13 |
8 |
3 |
-2 |
Average number of days below -1.5°C
over 12 years |
days |
101 |
25 |
22.7 |
19.3 |
3.7 |
0.1 |
- |
- |
- |
- |
0.8 |
8.6 |
20.8 |
Average number of days below -17.5°C
over 12 years |
days |
1 |
0.2 |
0.6 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
0.2 |
Average snowfall
over 12 years |
cm |
91.9 |
22.6 |
19.1 |
27.2 |
3.8 |
- |
- |
- |
- |
- |
- |
0.8 |
18.5 |
Check weather averages for nearby locations (some locations might offer more data):
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