Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
Ankeny, Iowa, sees a rise in temperature during May, with average high-temperatures transitioning from a mild 59.4°F (15.2°C) in April to an agreeable 69.6°F (20.9°C). In Ankeny, an average nighttime temperature of 53.1°F (11.7°C) is expected during May.Humidity
In May, the average relative humidity is 77%.Rainfall
May is the month with the most rainfall. Rain falls for 17 days and accumulates 3.98" (101mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Ankeny aggregates 0.16" (4mm) of snow. Throughout the year, there are 36.2 snowfall days, and 13.94" (354mm) of snow is accumulated.Daylight
In Ankeny, Iowa, the average length of the day in May is 14h and 34min.On the first day of May, sunrise is at 6:09 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:42 pm CDT.
Sunshine
In May, the average sunshine in Ankeny is 8.7h.UV index
In Ankeny, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: A daily high UV index of 5 in May leads to these guidelines:
Exercise prevention - Precautions against solar damage are endorsed. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
What is the average May temperature in Ankeny?
What is the average humidity in May in Ankeny?
What is the wettest month in Ankeny?
How many days does it rain in May in Ankeny?
What is the last month it snows in Ankeny?
How many hours of daylight does Ankeny have in May?
What time are sunrise and sunset in May in Ankeny?
How many hours of sunshine does Ankeny have in May?
How high is the UV index in May in Ankeny?
Average temperature in May
Ankeny, IA
- Average high temperature in May: 69.6°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in May: 53.1°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 (14.4°F).
Average pressure in May
Ankeny, IA
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
Ankeny, IA
- Average wind speed in May: 8.8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in May
Ankeny, IA
- Average humidity in May: 77%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall in May
Ankeny, IA
- Average rainfall in May: 3.98"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in May
Ankeny, IA
- Average rainfall days in May: 17 days
The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in May
Ankeny, IA
- Average snowfall in May: 0.16"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Ankeny, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Ankeny, IA
- Average daylight in May: 14h and 4min
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 4min
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 18min).
Average sunshine days in May
Ankeny, IA
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is June (11 days).
Average UV index in May
Ankeny, IA
- 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, February, October, November and December (UV index 2).
Average cloud cover in May
Ankeny, IA
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 29).
Average visibility in May
Ankeny, IA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Ankeny, Iowa, USA
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