May weather forecastDearborn, MO
May
Weather in May
May, the last month of the spring in Dearborn, is a pleasant month, with an average temperature ranging between min 55.6°F (13.1°C) and max 72.9°F (22.7°C).Temperature
The shift into May is marked by a modest rise in the average high-temperature, moving from April's refreshing 64°F (17.8°C) to an agreeable 72.9°F (22.7°C). In May, Dearborn's temperature tends to fall to an average low of 55.6°F (13.1°C) during the night.Humidity
The months with the highest humidity are May and June, with an average relative humidity of 79%.Rainfall
May is the month with the most rainfall. Rain falls for 16.4 days and accumulates 3.94" (100mm) of precipitation.Snowfall
Months with snowfall in Dearborn are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Dearborn aggregates 0.08" (2mm) of snow. In Dearborn, during the entire year, snow falls for 17.5 days and aggregates up to 7.09" (180mm) of snow.Daylight
In May, the average length of the day is 14h and 22min.On the first day of May, sunrise is at 6:18 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 8:40 pm CDT.
Sunshine
In May, the average sunshine is 8.6h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The average daily UV index of 6 in May transforms into the following instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Dearborn, MO
- Average high temperature in May: 72.9°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in May: 55.6°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in May
Dearborn, MO
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
Dearborn, MO
- Average wind speed in May: 8.2mph
The windiest months (with the highest average wind speed) are February and March (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in May
Dearborn, MO
- Average humidity in May: 79%
The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is October (69%).
Average rainfall in May
Dearborn, MO
- Average rainfall in May: 3.94"
The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days in May
Dearborn, MO
- Average rainfall days in May: 16.4 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in May
Dearborn, MO
- Average snowfall in May: 0.08"
The month with the highest snowfall is February (2.32").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Dearborn, MO
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Dearborn, MO
- Average daylight in May: 14h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in May
Dearborn, MO
- Average sunshine days in May: 12.4 days
The month with the most sunshine days is January (22 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in May
Dearborn, MO
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Dearborn, MO
- Average cloud cover in May: 39
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in May
Dearborn, MO
- 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).





