October weather forecast
Watertown, CT

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Weather in October

October, like September, in Watertown, Connecticut, is another comfortable autumn month, with an average temperature ranging between min 46.6°F (8.1°C) and max 61°F (16.1°C).

Temperature

The decrease of average high-temperatures is mild in October, with a decline from an agreeable 73.2°F (22.9°C) in September to a comfortable 61°F (16.1°C). Watertown experiences an average temperature drop to a chilly 46.6°F (8.1°C) during October nights.

Humidity

In Watertown, Connecticut, the average relative humidity in October is 78%.

Rainfall

In Watertown, in October, it is raining for 14.4 days, with typically 3.43" (87mm) of accumulated precipitation. In Watertown, Connecticut, during the entire year, the rain falls for 158.5 days and collects up to 34.57" (878mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 0.5 snowfall days, it receives 0.39" (10mm) of snow. In Watertown, during the entire year, snow falls for 34.9 days and aggregates up to 20.35" (517mm) of snow.

Daylight

In October, the average length of the day is 11h and 5min.
On the first day of October, sunrise is at 6:50 am and sunset at 6:33 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:48 pm EDT.

Sunshine

In Watertown, the average sunshine in October is 5.7h.

UV index

The average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 3 in October converts into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Feb 10, 2024 | Published by: Weather U.S. | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What are October temperatures in Watertown?

Watertown in October has an average high-temperature of 61°F (16.1°C) and an average low-temperature of 46.6°F (8.1°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is calculated to be 84.2°F (29°C).

What is the average humidity in October in Watertown?

In Watertown, Connecticut, the average relative humidity in October is 78%.

How much does it rain in Watertown in October?

In Watertown, Connecticut, in October, it is raining for 14.4 days, with typically 3.43" (87mm) of accumulated precipitation.

When does it start to snow in Watertown?

October is the first month it typically snows in Watertown. Throughout October, in the average 0.5 snowfall days, it receives 0.39" (10mm) of snow.

How many hours of daylight does Watertown have in October?

In October, the average day length in Watertown is 11h and 5min.

When are sunrise and sunset in October in Watertown?

In October, on the first day of the month, sunrise is at 6:50 am and sunset at 6:33 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:48 pm EDT.

How many hours of sunshine does Watertown have in October?

In October, the average sunshine duration in Watertown is 5.7h.

What is the UV index reading in October in Watertown?

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

Average temperature in October
Watertown, CT

Average temperature in October - Watertown, CT
  • Average high temperature in October: 61°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.3°F).

  • Average low temperature in October: 46.6°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).

Average pressure in October
Watertown, CT

Average pressure in October - Watertown, CT
  • Average pressure in October: 30.01"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in October
Watertown, CT

Average wind speed in October - Watertown, CT
  • Average wind speed in October: 7mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity in October
Watertown, CT

Average humidity in October - Watertown, CT
  • Average humidity in October: 78%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (72%).

Average rainfall in October
Watertown, CT

Average rainfall in October - Watertown, CT
  • Average rainfall in October: 3.43"

The wettest month (with the highest rainfall) is December (3.78").
The driest month (with the least rainfall) is September (2.13").

Average rainfall days in October
Watertown, CT

Average rainfall days in October - Watertown, CT
  • Average rainfall days in October: 14.4 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in October
Watertown, CT

Average snowfall in October - Watertown, CT
  • Average snowfall in October: 0.39"

The month with the highest snowfall is February (5.39").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
Watertown, CT

Average snowfall days in October - Watertown, CT
  • Average snowfall days in October: 0.5 days

The month with the highest number of snowfall days is February (9.2 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, CT

Average daylight in October / Average sunshine in October - Watertown, CT
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in October: 5h and 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in October
Watertown, CT

Average sunshine days in October - Watertown, CT
  • Average sunshine days in October: 14.7 days

The month with the most sunshine days is January (18.1 days).
The month with the least sunshine days is June (11.1 days).

Average UV index in October
Watertown, CT

Average UV index in October - Watertown, CT
  • 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, CT

Average cloud cover in October - Watertown, CT
  • Average cloud cover in October: 44

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in October
Watertown, CT

Average visibility in October - Watertown, CT
  • Average visibility in October: 6mi

The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).

Watertown, Connecticut, USA

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