May weather forecastMartinsville, IL
May
Weather in May
The last month of the spring, May, is a pleasant month in Martinsville, Illinois, with an average temperature varying between 73°F (22.8°C) and 56.7°F (13.7°C).Temperature
The average high-temperature increases in May, moving from a refreshing 62.8°F (17.1°C) in April to an agreeable 73°F (22.8°C). Throughout May, an average low-temperature of 56.7°F (13.7°C) is experienced.Humidity
In Martinsville, the average relative humidity in May is 80%.Rainfall
In Martinsville, Illinois, in May, it is raining for 14.9 days, with typically 1.34" (34mm) of accumulated precipitation. In Martinsville, during the entire year, the rain falls for 115.9 days and collects up to 11.26" (286mm) of precipitation.Snowfall
In Martinsville, snow does not fall in May through October.Daylight
In Martinsville, the average length of the day in May is 14h and 21min.On the first day of May in Martinsville, sunrise is at 5:51 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 5:26 am and sunset at 8:11 pm CDT.
Sunshine
The average sunshine in May is 8.9h.UV index
The average daily maximum UV index in May in Martinsville is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 5 in May translates into these instructions:
Make use of precautions - Suggestions to resist sunburn are communicated. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Martinsville, IL
- Average high temperature in May: 73°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34.7°F).
- Average low temperature in May: 56.7°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in May
Martinsville, IL
- Average pressure in May: 29.96"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
Martinsville, IL
- Average wind speed in May: 8.4mph
The windiest months (with the highest average wind speed) are January and February (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).
Average humidity in May
Martinsville, IL
- Average humidity in May: 80%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Martinsville, IL
- Average rainfall in May: 1.34"
The wettest month (with the highest rainfall) is April (1.54").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in May
Martinsville, IL
- Average rainfall days in May: 14.9 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is February (6 days).
Average snowfall in May
Martinsville, IL
- Average snowfall in May: 0"
The month with the highest snowfall is December (0.47").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Martinsville, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (5.8 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
Martinsville, IL
- Average daylight in May: 14h and 24min
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 6min).
Average sunshine days in May
Martinsville, IL
- Average sunshine days in May: 12.4 days
The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is May (12.4 days).
Average UV index in May
Martinsville, IL
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Martinsville, IL
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in May
Martinsville, IL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
