May weather forecast
Buffalo Grove, IL

Share

Weather in May

The last month of the spring, May, is an enjoyable month in Buffalo Grove, Illinois, with temperature in the range of an average low of 50.5°F (10.3°C) and an average high of 65.8°F (18.8°C).

Temperature

As Buffalo Grove transitions into May, a rise in the average high-temperature is observed, moving from a cool 54.1°F (12.3°C) in April to a refreshing 65.8°F (18.8°C). During May, the average low-temperature is a cool 50.5°F (10.3°C).

Humidity

The average relative humidity in May in Buffalo Grove is 77%.

Rainfall

May is the month with the most rainfall. Rain falls for 17.6 days and accumulates 3.66" (93mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Buffalo Grove aggregates 0.08" (2mm) of snow. Throughout the year, in Buffalo Grove, Illinois, there are 45.4 snowfall days, and 16.85" (428mm) of snow is accumulated.

Daylight

In Buffalo Grove, the average length of the day in May is 14h and 36min.
On the first day of May in Buffalo Grove, sunrise is at 5:46 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 8:21 pm CDT.

Sunshine

In May, the average sunshine in Buffalo Grove, Illinois, is 8.6h.

UV index

In Buffalo Grove, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In May, a daily maximum UV index of 5 leads to the following instructions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
[Resources]

Frequently asked questions

What is the temperature in May in Buffalo Grove?

The high-temperature during May is 65.8°F (18.8°C) and the low-temperature is 50.5°F (10.3°C).

What is the average humidity in May in Buffalo Grove?

The average relative humidity in May is 77%.

What is the wettest month in Buffalo Grove?

May is the month with the most rainfall. Rain falls for 17.6 days and accumulates 3.66" (93mm) of precipitation.

How much does it rain in Buffalo Grove in May?

In Buffalo Grove, Illinois, during May, the rain falls for 17.6 days and regularly aggregates up to 3.66" (93mm) of precipitation.

What is the last month it snows in Buffalo Grove?

May is the last month it regularly snows in Buffalo Grove. During 0.1 snowfall days, in May, Buffalo Grove aggregates 0.08" (2mm) of snow.

How many hours of daylight does Buffalo Grove have in May?

In May, the average day length is 14h and 36min.

When are sunrise and sunset in May in Buffalo Grove?

On the first day of May, sunrise is at 5:46 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 8:21 pm CDT.

How many hours of sunshine does Buffalo Grove have in May?

In May, the average sunshine duration in Buffalo Grove, Illinois, is 8.6h.

How high is the UV index in May in Buffalo Grove?

In May, the average daily maximum UV index in Buffalo Grove is 5. A UV Index of 3 to 5 symbolizes 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
Buffalo Grove, IL

Average temperature in May - Buffalo Grove, IL
  • Average high temperature in May: 65.8°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in May: 50.5°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).

[Resources]

Average pressure in May
Buffalo Grove, IL

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

[Resources]

Average wind speed in May
Buffalo Grove, IL

Average wind speed in May - Buffalo Grove, IL
  • Average wind speed in May: 8.4mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

[Resources]

Average humidity in May
Buffalo Grove, IL

Average humidity in May - Buffalo Grove, IL
  • Average humidity in May: 77%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (73%).

[Resources]

Average rainfall in May
Buffalo Grove, IL

Average rainfall in May - Buffalo Grove, IL
  • Average rainfall in May: 3.66"

The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is December (1.34").

[Resources]

Average rainfall days in May
Buffalo Grove, IL

Average rainfall days in May - Buffalo Grove, IL
  • Average rainfall days in May: 17.6 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (5.9 days).

[Resources]

Average snowfall in May
Buffalo Grove, IL

Average snowfall in May - Buffalo Grove, IL
  • Average snowfall in May: 0.08"

The month with the highest snowfall is January (4.8").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in May
Buffalo Grove, IL

Average snowfall days in May - Buffalo Grove, IL
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (12.5 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
Buffalo Grove, IL

Average daylight in May / Average sunshine in May - Buffalo Grove, 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 12min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

[Resources]

Average sunshine days in May
Buffalo Grove, IL

Average sunshine days in May - Buffalo Grove, IL
  • Average sunshine days in May: 11.4 days

The month with the most sunshine days is November (15.7 days).
The month with the least sunshine days is April (10.3 days).

[Resources]

Average UV index in May
Buffalo Grove, IL

Average UV index in May - Buffalo Grove, IL
  • Average UV index in May: 5

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

[Resources]

Average cloud cover in May
Buffalo Grove, IL

Average cloud cover in May - Buffalo Grove, IL
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 29).

[Resources]

Average visibility in May
Buffalo Grove, IL

Average visibility in May - Buffalo Grove, 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).

[Resources]

Buffalo Grove, Illinois, USA

Weather forecast for your location

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