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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 Dedham, Massachusetts, is an icy winter month, with an average temperature fluctuating between 21.9°F (-5.6°C) and 33.6°F (0.9°C). January, recording an average high temperature of 33.6°F (0.9°C) and a low temperature of 21.9°F (-5.6°C), is Dedham's coldest month. Weather in January »
Weather in February
The last month of the winter, February, is also an icy month in Dedham, Massachusetts, with an average temperature ranging between min 23.2°F (-4.9°C) and max 36.5°F (2.5°C). Dedham's February showcases an average high-temperature of a still icy 36.5°F (2.5°C), hardly distinct from January's 33.6°F (0.9°C). Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Dedham, Massachusetts, with an average temperature varying between 30.7°F (-0.7°C) and 43.7°F (6.5°C). Dedham perceives a slight temperature ascent during March, with average high-temperatures adjusting from a cold 36.5°F (2.5°C) in February to a chilly 43.7°F (6.5°C). Weather in March »
Weather in April
April in Dedham, Massachusetts, is a moderate spring month, with temperature in the range of an average high of 55.6°F (13.1°C) and an average low of 40.3°F (4.6°C). April comes with an increase, with the average high-temperature moving from a chilly 43.7°F (6.5°C) in March to a mild 55.6°F (13.1°C). Weather in April »
Weather in May
The last month of the spring, May, is a refreshing month in Dedham, Massachusetts, with an average temperature fluctuating between 50°F (10°C) and 66.6°F (19.2°C). As Dedham transitions into May, the average high-temperature shows a change, moving from a moderate 55.6°F (13.1°C) in April to an enjoyable 66.6°F (19.2°C). Weather in May »
Weather in June
June, the first month of the summer in Dedham, is a warm month, with an average temperature fluctuating between 74.1°F (23.4°C) and 57°F (13.9°C). June brings a slight increase in the average high-temperature, progressing from a refreshing 66.6°F (19.2°C) in May to a warm 74.1°F (23.4°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Dedham, Massachusetts, with an average temperature varying between 81.3°F (27.4°C) and 64.8°F (18.2°C). Dedham's temperatures tend to reach their peak averages in July, with a high of 81.3°F (27.4°C) and a low of 64.8°F (18.2°C). The average heat index in July is appraised at a tropical 86°F (30°C). Weather in July »
Weather in August
August, the last month of the summer in Dedham, is another warm month, with an average temperature ranging between max 80.4°F (26.9°C) and min 63.1°F (17.3°C). August begins with an average high-temperature of a still moderately hot 80.4°F (26.9°C), reflecting close similarity to the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is also an agreeable month in Dedham, Massachusetts, with temperature in the range of an average high of 72.7°F (22.6°C) and an average low of 56.5°F (13.6°C). The transition into September involves a small decrease in the average high-temperature, dipping slightly from a moderately hot 80.4°F (26.9°C) in August to a pleasant 72.7°F (22.6°C). Weather in September »
Weather in October
October, like September, in Dedham, Massachusetts, is another enjoyable autumn month, with an average temperature varying between 61.3°F (16.3°C) and 47.3°F (8.5°C). As September transitions to October, the average high-temperature falls from an agreeable 72.7°F (22.6°C) to a comfortable 61.3°F (16.3°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Dedham, Massachusetts, with temperature in the range of an average low of 36.9°F (2.7°C) and an average high of 49.3°F (9.6°C). The arrival of November corresponds with a shift in temperature, down from a comfortable 61.3°F (16.3°C) in October to a chilly 49.3°F (9.6°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Dedham, Massachusetts, with an average temperature fluctuating between 39.6°F (4.2°C) and 29.1°F (-1.6°C). Dedham in December experiences a subtle temperature decline, with average high-temperatures reducing from a chilly 49.3°F (9.6°C) in November to an icy 39.6°F (4.2°C). Weather in December »
[Resources]Frequently asked questions
What part of the year is the coldest in Dedham?
January, with an average high of 33.6°F (0.9°C) and a low of 21.9°F (-5.6°C), signifies the coldest month of the year in Dedham.
How many days does it rain in Dedham?
In Dedham, Massachusetts, during the entire year, the rain falls for 147.4 days and collects up to 28.39" (721mm) of precipitation.
When does it snow in Dedham?
Months with snowfall in Dedham, Massachusetts, are January through April, October through December.
How many days does it snow in Dedham?
In Dedham, during the entire year, snow falls for 32.7 days and aggregates up to 22.01" (559mm) of snow.
When is the lowest UV index in Dedham?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
What is the most humid month in Dedham?
With an average relative humidity of 78%, February is the most humid month.
