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
The onset of May marks an increase in the average high-temperature, moving from a refreshing 63.3°F (17.4°C) in April to a pleasant 72.9°F (22.7°C). An average low-temperature of 56.5°F (13.6°C) is anticipated throughout the nights during May.Humidity
In Thayer, Illinois, the average relative humidity in May is 78%.Rainfall
In May, the rain falls for 16.8 days. Throughout May, 2.72" (69mm) of precipitation is accumulated. Throughout the year, there are 143.6 rainfall days, and 23.74" (603mm) of precipitation is accumulated.Snowfall
In Thayer, snow does not fall in May through October.Daylight
In May, the average length of the day in Thayer is 14h and 22min.On the first day of May, sunrise is at 5:58 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:20 pm CDT.
Sunshine
The average sunshine in May is 9.1h.UV index
In Thayer, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 5 during May translates into the following directions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Thayer?
What is the average humidity in May in Thayer?
How many days does it rain in May in Thayer?
When it does not snow in Thayer?
Does it snow in Thayer in May?
How many hours of daylight does Thayer have in May?
When are sunrise and sunset in May in Thayer?
How many hours of sunshine does Thayer have in May?
How high is the UV index in May in Thayer?
Average temperature in May
Thayer, IL
- Average high temperature in May: 72.9°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in May: 56.5°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in May
Thayer, IL
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Thayer, IL
- Average wind speed in May: 8.3mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in May
Thayer, IL
- Average humidity in May: 78%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Thayer, IL
- Average rainfall in May: 2.72"
The wettest month (with the highest rainfall) is June (2.83").
The driest months (with the least rainfall) are February and December (1.26").
Average rainfall days in May
Thayer, IL
- Average rainfall days in May: 16.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in May
Thayer, IL
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Thayer, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (8 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
Thayer, IL
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 9h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in May
Thayer, IL
- Average sunshine days in May: 11.5 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is May (11.5 days).
Average UV index in May
Thayer, 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
Thayer, IL
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in May
Thayer, 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).
Thayer, Illinois, USA
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