May weather forecastClinton, IA
May
Weather in May
May signals the advent of early summer in Clinton, Iowa, with an escalation in temperatures apparent. The weather turns significantly warmer with highs climbing to 69.4°F (20.8°C). This month records the highest average rainfall, turning the cityscape verdant and lush. Activities shift outdoors as residents revel in the sun-soaked days and pleasantly cool, dewy evenings of May.Temperature
Clinton's May weather brings a rise in high-temperatures, moving from a refreshing 58.1°F (14.5°C) in April to a pleasant 69.4°F (20.8°C). The average temperature during May nights in Clinton is registered at a cool 52.7°F (11.5°C).Humidity
In May, the average relative humidity is 78%.Rainfall
The month with the most rainfall is May, when the rain falls for 16.9 days and typically aggregates up to 3.19" (81mm) of precipitation.Snowfall
In Clinton, snow does not fall in May through September.Daylight
In May, the average length of the day is 14h and 34min.On the first day of the month, sunrise is at 5:55 am and sunset at 7:59 pm. On the last day of May, in Clinton, sunrise is at 5:28 am and sunset at 8:28 pm CDT.
Sunshine
The average sunshine in May is 8.7h.UV index
In Clinton, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 5 in May translates into the following recommendations:
Act with care - The need to guard against sun damage is communicated. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Clinton, IA
- Average high temperature in May: 69.4°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in May: 52.7°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure in May
Clinton, IA
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Clinton, IA
- Average wind speed in May: 8.8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in May
Clinton, IA
- Average humidity in May: 78%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (73%).
Average rainfall in May
Clinton, IA
- Average rainfall in May: 3.19"
The wettest month (with the highest rainfall) is May (3.19").
The driest months (with the least rainfall) are January and February (0.79").
Average rainfall days in May
Clinton, IA
- Average rainfall days in May: 16.9 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in May
Clinton, IA
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.8").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Clinton, IA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (9.3 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
Clinton, IA
- Average daylight in May: 14h and 36min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 42min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in May
Clinton, IA
- Average sunshine days in May: 11.8 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in May
Clinton, IA
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Clinton, IA
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in May
Clinton, IA
- 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).
