Chatham, MA
on Tuesday, September 9, 2008
| Daily Summary |
| | Actual | Average | Record |
| Temperature |
| Mean Temperature |
°F
|
°F
|
|
| Max Temperature |
75°F
|
70°F
|
82°F
(2007) |
| Min Temperature |
64°F
|
57°F
|
46°F
(1990) |
| Cooling Degree Days |
4 |
|
|
| Growing Degree Days | 20 (Base
°F
) | | |
| Moisture |
| Dew Point |
63°F
| | |
| Average Humidity |
85 |
|
|
| Maximum Humidity |
96 |
|
|
| Minimum Humidity |
73 |
|
|
| Precipitation |
| Precipitation |
0.23 in
|
in
|
in
() |
| Wind |
| Wind Speed |
3 mph
| | |
| Max Wind Speed |
13 mph
| | |
| Max Gust Speed |
25 mph
| | |
| Visibility |
9 miles
| | |
| Events |
Rain
| | |
Averages and records for this station are not official NWS values.
|
| Key: T is trace of precipitation, MM is missing value |
|
Source: NWS Daily Summary |
| Seasonal Weather Averages |
| Time(EDT) | Temperature | Dew Point | Humidity | Pressure | Visibility | Wind Direction | Wind Speed | Gust Speed | Precipitation | Events | Conditions |
|---|
| 12:52 AM |
64.0°F
|
61.0°F
|
90% |
30.15 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Clear |
| 1:52 AM |
64.9°F
|
60.1°F
|
84% |
30.14 in
|
10.0 miles
|
WSW |
3.5 mph
|
-
|
N/A |
|
Clear |
| 2:52 AM |
66.9°F
|
60.1°F
|
79% |
30.14 in
|
10.0 miles
|
SW |
4.6 mph
|
-
|
N/A |
|
Clear |
| 3:52 AM |
66.9°F
|
61.0°F
|
81% |
30.13 in
|
10.0 miles
|
SSW |
5.8 mph
|
-
|
N/A |
|
Clear |
| 4:52 AM |
66.9°F
|
63.0°F
|
87% |
30.12 in
|
10.0 miles
|
SSW |
3.5 mph
|
-
|
N/A |
|
Clear |
| 5:52 AM |
66.9°F
|
64.0°F
|
90% |
30.12 in
|
10.0 miles
|
SSW |
4.6 mph
|
-
|
N/A |
|
Clear |
| 6:52 AM |
66.9°F
|
64.0°F
|
90% |
30.11 in
|
10.0 miles
|
South |
4.6 mph
|
-
|
N/A |
|
Clear |
| 7:52 AM |
69.1°F
|
64.9°F
|
87% |
30.09 in
|
10.0 miles
|
South |
4.6 mph
|
-
|
N/A |
|
Clear |
| 8:52 AM |
72.0°F
|
64.0°F
|
76% |
30.08 in
|
10.0 miles
|
SSW |
8.1 mph
|
-
|
N/A |
|
Clear |
| 9:52 AM |
72.0°F
|
66.0°F
|
81% |
30.08 in
|
10.0 miles
|
SSW |
11.5 mph
|
17.3 mph
|
N/A |
|
Clear |
| 10:52 AM |
75.0°F
|
68.0°F
|
79% |
30.07 in
|
10.0 miles
|
SSW |
10.4 mph
|
18.4 mph
|
N/A |
|
Scattered Clouds |
| 11:52 AM |
75.9°F
|
68.0°F
|
76% |
30.06 in
|
10.0 miles
|
SSW |
10.4 mph
|
21.9 mph
|
N/A |
|
Mostly Cloudy |
| 12:52 PM |
73.9°F
|
64.9°F
|
73% |
30.05 in
|
10.0 miles
|
SSW |
12.7 mph
|
25.3 mph
|
N/A |
|
Overcast |
| 2:52 PM |
73.0°F
|
66.9°F
|
81% |
30.01 in
|
10.0 miles
|
SW |
12.7 mph
|
24.2 mph
|
N/A |
|
Mostly Cloudy |
| 3:46 PM |
66.2°F
|
64.4°F
|
94% |
30.01 in
|
1.8 miles
|
SW |
8.1 mph
|
-
|
0.09 in
|
Rain
|
Heavy Rain |
| 3:52 PM |
66.0°F
|
64.9°F
|
96% |
30.00 in
|
1.8 miles
|
SW |
5.8 mph
|
-
|
0.11 in
|
Rain
|
Light Rain |
| 4:52 PM |
68.0°F
|
64.9°F
|
90% |
29.97 in
|
10.0 miles
|
SSW |
6.9 mph
|
-
|
0.02 in
|
|
Mostly Cloudy |
| 5:36 PM |
68.0°F
|
66.2°F
|
94% |
29.97 in
|
2.0 miles
|
SSW |
10.4 mph
|
19.6 mph
|
0.04 in
|
Rain
|
Rain |
| 5:47 PM |
68.0°F
|
66.2°F
|
94% |
29.97 in
|
4.0 miles
|
SW |
9.2 mph
|
20.7 mph
|
0.06 in
|
Rain
|
Rain |
| 5:52 PM |
66.9°F
|
64.9°F
|
93% |
29.98 in
|
4.0 miles
|
SW |
9.2 mph
|
19.6 mph
|
0.06 in
|
Rain
|
Rain |
| 6:20 PM |
66.2°F
|
64.4°F
|
94% |
29.94 in
|
9.0 miles
|
SSW |
10.4 mph
|
16.1 mph
|
0.03 in
|
Rain
|
Light Rain |
| 6:52 PM |
68.0°F
|
66.0°F
|
93% |
29.96 in
|
10.0 miles
|
SSW |
10.4 mph
|
17.3 mph
|
0.04 in
|
Rain
|
Light Rain |
| 7:52 PM |
69.1°F
|
66.0°F
|
90% |
29.96 in
|
10.0 miles
|
SSW |
8.1 mph
|
18.4 mph
|
N/A |
|
Clear |
| 8:52 PM |
70.0°F
|
66.9°F
|
90% |
29.98 in
|
10.0 miles
|
SW |
10.4 mph
|
17.3 mph
|
0.00 in
|
|
Overcast |
| 9:52 PM |
70.0°F
|
66.0°F
|
87% |
29.98 in
|
10.0 miles
|
SW |
11.5 mph
|
19.6 mph
|
N/A |
|
Overcast |
| 10:24 PM |
69.8°F
|
66.2°F
|
88% |
29.97 in
|
10.0 miles
|
WSW |
6.9 mph
|
-
|
N/A |
|
Overcast |
| 10:44 PM |
69.8°F
|
66.2°F
|
88% |
29.98 in
|
10.0 miles
|
Variable |
6.9 mph
|
-
|
N/A |
|
Overcast |
| 11:52 PM |
68.0°F
|
64.9°F
|
90% |
29.99 in
|
10.0 miles
|
West |
5.8 mph
|
-
|
N/A |
|
Mostly Cloudy |
|
|
