May weather forecast
Long Grove, IL

• Average temperature in May
• Average pressure in May
• Average wind speed in May
• Average humidity in May
• Average rainfall in May
• Average rainfall days in May
• Average snowfall in May
• Average snowfall days in May
• Average daylight in May
• Average sunshine in May
• Average sunshine days in May
• Average UV index in May
• Average cloud cover in May
• Average visibility in May

Average temperature in May
Long 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).

Average pressure in May
Long 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).

Average wind speed in May
Long 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).

Average humidity in May
Long 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%).

Average rainfall in May
Long 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").

Average rainfall days in May
Long 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).

Average snowfall in May
Long 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").

Average snowfall days in May
Long 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).

Average daylight in May /
Average sunshine in May
Long 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).

Average sunshine days in May
Long 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).

Average UV index in May
Long 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).

Average cloud cover in May
Long 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).

Average visibility in May
Long 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).