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
With the arrival of May, the average high-temperature transitions from a moderate 58.3°F (14.6°C) in April to an agreeable 69.3°F (20.7°C). Colo records an average temperature drop to a fresh 52.5°F (11.4°C) in May.Humidity
The average relative humidity in May in Colo is 76%.Rainfall
May is the month with the most rainfall. Rain falls for 17 days and accumulates 4.17" (106mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Colo. During 0.2 snowfall days, in May, Colo aggregates 0.39" (10mm) of snow. Throughout the year, there are 38.3 snowfall days, and 14.13" (359mm) of snow is accumulated.Daylight
In Colo, the average length of the day in May is 14h and 35min.On the first day of the month, sunrise is at 6:07 am and sunset at 8:12 pm. On the last day of May, sunrise is at 5:40 am and sunset at 8:42 pm CDT.
Sunshine
The average sunshine in May is 8.4h.UV index
In May, the average daily maximum UV index in Colo is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. To protect against the Sun's most potent rays, avoid direct exposure around midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
What is the wettest month?
How many days does it rain in May?
What is the last month it snows?
How many hours of daylight does Colo have in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Colo have in May?
What is the UV index intensity in May?
Average temperature in May
Colo, IA
- Average high temperature in May: 69.3°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (26.2°F).
- Average low temperature in May: 52.5°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in May
Colo, IA
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in May
Colo, IA
- Average wind speed in May: 9.2mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in May
Colo, IA
- Average humidity in May: 76%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (70%).
Average rainfall in May
Colo, IA
- Average rainfall in May: 4.17"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in May
Colo, IA
- Average rainfall days in May: 17 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in May
Colo, IA
- Average snowfall in May: 0.39"
The month with the highest snowfall is January (3.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Colo, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Colo, IA
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 2min
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 54min).
Average sunshine days in May
Colo, IA
- Average sunshine days in May: 13.1 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (10.6 days).
Average UV index in May
Colo, IA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in May
Colo, IA
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in May
Colo, 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).
Colo, Iowa, USA
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