Dennis, MA weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Dennis now
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Dennis weather by the hour
Dennis weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Dennis.
This week in Dennis
Sunrise, sunset and moon in Dennis
What is the weather usually like in Dennis?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 78°F average high
- Februarycoldest month · 24°F average low
- 46.3 inprecipitation per year · 1,177 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Dennis: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station W HARWICH, MA US (USC00199227), adjusted for the elevation of Dennis.
Dennis weather month by month
Sunrise and sunset in Dennis through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:03 AM | 4:36 PM | 9 h 33 min |
| February | 6:34 AM | 5:15 PM | 10 h 41 min |
| March | 6:50 AM | 6:48 PM | 11 h 57 min |
| April | 5:58 AM | 7:22 PM | 13 h 24 min |
| May | 5:19 AM | 7:54 PM | 14 h 35 min |
| June | 5:03 AM | 8:18 PM | 15 h 14 min |
| July | 5:17 AM | 8:15 PM | 14 h 57 min |
| August | 5:47 AM | 7:42 PM | 13 h 54 min |
| September | 6:19 AM | 6:51 PM | 12 h 32 min |
| October | 6:51 AM | 6:01 PM | 11 h 9 min |
| November | 6:28 AM | 4:21 PM | 9 h 53 min |
| December | 6:59 AM | 4:12 PM | 9 h 13 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in Dennis?
Dennis has a warm-summer humid continental climate. The warmest month is July, with an average high of 78°F (25°C), and the coldest is February, with average lows of 24°F (-5°C).
It gets about 46.3 inches (1,177 mm) of precipitation a year. The wettest month is December and the driest is July.
The best time to visit Dennis is June to September. At 23 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Dennis
Weather in towns near Dennis
Questions about the weather in Dennis
What is the hottest month in Dennis?
July, with an average high of 78°F (25°C).
What is the coldest month in Dennis?
February, with an average low of 24°F (-5°C).
How much does it rain in Dennis?
About 46.3 inches (1,177 mm) a year; the wettest month is December.
Does it snow in Dennis?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Dennis?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Dennis have?
Warm-summer humid continental (Köppen Dfb).
What is the weather like in Dennis in November?
Highs average 52°F and lows 37°F, with about 4.0 inches of precipitation.
What time is sunrise in Dennis?
Around 6:28 AM in mid-November, and sunset around 4:21 PM. Today’s exact times are shown above.
Where does this Dennis weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Dennis.
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