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 average high-temperature increases in May, moving from a refreshing 55.4°F (13°C) in April to an enjoyable 67.6°F (19.8°C). An average low-temperature of 50.9°F (10.5°C) is anticipated throughout the nights in Lester during May.Humidity
The average relative humidity in May is 69%.Rainfall
In Lester, in May, during 16 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. In Lester, during the entire year, the rain falls for 119.2 days and collects up to 22.13" (562mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Lester aggregates 0.24" (6mm) of snow. In Lester, during the entire year, snow falls for 48.3 days and aggregates up to 19.29" (490mm) of snow.Daylight
The average length of the day in May is 14h and 43min.On the first day of May, sunrise is at 6:16 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:58 pm CDT.
Sunshine
The average sunshine in May is 8.6h.UV index
The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, the maximum UV index of 5 suggests this advice:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
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 is the sunrise / sunset in May?
How many hours of sunshine does Lester have in May?
How high is the UV index in May in Lester?
Average temperature in May
Lester, IA
- Average high temperature in May: 67.6°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (23°F).
- Average low temperature in May: 50.9°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (9.5°F).
Average pressure in May
Lester, IA
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in May
Lester, IA
- Average wind speed in May: 9.8mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in May
Lester, IA
- Average humidity in May: 69%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (67%).
Average rainfall in May
Lester, IA
- Average rainfall in May: 2.83"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in May
Lester, IA
- Average rainfall days in May: 16 days
The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in May
Lester, IA
- Average snowfall in May: 0.24"
The month with the highest snowfall is February (4.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Lester, IA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is December (11.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Lester, IA
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
Lester, IA
- Average sunshine days in May: 13.6 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in May
Lester, IA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Lester, IA
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in May
Lester, IA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Lester, Iowa, USA
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