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
An escalation in the average high-temperature is seen with the onset of May, moving from an enjoyable 61.5°F (16.4°C) in April to a pleasant 72.7°F (22.6°C). During May, Tolono consistently records a temperature low averaging a moderate 56.1°F (13.4°C).Humidity
The average relative humidity in May in Tolono is 76%.Rainfall
May is the month with the most rainfall in Tolono. Rain falls for 16.8 days and accumulates 2.8" (71mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Tolono, the average length of the day in May is 14h and 25min.On the first day of May in Tolono, sunrise is at 5:51 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 5:26 am and sunset at 8:15 pm CDT.
Sunshine
In Tolono, Illinois, the average sunshine in May is 8.9h.UV index
In May, the average daily maximum UV index in Tolono is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The UV index of 5 in May translates into these instructions:
Make use of precautions - Suggestions to resist sunburn are communicated. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Tolono?
What is the average humidity in May in Tolono?
What is the wettest month in Tolono?
How much does it rain in Tolono in May?
When it does not snow in Tolono?
Does it snow in Tolono in May?
What is the average length of the day in May in Tolono?
When is the sunrise / sunset in May in Tolono?
How long on average sun shines in May in Tolono?
What is the UV index reading in May in Tolono?
Average temperature in May
Tolono, IL
- Average high temperature in May: 72.7°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in May: 56.1°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in May
Tolono, IL
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Tolono, IL
- Average wind speed in May: 8.9mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.4mph).
Average humidity in May
Tolono, IL
- Average humidity in May: 76%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (70%).
Average rainfall in May
Tolono, IL
- Average rainfall in May: 2.8"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is September (1.18").
Average rainfall days in May
Tolono, IL
- Average rainfall days in May: 16.8 days
The months with the highest number of rainy days are May and July (16.8 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in May
Tolono, IL
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Tolono, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (9.4 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
Tolono, IL
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in May
Tolono, IL
- Average sunshine days in May: 11.7 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in May
Tolono, IL
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Tolono, IL
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are June, August and September (Cloud cover 32).
Average visibility in May
Tolono, IL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Tolono, Illinois, USA
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