May weather forecastHumboldt, IA
May
Weather in May
In May, Humboldt witnesses a set of weather patterns indicative of impending summer. Warmer air replaces the cool spring breezes, and the skies brighten as the sunshine hours peak. Nature blossoms to its fullest while animals become increasingly active. With the maximum precipitation of the year, having an average rainfall of 3.43" (87mm), this month ensures the environment stays refreshingly green.Temperature
The average high-temperature increases in May, moving from a refreshing 56.8°F (13.8°C) in April to an agreeable 69.1°F (20.6°C). May nights experience a consistent temperature drop to a fresh 52.5°F (11.4°C).Humidity
In Humboldt, the average relative humidity in May is 71%.Rainfall
In Humboldt, in May, it is raining for 17.1 days, with typically 3.43" (87mm) of accumulated precipitation. Throughout the year, in Humboldt, there are 130.6 rainfall days, and 25" (635mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Humboldt. During 0.3 snowfall days, in May, Humboldt aggregates 0.28" (7mm) of snow. Throughout the year, in Humboldt, there are 41.2 snowfall days, and 18.11" (460mm) of snow is accumulated.Daylight
In Humboldt, the average length of the day in May is 14h and 39min.On the first day of May, sunrise is at 6:10 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:47 pm CDT.
Sunshine
In May, the average sunshine is 8.7h.UV index
In May, the average daily maximum UV index in Humboldt, Iowa, is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 5 during May leads to these advisories:
Guard yourself - An obligation to protect skin and eyes from harm exists. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Humboldt, IA
- Average high temperature in May: 69.1°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in May: 52.5°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in May
Humboldt, 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
Humboldt, IA
- Average wind speed in May: 9.4mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in May
Humboldt, IA
- Average humidity in May: 71%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (68%).
Average rainfall in May
Humboldt, IA
- Average rainfall in May: 3.43"
The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in May
Humboldt, IA
- Average rainfall days in May: 17.1 days
The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in May
Humboldt, IA
- Average snowfall in May: 0.28"
The month with the highest snowfall is February (5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Humboldt, IA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Humboldt, IA
- Average daylight in May: 14h and 42min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
Humboldt, IA
- Average sunshine days in May: 12.2 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in May
Humboldt, 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, November and December (UV index 2).
Average cloud cover in May
Humboldt, IA
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and September (Cloud cover 30).
Average visibility in May
Humboldt, 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).





