Expand
Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in South Chatham, Massachusetts, is an icy winter month, with temperature in the range of an average high of 39°F (3.9°C) and an average low of 31.6°F (-0.2°C). During January and February, South Chatham experiences its lowest temperatures, averaging a high-temperature of 39°F (3.9°C). Weather in January »
Weather in February
The last month of the winter, February, is another cold month in South Chatham, Massachusetts, with temperature in the range of an average high of 39°F (3.9°C) and an average low of 32°F (0°C). The coldest period falls in January and February, when the average high-temperature reaches 39°F (3.9°C). Weather in February »
Weather in March
The first month of the spring, March, is also a wintry month in South Chatham, Massachusetts, with temperature in the range of an average low of 35.4°F (1.9°C) and an average high of 41°F (5°C). The onset of March marks an average high-temperature of a still icy 41°F (5°C), hardly differing from February's 39°F (3.9°C). Weather in March »
Weather in April
April in South Chatham, Massachusetts, is a frosty spring month, with temperature in the range of an average high of 46.9°F (8.3°C) and an average low of 42.4°F (5.8°C). April showcases a minor temperature ascent, adjusting from March's icy 41°F (5°C) to a frosty 46.9°F (8.3°C). Weather in April »
Weather in May
May, the last month of the spring in South Chatham, is a cool month, with temperature in the range of an average high of 54.3°F (12.4°C) and an average low of 50.5°F (10.3°C). In South Chatham, the onset of May comes with a modest high-temperature shift, transitioning from April's chilly 46.9°F (8.3°C) to a cool 54.3°F (12.4°C). Weather in May »
Weather in June
June, the first month of the summer in South Chatham, is an enjoyable month, with temperature in the range of an average low of 58.8°F (14.9°C) and an average high of 63°F (17.2°C). June's onset brings a minor rise in the average high-temperature, moving from a cool 54.3°F (12.4°C) in May to a comfortable 63°F (17.2°C). Weather in June »
Weather in July
July is an agreeable summer month in South Chatham, Massachusetts, with temperature in the range of an average high of 70.3°F (21.3°C) and an average low of 67.1°F (19.5°C). July brings a slight rise in South Chatham's average high-temperature, moving from a comfortable 63°F (17.2°C) in June to a pleasant 70.3°F (21.3°C). Weather in July »
Weather in August
The last month of the summer, August, is also an agreeable month in South Chatham, Massachusetts, with an average temperature varying between 68.2°F (20.1°C) and 71.6°F (22°C). The warmest month is August, with an average high-temperature of 71.6°F (22°C) and an average low-temperature of 68.2°F (20.1°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a refreshing month in South Chatham, Massachusetts, with temperature in the range of an average high of 66.6°F (19.2°C) and an average low of 63.3°F (17.4°C). September's advent notes a subtle adjustment in average high-temperature to a refreshing 66.6°F (19.2°C) from August. Weather in September »
Weather in October
October, like September, is another refreshing autumn month in South Chatham, Massachusetts, with an average temperature fluctuating between 59.5°F (15.3°C) and 54.9°F (12.7°C). October reveals a small adjustment in temperature, transitioning from an average high of an enjoyable 66.6°F (19.2°C) in September to a mild 59.5°F (15.3°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in South Chatham, Massachusetts, with an average temperature fluctuating between 45.5°F (7.5°C) and 51.3°F (10.7°C). November is characterized by a mild reduction in the average high-temperature, from a refreshing 59.5°F (15.3°C) in October to a fresh 51.3°F (10.7°C). Weather in November »
Weather in December
December, the first month of the winter in South Chatham, is also a frosty month, with an average temperature varying between 44.4°F (6.9°C) and 37.6°F (3.1°C). The onset of December brings a small shift in high-temperatures, falling from a cool 51.3°F (10.7°C) in November to a chilly 44.4°F (6.9°C). Weather in December »
Updated: Aug 4, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
South Chatham's coldest period falls in January and February, when the average high-temperatures ascend to 39°F (3.9°C).
How many days does it rain?
Throughout the year, there are 142.4 rainfall days, and 22.09" (561mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through April, November and December.
How much does it snow?
Throughout the year, there are 20.8 snowfall days, and 4.37" (111mm) of snow is accumulated.
What are the months with the lowest UV index?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the snowiest month?
The month with the most snowfall is February, when snow falls for 5 days and typically aggregates up to 1.38" (35mm) of snow.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
When it does not snow?
In South Chatham, snow does not fall in May through October.
What are the most humid months in South Chatham?
The months with the highest humidity are June and July, with an average relative humidity of 85%.
