Hartford
Connecticut, USA
Long-term weather forecast
Long-term weather forecast

October weather forecast and climate
Hartford, CT

Skyscape view of the city of Hartford, Connecticut, with the roads leading to the town, and trees on roadsides
Skyscape view of the city of Hartford, Connecticut, with the roads leading to the town, and trees on roadsides
October, like September, in Hartford, Connecticut, is another enjoyable autumn month, with average temperature fluctuating between 41.2°F (5.1°C) and 63.1°F (17.3°C).

Temperature

In Hartford, the average high-temperature in October drops, from a moderately hot 74.8°F (23.8°C) in September, to an enjoyable 63.1°F (17.3°C). In Hartford, Connecticut, the average low-temperature is 41.2°F (5.1°C).

Humidity

The average relative humidity in Hartford is 69.2%.

Rainfall

The month with the most rainfall is October when the rain falls for 10.2 days and typically aggregates up to 4.4" (111mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In October, the average length of the day is 11.1h.

Sunshine

In Hartford, the average sunshine is 6.4h.

UV index

In Hartford, the average daily maximum UV index in October is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV radiation for the average person.
Note: In October, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in October in Hartford?

In October, the average high-temperature is 63.1°F (17.3°C), and the average low-temperature is 41.2°F (5.1°C).

What is the average humidity in October in Hartford?

The average relative humidity in October in Hartford, Connecticut, is 69.2%.

How much does it rain in Hartford in October?

In Hartford, Connecticut, during October, the rain falls for 10.2 days and regularly aggregates up to 4.4" (111mm) of precipitation.

What is the rainiest month in Hartford?

October is the month with the most rainfall in Hartford, Connecticut. Rain falls for 10.2 days and accumulates 4.4" (111mm) of precipitation.

Does it snow in Hartford in October?

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

When it does not snow in Hartford?

In Hartford, Connecticut, snow does not fall in May through October.

How many hours of daylight does Hartford have in October?

In Hartford, Connecticut, the average length of the day in October is 11.1h.

How long on average sun shines in October in Hartford?

In Hartford, Connecticut, the average sunshine in October is 6.4h.

What is the UV index reading in October in Hartford?

In October, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV radiation.
Average temperature in October - Hartford, CT
  • Average high temperature in October: 63.1°F

The warmest month (with the highest average high temperature) is July (84.5°F).
The month with the lowest average high temperature is January (34.5°F).

  • Average low temperature in October: 41.1°F

The month with the highest average low temperature is July (62.7°F).
The coldest month (with the lowest average low temperature) is January (17.7°F).

Average humidity in October - Hartford, CT
  • Average humidity in October: 69.2%

The month with the highest relative humidity is September (72.9%).
The month with the lowest relative humidity is April (58%).

Average rainfall in October - Hartford, CT
  • Average rainfall in October: 4.4"

Wettest months (with the highest rainfall) are May, June and October (4.4").
The driest month (with the lowest rainfall) is February (2.9").

Average rainfall days in October - Hartford, CT
  • Average rainfall days in October: 10.2 days

The month with the highest number of rainy days is May (12.8 days).
The month with the lowest number of rainy days is February (9.7 days).

Average snowfall in October - Hartford, CT
  • Average snowfall in October: 0"

The month with the highest snowfall is January (12.3").
Months with the lowest snowfall are May, June, July, August, September and October (0").

Average snowfall days in October - Hartford, CT
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is January (5.8 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

Average daylight in October / Average sunshine in October - Hartford, CT
  • Average daylight in October: 11.1h

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.2h).

  • Average sunshine in October: 6.4h

The month with most sunshine is July (Average sunshine: 9.5h).
The month with least sunshine is December (Average sunshine: 4.5h).

Average UV index in October - Hartford, CT
  • Average UV index in October: 4

Months with the highest UV index are June, July and August (UV index 8).
Months with the lowest UV index are January and December (UV index 1).