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
May brings a temperature increase, with average high-temperatures moving from April's refreshing 59.9°F (15.5°C) to a pleasant 70.7°F (21.5°C). In May, Galesburg experiences a temperature dip to an average of 54°F (12.2°C) at night.Humidity
In May, the average relative humidity in Galesburg is 79%.Rainfall
The month with the most rainfall in Galesburg is May, when the rain falls for 15.2 days and typically aggregates up to 1.65" (42mm) of precipitation.Snowfall
In Galesburg, snow does not fall in May through September.Daylight
In Galesburg, the average length of the day in May is 14h and 29min.On the first day of May in Galesburg, Illinois, sunrise is at 5:58 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:26 pm CDT.
Sunshine
The average sunshine in May in Galesburg is 8.7h.UV index
In Galesburg, the average daily maximum UV index in May 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, a regular UV index of 5 translates into these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Galesburg?
What is the average humidity in May in Galesburg?
What is the wettest month in Galesburg?
How much does it rain in Galesburg in May?
When it does not snow in Galesburg?
Does it snow in Galesburg in May?
What is the average length of the day in May in Galesburg?
When is the sunrise / sunset in May in Galesburg?
How many hours of sunshine does Galesburg have in May?
What is the UV index intensity in May in Galesburg?
Average temperature in May
Galesburg, IL
- Average high temperature in May: 70.7°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in May: 54°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in May
Galesburg, 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
Galesburg, IL
- Average wind speed in May: 9.1mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in May
Galesburg, IL
- Average humidity in May: 79%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Galesburg, IL
- Average rainfall in May: 1.65"
The wettest month (with the highest rainfall) is May (1.65").
The driest months (with the least rainfall) are January and December (0.47").
Average rainfall days in May
Galesburg, IL
- Average rainfall days in May: 15.2 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in May
Galesburg, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Galesburg, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (8.8 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
Galesburg, IL
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
Galesburg, IL
- Average sunshine days in May: 13.7 days
The month with the most sunshine days is December (21.6 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in May
Galesburg, IL
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Galesburg, IL
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in May
Galesburg, IL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Galesburg, Illinois, USA
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