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
In Alleman, stepping into May brings a temperature increase, moving up from April's mild 58.5°F (14.7°C) to a pleasant 69.3°F (20.7°C). Throughout May, Alleman's nights cool down to an average of 52.9°F (11.6°C).Humidity
The average relative humidity in May is 76%.Rainfall
May is the month with the most rainfall. Rain falls for 19 days and accumulates 4.65" (118mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Alleman aggregates 0.39" (10mm) of snow. In Alleman, during the entire year, snow falls for 44 days and aggregates up to 16.65" (423mm) of snow.Daylight
The average length of the day in May in Alleman, Iowa, is 14h and 34min.On the first day of the month, sunrise is at 6:09 am and sunset at 8:13 pm. On the last day of May, in Alleman, Iowa, sunrise is at 5:41 am and sunset at 8:42 pm CDT.
Sunshine
In Alleman, Iowa, the average sunshine in May is 8.6h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 5 in May interprets into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Frequently asked questions
What is the usual temperature for Alleman in May?
What is the average humidity in May in Alleman?
What is the rainiest month in Alleman?
How much does it rain in Alleman in May?
What is the last month it snows in Alleman?
How many hours of daylight does Alleman have in May?
When is the sunrise / sunset in May in Alleman?
How many hours of sunshine does Alleman have in May?
How high is the UV index in May in Alleman?
Average temperature in May
Alleman, IA
- Average high temperature in May: 69.3°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (26.6°F).
- Average low temperature in May: 52.9°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).
Average pressure in May
Alleman, IA
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
Alleman, IA
- Average wind speed in May: 9mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in May
Alleman, IA
- Average humidity in May: 76%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall in May
Alleman, IA
- Average rainfall in May: 4.65"
The wettest month (with the highest rainfall) is May (4.65").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in May
Alleman, IA
- Average rainfall days in May: 19 days
The month with the highest number of rainy days is June (19.3 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in May
Alleman, IA
- Average snowfall in May: 0.39"
The month with the highest snowfall is February (4.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Alleman, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Alleman, 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 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in May
Alleman, IA
- Average sunshine days in May: 9.2 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is June (8.4 days).
Average UV index in May
Alleman, 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
Alleman, IA
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in May
Alleman, 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).
Alleman, Iowa, USA
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