October weather forecast
Charlestown, MA

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Weather in October

October, like September, in Charlestown, Massachusetts, is another comfortable autumn month, with an average temperature varying between 61.2°F (16.2°C) and 47.7°F (8.7°C).

Temperature

Charlestown's October weather features a mild decline in high-temperatures, reducing from an agreeable 72.9°F (22.7°C) in September to a comfortable 61.2°F (16.2°C). October nights cool down to an average low-temperature of 47.7°F (8.7°C).

Humidity

The average relative humidity in October in Charlestown is 76%.

Rainfall

In Charlestown, Massachusetts, in October, it is raining for 4 days, with typically 0.39" (10mm) of accumulated precipitation. Throughout the year, in Charlestown, Massachusetts, there are 47.8 rainfall days, and 4.13" (105mm) of precipitation is accumulated.

Snowfall

June through October are months without snowfall in Charlestown.

Daylight

In October, the average length of the day is 11h and 3min.
On the first day of the month, sunrise is at 6:42 am and sunset at 6:25 pm. On the last day of October, in Charlestown, Massachusetts, sunrise is at 7:17 am and sunset at 5:38 pm EDT.

Sunshine

In October, the average sunshine in Charlestown is 6h.

UV index

In October, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In October, an average UV index of 3 transforms into the following instructions:
Be vigilant - Preventing sunburn is recommended. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
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Frequently asked questions

What is the usual temperature for Charlestown in October?

In Charlestown, 61.2°F (16.2°C) is the average high-temperature and 47.7°F (8.7°C) is the average low-temperature during October. In July, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is computed to be 86°F (30°C).

What is the average humidity in October in Charlestown?

In Charlestown, Massachusetts, the average relative humidity in October is 76%.

How much does it rain in Charlestown in October?

In October, in Charlestown, Massachusetts, the rain falls for 4 days. Throughout October, 0.39" (10mm) of precipitation is accumulated.

When it does not snow in Charlestown?

June through October are months without snowfall in Charlestown, Massachusetts.

Does it snow in Charlestown in October?

In Charlestown, Massachusetts, in October, it doesn't snow. In November, it regularly snows.

How many hours of daylight does Charlestown have in October?

In October, the average day length in Charlestown is 11h and 3min.

When is the sunrise / sunset in October in Charlestown?

In October, on the first day of the month, sunrise is at 6:42 am and sunset at 6:25 pm. On the last day of the month, in Charlestown, Massachusetts, sunrise is at 7:17 am and sunset at 5:38 pm EDT.

How long on average sun shines in October in Charlestown?

In Charlestown, the average sunshine duration in October is 6h.

How high is the UV index in October in Charlestown?

In October, the average daily maximum UV index in Charlestown, Massachusetts, is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Charlestown, MA

Average temperature in October - Charlestown, MA
  • Average high temperature in October: 61.2°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.8°F).

  • Average low temperature in October: 47.7°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 (22.5°F).

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Average pressure in October
Charlestown, MA

Average pressure in October - Charlestown, MA
  • Average pressure in October: 30.01"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).

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Average wind speed in October
Charlestown, MA

Average wind speed in October - Charlestown, MA
  • Average wind speed in October: 8mph

The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in October
Charlestown, MA

Average humidity in October - Charlestown, MA
  • Average humidity in October: 76%

The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (69%).

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Average rainfall in October
Charlestown, MA

Average rainfall in October - Charlestown, MA
  • Average rainfall in October: 0.39"

The wettest month (with the highest rainfall) is November (0.55").
The driest month (with the least rainfall) is September (0.12").

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Average rainfall days in October
Charlestown, MA

Average rainfall days in October - Charlestown, MA
  • Average rainfall days in October: 4 days

The month with the highest number of rainy days is April (5.9 days).
The months with the least rainy days are January and September (2.9 days).

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Average snowfall in October
Charlestown, MA

Average snowfall in October - Charlestown, MA
  • Average snowfall in October: 0"

The month with the highest snowfall is December (0.71").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in October
Charlestown, MA

Average snowfall days in October - Charlestown, MA
  • Average snowfall days in October: 0.1 days

The month with the highest number of snowfall days is January (3.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in October /
Average sunshine in October
Charlestown, MA

Average daylight in October / Average sunshine in October - Charlestown, MA
  • Average daylight in October: 11h and 0min

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 October: 6h and 0min

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 36min).

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Average sunshine days in October
Charlestown, MA

Average sunshine days in October - Charlestown, MA
  • Average sunshine days in October: 25 days

The month with the most sunshine days is December (25.5 days).
The month with the least sunshine days is July (22.8 days).

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Average UV index in October
Charlestown, MA

Average UV index in October - Charlestown, MA
  • Average UV index in October: 3

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).

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Average cloud cover in October
Charlestown, MA

Average cloud cover in October - Charlestown, MA
  • Average cloud cover in October: 44

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in October
Charlestown, MA

Average visibility in October - Charlestown, MA
  • Average visibility in October: 6mi

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).

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Charlestown, Massachusetts, USA

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