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
Entering May, Underwood sees a temperature rise, with the average high-temperature advancing from April's enjoyable 60.8°F (16°C) to an agreeable 70.9°F (21.6°C). During the May nights, an average temperature of 53.8°F (12.1°C) is observed.Humidity
In May, the average relative humidity in Underwood, Iowa, is 73%.Rainfall
The month with the most rainfall is May, when the rain falls for 17.5 days and typically aggregates up to 4.09" (104mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Underwood. During 0.2 snowfall days, in May, Underwood aggregates 0.12" (3mm) of snow. Throughout the year, in Underwood, there are 33.7 snowfall days, and 13.07" (332mm) of snow is accumulated.Daylight
In Underwood, Iowa, the average length of the day in May is 14h and 32min.On the first day of the month, sunrise is at 6:18 am and sunset at 8:20 pm. On the last day of May, sunrise is at 5:51 am and sunset at 8:49 pm CDT.
Sunshine
In Underwood, the average sunshine in May is 8.9h.UV index
The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In May, the average maximum UV index of 5 translates into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Underwood in May?
What is the average humidity in May in Underwood?
What is the wettest month in Underwood?
How much does it rain in Underwood in May?
What is the last month it snows in Underwood?
How many hours of daylight does Underwood have in May?
When is the sunrise / sunset in May in Underwood?
How many hours of sunshine does Underwood have in May?
What is the UV index reading in May in Underwood?
Average temperature in May
Underwood, IA
- Average high temperature in May: 70.9°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in May: 53.8°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 (16.3°F).
Average pressure in May
Underwood, 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
Underwood, IA
- Average wind speed in May: 8.9mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is July (7mph).
Average humidity in May
Underwood, IA
- Average humidity in May: 73%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is October (67%).
Average rainfall in May
Underwood, IA
- Average rainfall in May: 4.09"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in May
Underwood, IA
- Average rainfall days in May: 17.5 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (4.2 days).
Average snowfall in May
Underwood, IA
- Average snowfall in May: 0.12"
The month with the highest snowfall is February (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Underwood, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Underwood, 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 12min).
- Average sunshine in May: 8h and 5min
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 42min).
Average sunshine days in May
Underwood, IA
- Average sunshine days in May: 11.5 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in May
Underwood, IA
- Average UV index in May: 5
The months with the highest UV index are June, July and August (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
Underwood, IA
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in May
Underwood, 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).
Underwood, Iowa, USA
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