May weather forecastBettendorf, IA
May
Weather in May
As May settles in, we can see a clear shift from the cool weather to milder, more enjoyable temperatures around 70.3°F (21.3°C). Rainfall is at its annual peak this month, with an average accumulation of approximately 4.49 in, leading to lush green expanses and blooming flower beds. The sunshine hours and daylight periods continue to increase, bringing more warmth and brightness to the city. The diminishing snowfall rates seen over previous months continue, with the month seeing no snowfall whatsoever. The blooming city, complemented by the pleasant weather and increasing sunshine, makes May one of the most enjoyable months in Bettendorf.Temperature
The arrival of May in Bettendorf brings an increase in high-temperatures, moving from a refreshing 59°F (15°C) in April to a pleasant 70.3°F (21.3°C). Bettendorf's average low-temperature in the month of May is recorded at a cool 53.2°F (11.8°C).Humidity
In Bettendorf, the average relative humidity in May is 77%.Rainfall
May is the month with the most rainfall. Rain falls for 17.5 days and accumulates 4.49" (114mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In May, the average length of the day is 14h and 32min.On the first day of the month, sunrise is at 5:57 am and sunset at 8:00 pm. On the last day of May, sunrise is at 5:30 am and sunset at 8:29 pm CDT.
Sunshine
In May, the average sunshine is 8.6h.UV index
The average daily maximum UV index in May 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: A daily maximum UV index of 5 in May translates into the following instructions:
Exercise prevention - Precautions against solar damage are endorsed. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Bettendorf, IA
- Average high temperature in May: 70.3°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 (28°F).
- Average low temperature in May: 53.2°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).
Average pressure in May
Bettendorf, IA
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Bettendorf, IA
- Average wind speed in May: 9mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in May
Bettendorf, IA
- Average humidity in May: 77%
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Bettendorf, IA
- Average rainfall in May: 4.49"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is February (1.1").
Average rainfall days in May
Bettendorf, IA
- Average rainfall days in May: 17.5 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in May
Bettendorf, IA
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Bettendorf, IA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (10.9 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
Bettendorf, 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 12min).
- Average sunshine in May: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in May
Bettendorf, IA
- Average sunshine days in May: 11.4 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in May
Bettendorf, IA
- Average UV index in May: 5
The months with the highest UV index are July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Bettendorf, IA
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in May
Bettendorf, 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).
