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
The arrival of May sees a shift in the average high-temperature, moving from a mild 56.1°F (13.4°C) in April to an agreeable 68°F (20°C). Throughout the nights in May, Readlyn experiences an average low-temperature of 51.4°F (10.8°C).Humidity
In May, the average relative humidity is 77%.Rainfall
In Readlyn, in May, it is raining for 17 days, with typically 4.06" (103mm) of accumulated precipitation. Throughout the year, there are 132 rainfall days, and 27.28" (693mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Readlyn aggregates 0.2" (5mm) of snow. Throughout the year, there are 45.6 snowfall days, and 17.48" (444mm) of snow is accumulated.Daylight
In Readlyn, the average length of the day in May is 14h and 39min.On the first day of the month, sunrise is at 6:02 am and sunset at 8:09 pm. On the last day of May, sunrise is at 5:33 am and sunset at 8:39 pm CDT.
Sunshine
In Readlyn, the average sunshine in May is 8.5h.UV index
The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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 much does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
When are sunrise and sunset in May?
How many hours of sunshine does Readlyn have in May?
How high is the UV index in May?
Average temperature in May
Readlyn, IA
- Average high temperature in May: 68°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (23.9°F).
- Average low temperature in May: 51.4°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in May
Readlyn, IA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in May
Readlyn, IA
- Average wind speed in May: 9.3mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in May
Readlyn, IA
- Average humidity in May: 77%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Readlyn, IA
- Average rainfall in May: 4.06"
The wettest month (with the highest rainfall) is June (4.09").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in May
Readlyn, IA
- Average rainfall days in May: 17 days
The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is January (3.9 days).
Average snowfall in May
Readlyn, IA
- Average snowfall in May: 0.2"
The month with the highest snowfall is January (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Readlyn, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Readlyn, IA
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in May
Readlyn, IA
- Average sunshine days in May: 12.5 days
The months with the most sunshine days are October, November and December (17.5 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in May
Readlyn, IA
- Average UV index in May: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Readlyn, IA
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in May
Readlyn, IA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Readlyn, Iowa, USA
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