May weather forecastCedar Falls, IA
May
Weather in May
The weather in May in Cedar Falls, Iowa, extends the gentle warmth of spring throughout the month. Comfortable temperatures create a pleasant atmosphere, eliminating the need for heavy winter clothing. With the highest rainfall of 4.25" (108mm), May outpours April, lending to a damp atmosphere. The greenery attains a lush vibrance, filling the town with the spirit of spring. Overcast days are balanced by an increase in sunlight hours.Temperature
May shows a rise in the average high-temperature, moving from April's refreshing 56.5°F (13.6°C) to a pleasant 68.2°F (20.1°C). May witnesses an average nighttime temperature of 51.6°F (10.9°C).Humidity
In Cedar Falls, the average relative humidity in May is 77%.Rainfall
May is the month with the most rainfall. Rain falls for 16.9 days and accumulates 4.25" (108mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Cedar Falls. May is the last month it regularly snows. During 0.2 snowfall days, in May, Cedar Falls aggregates 0.16" (4mm) of snow. In Cedar Falls, during the entire year, snow falls for 41.5 days and aggregates up to 17.56" (446mm) of snow.Daylight
In Cedar Falls, the average length of the day in May is 14h and 38min.On the first day of May, sunrise is at 6:03 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:40 pm CDT.
Sunshine
In Cedar Falls, the average sunshine in May is 8.4h.UV index
In Cedar Falls, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average UV index of 5 in May transforms into this advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Cedar Falls, IA
- Average high temperature in May: 68.2°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in May: 51.6°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°F).
Average pressure in May
Cedar Falls, 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
Cedar Falls, IA
- Average wind speed in May: 9.3mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in May
Cedar Falls, IA
- Average humidity in May: 77%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Cedar Falls, IA
- Average rainfall in May: 4.25"
The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in May
Cedar Falls, IA
- Average rainfall days in May: 16.9 days
The month with the highest number of rainy days is June (17 days).
The months with the least rainy days are January and February (4.2 days).
Average snowfall in May
Cedar Falls, IA
- Average snowfall in May: 0.16"
The month with the highest snowfall is January (4.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Cedar Falls, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Cedar Falls, IA
- Average daylight in May: 14h and 36min
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 24min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in May
Cedar Falls, IA
- Average sunshine days in May: 12.9 days
The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in May
Cedar Falls, IA
- Average UV index in May: 5
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Cedar Falls, IA
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in May
Cedar Falls, IA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).





