May weather forecast
New Haven, IL

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Weather in May

May, the last month of the spring in New Haven, is a warm month, with an average temperature ranging between min 58.3°F (14.6°C) and max 75.2°F (24°C).

Temperature

New Haven's transition into May is marked by a rise in the average high-temperature, advancing from an enjoyable 66°F (18.9°C) in April to a warm 75.2°F (24°C). Throughout May, an average low-temperature of 58.3°F (14.6°C) is expected.

Humidity

May and July, with an average relative humidity of 79%, are the most humid months in New Haven.

Rainfall

In New Haven, Illinois, in May, it is raining for 11.9 days, with typically 0.98" (25mm) of accumulated precipitation. In New Haven, during the entire year, the rain falls for 100.2 days and collects up to 8.7" (221mm) of precipitation.

Snowfall

In New Haven, snow does not fall in April through October.

Daylight

The average length of the day in May is 14h and 14min.
On the first day of the month, sunrise is at 5:55 am and sunset at 7:43 pm. On the last day of May, sunrise is at 5:31 am and sunset at 8:08 pm CDT.

Sunshine

The average sunshine in May is 9.2h.

UV index

The 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 vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 in May converts into the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for New Haven in May?

In New Haven, in May, the average high-temperature is 75.2°F (24°C), and the average low-temperature is 58.3°F (14.6°C).

What are the most humid months in New Haven?

The months with the highest humidity in New Haven, Illinois, are May and July, with an average relative humidity of 79%.

What is the average humidity in May in New Haven?

In May, the average relative humidity is 79%.

How much does it rain in New Haven in May?

In New Haven, Illinois, during May, the rain falls for 11.9 days and regularly aggregates up to 0.98" (25mm) of precipitation.

When it does not snow in New Haven?

April through October are months without snowfall.

How many hours of daylight does New Haven have in May?

In May, the average day length in New Haven, Illinois, is 14h and 14min.

When are sunrise and sunset in May in New Haven?

On the first day of May, sunrise is at 5:55 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:08 pm CDT.

How many hours of sunshine does New Haven have in May?

In New Haven, the average sunshine duration in May is 9.2h.

When is the highest UV index in New Haven?

May through August, with an average maximum UV index of 6, are months with the highest UV index in New Haven, Illinois.

What is the UV index reading in May in New Haven?

The average daily maximum UV index in May in New Haven, Illinois, is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
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
New Haven, IL

Average temperature in May - New Haven, IL
  • Average high temperature in May: 75.2°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.3°F).

  • Average low temperature in May: 58.3°F

The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in May
New Haven, IL

Average pressure in May - New Haven, IL
  • Average pressure in May: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
New Haven, IL

Average wind speed in May - New Haven, IL
  • Average wind speed in May: 8.3mph

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

Average humidity in May
New Haven, IL

Average humidity in May - New Haven, IL
  • Average humidity in May: 79%

The months with the highest relative humidity are May and July (79%).
The month with the lowest relative humidity is October (69%).

Average rainfall in May
New Haven, IL

Average rainfall in May - New Haven, IL
  • Average rainfall in May: 0.98"

The wettest month (with the highest rainfall) is April (1.06").
The driest month (with the least rainfall) is September (0.28").

Average rainfall days in May
New Haven, IL

Average rainfall days in May - New Haven, IL
  • Average rainfall days in May: 11.9 days

The month with the highest number of rainy days is May (11.9 days).
The month with the least rainy days is January (5 days).

Average snowfall in May
New Haven, IL

Average snowfall in May - New Haven, IL
  • Average snowfall in May: 0"

The months with the highest snowfall are January and February (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in May
New Haven, IL

Average snowfall days in May - New Haven, IL
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
New Haven, IL

Average daylight in May / Average sunshine in May - New Haven, IL
  • Average daylight in May: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in May: 9h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in May
New Haven, IL

Average sunshine days in May - New Haven, IL
  • Average sunshine days in May: 15.8 days

The month with the most sunshine days is October (23.4 days).
The month with the least sunshine days is May (15.8 days).

Average UV index in May
New Haven, IL

Average UV index in May - New Haven, IL
  • Average UV index in May: 6

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, November and December (UV index 2).

Average cloud cover in May
New Haven, IL

Average cloud cover in May - New Haven, IL
  • Average cloud cover in May: 38

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 27).

Average visibility in May
New Haven, IL

Average visibility in May - New Haven, IL
  • 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).

New Haven, Illinois, USA

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