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 brings an increase in high-temperatures, moving from a mild 57°F (13.9°C) in April to an agreeable 68.5°F (20.3°C). The average temperature during May nights is registered at a cool 52°F (11.1°C).Humidity
In Hiawatha, the average relative humidity in May is 79%.Rainfall
May is the month with the most rainfall. Rain falls for 17.7 days and accumulates 4.37" (111mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Hiawatha. During 0.1 snowfall days, in May, Hiawatha aggregates 0.08" (2mm) of snow. In Hiawatha, during the entire year, snow falls for 41.2 days and aggregates up to 16.73" (425mm) of snow.Daylight
In May, the average length of the day is 14h and 35min.On the first day of the month, sunrise is at 6:01 am and sunset at 8:06 pm. On the last day of May, sunrise is at 5:33 am and sunset at 8:35 pm CDT.
Sunshine
In May, the average sunshine in Hiawatha, Iowa, is 8.6h.UV index
In Hiawatha, Iowa, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: In May, the maximum UV index of 5 suggests this advice:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Hiawatha in May?
What is the average humidity in May in Hiawatha?
What is the wettest month in Hiawatha?
How much does it rain in Hiawatha in May?
What is the last month it snows in Hiawatha?
How many hours of daylight does Hiawatha have in May?
What time are sunrise and sunset in May in Hiawatha?
How many hours of sunshine does Hiawatha have in May?
What is the UV index intensity in May in Hiawatha?
Average temperature in May
Hiawatha, IA
- Average high temperature in May: 68.5°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.3°F).
- Average low temperature in May: 52°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in May
Hiawatha, 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
Hiawatha, 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 (7mph).
Average humidity in May
Hiawatha, IA
- Average humidity in May: 79%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (73%).
Average rainfall in May
Hiawatha, IA
- Average rainfall in May: 4.37"
The wettest month (with the highest rainfall) is May (4.37").
The driest months (with the least rainfall) are January and February (1.18").
Average rainfall days in May
Hiawatha, IA
- Average rainfall days in May: 17.7 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in May
Hiawatha, IA
- Average snowfall in May: 0.08"
The month with the highest snowfall is January (5.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Hiawatha, IA
- Average snowfall days in May: 0.1 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
Hiawatha, 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 4min
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
Hiawatha, IA
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is June (9.9 days).
Average UV index in May
Hiawatha, IA
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Hiawatha, IA
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in May
Hiawatha, IA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Hiawatha, Iowa, USA
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