May weather forecast
Springfield, IL

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The Abraham Lincoln House in Springfield, Illinois
The Abraham Lincoln House in Springfield, Illinois

Weather in May

As Springfield moves further into spring, May brings warmer days. The spell of comfortable warmth precedes the onset of summer. Thermometer readings advance into the 70s°F, making for quite a pleasant month overall. The city's parks and recreational areas become more active, inviting residents outdoors. There is a relative increase in rainfall, but it does not dampen the overall pleasant weather.

Temperature

The beginning of May in Springfield signals a rise in the average high-temperature, moving from an enjoyable 63.1°F (17.3°C) in April to a pleasant 72.9°F (22.7°C). Throughout the May nights, Springfield encounters a low-temperature of 56.3°F (13.5°C).

Humidity

The average relative humidity in May in Springfield is 77%.

Rainfall

In Springfield, in May, it is raining for 17.1 days, with typically 2.68" (68mm) of accumulated precipitation. In Springfield, during the entire year, the rain falls for 140.2 days and collects up to 23.27" (591mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In May, the average length of the day in Springfield is 14h and 23min.
On the first day of May, sunrise is at 5:57 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:20 pm CDT.

Sunshine

In May, the average sunshine in Springfield, Illinois, is 9.3h.

UV index

The average daily maximum UV index in May in Springfield is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 5 during May leads to these advisories:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
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Frequently asked questions

What is the average May temperature in Springfield?

The high-temperature, in May, in Springfield, records 72.9°F (22.7°C), while the low-temperature is 56.3°F (13.5°C).

What is the average humidity in May in Springfield?

In Springfield, Illinois, the average relative humidity in May is 77%.

How many days does it rain in May in Springfield?

In Springfield, Illinois, in May, during 17.1 rainfall days, 2.68" (68mm) of precipitation is typically accumulated.

When it does not snow in Springfield?

In Springfield, snow does not fall in May through October.

Does it snow in Springfield in May?

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

How many hours of daylight does Springfield have in May?

The average day length in May is 14h and 23min.

When is the sunrise / sunset in May in Springfield?

On the first day of May, sunrise is at 5:57 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:20 pm CDT.

How long on average sun shines in May in Springfield?

In May, the average sunshine duration in Springfield is 9.3h.

How high is the UV index in May in Springfield?

In Springfield, Illinois, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's 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
Springfield, IL

Average temperature in May - Springfield, IL
  • Average high temperature in May: 72.9°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in May: 56.3°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

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Average pressure in May
Springfield, IL

Average pressure in May - Springfield, IL
  • Average pressure in May: 29.95"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in May
Springfield, IL

Average wind speed in May - Springfield, IL
  • Average wind speed in May: 8.5mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

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Average humidity in May
Springfield, IL

Average humidity in May - Springfield, IL
  • Average humidity in May: 77%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in May
Springfield, IL

Average rainfall in May - Springfield, IL
  • Average rainfall in May: 2.68"

The wettest month (with the highest rainfall) is June (2.72").
The driest month (with the least rainfall) is December (1.18").

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Average rainfall days in May
Springfield, IL

Average rainfall days in May - Springfield, IL
  • Average rainfall days in May: 17.1 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is February (5.8 days).

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Average snowfall in May
Springfield, IL

Average snowfall in May - Springfield, IL
  • Average snowfall in May: 0"

The month with the highest snowfall is January (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
Springfield, IL

Average snowfall days in May - Springfield, IL
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Springfield, IL

Average daylight in May / Average sunshine in May - Springfield, IL
  • Average daylight in May: 14h 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 May: 9h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in May
Springfield, IL

Average sunshine days in May - Springfield, IL
  • Average sunshine days in May: 11.6 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.4 days).

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Average UV index in May
Springfield, IL

Average UV index in May - Springfield, IL
  • Average UV index in May: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in May
Springfield, IL

Average cloud cover in May - Springfield, IL
  • Average cloud cover in May: 38

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are June and September (Cloud cover 29).

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Average visibility in May
Springfield, IL

Average visibility in May - Springfield, IL
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).

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Springfield, Illinois, USA

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