May weather forecastWestchester, IN
May
Weather in May
The last month of the spring, May, is a pleasant month in Westchester, Indiana, with an average temperature varying between 70.5°F (21.4°C) and 54.1°F (12.3°C).Temperature
May's arrival brings a temperature shift, moving from a moderate 59.5°F (15.3°C) in April to a pleasant 70.5°F (21.4°C). In Westchester, May's nights observe an average temperature dip to a cool 54.1°F (12.3°C).Humidity
In May, the average relative humidity is 78%.Rainfall
The month with the most rainfall is May, when the rain falls for 13.9 days and typically aggregates up to 1.1" (28mm) of precipitation.Snowfall
In Westchester, snow does not fall in May through September.Daylight
In May, the average length of the day is 14h and 27min.On the first day of the month, sunrise is at 6:37 am and sunset at 8:35 pm. On the last day of May, sunrise is at 6:11 am and sunset at 9:03 pm EDT.
Sunshine
In May, the average sunshine is 8.5h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 5 during May morphs into the following directions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Westchester, IN
- Average high temperature in May: 70.5°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in May: 54.1°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in May
Westchester, IN
- Average pressure in May: 29.97"Hg
The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Westchester, IN
- Average wind speed in May: 8.4mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in May
Westchester, IN
- Average humidity in May: 78%
The months with the highest relative humidity are January, February and December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
Westchester, IN
- Average rainfall in May: 1.1"
The wettest month (with the highest rainfall) is May (1.1").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in May
Westchester, IN
- Average rainfall days in May: 13.9 days
The month with the highest number of rainy days is May (13.9 days).
The months with the least rainy days are January and February (4.8 days).
Average snowfall in May
Westchester, IN
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.75").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Westchester, IN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (8.8 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
Westchester, IN
- Average daylight in May: 14h and 30min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 8h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in May
Westchester, IN
- Average sunshine days in May: 13.5 days
The months with the most sunshine days are October and November (19.7 days).
The month with the least sunshine days is June (13.3 days).
Average UV index in May
Westchester, IN
- 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
Westchester, IN
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in May
Westchester, IN
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are August and September (5mi).
