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
An upsurge in temperatures occurs as April gives way to May, with average highs shifting from a cool 54.5°F (12.5°C) to a refreshing 66.6°F (19.2°C). Throughout May, the average low-temperature in Alta Vista records at a cool 50°F (10°C).Humidity
In May, the average relative humidity in Alta Vista, Iowa, is 77%.Rainfall
In Alta Vista, in May, it is raining for 14.3 days, with typically 1.38" (35mm) of accumulated precipitation. In Alta Vista, during the entire year, the rain falls for 98 days and collects up to 9.8" (249mm) 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, Alta Vista aggregates 0.04" (1mm) of snow. In Alta Vista, during the entire year, snow falls for 36.8 days and aggregates up to 6.22" (158mm) of snow.Daylight
In Alta Vista, the average length of the day in May is 14h and 42min.On the first day of the month, sunrise is at 6:01 am and sunset at 8:11 pm. On the last day of May, in Alta Vista, sunrise is at 5:32 am and sunset at 8:42 pm CDT.
Sunshine
The average sunshine in May in Alta Vista is 8.4h.UV index
The average daily maximum UV index in May in Alta Vista is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 5 in May interprets into the following advice:
Prioritize safety - Recommendations to avert sunburn are shared. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Alta Vista in May?
What is the average humidity in May in Alta Vista?
How many days does it rain in May in Alta Vista?
What is the last month it snows in Alta Vista?
What is the average length of the day in May in Alta Vista?
What time are sunrise and sunset in May in Alta Vista?
How long on average sun shines in May in Alta Vista?
What is the UV index intensity in May in Alta Vista?
Average temperature in May
Alta Vista, IA
- Average high temperature in May: 66.6°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in May: 50°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure in May
Alta Vista, 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
Alta Vista, IA
- Average wind speed in May: 9.3mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).
Average humidity in May
Alta Vista, IA
- Average humidity in May: 77%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (73%).
Average rainfall in May
Alta Vista, IA
- Average rainfall in May: 1.38"
The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is January (0.31").
Average rainfall days in May
Alta Vista, IA
- Average rainfall days in May: 14.3 days
The month with the highest number of rainy days is June (14.5 days).
The month with the least rainy days is February (2 days).
Average snowfall in May
Alta Vista, IA
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (1.85").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Alta Vista, IA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Alta Vista, IA
- Average daylight in May: 14h and 4min
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 0min).
- Average sunshine in May: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
Alta Vista, IA
- Average sunshine days in May: 13.9 days
The month with the most sunshine days is November (22 days).
The month with the least sunshine days is June (13.3 days).
Average UV index in May
Alta Vista, 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, November and December (UV index 1).
Average cloud cover in May
Alta Vista, IA
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in May
Alta Vista, 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).
Alta Vista, Iowa, USA
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