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
Allerton in May experiences an increase in the average high-temperature, moving from April's mild 60.4°F (15.8°C) to an agreeable 69.4°F (20.8°C). In May, the average low-temperature is a cool 52.9°F (11.6°C).Humidity
In May, the average relative humidity in Allerton is 81%.Rainfall
In May, the rain falls for 16.8 days. Throughout May, 2.76" (70mm) of precipitation is accumulated. In Allerton, Iowa, during the entire year, the rain falls for 125.7 days and collects up to 20.39" (518mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Allerton. During 0.2 snowfall days, in May, Allerton aggregates 0.08" (2mm) of snow. Throughout the year, in Allerton, there are 28.4 snowfall days, and 11.34" (288mm) of snow is accumulated.Daylight
In Allerton, the average length of the day in May is 14h and 28min.On the first day of May in Allerton, sunrise is at 6:10 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:38 pm CDT.
Sunshine
In May, the average sunshine in Allerton, Iowa, is 8.6h.UV index
In Allerton, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In May, the UV index of 5 transforms into the following advice:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Stay sun-safe with clothing that is both closely woven and worn loosely. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
What is the usual temperature for Allerton in May?
What is the average humidity in May in Allerton?
How much does it rain in Allerton in May?
What is the last month it snows in Allerton?
How many hours of daylight does Allerton have in May?
What time are sunrise and sunset in May in Allerton?
How many hours of sunshine does Allerton have in May?
What is the UV index reading in May in Allerton?
Average temperature in May
Allerton, IA
- Average high temperature in May: 69.4°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in May: 52.9°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure in May
Allerton, 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 (29.89"Hg).
Average wind speed in May
Allerton, IA
- Average wind speed in May: 8.8mph
The windiest months (with the highest average wind speed) are January and March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in May
Allerton, IA
- Average humidity in May: 81%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Allerton, IA
- Average rainfall in May: 2.76"
The wettest month (with the highest rainfall) is June (3.31").
The driest months (with the least rainfall) are January and December (0.71").
Average rainfall days in May
Allerton, IA
- Average rainfall days in May: 16.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in May
Allerton, IA
- Average snowfall in May: 0.08"
The month with the highest snowfall is January (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Allerton, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Allerton, IA
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- 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
Allerton, IA
- Average sunshine days in May: 11.1 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in May
Allerton, 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
Allerton, IA
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July, August and September (Cloud cover 29).
Average visibility in May
Allerton, 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).
Allerton, Iowa, USA
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