May weather forecast
Tunnel Hill, IL

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Weather in May

May, the last month of the spring in Tunnel Hill, is a moderately hot month, with an average temperature ranging between min 57.9°F (14.4°C) and max 75.7°F (24.3°C).

Temperature

Tunnel Hill sees an increase in average high-temperatures during May, moving from an enjoyable 66.6°F (19.2°C) in April to a moderately hot 75.7°F (24.3°C). An average low-temperature of 57.9°F (14.4°C) is expected in Tunnel Hill during May.

Humidity

The months with the highest humidity in Tunnel Hill, Illinois, are March and May, with an average relative humidity of 79%.

Rainfall

In Tunnel Hill, in May, during 12.7 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. In Tunnel Hill, during the entire year, the rain falls for 118.3 days and collects up to 13.03" (331mm) of precipitation.

Snowfall

April through October are months without snowfall in Tunnel Hill.

Daylight

In May, the average length of the day is 14h and 13min.
On the first day of the month, sunrise is at 5:59 am and sunset at 7:45 pm. On the last day of May, sunrise is at 5:35 am and sunset at 8:10 pm CDT.

Sunshine

In May, the average sunshine is 9.1h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In May, the UV index of 6 transforms into the following advice:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
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Frequently asked questions

What are May temperatures in Tunnel Hill?

In Tunnel Hill, 75.7°F (24.3°C) is the average high-temperature and 57.9°F (14.4°C) is the average low-temperature during May.

What is the most humid month in Tunnel Hill?

The months with the highest humidity in Tunnel Hill are March and May, with an average relative humidity of 79%.

What is the average humidity in May in Tunnel Hill?

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

How many days does it rain in May in Tunnel Hill?

In Tunnel Hill, Illinois, in May, during 12.7 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.

When it does not snow in Tunnel Hill?

April through October are months without snowfall in Tunnel Hill.

How many hours of daylight does Tunnel Hill have in May?

In Tunnel Hill, the average day length in May is 14h and 13min.

What time are sunrise and sunset in May in Tunnel Hill?

On the first day of May, sunrise is at 5:59 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:10 pm CDT.

How long on average sun shines in May in Tunnel Hill?

The average sunshine duration in May in Tunnel Hill, Illinois, is 9.1h.

What are the months with the highest UV index in Tunnel Hill?

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

What is the UV index intensity in May in Tunnel Hill?

The average daily maximum UV index in May in Tunnel Hill is 6. A UV Index reading of 6 to 7 represents a high 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
Tunnel Hill, IL

Average temperature in May - Tunnel Hill, IL
  • Average high temperature in May: 75.7°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in May: 57.9°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).

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Average pressure in May
Tunnel Hill, IL

Average pressure in May - Tunnel Hill, 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).

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Average wind speed in May
Tunnel Hill, IL

Average wind speed in May - Tunnel Hill, IL
  • Average wind speed in May: 7.5mph

The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in May
Tunnel Hill, IL

Average humidity in May - Tunnel Hill, IL
  • Average humidity in May: 79%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in May
Tunnel Hill, IL

Average rainfall in May - Tunnel Hill, IL
  • Average rainfall in May: 1.34"

The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is September (0.47").

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Average rainfall days in May
Tunnel Hill, IL

Average rainfall days in May - Tunnel Hill, IL
  • Average rainfall days in May: 12.7 days

The month with the highest number of rainy days is July (13.1 days).
The months with the least rainy days are January, February and December (7.3 days).

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Average snowfall in May
Tunnel Hill, IL

Average snowfall in May - Tunnel Hill, IL
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in May
Tunnel Hill, IL

Average snowfall days in May - Tunnel Hill, 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 and September (0 days).

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Average daylight in May /
Average sunshine in May
Tunnel Hill, IL

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

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in May: 9h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

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Average sunshine days in May
Tunnel Hill, IL

Average sunshine days in May - Tunnel Hill, IL
  • Average sunshine days in May: 15.3 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (14.8 days).

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Average UV index in May
Tunnel Hill, IL

Average UV index in May - Tunnel Hill, 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 and December (UV index 2).

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Average cloud cover in May
Tunnel Hill, IL

Average cloud cover in May - Tunnel Hill, IL
  • Average cloud cover in May: 40

The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).

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Average visibility in May
Tunnel Hill, IL

Average visibility in May - Tunnel Hill, 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).

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Tunnel Hill, Illinois, USA

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