May weather forecastTrenton, MI
May
Weather in May
May, the last month of the spring in Trenton, is a comfortable month, with an average temperature fluctuating between 50.5°F (10.3°C) and 64.2°F (17.9°C).Temperature
An upsurge in temperatures occurs as April gives way to May, with average highs shifting from a cool 52.3°F (11.3°C) to a refreshing 64.2°F (17.9°C). An average temperature of 50.5°F (10.3°C) marks the nights in May.Humidity
The average relative humidity in May is 77%.Rainfall
In May, the rain falls for 18 days. Throughout May, 3.35" (85mm) of precipitation is accumulated. In Trenton, during the entire year, the rain falls for 151.6 days and collects up to 26.97" (685mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Trenton aggregates 0.12" (3mm) of snow. Throughout the year, there are 37.5 snowfall days, and 12.24" (311mm) of snow is accumulated.Ocean temperature
In Trenton, the average seawater temperature in May is 48.9°F (9.4°C).Note: Navigating the 48.9°F (9.4°C) at 55.4°F (13°C) is no joy, and temperatures less than 50°F (10°C) can threaten breathing and cause a chilling shock, gauging personal stamina.
Daylight
In May, the average length of the day is 14h and 36min.On the first day of May, sunrise is at 6:27 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 9:01 pm EDT.
Sunshine
The average sunshine in May is 9h.UV index
In Trenton, Michigan, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: A maximum high daily UV index of 5 during May translates into the following directions:
Ensure safety - Recommendations to avert sunburn are presented. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Trenton, MI
- Average high temperature in May: 64.2°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in May: 50.5°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in May
Trenton, MI
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Trenton, MI
- Average wind speed in May: 8.5mph
The windiest months (with the highest average wind speed) are January and November (10.8mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in May
Trenton, MI
- Average humidity in May: 77%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is October (75%).
Average rainfall in May
Trenton, MI
- Average rainfall in May: 3.35"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is December (1.26").
Average rainfall days in May
Trenton, MI
- Average rainfall days in May: 18 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in May
Trenton, MI
- Average snowfall in May: 0.12"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Trenton, MI
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in May
Trenton, MI
- Average sea temperature in May: 48.9°F
The best month for swimming (with the highest average sea temperature) is August (75.4°F).
The coldest month (with the lowest average sea temperature) is February (32.7°F).
Average daylight in May /
Average sunshine in May
Trenton, MI
- Average daylight in May: 14h and 36min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in May
Trenton, MI
- Average sunshine days in May: 11.2 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in May
Trenton, MI
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Trenton, MI
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in May
Trenton, MI
- 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).





