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
A shift in the average high-temperature is noticeable in May, changing from a refreshing 56.1°F (13.4°C) in April to a pleasant 68°F (20°C). The low-temperature average for Rowley during May stands at a cool 51.3°F (10.7°C).Humidity
In Rowley, Iowa, the average relative humidity in May is 78%.Rainfall
The wettest months are May and June, with an average 4.37" (111mm) of rainfall.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Rowley aggregates 0.12" (3mm) of snow. In Rowley, during the entire year, snow falls for 43.9 days and aggregates up to 18.43" (468mm) of snow.Daylight
The average length of the day in May is 14h and 37min.On the first day of May, sunrise is at 6:01 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:37 pm CDT.
Sunshine
In May, the average sunshine is 8.4h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 5 during May translates into the following guidance:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Enhance your sun protection with tightly woven, yet airy clothing. 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
What is the usual temperature for Rowley in May?
What is the average humidity in May?
What is the rainiest month?
How many days does it rain in May in Rowley?
What is the last month it snows in Rowley?
How many hours of daylight does Rowley have in May?
When is the sunrise / sunset in May?
How long on average sun shines in May in Rowley?
What is the month with the highest UV index?
What is the UV index intensity in May in Rowley?
Average temperature in May
Rowley, IA
- Average high temperature in May: 68°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in May: 51.3°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 (12.2°F).
Average pressure in May
Rowley, 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
Rowley, IA
- Average wind speed in May: 9.4mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in May
Rowley, IA
- Average humidity in May: 78%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (73%).
Average rainfall in May
Rowley, IA
- Average rainfall in May: 4.37"
The wettest months (with the highest rainfall) are May and June (4.37").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in May
Rowley, IA
- Average rainfall days in May: 18.3 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is January (3.6 days).
Average snowfall in May
Rowley, IA
- Average snowfall in May: 0.12"
The month with the highest snowfall is January (5.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Rowley, IA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Rowley, 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 6min).
- 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 42min).
Average sunshine days in May
Rowley, IA
- Average sunshine days in May: 10.8 days
The months with the most sunshine days are January, October and November (17.5 days).
The month with the least sunshine days is June (8.2 days).
Average UV index in May
Rowley, IA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Rowley, IA
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in May
Rowley, 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).
Rowley, Iowa, USA
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