May weather forecastFlat Rock, IN
May
Weather in May
May, the last month of the spring in Flat Rock, is an agreeable month, with an average temperature fluctuating between 55.9°F (13.3°C) and 73°F (22.8°C).Temperature
Flat Rock in May sees a temperature change, with average high-temperatures moving from a refreshing 63.1°F (17.3°C) in April to a pleasant 73°F (22.8°C). Flat Rock observes an average nighttime temperature of 55.9°F (13.3°C) during May.Humidity
In Flat Rock, the average relative humidity in May is 80%.Rainfall
The month with the most rainfall is May, when the rain falls for 18.3 days and typically aggregates up to 3.5" (89mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Flat Rock, Indiana, the average length of the day in May is 14h and 21min.On the first day of May, sunrise is at 6:43 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 9:03 pm EDT.
Sunshine
The average sunshine in May in Flat Rock is 8.8h.UV index
In Flat Rock, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The UV index of 5 in May translates into these instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Flat Rock, IN
- Average high temperature in May: 73°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in May: 55.9°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in May
Flat Rock, IN
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Flat Rock, IN
- Average wind speed in May: 7.1mph
The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in May
Flat Rock, IN
- Average humidity in May: 80%
The months with the highest relative humidity are January, February, July and December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
Flat Rock, IN
- Average rainfall in May: 3.5"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in May
Flat Rock, IN
- Average rainfall days in May: 18.3 days
The month with the highest number of rainy days is May (18.3 days).
The months with the least rainy days are January and February (9.4 days).
Average snowfall in May
Flat Rock, IN
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.17").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Flat Rock, IN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (9.6 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
Flat Rock, IN
- 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 24min).
- Average sunshine in May: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in May
Flat Rock, IN
- Average sunshine days in May: 10.3 days
The month with the most sunshine days is October (17.7 days).
The month with the least sunshine days is May (10.3 days).
Average UV index in May
Flat Rock, IN
- 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
Flat Rock, IN
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in May
Flat Rock, IN
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are July and December (5mi).
