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 shift from April to May sees an increase in the average high-temperature, transitioning from a cool 54.9°F (12.7°C) to a pleasant 68°F (20°C). May nights are marked by an average low-temperature of 51.4°F (10.8°C).Humidity
In May, the average relative humidity is 69%.Rainfall
In Swea City, during May, the rain falls for 16.9 days and regularly aggregates up to 3.35" (85mm) of precipitation. Throughout the year, in Swea City, there are 130.4 rainfall days, and 24.65" (626mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.4 snowfall days, in May, Swea City aggregates 0.16" (4mm) of snow. Throughout the year, in Swea City, there are 57.5 snowfall days, and 23.31" (592mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 43min.On the first day of the month, sunrise is at 6:08 am and sunset at 8:19 pm. On the last day of May, sunrise is at 5:39 am and sunset at 8:50 pm CDT.
Sunshine
The average sunshine in May in Swea City is 8.7h.UV index
In May, the average daily maximum UV index in Swea City, Iowa, is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 5 during May leads to these advisories:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
What is the average May temperature in Swea City?
What is the average humidity in May in Swea City?
How many days does it rain in May in Swea City?
What is the last month it snows in Swea City?
How many hours of daylight does Swea City have in May?
When is the sunrise / sunset in May in Swea City?
How long on average sun shines in May in Swea City?
What is the UV index reading in May in Swea City?
Average temperature in May
Swea City, IA
- Average high temperature in May: 68°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.1°F).
- Average low temperature in May: 51.4°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).
Average pressure in May
Swea City, 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 (29.88"Hg).
Average wind speed in May
Swea City, IA
- Average wind speed in May: 9.4mph
The windiest month (with the highest average wind speed) is February (10.8mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in May
Swea City, IA
- Average humidity in May: 69%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (68%).
Average rainfall in May
Swea City, IA
- Average rainfall in May: 3.35"
The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in May
Swea City, IA
- Average rainfall days in May: 16.9 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in May
Swea City, IA
- Average snowfall in May: 0.16"
The month with the highest snowfall is February (6.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Swea City, IA
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is January (13.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Swea City, 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 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
Swea City, IA
- Average sunshine days in May: 11.7 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is June (8.5 days).
Average UV index in May
Swea City, 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 and November (UV index 1).
Average cloud cover in May
Swea City, IA
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are July and September (Cloud cover 31).
Average visibility in May
Swea City, IA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Swea City, Iowa, USA
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