Indianapolis
Indiana, USA
Long-term weather forecast
Long-term weather forecast

April weather forecast and climate
Indianapolis, IN

The magnificent Monument Circle in Indianapolis, Indiana with the surrounding cityscape, and a perfect blue night sky
The magnificent Monument Circle in Indianapolis, Indiana with the surrounding cityscape, and a perfect blue night sky
April sees an increase in rainfall to 3.8" (96.5mm) as the unpredictable spring season spreads its wings over Indianapolis. The weather warms up to average 43°F (6.1°C) to 63°F (17.2°C) and the shoulder season is a blessing for budget travelers due to the temperate conditions.
April is the least humid month and has the clearest skies of the year, which adds to the comfort due to the daily sunlight of 7 hours. The snow disappears from the ground, and the icy rivers and creeks abound with freshwater.
Warm jackets and long pants keep any lingering cold at bay!

What is the temperature in April in Indianapolis?

In April, the average high-temperature is 63.3°F (17.4°C), and the average low-temperature is 42.6°F (5.9°C).

What is the least humid month in Indianapolis?

The least humid month in Indianapolis, Indiana, is April, with an average relative humidity of 65.6%.

What is the average humidity in April in Indianapolis?

In Indianapolis, Indiana, the average relative humidity in April is 65.6%.

How much does it rain in Indianapolis in April?

In April, in Indianapolis, Indiana, the rain falls for 12 days. Throughout April, 3.8" (96.8mm) of precipitation is accumulated.

What is the last month it snows in Indianapolis?

April is the last month it regularly snows in Indianapolis. During 0.4 snowfall days, in April, Indianapolis aggregates 0.2" (5.1mm) of snow.

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

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

What is the UV index intensity in April in Indianapolis?

In April, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health threat from the exposure to the Sun's UV radiation.
Average temperature in April - Indianapolis, IN
  • Average high temperature in April: 63.4°F

The warmest month (with the highest average high temperature) is July (85°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in April: 42.7°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

Average humidity in April - Indianapolis, IN
  • Average humidity in April: 65.6%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is April (65.6%).

Average rainfall in April - Indianapolis, IN
  • Average rainfall in April: 3.8"

The wettest month (with the highest rainfall) is May (5.1").
The driest month (with the lowest rainfall) is February (2.3").

Average rainfall days in April - Indianapolis, IN
  • Average rainfall days in April: 12 days

The month with the highest number of rainy days is May (13.1 days).
The month with the lowest number of rainy days is September (8.1 days).

Average snowfall in April - Indianapolis, IN
  • Average snowfall in April: 0.2"

The month with the highest snowfall is January (8.6").
Months with the lowest snowfall are May, June, July, August and September (0").

Average snowfall days in April - Indianapolis, IN
  • Average snowfall days in April: 0.4 days

The month with the highest number of snowfall days is January (7.5 days).
Months with the lowest number of snowfall days are May, 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 shortest days is December (Average daylight: 9.4h).

  • Average sunshine in April: 7.2h

The month with most sunshine is June (Average sunshine: 9.6h).
The month with least sunshine is December (Average sunshine: 3.3h).

Average UV index in April - Indianapolis, IN
  • Average UV index in April: 6

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January, November and December (UV index 2).