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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, the same as December, is another cold winter month in Watertown, Massachusetts, with an average temperature ranging between min 21.7°F (-5.7°C) and max 33.6°F (0.9°C). Watertown's January weather reaches an average high of 33.6°F (0.9°C) and an average low of 21.7°F (-5.7°C), making it the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Watertown, Massachusetts, with an average temperature ranging between max 36.3°F (2.4°C) and min 23°F (-5°C). Watertown marks the arrival of February with an average high-temperature of a still wintry 36.3°F (2.4°C), hardly different from January's 33.6°F (0.9°C). Weather in February »
Weather in March
March, the first month of the spring in Watertown, is a chilly month, with temperature in the range of an average high of 43.3°F (6.3°C) and an average low of 30°F (-1.1°C). March's onset brings a subtle temperature rise, moving from a cold 36.3°F (2.4°C) in February to a frosty 43.3°F (6.3°C). Weather in March »
Weather in April
April in Watertown, Massachusetts, is a refreshing spring month, with an average temperature varying between 55.9°F (13.3°C) and 39.9°F (4.4°C). The shift from March to April brings an increase in the average high-temperature, moving from a chilly 43.3°F (6.3°C) to a refreshing 55.9°F (13.3°C). Weather in April »
Weather in May
The last month of the spring, May, is an enjoyable month in Watertown, Massachusetts, with temperature in the range of an average high of 66.7°F (19.3°C) and an average low of 49.6°F (9.8°C). As April transitions into May, a change in temperatures is observed, with average highs moving from a refreshing 55.9°F (13.3°C) to a comfortable 66.7°F (19.3°C). Weather in May »
Weather in June
June, the first month of the summer in Watertown, is a warm month, with an average temperature ranging between min 56.8°F (13.8°C) and max 75°F (23.9°C). A minor escalation in the average high-temperature is seen with the onset of June, moving from a refreshing 66.7°F (19.3°C) in May to a moderately hot 75°F (23.9°C). Weather in June »
Weather in July
July, like June, in Watertown, Massachusetts, is a moderately hot summer month, with temperature in the range of an average high of 81.9°F (27.7°C) and an average low of 64°F (17.8°C). July is the warmest month, with an average high-temperature of 81.9°F (27.7°C) and an average low-temperature of 64°F (17.8°C). The heat index value during July is evaluated at a tropical 87.8°F (31°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Watertown, Massachusetts, with an average temperature ranging between max 81°F (27.2°C) and min 63°F (17.2°C). August commences with an average high-temperature of a still warm 81°F (27.2°C), showing little deviation from July's 81.9°F (27.7°C). Weather in August »
Weather in September
September, the first month of the autumn in Watertown, is still a pleasant month, with an average temperature fluctuating between 56.3°F (13.5°C) and 73°F (22.8°C). The beginning of September brings a slight decrease in the average high-temperature, transitioning from a warm 81°F (27.2°C) in August to an agreeable 73°F (22.8°C). Weather in September »
Weather in October
October, like September, in Watertown, Massachusetts, is another enjoyable autumn month, with an average temperature ranging between min 47.3°F (8.5°C) and max 61°F (16.1°C). October weather is marked by a drop in the average high-temperature, falling from a pleasant 73°F (22.8°C) in September to a comfortable 61°F (16.1°C). Weather in October »
Weather in November
November, the last month of the autumn in Watertown, is another chilly month, with an average temperature ranging between min 36.7°F (2.6°C) and max 49.3°F (9.6°C). With November's arrival, Watertown's weather changes as the average high-temperature falls from a refreshing 61°F (16.1°C) in October to a chilly 49.3°F (9.6°C). Weather in November »
Weather in December
December, the first month of the winter in Watertown, is also a wintry month, with an average temperature varying between 39.2°F (4°C) and 28.8°F (-1.8°C). December suggests a modest reduction in the average high-temperature, shifting from a chilly 49.3°F (9.6°C) in November to a cold 39.2°F (4°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest month in Watertown?
In Watertown, Massachusetts, the average lowest temperatures are observed in January, with a high of 33.6°F (0.9°C) and a low of 21.7°F (-5.7°C).
How much does it rain in Watertown?
Throughout the year, in Watertown, Massachusetts, there are 85.9 rainfall days, and 5.87" (149mm) of precipitation is accumulated.
When does it snow in Watertown?
Months with snowfall in Watertown, Massachusetts, are January through May, November and December.
How much does it snow in Watertown?
Throughout the year, in Watertown, Massachusetts, there are 18.8 snowfall days, and 3.15" (80mm) of snow is accumulated.
When is the lowest UV index in Watertown?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Watertown, Massachusetts.
What is the most humid month in Watertown?
The most humid month in Watertown, Massachusetts, is February, with an average relative humidity of 78%.
What is the month with the least sunshine in Watertown?
With an average of 4.7h of sunshine, February has the least sunshine of the year in Watertown.
