April weather forecast
Indianapolis, IN

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The magnificent Monument Circle in Indianapolis, Indiana with the surrounding cityscape
The magnificent Monument Circle in Indianapolis, Indiana with the surrounding cityscape

Weather in April

The arrival of April signals the arrival of spring in full bloom across Indianapolis. Temperatures, more agreeable now, swing between 61.5°F (16.4°C) to a minimum of 45.1°F (7.3°C). The snow has completely retreated leaving greenery in its wake. The cityscape transforms as if shedding its winter skin, revealing a vibrant, blooming spectacle. It is truly a great time to visit and enjoy the blossoming attractions of the city.

Temperature

April signals a shift in the average high-temperature, moving from March's cool 50°F (10°C) to a comfortable 61.5°F (16.4°C). In the month of April, Indianapolis records a consistent average low-temperature of 45.1°F (7.3°C).

Humidity

In Indianapolis, the average relative humidity in April 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, in Indianapolis, 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, Indiana. April is the last month it regularly snows in Indianapolis. During 0.8 snowfall days, in April, 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 13h and 17min.
On the first day of the month, sunrise is at 7:27 am and sunset at 8:09 pm. On the last day of April, in Indianapolis, sunrise is at 6:45 am and sunset at 8:38 pm EDT.

Sunshine

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

UV index

In Indianapolis, the average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 4 in April translates into these instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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Frequently asked questions

What is the average April temperature in Indianapolis?

The average high-temperature, in April, in Indianapolis, 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 April, the average relative humidity in Indianapolis 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 in Indianapolis. 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 Indianapolis, the average day length in April is 13h and 17min.

When is the sunrise / sunset in April in Indianapolis?

On the first day of April in Indianapolis, Indiana, sunrise is at 7:27 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 8:38 pm EDT.

How long on average sun shines in April in Indianapolis?

The average sunshine duration in April is 7.2h.

What is the UV index reading in April in Indianapolis?

In Indianapolis, Indiana, the average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Indianapolis, IN

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).

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Average pressure in April
Indianapolis, IN

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

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

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Average wind speed in April
Indianapolis, IN

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).

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Average humidity in April
Indianapolis, IN

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%).

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Average rainfall in April
Indianapolis, IN

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").

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Average rainfall days in April
Indianapolis, IN

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).

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Average snowfall in April
Indianapolis, IN

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

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

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Average snowfall days in April
Indianapolis, IN

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).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in April /
Average sunshine in April
Indianapolis, IN

Average daylight in April / Average sunshine in April - Indianapolis, IN
  • Average daylight in April: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in April: 7h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in April
Indianapolis, IN

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).

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Average UV index in April
Indianapolis, IN

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

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

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Average cloud cover in April
Indianapolis, IN

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).

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Average visibility in April
Indianapolis, IN

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

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

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Indianapolis, Indiana, USA

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