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
Afton sees an increase in the average high-temperature with the arrival of May, moving from April's mild 59.7°F (15.4°C) to a pleasant 69.3°F (20.7°C). Afton witnesses a consistent average low-temperature of 52.7°F (11.5°C) throughout May.Humidity
In Afton, the average relative humidity in May is 79%.Rainfall
In Afton, in May, it is raining for 17.4 days, with typically 3.62" (92mm) of accumulated precipitation. In Afton, during the entire year, the rain falls for 127.7 days and collects up to 23.39" (594mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Afton, Iowa. May is the last month it regularly snows. During 0.2 snowfall days, in May, Afton aggregates 0.31" (8mm) of snow. In Afton, during the entire year, snow falls for 32.6 days and aggregates up to 12.01" (305mm) of snow.Daylight
In May, the average length of the day 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, Iowa, is 8.3h.UV index
In Afton, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Guard yourself - Avoiding sunburn is suggested. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
How high is the UV index 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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