May weather forecast
Zionsville, IN

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Weather in May

The last month of the spring, May, is a pleasant month in Zionsville, Indiana, with an average temperature varying between 55°F (12.8°C) and 71.6°F (22°C).

Temperature

With the onset of May, Zionsville experiences a temperature shift, with the average high-temperature moving from a moderate 60.6°F (15.9°C) in April to a pleasant 71.6°F (22°C). The average temperature during May nights is registered at a fresh 55°F (12.8°C).

Humidity

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

Rainfall

May is the month with the most rainfall. Rain falls for 15.5 days and accumulates 1.46" (37mm) of precipitation.

Snowfall

In Zionsville, snow does not fall in May through September.

Daylight

The average length of the day in May is 14h and 24min.
On the first day of May, sunrise is at 6:44 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 9:07 pm EDT.

Sunshine

The average sunshine in May is 8.6h.

UV index

The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: In May, a regular UV index of 5 translates into these guidelines:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.

Frequently asked questions

What is the usual temperature for Zionsville in May?

The average high-temperature, in May, in Zionsville, is 71.6°F (22°C), while the average low-temperature is 55°F (12.8°C).

What is the average humidity in May?

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

What is the rainiest month?

May is the month with the most rainfall. Rain falls for 15.5 days and accumulates 1.46" (37mm) of precipitation.

How much does it rain in May?

In Zionsville, during May, the rain falls for 15.5 days and regularly aggregates up to 1.46" (37mm) of precipitation.

When it does not snow in Zionsville?

In Zionsville, snow does not fall in May through September.

Does it snow in May?

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

What is the average length of the day in May?

In May, the average day length in Zionsville, Indiana, is 14h and 24min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:44 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 9:07 pm EDT.

How many hours of sunshine does Zionsville have in May?

In May, the average sunshine duration is 8.6h.

What is the UV index reading in May?

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Zionsville, IN

Average temperature in May - Zionsville, IN
  • Average high temperature in May: 71.6°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.2°F).

  • Average low temperature in May: 55°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in May
Zionsville, IN

Average pressure in May - Zionsville, IN
  • Average pressure in May: 29.97"Hg

The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in May
Zionsville, IN

Average wind speed in May - Zionsville, IN
  • Average wind speed in May: 8.2mph

The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in May
Zionsville, IN

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

The month with the highest relative humidity is December (83%).
The month with the lowest relative humidity is October (74%).

Average rainfall in May
Zionsville, IN

Average rainfall in May - Zionsville, IN
  • Average rainfall in May: 1.46"

The wettest month (with the highest rainfall) is May (1.46").
The driest month (with the least rainfall) is February (0.67").

Average rainfall days in May
Zionsville, IN

Average rainfall days in May - Zionsville, IN
  • Average rainfall days in May: 15.5 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (5.9 days).

Average snowfall in May
Zionsville, IN

Average snowfall in May - Zionsville, IN
  • Average snowfall in May: 0"

The month with the highest snowfall is January (1.06").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Zionsville, IN

Average snowfall days in May - Zionsville, IN
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Zionsville, IN

Average daylight in May / Average sunshine in May - Zionsville, IN
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in May: 8h and 4min

The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in May
Zionsville, IN

Average sunshine days in May - Zionsville, IN
  • Average sunshine days in May: 11.8 days

The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is May (11.8 days).

Average UV index in May
Zionsville, IN

Average UV index in May - Zionsville, IN
  • Average UV index in May: 5

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in May
Zionsville, IN

Average cloud cover in May - Zionsville, IN
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in May
Zionsville, IN

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

Zionsville, Indiana, USA

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