April weather forecast and climate
Indianapolis, IN

The magnificent Monument Circle in Indianapolis, Indiana with the surrounding cityscape
The magnificent Monument Circle in Indianapolis, Indiana with the surrounding cityscape
April is a comfortable spring month in Indianapolis, Indiana, with temperature in the range of an average low of 45.1°F (7.3°C) and an average high of 61.5°F (16.4°C).

Temperature

In April, the average high-temperature rises, from a cool 50°F (10°C) in March, to an enjoyable 61.5°F (16.4°C). The average low-temperature, in Indianapolis, is 45.1°F (7.3°C).

Humidity

The average relative humidity in Indianapolis is 76%.

Rainfall

In Indianapolis, during April, the rain falls for 14.3 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, there are 146.4 rainfall days, and 21.14" (537mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall in Indianapolis. April is the last month it regularly snows. During 0.8 snowfall days, Indianapolis aggregates 0.12" (3mm) of snow. Throughout the year, in Indianapolis, there are 28.1 snowfall days, and 7.87" (200mm) of snow is accumulated.

Daylight

In April, the average length of the day in Indianapolis is 13.3h.

Sunshine

In Indianapolis, the average sunshine in April is 7.2h.

UV index

The average daily maximum UV index in April 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 ordinary person.
Note: In April, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 Indianapolis?

The average high-temperature, in April, in Indianapolis, Indiana, is 61.5°F (16.4°C), while the average low-temperature is 45.1°F (7.3°C).

What is the average humidity in April in Indianapolis?

In Indianapolis, Indiana, the average relative humidity in April is 76%.

How much does it rain in Indianapolis in April?

In Indianapolis, Indiana, during April, the rain falls for 14.3 days and regularly aggregates up to 2.24" (57mm) of precipitation.

What is the last month it snows in Indianapolis?

April is the last month it regularly snows. During 0.8 snowfall days, in April, Indianapolis aggregates 0.12" (3mm) of snow.

What is the average length of the day in April in Indianapolis?

In April, the average length of the day in Indianapolis, Indiana, is 13.3h.

How long on average sun shines in April in Indianapolis?

The average sunshine in April is 7.2h.

What is the UV index intensity in April in Indianapolis?

The average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a medium health risk from the exposure to the Sun's UV rays.
Average temperature in April - Indianapolis, IN
  • Average high temperature in April: 61.5°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in April: 45.1°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (21°F).

Average pressure in April - Indianapolis, IN
  • Average pressure in April: 29.95"

The month with the highest atmospheric pressure is January (30.14").
The month with the lowest atmospheric pressure is June (29.93").

Average wind speed in April - Indianapolis, IN
  • Average wind speed in April: 9.4mph

The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in April - Indianapolis, IN
  • Average humidity in April: 76%

The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (73%).

Average rainfall in April - Indianapolis, IN
  • Average rainfall in April: 2.24"

The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is February (1.22").

Average rainfall days in April - Indianapolis, IN
  • Average rainfall days in April: 14.3 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (6.8 days).

Average snowfall in April - Indianapolis, IN
  • Average snowfall in April: 0.12"

The month with the highest snowfall is December (2.28").
Months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in April - Indianapolis, IN
  • Average snowfall days in April: 0.8 days

The month with the highest number of snowfall days is January (7.9 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in April / Average sunshine in April - Indianapolis, IN
  • Average daylight in April: 13.3h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in April: 7.2h

The month with the most sunshine is July (Average sunshine: 10.3h).
The month with the least sunshine is January (Average sunshine: 4.1h).

Average sunshine days in April - Indianapolis, IN
  • Average sunshine days in April: 13.8 days

The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is May (11.1 days).

Average UV index in April - Indianapolis, IN
  • Average UV index in April: 4

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January, February, October, November and December (UV index 2).

Average cloud cover in April - Indianapolis, IN
  • Average cloud cover in April: 45

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in April - Indianapolis, IN
  • Average visibility in April: 6mi

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