May weather forecastVan Horne, IA
May
Weather in May
The last month of the spring, May, is a pleasant month in Van Horne, Iowa, with temperature in the range of an average high of 68.7°F (20.4°C) and an average low of 52.2°F (11.2°C).Temperature
May brings a temperature increase, with average high-temperatures moving from April's refreshing 57.7°F (14.3°C) to a pleasant 68.7°F (20.4°C). In the month of May, Van Horne experiences an average low-temperature of 52.2°F (11.2°C).Humidity
The average relative humidity in May is 78%.Rainfall
The month with the most rainfall is May, when the rain falls for 18.1 days and typically aggregates up to 4.61" (117mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Van Horne. May is the last month it regularly snows in Van Horne. During 0.2 snowfall days, in May, Van Horne aggregates 0.12" (3mm) of snow. Throughout the year, in Van Horne, there are 39 snowfall days, and 16.69" (424mm) of snow is accumulated.Daylight
In Van Horne, the average length of the day in May is 14h and 35min.On the first day of the month, sunrise is at 6:03 am and sunset at 8:07 pm. On the last day of May, in Van Horne, sunrise is at 5:35 am and sunset at 8:37 pm CDT.
Sunshine
The average sunshine in May in Van Horne is 8.5h.UV index
In Van Horne, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 5 in May translates into these instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Van Horne, IA
- Average high temperature in May: 68.7°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 (25.9°F).
- Average low temperature in May: 52.2°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in May
Van Horne, 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
Van Horne, IA
- Average wind speed in May: 9.2mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in May
Van Horne, IA
- Average humidity in May: 78%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Van Horne, IA
- Average rainfall in May: 4.61"
The wettest month (with the highest rainfall) is May (4.61").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in May
Van Horne, IA
- Average rainfall days in May: 18.1 days
The month with the highest number of rainy days is June (19.3 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in May
Van Horne, IA
- Average snowfall in May: 0.12"
The month with the highest snowfall is January (5.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Van Horne, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is February (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Van Horne, IA
- Average daylight in May: 14h and 36min
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 30min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
Van Horne, IA
- Average sunshine days in May: 10.6 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is June (8.4 days).
Average UV index in May
Van Horne, IA
- Average UV index in May: 5
The month with the highest UV index is June (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
Van Horne, IA
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in May
Van Horne, 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).
