October weather forecast
Waterbury, CT

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Weather in October

October brings a crisp chill in the air as temperatures recede to range between 46.6°F (8.1°C) and 61°F (16.1°C). The rich kaleidoscope of Fall colors is at its peak, painting a picturesque view of Waterbury. Maple, oak, and birch trees exhibit vibrant shades of red, yellow, and orange, transforming the city into a canvas of warm hues. Autumn's chill prepares the city for the impending winter.

Temperature

The onset of October introduces a moderate change in Waterbury's weather, with average high-temperatures falling from September's pleasant 73.2°F (22.9°C) to a refreshing 61°F (16.1°C). The temperature dips to an average of 46.6°F (8.1°C) during October nights.

Humidity

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

Rainfall

In Waterbury, during October, the rain falls for 14.4 days and regularly aggregates up to 3.43" (87mm) of precipitation. In Waterbury, during the entire year, the rain falls for 158.5 days and collects up to 34.57" (878mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Waterbury. 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 Waterbury, during the entire year, snow falls for 34.9 days and aggregates up to 20.35" (517mm) of snow.

Daylight

The average length of the day in October is 11h and 5min.
On the first day of the month, sunrise is at 6:49 am and sunset at 6:33 pm. On the last day of October, sunrise is at 7:23 am and sunset at 5:47 pm EDT.

Sunshine

The average sunshine in October is 5.7h.

UV index

In October, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: A daily high UV index of 3 in October leads to these guidelines:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

What are October temperatures in Waterbury?

The high-temperature, in October, in Waterbury, records 61°F (16.1°C), while the low-temperature is 46.6°F (8.1°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, is estimated at 84.2°F (29°C).

What is the average humidity in October?

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

How many days does it rain in October?

In Waterbury, in October, during 14.4 rainfall days, 3.43" (87mm) of precipitation is typically accumulated.

When does it start snowing?

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

How many hours of daylight does Waterbury have in October?

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

When is the sunrise / sunset in October?

In October, on the first day of the month, sunrise is at 6:49 am and sunset at 6:33 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:47 pm EDT.

How long on average sun shines in October?

The average sunshine duration in October in Waterbury is 5.7h.

How high is the UV index in October?

The average daily maximum UV index in October is 3. A UV Index reading 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
Waterbury, CT

Average temperature in October - Waterbury, 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
Waterbury, CT

Average pressure in October - Waterbury, 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
Waterbury, CT

Average wind speed in October - Waterbury, 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
Waterbury, CT

Average humidity in October - Waterbury, 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
Waterbury, CT

Average rainfall in October - Waterbury, 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
Waterbury, CT

Average rainfall days in October - Waterbury, 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
Waterbury, CT

Average snowfall in October - Waterbury, 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
Waterbury, CT

Average snowfall days in October - Waterbury, 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
Waterbury, CT

Average daylight in October / Average sunshine in October - Waterbury, 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
Waterbury, CT

Average sunshine days in October - Waterbury, 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
Waterbury, CT

Average UV index in October - Waterbury, 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
Waterbury, CT

Average cloud cover in October - Waterbury, 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
Waterbury, CT

Average visibility in October - Waterbury, 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).

Waterbury, Connecticut, USA

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