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

April 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
April in Hartford, Connecticut, is a mild spring month, with average temperature ranging between min 38.5°F (3.6°C) and max 60.4°F (15.8°C).

Temperature

In April, the average high-temperature increases, from a frosty 47.7°F (8.7°C) in March, to a mild 60.4°F (15.8°C). The average low-temperature, in April, is 38.5°F (3.6°C).

Humidity

The least humid month is April, with an average relative humidity of 58%.

Rainfall

In April, in Hartford, the rain falls for 11.2 days. Throughout April, 3.7" (94.5mm) of precipitation is accumulated. In Hartford, during the entire year, the rain falls for 130 days and collects up to 45.9" (1164.6mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Hartford.

Daylight

The average length of the day in April is 13.4h.

Sunshine

In April, the average sunshine in Hartford is 7.6h.

UV index

In April, the average daily maximum UV index in Hartford, Connecticut, is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to the Sun's UV rays for the ordinary person.
The average daily UV index of 6 in April transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in April in Hartford?

In Hartford, Connecticut, in April, the average high-temperature is 60.4°F (15.8°C), and the average low-temperature is 38.5°F (3.6°C).

What is the least humid month in Hartford?

The least humid month in Hartford is April, with an average relative humidity of 58%.

What is the average humidity in April in Hartford?

The average relative humidity in April is 58%.

How many days does it rain in April in Hartford?

In Hartford, in April, it is raining for 11.2 days, with typically 3.7" (94.5mm) of accumulated precipitation.

What is the last month it snows in Hartford?

April is the last month it regularly snows in Hartford, Connecticut. During 0.5 snowfall days, in April, Hartford aggregates 1.4" (35.6mm) of snow.

How many hours of daylight does Hartford have in April?

The average length of the day in April in Hartford is 13.4h.

How many hours of sunshine does Hartford have in April?

In April, the average sunshine in Hartford is 7.6h.

What is the UV index intensity in April in Hartford?

In Hartford, Connecticut, the average daily maximum UV index in April is 6. A UV Index of 6 to 7 symbolizes a high health threat from unsafe exposure to the Sun's UV rays.
Average temperature in April - Hartford, CT
  • Average high temperature in April: 15.8°C

The warmest month (with the highest average high temperature) is July (29.2°C).
The month with the lowest average high temperature is January (1.4°C).

  • Average low temperature in April: 3.6°C

The month with the highest average low temperature is July (17.1°C).
The coldest month (with the lowest average low temperature) is January (-7.9°C).

Average humidity in April - Hartford, CT
  • Average humidity in April: 58%

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

Average rainfall in April - Hartford, CT
  • Average rainfall in April: 94.5mm

The wettest month (with the highest rainfall) is October (111mm).
The driest month (with the lowest rainfall) is February (73.4mm).

Average rainfall days in April - Hartford, CT
  • Average rainfall days in April: 11.2 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 April - Hartford, CT
  • Average snowfall in April: 35.6mm

The month with the highest snowfall is January (312.4mm).
Months with the lowest snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in April - Hartford, CT
  • Average snowfall days in April: 0.5 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 April / Average sunshine in April - Hartford, CT
  • Average daylight in April: 13.4h

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 April: 7.6h

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 April - Hartford, CT
  • Average UV index in April: 6

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).