When is Daylight Saving Time (DST) in Watertown?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Watertown, Massachusetts, 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 Watertown?
April is the least humid month in Watertown, Massachusetts, with an average relative humidity of 70%.
When it does not snow in Watertown?
In Watertown, snow does not fall in June through October.
When are the longest days in Watertown?
The month with the longest days in Watertown is June, with an average of 15h and 12min of daylight.
What is the month with the highest UV index in Watertown?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What time of the year is the hottest in Watertown?
July is the warmest month in Watertown, Massachusetts, with the temperature often reaching an average high of 81.9°F (27.7°C) and an average low of 64°F (17.8°C).
What month has the most sunshine in Watertown?
August has the most sunshine of the year in Watertown, with an average of 10.5h of sunshine.
What is the driest month in Watertown?
September is the month with the least rainfall. Rain falls for 6.6 days and accumulates 0.24" (6mm) of precipitation.
What is the rainiest month in Watertown?
The month with the most rainfall in Watertown is November, when the rain falls for 5.6 days and typically aggregates up to 0.67" (17mm) of precipitation.
What is the snowiest month in Watertown?
The month with the most snowfall in Watertown is December, when snow falls for 2.6 days and typically aggregates up to 0.91" (23mm) of snow.
What is the month with the shortest days in Watertown?
December has the shortest days of the year in Watertown, Massachusetts, with an average of 9h and 6min of daylight.
Average temperature
Watertown, MA
The warmest month (with the highest average high temperature) is July (81.9°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°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure
Watertown, 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:
29.92"Hg
- Average pressure in July:
29.94"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 (29.92"Hg).
Average wind speed
Watertown, MA
- Average wind speed in January:
9.1mph - Average wind speed in February:
8.9mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.3mph - Average wind speed in May:
7.1mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
5.9mph - Average wind speed in August:
5.8mph - Average wind speed in September:
6.3mph - Average wind speed in October:
7.6mph - Average wind speed in November:
8mph - Average wind speed in December:
8.6mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity
Watertown, MA
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).
Average rainfall
Watertown, MA
- Average rainfall in January:
0.43" - Average rainfall in February:
0.39" - Average rainfall in March:
0.47" - Average rainfall in April:
0.63" - Average rainfall in May:
0.51" - Average rainfall in June:
0.51"
- Average rainfall in July:
0.51" - Average rainfall in August:
0.43" - Average rainfall in September:
0.24" - Average rainfall in October:
0.51" - Average rainfall in November:
0.67" - Average rainfall in December:
0.55"
The wettest month (with the highest rainfall) is November (0.67").
The driest month (with the least rainfall) is September (0.24").
Average rainfall days
Watertown, MA
- Average rainfall days in January:
5.7 days - Average rainfall days in February:
4.1 days - Average rainfall days in March:
6.8 days - Average rainfall days in April:
9 days - Average rainfall days in May:
8.9 days - Average rainfall days in June:
8.2 days
- Average rainfall days in July:
10.2 days - Average rainfall days in August:
7.8 days - Average rainfall days in September:
6.6 days - Average rainfall days in October:
6.9 days - Average rainfall days in November:
5.6 days - Average rainfall days in December:
6.1 days
The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is February (4.1 days).
Average snowfall
Watertown, MA
- Average snowfall in January:
0.39" - Average snowfall in February:
0.67" - Average snowfall in March:
0.75" - Average snowfall in April:
0.08" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is December (0.91").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Watertown, MA
- Average snowfall days in January:
4.9 days - Average snowfall days in February:
4.8 days - Average snowfall days in March:
4.5 days - Average snowfall days in April:
0.9 days - Average snowfall days in May:
0.1 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:
0.1 days - Average snowfall days in November:
0.9 days - Average snowfall days in December:
2.6 days
The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Watertown, 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 0min - 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 6min).
- Average sunshine in January:
5h and 1min - Average sunshine in February:
4h and 4min - Average sunshine in March:
5h and 5min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 3min - Average sunshine in September:
8h and 4min - Average sunshine in October:
6h and 1min - Average sunshine in November:
5h and 4min - 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
Watertown, MA
- Average sunshine days in January:
22.5 days - Average sunshine days in February:
20.2 days - Average sunshine days in March:
20.3 days - Average sunshine days in April:
18.3 days - Average sunshine days in May:
18.7 days - Average sunshine days in June:
17.5 days
- Average sunshine days in July:
17.8 days - Average sunshine days in August:
19.9 days - Average sunshine days in September:
21.4 days - Average sunshine days in October:
21.7 days - Average sunshine days in November:
22.5 days - Average sunshine days in December:
22.2 days
The months with the most sunshine days are January and November (22.5 days).
The month with the least sunshine days is June (17.5 days).
Average UV index
Watertown, 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
Watertown, MA
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Watertown, 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).
Watertown, Massachusetts, USA
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