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

A rise in the average high-temperature is observed during April, moving from a fresh 50°F (10°C) in March to a refreshing 61.5°F (16.4°C). During the month of April, the temperature falls to an average of 45.1°F (7.3°C).

Humidity

The average relative humidity in April is 76%.

Rainfall

In Indianapolis, in April, during 14.3 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, there are 146.4 rainfall days, and 21.14" (537mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in April is 13h and 17min.
On the first day of April, 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.

Sunshine

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

UV index

In April, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: During April, 4 as the daily maximum UV index converts into the following advice:
Heed the precautions - It is counselled to guard against solar damage. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.

Frequently asked questions

What are April temperatures?

April temperatures vary between a high-temperature of 61.5°F (16.4°C) and a low-temperature of 45.1°F (7.3°C).

What is the average humidity in April?

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

How much does it rain in April?

In Indianapolis, 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?

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, the average day length in April is 13h and 17min.

When is the sunrise / sunset in April?

In April, on the first day of the month, 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 many hours of sunshine does Indianapolis have in April?

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

How high is the UV index in April?

In April, the average daily maximum UV index in Indianapolis is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to 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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Indianapolis, Indiana, USA

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