Contents
- Weather in May
- Frequently asked questions
- 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
Weather in May
Temperature
With the onset of May, Andover sees a temperature rise, with the average high-temperature moving from April's mild 59.2°F (15.1°C) to an agreeable 70.7°F (21.5°C). Andover experiences a mean low-temperature of 53.4°F (11.9°C) during May.Humidity
In May, the average relative humidity is 78%.Rainfall
The month with the most rainfall is May, when the rain falls for 16.5 days and typically aggregates up to 2.76" (70mm) of precipitation.Snowfall
May through September are months without snowfall in Andover.Daylight
The average length of the day in May in Andover is 14h and 31min.On the first day of May, sunrise is at 5:57 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:30 am and sunset at 8:27 pm CDT.
Sunshine
In Andover, the average sunshine in May is 8.9h.UV index
In Andover, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 5 during May translates into the following guidance:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Andover in May?
What is the average humidity in May in Andover?
What is the rainiest month?
How much does it rain in May?
When it does not snow?
Does it snow in Andover in May?
How many hours of daylight does Andover have in May?
When are sunrise and sunset in May?
How many hours of sunshine does Andover have in May?
How high is the UV index in May?
Average temperature in May
Andover, IL
- Average high temperature in May: 70.7°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in May: 53.4°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure in May
Andover, IL
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Andover, IL
- Average wind speed in May: 9.1mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in May
Andover, IL
- Average humidity in May: 78%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Andover, IL
- Average rainfall in May: 2.76"
The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is December (0.71").
Average rainfall days in May
Andover, IL
- Average rainfall days in May: 16.5 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (4 days).
Average snowfall in May
Andover, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Andover, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Andover, IL
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 8h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
Andover, 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 (11.2 days).
Average UV index in May
Andover, IL
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Andover, IL
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in May
Andover, IL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Andover, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location