What is the month with the least sunshine in Dedham?
February has the least sunshine of the year in Dedham, with an average of 4.7h of sunshine.
When does it snow the most in Dedham?
The month with the most snowfall is March, when snow falls for 7.3 days and typically aggregates up to 5.24" (133mm) of snow.
When is Daylight Saving Time (DST) in Dedham?
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.
What is the least humid month in Dedham?
The least humid month in Dedham is April, with an average relative humidity of 70%.
When it does not snow in Dedham?
In Dedham, Massachusetts, snow does not fall in May through September.
When are the longest days in Dedham?
June has the longest days of the year, with an average of 15h and 12min of daylight.
What are the months with the highest UV index in Dedham?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What part of the year is the hottest in Dedham?
July is the month when Dedham's temperatures reach their peak, with averages of 81.3°F (27.4°C) and lows of 64.8°F (18.2°C).
What month has the most sunshine in Dedham?
The month with the most sunshine is August, with an average of 10.5h of sunshine.
What is the driest month in Dedham?
September is the month with the least rainfall in Dedham, Massachusetts. Rain falls for 11.8 days and accumulates 1.5" (38mm) of precipitation.
What is the wettest month in Dedham?
The month with the most rainfall in Dedham, Massachusetts, is December, when the rain falls for 10.7 days and typically aggregates up to 2.95" (75mm) of precipitation.
What is the month with the shortest days in Dedham?
With an average of 9h and 12min of daylight, December has the shortest days of the year in Dedham, Massachusetts.
Average temperature
Dedham, MA
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (33.6°F).
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure
Dedham, MA
- Average pressure in January:
30.01"Hg - Average pressure in February:
29.99"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.95"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:
30.07"Hg - Average pressure in December:
30.03"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Dedham, MA
- Average wind speed in January:
9.5mph - Average wind speed in February:
9.3mph - Average wind speed in March:
9.1mph - Average wind speed in April:
8.5mph - Average wind speed in May:
7.3mph - Average wind speed in June:
6.6mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6mph - Average wind speed in September:
6.5mph - Average wind speed in October:
7.9mph - Average wind speed in November:
8.5mph - Average wind speed in December:
8.9mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity
Dedham, MA
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).
Average rainfall
Dedham, MA
- Average rainfall in January:
2.32" - Average rainfall in February:
2.2" - Average rainfall in March:
2.87" - Average rainfall in April:
2.91" - Average rainfall in May:
2.05" - Average rainfall in June:
2.24"
The wettest month (with the highest rainfall) is December (2.95").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days
Dedham, MA
- Average rainfall days in January:
7.8 days - Average rainfall days in February:
7.8 days - Average rainfall days in March:
11.5 days - Average rainfall days in April:
14.7 days - Average rainfall days in May:
15.1 days - Average rainfall days in June:
15.1 days
- Average rainfall days in July:
15.8 days - Average rainfall days in August:
13.6 days - Average rainfall days in September:
11.8 days - Average rainfall days in October:
13.7 days - Average rainfall days in November:
9.8 days - Average rainfall days in December:
10.7 days
The month with the highest number of rainy days is July (15.8 days).
The months with the least rainy days are January and February (7.8 days).
Average snowfall
Dedham, MA
The month with the highest snowfall is March (5.24").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Dedham, MA
- Average snowfall days in January:
7.9 days - Average snowfall days in February:
8.2 days - Average snowfall days in March:
7.3 days - Average snowfall days in April:
1.3 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:
0.2 days - Average snowfall days in November:
2 days - Average snowfall days in December:
5.8 days
The month with the highest number of snowfall days is February (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Dedham, MA
- Average daylight in January:
9h and 3min - 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:
5h and 1min - Average sunshine in February:
4h and 4min - Average sunshine in March:
5h and 4min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 1min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 3min - Average sunshine in September:
8h and 2min - Average sunshine in October:
6h and 1min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Dedham, MA
- Average sunshine days in January:
17.3 days - Average sunshine days in February:
14.1 days - Average sunshine days in March:
14.5 days - Average sunshine days in April:
13.2 days - Average sunshine days in May:
14 days - Average sunshine days in June:
13.6 days
- Average sunshine days in July:
13.7 days - Average sunshine days in August:
15.5 days - Average sunshine days in September:
15.8 days - Average sunshine days in October:
15.5 days - Average sunshine days in November:
18 days - Average sunshine days in December:
16.5 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is April (13.2 days).
Average UV index
Dedham, MA
The months with the highest UV index are June, 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
Dedham, MA
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
Dedham, 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).
Dedham, Massachusetts, USA
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