When are the longest days?
June has the longest days of the year, with an average of 15h and 12min of daylight.
When is the highest UV index in South Chatham?
July and August, with an average maximum UV index of 6, are months with the highest UV index.
What is the hottest time of year?
South Chatham's August weather reaches an average high of 71.6°F (22°C) and an average low of 68.2°F (20.1°C), making it the warmest month.
What month has the most sunshine?
With an average of 10.7h of sunshine, August has the most sunshine of the year.
What is the wettest month?
The month with the most rainfall is October, when the rain falls for 13.4 days and typically aggregates up to 2.83" (72mm) of precipitation.
What is the least humid month?
With an average relative humidity of 74%, November is the least humid month.
What is the driest month?
The month with the least rainfall in South Chatham is November, when the rain falls for 11.5 days and typically collects 1.46" (37mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 12min of daylight.
What is the month with the least sunshine?
December has the least sunshine of the year, with an average of 4.3h of sunshine.
Average temperature
South Chatham, MA
The warmest month (with the highest average high temperature) is August (71.6°F).
The months with the lowest average high temperature are January and February (39°F).
The month with the highest average low temperature is August (68.2°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).
Average pressure
South Chatham, MA
- Average pressure in January:
29.99"Hg - Average pressure in February:
29.98"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.02"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
South Chatham, MA
- Average wind speed in January:
18mph - Average wind speed in February:
17.5mph - Average wind speed in March:
17.6mph - Average wind speed in April:
15.2mph - Average wind speed in May:
13.2mph - Average wind speed in June:
12.4mph
- Average wind speed in July:
11.6mph - Average wind speed in August:
11.4mph - Average wind speed in September:
13.5mph - Average wind speed in October:
15.5mph - Average wind speed in November:
16.9mph - Average wind speed in December:
17.5mph
The windiest month (with the highest average wind speed) is January (18mph).
The calmest month (with the lowest average wind speed) is August (11.4mph).
Average humidity
South Chatham, MA
The months with the highest relative humidity are June and July (85%).
The month with the lowest relative humidity is November (74%).
Average rainfall
South Chatham, MA
- Average rainfall in January:
1.69" - Average rainfall in February:
1.57" - Average rainfall in March:
1.85" - Average rainfall in April:
2.05" - Average rainfall in May:
1.81" - Average rainfall in June:
1.69"
- Average rainfall in July:
1.73" - Average rainfall in August:
1.5" - Average rainfall in September:
1.85" - Average rainfall in October:
2.83" - Average rainfall in November:
1.46" - Average rainfall in December:
2.05"
The wettest month (with the highest rainfall) is October (2.83").
The driest month (with the least rainfall) is November (1.46").
Average rainfall days
South Chatham, MA
- Average rainfall days in January:
9.5 days - Average rainfall days in February:
8.3 days - Average rainfall days in March:
10.8 days - Average rainfall days in April:
13.1 days - Average rainfall days in May:
14.6 days - Average rainfall days in June:
13.4 days
- Average rainfall days in July:
13.8 days - Average rainfall days in August:
12.1 days - Average rainfall days in September:
10.7 days - Average rainfall days in October:
13.4 days - Average rainfall days in November:
11.5 days - Average rainfall days in December:
11.2 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is February (8.3 days).
Average snowfall
South Chatham, MA
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
South Chatham, MA
- Average snowfall days in January:
6 days - Average snowfall days in February:
5 days - Average snowfall days in March:
3.7 days - Average snowfall days in April:
0.8 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.6 days - Average snowfall days in December:
4.7 days
The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
South Chatham, MA
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
4h and 3min - Average sunshine in February:
4h and 3min - Average sunshine in March:
5h and 5min - Average sunshine in April:
8h and 2min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 4min - Average sunshine in September:
8h and 3min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days
South Chatham, MA
- Average sunshine days in January:
13 days - Average sunshine days in February:
13.2 days - Average sunshine days in March:
13.9 days - Average sunshine days in April:
14.5 days - Average sunshine days in May:
14.8 days - Average sunshine days in June:
15.7 days
- Average sunshine days in July:
16.4 days - Average sunshine days in August:
17.6 days - Average sunshine days in September:
16.9 days - Average sunshine days in October:
15.5 days - Average sunshine days in November:
14.9 days - Average sunshine days in December:
13.6 days
The month with the most sunshine days is August (17.6 days).
The month with the least sunshine days is January (13 days).
Average UV index
South Chatham, MA
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
South Chatham, MA
The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility
South Chatham, MA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
South Chatham, Massachusetts, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location