Monthly 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

Weather in January

January, like December, in Indianapolis, Indiana, is another cold winter month, with average temperature ranging between max 33.4°F (0.8°C) and min 21°F (-6.1°C). January is the coldest month, with an average high-temperature of 33.4°F (0.8°C) and an average low-temperature of 21°F (-6.1°C). Weather in January »

Weather in February

February, the last month of the winter, in Indianapolis, is also a wintry month, with average temperature varying between 25.2°F (-3.8°C) and 38.3°F (3.5°C). In Indianapolis, the average high-temperature is relatively the same as in January - a still wintry 38.3°F (3.5°C). Weather in February »

Weather in March

The first month of the spring, March, is a fresh month in Indianapolis, Indiana, with average temperature fluctuating between 50°F (10°C) and 35.1°F (1.7°C). In Indianapolis, Indiana, the average high-temperature rises, from a wintry 38.3°F (3.5°C) in February, to a fresh 50°F (10°C). Weather in March »

Weather in April

April is a comfortable spring month in Indianapolis, Indiana, with temperature in the range of an average low of 45.1°F (7.3°C) and an average high of 61.5°F (16.4°C). 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). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Indianapolis, Indiana, with average temperature fluctuating between 71.8°F (22.1°C) and 55.6°F (13.1°C). In May, the average high-temperature increases, from a comfortable 61.5°F (16.4°C) in April, to a pleasant 71.8°F (22.1°C). Weather in May »

Weather in June

June, the first month of the summer, in Indianapolis, is a moderately hot month, with average temperature varying between 80.2°F (26.8°C) and 64°F (17.8°C). In June, the average high-temperature marginally rises, from an agreeable 71.8°F (22.1°C) in May, to a moderately hot 80.2°F (26.8°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Indianapolis, Indiana, with average temperature fluctuating between 66.2°F (19°C) and 82°F (27.8°C). July is the warmest month, with an average high-temperature of 82°F (27.8°C) and an average low-temperature of 66.2°F (19°C). In July, the average heat index is appraised at a tropical 88.9°F (31.6°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Indianapolis, Indiana, with average temperature ranging between max 81.1°F (27.3°C) and min 64°F (17.8°C). In August, the average high-temperature is practically the same as in July - a still moderately hot 81.1°F (27.3°C). Weather in August »

Weather in September

September, the first month of the autumn, in Indianapolis, is also a moderately hot month, with average temperature varying between 75.9°F (24.4°C) and 58.3°F (14.6°C). In September, the average high-temperature is essentially the same as in August - a still warm 75.9°F (24.4°C). Weather in September »

Weather in October

October, like September, in Indianapolis, Indiana, is another comfortable autumn month, with average temperature fluctuating between 63.1°F (17.3°C) and 47.3°F (8.5°C). In Indianapolis, the average high-temperature drops, from a warm 75.9°F (24.4°C) in September, to an enjoyable 63.1°F (17.3°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Indianapolis, Indiana, with average temperature fluctuating between 49.3°F (9.6°C) and 36.1°F (2.3°C). In November, the average high-temperature drops, from a comfortable 63.1°F (17.3°C) in October, to a chilly 49.3°F (9.6°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Indianapolis, Indiana, with temperature in the range of an average low of 28.2°F (-2.1°C) and an average high of 38.3°F (3.5°C). In Indianapolis, the average high-temperature in December decreases, from a chilly 49.3°F (9.6°C) in November, to a cold 38.3°F (3.5°C). Weather in December »
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FAQ

What is the coldest month in Indianapolis?

The coldest month in Indianapolis, Indiana, is January, with an average high-temperature of 33.4°F (0.8°C) and an average low-temperature of 21°F (-6.1°C).

How much does it rain in Indianapolis?

Throughout the year, in Indianapolis, there are 146.4 rainfall days, and 21.14" (537mm) of precipitation is accumulated.

When does it snow in Indianapolis?

January through April, November and December are months with snowfall in Indianapolis.

How much does it snow in Indianapolis?

Throughout the year, there are 28.1 snowfall days, and 7.87" (200mm) of snow is accumulated.

What is the month with the least sunshine in Indianapolis?

January has the least sunshine of the year in Indianapolis, with an average of 4.1h of sunshine.

When is the lowest UV index in Indianapolis?

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Indianapolis, Indiana.

What is the driest month in Indianapolis?

The month with the least rainfall in Indianapolis, Indiana, is February when the rain falls for 6.8 days and typically collects 1.22" (31mm) of precipitation.

What is the wettest month in Indianapolis?

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

When it does not snow in Indianapolis?

In Indianapolis snow does not fall in May through October.

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.

When are the longest days in Indianapolis?

June has the longest days of the year in Indianapolis, Indiana, with an average of 15h of daylight.

What is the warmest month in Indianapolis?

With an average high-temperature of 82°F (27.8°C) and an average low-temperature of 66.2°F (19°C), July is the warmest month in Indianapolis, Indiana.

What month has the most sunshine in Indianapolis?

July has the most sunshine of the year in Indianapolis, Indiana, with an average of 10.3h of sunshine.

What is the least humid month in Indianapolis?

With an average relative humidity of 73%, October is the least humid month.

What is the most humid month in Indianapolis?

December is the most humid month in Indianapolis, Indiana, with an average relative humidity of 82%.

What is the snowiest month in Indianapolis?

December is the month with the most snowfall in Indianapolis. Snow falls for 6.2 days and accumulates 2.28" (58mm) of snow.

What is the month with the shortest days in Indianapolis?

With an average of 9.4h of daylight, December has the shortest days of the year.

Average pressure
Indianapolis, IN

Average pressure - Indianapolis, IN

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

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Average wind speed
Indianapolis, IN

Average wind speed - Indianapolis, IN

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
Indianapolis, IN

Average humidity - Indianapolis, IN

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
Indianapolis, IN

Average rainfall - Indianapolis, IN

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
Indianapolis, IN

Average rainfall days - Indianapolis, IN

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
Indianapolis, IN

Average snowfall - Indianapolis, IN

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

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Average snowfall days
Indianapolis, IN

Average snowfall days - Indianapolis, IN

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).

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Average daylight / Average sunshine
Indianapolis, IN

Average daylight / Average sunshine - Indianapolis, IN

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

The month with the most sunshine is July (Average sunshine: 10.3h).
The month with the least sunshine is January (Average sunshine: 4.1h).

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Average sunshine days
Indianapolis, IN

Average sunshine days - Indianapolis, IN

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
Indianapolis, IN

Average UV index - Indianapolis, IN

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).

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Average visibility
Indianapolis, IN

Average visibility - Indianapolis, IN

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).

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