May weather forecastBunker Hill, IL
May
Weather in May
The last month of the spring, May, is a warm month in Bunker Hill, Illinois, with an average temperature fluctuating between 56.8°F (13.8°C) and 73.9°F (23.3°C).Temperature
The start of May brings a shift in the average high-temperature, increasing from April's comfortable 64°F (17.8°C) to a moderately hot 73.9°F (23.3°C). In May, the average low-temperature in Bunker Hill records at a moderate 56.8°F (13.8°C) during the nights.Humidity
The average relative humidity in May is 79%.Rainfall
In Bunker Hill, during May, the rain falls for 13.8 days and regularly aggregates up to 1.65" (42mm) of precipitation. In Bunker Hill, during the entire year, the rain falls for 115.4 days and collects up to 13.23" (336mm) of precipitation.Snowfall
In Bunker Hill, snow does not fall in April through October.Daylight
In Bunker Hill, the average length of the day in May is 14h and 20min.On the first day of the month, sunrise is at 6:00 am and sunset at 7:53 pm. On the last day of May, sunrise is at 5:35 am and sunset at 8:19 pm CDT.
Sunshine
In Bunker Hill, the average sunshine in May is 9.1h.UV index
The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 5 during May leads to these instructions:
Put precautions into practice - Guidance to elude sunburn is provided. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Bunker Hill, IL
- Average high temperature in May: 73.9°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in May: 56.8°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (23°F).
Average pressure in May
Bunker Hill, 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
Bunker Hill, IL
- Average wind speed in May: 7.8mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in May
Bunker Hill, IL
- Average humidity in May: 79%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Bunker Hill, IL
- Average rainfall in May: 1.65"
The wettest month (with the highest rainfall) is August (1.77").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in May
Bunker Hill, IL
- Average rainfall days in May: 13.8 days
The months with the highest number of rainy days are May and July (13.8 days).
The month with the least rainy days is December (5.1 days).
Average snowfall in May
Bunker Hill, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Bunker Hill, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (5.1 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
Bunker Hill, 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 6min
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 24min).
Average sunshine days in May
Bunker Hill, IL
- Average sunshine days in May: 15 days
The month with the most sunshine days is December (22.5 days).
The month with the least sunshine days is June (13.8 days).
Average UV index in May
Bunker Hill, 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
Bunker Hill, IL
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June and August (Cloud cover 29).
Average visibility in May
Bunker Hill, 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).
