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
Allendorf experiences a temperature shift with the start of May, with average high-temperatures moving from a cool 54.9°F (12.7°C) in April to an enjoyable 67.5°F (19.7°C). During the month of May, the temperature falls to an average of 50.7°F (10.4°C).Humidity
The average relative humidity in May is 69%.Rainfall
In Allendorf, in May, it is raining for 16.7 days, with typically 2.95" (75mm) of accumulated precipitation. In Allendorf, during the entire year, the rain falls for 122.3 days and collects up to 22.24" (565mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Allendorf aggregates 0.16" (4mm) of snow. Throughout the year, there are 51.6 snowfall days, and 19.69" (500mm) of snow is accumulated.Daylight
In Allendorf, the average length of the day in May is 14h and 43min.On the first day of May, sunrise is at 6:14 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:56 pm CDT.
Sunshine
The average sunshine in May is 8.7h.UV index
In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 5 in May translates into this advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Allendorf in May?
What is the average humidity in May?
How much does it rain in May?
What is the last month it snows?
How many hours of daylight does Allendorf have in May?
When are sunrise and sunset in May?
How many hours of sunshine does Allendorf have in May?
What is the UV index reading in May?
Average temperature in May
Allendorf, IA
- Average high temperature in May: 67.5°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in May: 50.7°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (9.5°F).
Average pressure in May
Allendorf, 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 (29.87"Hg).
Average wind speed in May
Allendorf, IA
- Average wind speed in May: 9.9mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).
Average humidity in May
Allendorf, 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
Allendorf, IA
- Average rainfall in May: 2.95"
The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in May
Allendorf, IA
- Average rainfall days in May: 16.7 days
The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in May
Allendorf, IA
- Average snowfall in May: 0.16"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Allendorf, IA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Allendorf, 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 24min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
Allendorf, IA
- Average sunshine days in May: 13 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is June (9.1 days).
Average UV index in May
Allendorf, 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 and February (UV index 1).
Average cloud cover in May
Allendorf, IA
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in May
Allendorf, 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).
Allendorf, Iowa, USA
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