May weather forecastCumberland, IA
May
Weather in May
The last month of the spring, May, is a pleasant month in Cumberland, Iowa, with an average temperature fluctuating between 52.9°F (11.6°C) and 69.6°F (20.9°C).Temperature
A shift in the average high-temperature is noticeable in May, changing from a mild 59.5°F (15.3°C) in April to a pleasant 69.6°F (20.9°C). In May, the nighttime temperature lowers to an average of 52.9°F (11.6°C).Humidity
In Cumberland, Iowa, the average relative humidity in May is 75%.Rainfall
In May, the rain falls for 16.2 days. Throughout May, 3.15" (80mm) of precipitation is accumulated. Throughout the year, there are 118.7 rainfall days, and 20.79" (528mm) of precipitation is accumulated.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, Cumberland aggregates 0.24" (6mm) of snow. In Cumberland, Iowa, during the entire year, snow falls for 32.3 days and aggregates up to 9.41" (239mm) of snow.Daylight
The average length of the day in May in Cumberland is 14h and 31min.On the first day of the month, sunrise is at 6:15 am and sunset at 8:17 pm. On the last day of May, sunrise is at 5:48 am and sunset at 8:45 pm CDT.
Sunshine
In Cumberland, the average sunshine in May is 8.7h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 5 during May leads to these advisories:
Ensure safety - Imperative it is to shield skin and eyes from damage. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Cumberland, IA
- Average high temperature in May: 69.6°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in May: 52.9°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in May
Cumberland, 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 (29.87"Hg).
Average wind speed in May
Cumberland, IA
- Average wind speed in May: 9.1mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in May
Cumberland, IA
- Average humidity in May: 75%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (69%).
Average rainfall in May
Cumberland, IA
- Average rainfall in May: 3.15"
The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in May
Cumberland, IA
- Average rainfall days in May: 16.2 days
The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in May
Cumberland, IA
- Average snowfall in May: 0.24"
The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Cumberland, IA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Cumberland, IA
- Average daylight in May: 14h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 8h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in May
Cumberland, IA
- Average sunshine days in May: 11.8 days
The month with the most sunshine days is December (21.2 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in May
Cumberland, IA
- Average UV index in May: 5
The months with the highest UV index are June, July and August (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
Cumberland, IA
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in May
Cumberland, IA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
