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
Granville's weather shows a temperature rise with the arrival of May, moving from a mild 56.8°F (13.8°C) in April to a pleasant 68.5°F (20.3°C). In Granville, an average low-temperature of 51.6°F (10.9°C) is recorded during May nights.Humidity
In Granville, the average relative humidity in May is 69%.Rainfall
In May, in Granville, the rain falls for 17.2 days. Throughout May, 3.31" (84mm) of precipitation is accumulated. In Granville, Iowa, during the entire year, the rain falls for 124 days and collects up to 24.09" (612mm) of precipitation.Snowfall
Months with snowfall in Granville are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Granville aggregates 0.2" (5mm) of snow. In Granville, during the entire year, snow falls for 49.5 days and aggregates up to 18.39" (467mm) of snow.Daylight
The average length of the day in May is 14h and 41min.On the first day of May in Granville, sunrise is at 6:16 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:55 pm CDT.
Sunshine
The average sunshine in May is 8.5h.UV index
The average daily maximum UV index in May in Granville is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: An average UV index of 5 in May transforms into this advice:
Be vigilant - A duty to shield skin and eyes from injury exists. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. 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 Granville in May?
What is the average humidity in May in Granville?
How many days does it rain in May in Granville?
What is the last month it snows in Granville?
What is the average length of the day in May in Granville?
What time are sunrise and sunset in May in Granville?
How long on average sun shines in May in Granville?
How high is the UV index in May in Granville?
Average temperature in May
Granville, IA
- Average high temperature in May: 68.5°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (24.6°F).
- Average low temperature in May: 51.6°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in May
Granville, IA
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in May
Granville, IA
- Average wind speed in May: 9.8mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in May
Granville, IA
- Average humidity in May: 69%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (67%).
Average rainfall in May
Granville, IA
- Average rainfall in May: 3.31"
The wettest month (with the highest rainfall) is June (3.82").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days in May
Granville, IA
- Average rainfall days in May: 17.2 days
The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in May
Granville, IA
- Average snowfall in May: 0.2"
The month with the highest snowfall is February (4.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Granville, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Granville, 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 6min).
- Average sunshine in May: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in May
Granville, IA
- Average sunshine days in May: 11.8 days
The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in May
Granville, 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 December (UV index 1).
Average cloud cover in May
Granville, IA
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in May
Granville, 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).
Granville, Iowa, USA
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