May weather forecastLone Rock, IA
May
Weather in May
The last month of the spring, May, is an agreeable month in Lone Rock, Iowa, with temperature in the range of an average low of 52.2°F (11.2°C) and an average high of 68.5°F (20.3°C).Temperature
With the beginning of May, Lone Rock's average high-temperature sees an increase, transitioning from a refreshing 55.9°F (13.3°C) in April to an agreeable 68.5°F (20.3°C). During May nights, Lone Rock records an average temperature of 52.2°F (11.2°C).Humidity
In May, the average relative humidity in Lone Rock, Iowa, is 70%.Rainfall
In Lone Rock, in May, during 13.2 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. Throughout the year, in Lone Rock, there are 100.5 rainfall days, and 11.69" (297mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Lone Rock.Daylight
In May, the average length of the day in Lone Rock, Iowa, is 14h and 42min.On the first day of the month, sunrise is at 6:09 am and sunset at 8:19 pm. On the last day of May, sunrise is at 5:40 am and sunset at 8:50 pm CDT.
Sunshine
In Lone Rock, the average sunshine in May is 8.6h.UV index
The average daily maximum UV index in May in Lone Rock is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Lone Rock, IA
- Average high temperature in May: 68.5°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 (23.4°F).
- Average low temperature in May: 52.2°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in May
Lone Rock, 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
Lone Rock, IA
- Average wind speed in May: 9.6mph
The windiest months (with the highest average wind speed) are January and April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).
Average humidity in May
Lone Rock, IA
- Average humidity in May: 70%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (68%).
Average rainfall in May
Lone Rock, IA
- Average rainfall in May: 1.69"
The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in May
Lone Rock, IA
- Average rainfall days in May: 13.2 days
The month with the highest number of rainy days is June (14.5 days).
The month with the least rainy days is February (2.1 days).
Average snowfall in May
Lone Rock, IA
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.56").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Lone Rock, IA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Lone Rock, 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 0min).
- Average sunshine in May: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in May
Lone Rock, IA
- Average sunshine days in May: 15.1 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in May
Lone Rock, IA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Lone Rock, IA
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in May
Lone Rock, IA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).





