May weather forecastBrownstown, IL
May
Weather in May
The last month of the spring, May, is a warm month in Brownstown, Illinois, with an average temperature fluctuating between 57°F (13.9°C) and 73.4°F (23°C).Temperature
Brownstown in May sees a temperature change, with average high-temperatures moving from an enjoyable 63.5°F (17.5°C) in April to a moderately hot 73.4°F (23°C). Throughout the month of May, the average temperature in Brownstown dips to a refreshing 57°F (13.9°C) at night.Humidity
In May, the average relative humidity is 80%.Rainfall
In Brownstown, Illinois, during May, the rain falls for 15.7 days and regularly aggregates up to 2.56" (65mm) of precipitation. Throughout the year, in Brownstown, Illinois, there are 139.3 rainfall days, and 23.94" (608mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Brownstown.Daylight
In May, the average length of the day is 14h and 19min.On the first day of the month, sunrise is at 5:56 am and sunset at 7:48 pm. On the last day of May, sunrise is at 5:32 am and sunset at 8:15 pm CDT.
Sunshine
The average sunshine in May is 9h.UV index
In May, the average daily maximum UV index 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 ordinary individuals.Note: In May, the maximum UV index of 5 transforms into these recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Brownstown, IL
- Average high temperature in May: 73.4°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in May: 57°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in May
Brownstown, IL
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Brownstown, IL
- Average wind speed in May: 8.2mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in May
Brownstown, IL
- Average humidity in May: 80%
The months with the highest relative humidity are July and August (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Brownstown, IL
- Average rainfall in May: 2.56"
The wettest months (with the highest rainfall) are April and June (2.95").
The driest month (with the least rainfall) is February (1.18").
Average rainfall days in May
Brownstown, IL
- Average rainfall days in May: 15.7 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in May
Brownstown, IL
- Average snowfall in May: 0"
The month with the highest snowfall is December (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Brownstown, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (5.7 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
Brownstown, IL
- Average daylight in May: 14h and 18min
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 30min).
- Average sunshine in May: 9h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in May
Brownstown, IL
- Average sunshine days in May: 12.3 days
The months with the most sunshine days are January and November (19.5 days).
The months with the least sunshine days are May and July (12.3 days).
Average UV index in May
Brownstown, 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
Brownstown, IL
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June and July (Cloud cover 29).
Average visibility in May
Brownstown, IL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
