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, Thomson's average high-temperature experiences a rise, moving from April's mild 56.7°F (13.7°C) to a pleasant 68.5°F (20.3°C). Thomson reports a consistent average low-temperature of 51.6°F (10.9°C) throughout May nights.Humidity
In Thomson, Illinois, the average relative humidity in May is 79%.Rainfall
May is the month with the most rainfall in Thomson. Rain falls for 18.5 days and accumulates 4.09" (104mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Thomson aggregates 0.04" (1mm) of snow. In Thomson, during the entire year, snow falls for 41.2 days and aggregates up to 16.73" (425mm) of snow.Daylight
In Thomson, Illinois, the average length of the day in May is 14h and 35min.On the first day of May in Thomson, Illinois, sunrise is at 5:55 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:28 pm CDT.
Sunshine
In Thomson, the average sunshine in May is 8.5h.UV index
In Thomson, Illinois, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 5 in May translates into these instructions:
Adopt protective measures - Suggestions to resist sunburn are offered. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
What is the usual temperature for Thomson in May?
What is the average humidity in May in Thomson?
What is the rainiest month in Thomson?
How many days does it rain in May in Thomson?
What is the last month it snows in Thomson?
How many hours of daylight does Thomson have in May?
What time are sunrise and sunset in May in Thomson?
How many hours of sunshine does Thomson have in May?
How high is the UV index in May in Thomson?
Average temperature in May
Thomson, IL
- Average high temperature in May: 68.5°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in May: 51.6°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in May
Thomson, IL
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Thomson, IL
- Average wind speed in May: 8.8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in May
Thomson, IL
- Average humidity in May: 79%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
Thomson, IL
- Average rainfall in May: 4.09"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is February (1.38").
Average rainfall days in May
Thomson, IL
- Average rainfall days in May: 18.5 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in May
Thomson, IL
- Average snowfall in May: 0.04"
The month with the highest snowfall is January (5.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Thomson, IL
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Thomson, 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 3min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
Thomson, IL
- Average sunshine days in May: 10.9 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in May
Thomson, IL
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Thomson, IL
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in May
Thomson, IL
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Thomson, Illinois, USA
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