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 start of May brings a rise in the average high-temperature, moving from a comfortable 61.5°F (16.4°C) in April to a pleasant 72.3°F (22.4°C). Forest City's average low-temperature during May nights is observed to be a mild 55.8°F (13.2°C).Humidity
In Forest City, the average relative humidity in May is 77%.Rainfall
The month with the most rainfall in Forest City, Illinois, is May, when the rain falls for 20.3 days and typically aggregates up to 4.49" (114mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Forest City, the average length of the day in May is 14h and 26min.On the first day of May in Forest City, sunrise is at 5:57 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:22 pm CDT.
Sunshine
In May, the average sunshine in Forest City is 9.2h.UV index
In May, the average daily maximum UV index in Forest City is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 5 in May, converts into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Forest City in May?
What is the average humidity in May in Forest City?
What is the rainiest month in Forest City?
How much does it rain in Forest City in May?
When it does not snow in Forest City?
Does it snow in Forest City in May?
How many hours of daylight does Forest City have in May?
When are sunrise and sunset in May in Forest City?
How long on average sun shines in May in Forest City?
What is the UV index intensity in May in Forest City?
Average temperature in May
Forest City, IL
- Average high temperature in May: 72.3°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in May: 55.8°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 (19.8°F).
Average pressure in May
Forest City, IL
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Forest City, IL
- Average wind speed in May: 8.7mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in May
Forest City, IL
- Average humidity in May: 77%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall in May
Forest City, IL
- Average rainfall in May: 4.49"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is January (1.73").
Average rainfall days in May
Forest City, IL
- Average rainfall days in May: 20.3 days
The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in May
Forest City, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (4.25").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Forest City, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (11.3 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
Forest City, 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 18min).
- Average sunshine in May: 9h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in May
Forest City, IL
- Average sunshine days in May: 8.7 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is July (8.5 days).
Average UV index in May
Forest City, 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
Forest City, IL
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in May
Forest City, 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).
Forest City, Illinois, USA
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