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 in Indianapolis, Indiana, is a comfortable spring month, with average temperature varying between 45.1°F (7.3°C) and 61.5°F (16.4°C).

Temperature

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

Humidity

The average relative humidity in April is 76%.

Rainfall

In Indianapolis, Indiana, in April, during 14.3 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. In Indianapolis, during the entire year, the rain falls for 146.4 days and collects up to 21.14" (537mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. April is the last month it regularly snows in Indianapolis, Indiana. During 0.8 snowfall days, Indianapolis aggregates 0.12" (3mm) of snow. In Indianapolis, during the entire year, snow falls for 28.1 days, and aggregates up to 7.87" (200mm) of snow.

Daylight

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

Sunshine

The average sunshine is 7.2h.

UV index

In April, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 4 interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in April in Indianapolis?

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

What is the average humidity in April in Indianapolis?

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

How many days does it rain in April in Indianapolis?

In April, in Indianapolis, the rain falls for 14.3 days. Throughout April, 2.24" (57mm) of precipitation is accumulated.

What is the last month it snows in Indianapolis?

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

How many hours of daylight does Indianapolis have in April?

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

How long on average sun shines in April in Indianapolis?

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

What is the UV index reading in April in Indianapolis?

In April, the average daily maximum UV index in Indianapolis is 4. A UV Index reading of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV radiation.
Average temperature in April - Indianapolis, IN
  • Average high temperature in April: 16.4°C

The warmest month (with the highest average high temperature) is July (27.8°C).
The month with the lowest average high temperature is January (0.8°C).

  • Average low temperature in April: 7.3°C

The month with the highest average low temperature is July (19°C).
The coldest month (with the lowest average low temperature) is January (-6.1°C).

Average pressure in April - Indianapolis, IN
  • Average pressure in April: 1014.3mbar

The month with the highest atmospheric pressure is January (1020.6mbar).
The month with the lowest atmospheric pressure is June (1013.6mbar).

Average wind speed in April - Indianapolis, IN
  • Average wind speed in April: 15.2km/h

The windiest months (with the highest average wind speed) are January and February (15.8km/h).
The calmest month (with the lowest average wind speed) is August (9.2km/h).

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: 57mm

The wettest month (with the highest rainfall) is May (68mm).
The driest month (with the least rainfall) is February (31mm).

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: 3mm

The month with the highest snowfall is December (58mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

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: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).