May weather forecastRobinson, IL
May
Weather in May
May, the last month of the spring in Robinson, is a warm month, with an average temperature fluctuating between 57.2°F (14°C) and 73.8°F (23.2°C).Temperature
In Robinson, stepping into May brings a temperature increase, moving up from April's enjoyable 64°F (17.8°C) to a moderately hot 73.8°F (23.2°C). The average low-temperature during May nights is a refreshing 57.2°F (14°C).Humidity
The average relative humidity in May is 80%.Rainfall
In Robinson, in May, during 17.8 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. In Robinson, Illinois, during the entire year, the rain falls for 147.2 days and collects up to 27.87" (708mm) of precipitation.Snowfall
In Robinson, snow does not fall in May through October.Daylight
In Robinson, the average length of the day in May is 14h and 19min.On the first day of the month, sunrise is at 5:51 am and sunset at 7:44 pm. On the last day of May, sunrise is at 5:27 am and sunset at 8:10 pm CDT.
Sunshine
In May, the average sunshine in Robinson, Illinois, is 8.8h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high daily UV index of 6 during May translates into the following directions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Robinson, IL
- Average high temperature in May: 73.8°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in May: 57.2°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in May
Robinson, IL
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Robinson, IL
- Average wind speed in May: 8.2mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in May
Robinson, 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
Robinson, IL
- Average rainfall in May: 3.03"
The wettest month (with the highest rainfall) is April (4.13").
The driest month (with the least rainfall) is September (1.46").
Average rainfall days in May
Robinson, IL
- Average rainfall days in May: 17.8 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in May
Robinson, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Robinson, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Robinson, 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 48min
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 12min).
Average sunshine days in May
Robinson, IL
- Average sunshine days in May: 10.8 days
The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in May
Robinson, IL
- Average UV index in May: 6
The months with the highest UV index are May, 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
Robinson, IL
- Average cloud cover in May: 41
The months with the most cloud cover are January and February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in May
Robinson, 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).
