May weather forecastWest Chester, IA
May
Weather in May
The last month of the spring, May, is a pleasant month in West Chester, Iowa, with an average temperature fluctuating between 70.2°F (21.2°C) and 53.8°F (12.1°C).Temperature
The start of May signals an increase in the average high-temperature, moving from a mild 59.5°F (15.3°C) in April to a pleasant 70.2°F (21.2°C). West Chester in May experiences a low-temperature average of 53.8°F (12.1°C).Humidity
In West Chester, the average relative humidity in May is 79%.Rainfall
The month with the most rainfall is May, when the rain falls for 17 days and typically aggregates up to 2.91" (74mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In May, the average length of the day is 14h and 31min.On the first day of May, sunrise is at 6:03 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:33 pm CDT.
Sunshine
In West Chester, the average sunshine in May is 8.9h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 5 during May translates into these guidelines:
Take precautions - Protection against skin and eye damage is obliged. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
West Chester, IA
- Average high temperature in May: 70.2°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in May: 53.8°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure in May
West Chester, IA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
West Chester, IA
- Average wind speed in May: 8.9mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in May
West Chester, IA
- Average humidity in May: 79%
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
West Chester, IA
- Average rainfall in May: 2.91"
The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is December (0.71").
Average rainfall days in May
West Chester, IA
- Average rainfall days in May: 17 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (4.2 days).
Average snowfall in May
West Chester, IA
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.52").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
West Chester, IA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (8.9 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
West Chester, IA
- 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 12min).
- Average sunshine in May: 8h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in May
West Chester, IA
- Average sunshine days in May: 10.9 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in May
West Chester, IA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
West Chester, IA
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 29).
Average visibility in May
West Chester, IA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
