May weather forecastPercy Junction, IN
May
Weather in May
The last month of the spring, May, is an agreeable month in Percy Junction, Indiana, with an average temperature fluctuating between 71.4°F (21.9°C) and 54.5°F (12.5°C).Temperature
May's arrival sees a rise in the average high-temperature, jumping from April's mild 59.4°F (15.2°C) to an agreeable 71.4°F (21.9°C). In May, the average low-temperature records at a fresh 54.5°F (12.5°C) during the nights.Humidity
The average relative humidity in May in Percy Junction is 77%.Rainfall
May is the month with the most rainfall. Rain falls for 17.5 days and accumulates 2.64" (67mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In May, the average length of the day is 14h and 29min.On the first day of the month, sunrise is at 5:46 am and sunset at 7:45 pm. On the last day of May, sunrise is at 5:19 am and sunset at 8:14 pm CDT.
Sunshine
In Percy Junction, the average sunshine in May is 8.7h.UV index
In Percy Junction, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum daily UV index of 5 during May morphs into the following directions:
Adopt protective measures - It is advised to guard against sun damage. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Percy Junction, IN
- Average high temperature in May: 71.4°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in May: 54.5°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in May
Percy Junction, IN
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Percy Junction, IN
- Average wind speed in May: 8.6mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in May
Percy Junction, IN
- Average humidity in May: 77%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Percy Junction, IN
- Average rainfall in May: 2.64"
The wettest month (with the highest rainfall) is May (2.64").
The driest months (with the least rainfall) are January and February (0.79").
Average rainfall days in May
Percy Junction, IN
- Average rainfall days in May: 17.5 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (4.9 days).
Average snowfall in May
Percy Junction, IN
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Percy Junction, IN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (10.3 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
Percy Junction, IN
- Average daylight in May: 14h and 30min
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 42min
The months with the most sunshine are June and July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
Percy Junction, IN
- Average sunshine days in May: 11 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in May
Percy Junction, IN
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Percy Junction, IN
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July, August and September (Cloud cover 34).
Average visibility in May
Percy Junction, IN
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).





