May weather forecast
Hebron, IL

Share

Weather in May

The last month of the spring, May, is a comfortable month in Hebron, Illinois, with an average temperature fluctuating between 48.4°F (9.1°C) and 66°F (18.9°C).

Temperature

As May begins, there is an increase in the average high-temperature, moving from a cool 53.8°F (12.1°C) in April to an enjoyable 66°F (18.9°C). An average low-temperature of 48.4°F (9.1°C) is expected during May.

Humidity

The average relative humidity in May in Hebron is 79%.

Rainfall

In Hebron, in May, during 15.7 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In Hebron, during the entire year, the rain falls for 121.6 days and collects up to 14.06" (357mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in Hebron. During 0.3 snowfall days, in May, Hebron aggregates 0.04" (1mm) of snow. In Hebron, during the entire year, snow falls for 46.4 days and aggregates up to 7.48" (190mm) of snow.

Daylight

The average length of the day in May is 14h and 38min.
On the first day of May in Hebron, Illinois, sunrise is at 5:47 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 8:23 pm CDT.

Sunshine

In Hebron, Illinois, the average sunshine in May is 8.5h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index in Hebron, Illinois. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 5 during May leads to these advisories:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. To cut down UV radiation exposure by about half, sport a wide-brim hat. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
[Resources]

Frequently asked questions

What are the temperatures in Hebron in May?

During May, Hebron experiences an average high-temperature of 66°F (18.9°C) and a low-temperature of 48.4°F (9.1°C).

What is the average humidity in May in Hebron?

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

How much does it rain in Hebron in May?

In Hebron, in May, during 15.7 rainfall days, 1.57" (40mm) of precipitation is typically accumulated.

What is the last month it snows in Hebron?

May is the last month it regularly snows in Hebron, Illinois. During 0.3 snowfall days, in May, Hebron aggregates 0.04" (1mm) of snow.

What is the average length of the day in May in Hebron?

The average day length in May in Hebron, Illinois, is 14h and 38min.

What time are sunrise and sunset in May in Hebron?

On the first day of May in Hebron, Illinois, sunrise is at 5:47 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 8:23 pm CDT.

How long on average sun shines in May in Hebron?

In Hebron, the average sunshine duration in May is 8.5h.

What are the months with the highest UV index in Hebron?

May through August, with an average maximum UV index of 5, are months with the highest UV index.

What is the UV index intensity in May in Hebron?

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

Average temperature in May
Hebron, IL

Average temperature in May - Hebron, IL
  • Average high temperature in May: 66°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (24.3°F).

  • Average low temperature in May: 48.4°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).

[Resources]

Average pressure in May
Hebron, IL

Average pressure in May - Hebron, IL
  • Average pressure in May: 29.96"Hg

The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

[Resources]

Average wind speed in May
Hebron, IL

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

The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

[Resources]

Average humidity in May
Hebron, IL

Average humidity in May - Hebron, IL
  • Average humidity in May: 79%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (76%).

[Resources]

Average rainfall in May
Hebron, IL

Average rainfall in May - Hebron, IL
  • Average rainfall in May: 1.57"

The wettest month (with the highest rainfall) is July (1.93").
The driest month (with the least rainfall) is December (0.55").

[Resources]

Average rainfall days in May
Hebron, IL

Average rainfall days in May - Hebron, IL
  • Average rainfall days in May: 15.7 days

The months with the highest number of rainy days are May and July (15.7 days).
The month with the least rainy days is January (2.8 days).

[Resources]

Average snowfall in May
Hebron, IL

Average snowfall in May - Hebron, IL
  • Average snowfall in May: 0.04"

The month with the highest snowfall is January (2.13").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in May
Hebron, IL

Average snowfall days in May - Hebron, IL
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

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

Average daylight in May / Average sunshine in May - Hebron, IL
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 8h and 3min

The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

[Resources]

Average sunshine days in May
Hebron, IL

Average sunshine days in May - Hebron, IL
  • Average sunshine days in May: 13.1 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (11.6 days).

[Resources]

Average UV index in May
Hebron, IL

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

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).

[Resources]

Average cloud cover in May
Hebron, IL

Average cloud cover in May - Hebron, IL
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 34).

[Resources]

Average visibility in May
Hebron, IL

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

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

[Resources]

Hebron, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location