October weather forecast
Watertown, MA

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Weather in October

October, like September, in Watertown, Massachusetts, is another refreshing autumn month, with an average temperature ranging between max 61°F (16.1°C) and min 47.3°F (8.5°C).

Temperature

The arrival of October corresponds with a shift in temperature, down from a pleasant 73°F (22.8°C) in September to a comfortable 61°F (16.1°C). An average minimum temperature of 47.3°F (8.5°C) is recorded in Watertown during the month of October.

Humidity

The average relative humidity in October is 76%.

Rainfall

In October, the rain falls for 6.9 days. Throughout October, 0.51" (13mm) of precipitation is accumulated. Throughout the year, there are 85.9 rainfall days, and 5.87" (149mm) of precipitation is accumulated.

Snowfall

June through October are months without snowfall.

Daylight

The average length of the day in October in Watertown 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, sunrise is at 7:17 am and sunset at 5:38 pm EDT.

Sunshine

In Watertown, the average sunshine in October is 6.1h.

UV index

In October, the average daily maximum UV index in Watertown, Massachusetts, is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 3 in October interprets into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.

Frequently asked questions

What are the temperatures in October?

The high-temperature, in October, in Watertown, records 61°F (16.1°C), while the low-temperature is 47.3°F (8.5°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, in August is computed to be 84.2°F (29°C).

What is the average humidity in October?

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

How much does it rain in October?

In Watertown, in October, during 6.9 rainfall days, 0.51" (13mm) of precipitation is typically accumulated.

When it does not snow?

In Watertown, snow does not fall in June through October.

Does it snow in October?

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

What is the average length of the day in October?

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

When is the sunrise / sunset in October?

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

How long on average sun shines in October?

In Watertown, the average sunshine duration in October is 6.1h.

How high is the UV index in October?

In October, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
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
Watertown, MA

Average temperature in October - Watertown, MA
  • Average high temperature in October: 61°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 (33.6°F).

  • Average low temperature in October: 47.3°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 in October
Watertown, MA

Average pressure in October - Watertown, MA
  • Average pressure in October: 30.01"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 in October
Watertown, MA

Average wind speed in October - Watertown, MA
  • Average wind speed in October: 7.6mph

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 in October
Watertown, MA

Average humidity in October - Watertown, 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 (70%).

Average rainfall in October
Watertown, MA

Average rainfall in October - Watertown, MA
  • Average rainfall in October: 0.51"

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 in October
Watertown, MA

Average rainfall days in October - Watertown, MA
  • Average rainfall days in October: 6.9 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 in October
Watertown, MA

Average snowfall in October - Watertown, MA
  • Average snowfall in October: 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 in October
Watertown, MA

Average snowfall days in October - Watertown, MA
  • Average snowfall days in October: 0.1 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 in October /
Average sunshine in October
Watertown, MA

Average daylight in October / Average sunshine in October - Watertown, 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 1min

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 in October
Watertown, MA

Average sunshine days in October - Watertown, MA
  • Average sunshine days in October: 21.7 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 in October
Watertown, MA

Average UV index in October - Watertown, 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).

Average cloud cover in October
Watertown, MA

Average cloud cover in October - Watertown, MA
  • Average cloud cover in October: 43

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 in October
Watertown, MA

Average visibility in October - Watertown, 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).

Watertown, Massachusetts, USA

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