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
May brings a temperature increase, with average high-temperatures moving from April's mild 59.7°F (15.4°C) to a pleasant 69.3°F (20.7°C). In Afton, the May nights cool down to an average low of 52.7°F (11.5°C).Humidity
The average relative humidity in May in Afton is 79%.Rainfall
In Afton, during May, the rain falls for 17.4 days and regularly aggregates up to 3.62" (92mm) of precipitation. Throughout the year, there are 127.7 rainfall days, and 23.39" (594mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Afton. During 0.2 snowfall days, in May, Afton aggregates 0.31" (8mm) of snow. Throughout the year, there are 32.6 snowfall days, and 12.01" (305mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 30min.On the first day of the month, sunrise is at 6:13 am and sunset at 8:14 pm. On the last day of May, sunrise is at 5:46 am and sunset at 8:42 pm CDT.
Sunshine
The average sunshine in May in Afton is 8.3h.UV index
In Afton, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high daily UV index of 5 during May translates into the following directions:
Act with care - The suggestion to avoid sunburn is emphasized. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
What is the temperature in May in Afton?
What is the average humidity in May in Afton?
How many days does it rain in May in Afton?
What is the last month it snows in Afton?
How many hours of daylight does Afton have in May?
When is the sunrise / sunset in May in Afton?
How many hours of sunshine does Afton have in May?
What is the UV index intensity in May in Afton?
Average temperature in May
Afton, IA
- Average high temperature in May: 69.3°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (29.1°F).
- Average low temperature in May: 52.7°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in May
Afton, 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
Afton, IA
- Average wind speed in May: 8.9mph
The windiest months (with the highest average wind speed) are January and February (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in May
Afton, IA
- Average humidity in May: 79%
The months with the highest relative humidity are January and June (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Afton, IA
- Average rainfall in May: 3.62"
The wettest month (with the highest rainfall) is June (4.17").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in May
Afton, IA
- Average rainfall days in May: 17.4 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (3.7 days).
Average snowfall in May
Afton, IA
- Average snowfall in May: 0.31"
The month with the highest snowfall is January (3.15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Afton, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Afton, IA
- Average daylight in May: 14h and 3min
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 2min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in May
Afton, IA
- Average sunshine days in May: 10.7 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in May
Afton, IA
- 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 January (UV index 1).
Average cloud cover in May
Afton, IA
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July and September (Cloud cover 30).
Average visibility in May
Afton, IA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Afton, Iowa, USA
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