May 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
May, the last month of the spring, in Indianapolis, is an agreeable month, with average temperature varying between 71.8°F (22.1°C) and 55.6°F (13.1°C).

Temperature

In Indianapolis, the average high-temperature rises, from a comfortable 61.5°F (16.4°C) in April, to a pleasant 71.8°F (22.1°C). In May, the average low-temperature is 55.6°F (13.1°C).

Humidity

The average relative humidity in May is 79%.

Rainfall

May is the month with the most rainfall in Indianapolis. Rain falls for 17.6 days and accumulates 2.68" (68mm) of precipitation.

Snowfall

May through October are months without snowfall in Indianapolis, Indiana.

Daylight

In Indianapolis, the average length of the day in May is 14.4h.

Sunshine

In May, the average sunshine in Indianapolis is 8.8h.

UV index

Months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in May in Indianapolis?

In Indianapolis, Indiana, in May, the average high-temperature is 71.8°F (22.1°C), and the average low-temperature is 55.6°F (13.1°C).

What is the average humidity in May in Indianapolis?

In May, the average relative humidity in Indianapolis is 79%.

How much does it rain in Indianapolis in May?

In Indianapolis, in May, it is raining for 17.6 days, with typically 2.68" (68mm) of accumulated precipitation.

What is the rainiest month in Indianapolis?

The month with the most rainfall in Indianapolis, Indiana, is May when the rain falls for 17.6 days and typically aggregates up to 2.68" (68mm) of precipitation.

Does it snow in Indianapolis in May?

In May, it doesn't snow. April is the latest month when it typically snows.

When it does not snow in Indianapolis?

In Indianapolis snow does not fall in May through October.

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

The average length of the day in May in Indianapolis, Indiana, is 14.4h.

How many hours of sunshine does Indianapolis have in May?

The average sunshine in May in Indianapolis is 8.8h.

What is the month with the highest UV index in Indianapolis?

Months with the highest UV index are May through August, with an average maximum UV index of 6.

How high is the UV index in May in Indianapolis?

In Indianapolis, Indiana, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV rays.
Average temperature in May - Indianapolis, IN
  • Average high temperature in May: 71.8°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 May: 55.6°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 May - Indianapolis, IN
  • Average pressure in May: 29.97"

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 May - Indianapolis, IN
  • Average wind speed in May: 7.8mph

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 May - Indianapolis, IN
  • Average humidity in May: 79%

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

Average rainfall in May - Indianapolis, IN
  • Average rainfall in May: 2.68"

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 May - Indianapolis, IN
  • Average rainfall days in May: 17.6 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 May - Indianapolis, IN
  • Average snowfall in May: 0"

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 May - Indianapolis, IN
  • Average snowfall days in May: 0.1 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 May / Average sunshine in May - Indianapolis, IN
  • Average daylight in May: 14.4h

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 May: 8.8h

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 May - Indianapolis, IN
  • Average sunshine days in May: 11.1 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 May - Indianapolis, IN
  • Average UV index in May: 6

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 May - Indianapolis, IN
  • Average cloud cover in May: 41

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 May - Indianapolis, IN
  • Average visibility in May: 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).