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 shift from April to May brings an increase in the average high-temperature, moving from a mild 56.5°F (13.6°C) to an agreeable 68.5°F (20.3°C). In May, the nighttime temperature in German Valley lowers to an average of 51.4°F (10.8°C).Humidity
In May, the average relative humidity is 79%.Rainfall
In German Valley, in May, during 18.3 rainfall days, 3.19" (81mm) of precipitation is typically accumulated. In German Valley, during the entire year, the rain falls for 145.6 days and collects up to 23.43" (595mm) of precipitation.Snowfall
In German Valley, snow does not fall in May through September.Daylight
The average length of the day in May is 14h and 36min.On the first day of May, sunrise is at 5:52 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 8:27 pm CDT.
Sunshine
In German Valley, Illinois, the average sunshine in May is 8.4h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 5 during May translates into these guidelines:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May?
How much does it rain in May?
When it does not snow?
Does it snow in May?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How many hours of sunshine does German Valley have in May?
When is the highest UV index?
How high is the UV index in May?
Average temperature in May
German Valley, IL
- Average high temperature in May: 68.5°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in May: 51.4°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
German Valley, 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
German Valley, IL
- Average wind speed in May: 8.8mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in May
German Valley, IL
- Average humidity in May: 79%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall in May
German Valley, IL
- Average rainfall in May: 3.19"
The wettest month (with the highest rainfall) is June (3.39").
The driest months (with the least rainfall) are February and December (1.06").
Average rainfall days in May
German Valley, IL
- Average rainfall days in May: 18.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5 days).
Average snowfall in May
German Valley, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.54").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
German Valley, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (12.4 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
German Valley, 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 2min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in May
German Valley, IL
- Average sunshine days in May: 10.5 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (9.7 days).
Average UV index in May
German Valley, IL
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
German Valley, IL
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility in May
German Valley, IL
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
German Valley, Illinois, USA
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