May weather forecastNewton, IL
May
Weather in May
May, the last month of the spring in Newton, is a warm month, with an average temperature fluctuating between 57°F (13.9°C) and 73.8°F (23.2°C).Temperature
May brings a temperature change, with average high-temperatures moving from April's enjoyable 64°F (17.8°C) to a moderately hot 73.8°F (23.2°C). Newton experiences a mean temperature of 57°F (13.9°C) during May nights.Humidity
In May, the average relative humidity is 80%.Rainfall
In Newton, during May, the rain falls for 18.7 days and regularly aggregates up to 3.86" (98mm) of precipitation. Throughout the year, there are 158.3 rainfall days, and 35.12" (892mm) of precipitation is accumulated.Snowfall
In Newton, snow does not fall in May through October.Daylight
The average length of the day in May is 14h and 19min.On the first day of the month, sunrise is at 5:53 am and sunset at 7:45 pm. On the last day of May, sunrise is at 5:28 am and sunset at 8:12 pm CDT.
Sunshine
In Newton, the average sunshine in May is 8.9h.UV index
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 exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 5 during May translates into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Newton, IL
- Average high temperature in May: 73.8°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 (66.9°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in May
Newton, 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
Newton, IL
- Average wind speed in May: 8.3mph
The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in May
Newton, 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 (70%).
Average rainfall in May
Newton, IL
- Average rainfall in May: 3.86"
The wettest month (with the highest rainfall) is April (5.04").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in May
Newton, IL
- Average rainfall days in May: 18.7 days
The month with the highest number of rainy days is May (18.7 days).
The months with the least rainy days are January and February (9.3 days).
Average snowfall in May
Newton, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Newton, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (6.3 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
Newton, 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: 8h and 54min
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 12min).
Average sunshine days in May
Newton, IL
- Average sunshine days in May: 10.1 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is May (10.1 days).
Average UV index in May
Newton, 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
Newton, IL
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in May
Newton, 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).





