May weather forecastSaint Helen, MI
May
Weather in May
The last month of the spring, May, is a comfortable month in Saint Helen, Michigan, with an average temperature ranging between max 64.8°F (18.2°C) and min 44.8°F (7.1°C).Temperature
A clear escalation in the average high-temperature marks the arrival of May, surging from a cool 50.4°F (10.2°C) in April to a comfortable 64.8°F (18.2°C). During the month of May, the temperature in Saint Helen falls to an average of 44.8°F (7.1°C).Humidity
May is the least humid month, with an average relative humidity of 72%.Rainfall
The wettest months in Saint Helen are May and October, with an average 2.68" (68mm) of rainfall.Snowfall
Months with snowfall in Saint Helen are January through May, October through December. May is the last month it regularly snows. During 0.5 snowfall days, in May, Saint Helen aggregates 0.16" (4mm) of snow. Throughout the year, there are 83.9 snowfall days, and 28.27" (718mm) of snow is accumulated.Daylight
The average length of the day in May in Saint Helen is 14h and 49min.On the first day of the month, sunrise is at 6:27 am and sunset at 8:42 pm. On the last day of May, sunrise is at 5:56 am and sunset at 9:14 pm EDT.
Sunshine
In May, the average sunshine in Saint Helen, Michigan, is 8.8h.UV index
In May, the average daily maximum UV index in Saint Helen is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: An average UV index of 4 in May transforms into this advice:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Saint Helen, MI
- Average high temperature in May: 64.8°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in May: 44.8°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure in May
Saint Helen, MI
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Saint Helen, MI
- Average wind speed in May: 7.4mph
The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in May
Saint Helen, MI
- Average humidity in May: 72%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is May (72%).
Average rainfall in May
Saint Helen, MI
- Average rainfall in May: 2.68"
The wettest months (with the highest rainfall) are May and October (2.68").
The driest month (with the least rainfall) is September (0.98").
Average rainfall days in May
Saint Helen, MI
- Average rainfall days in May: 14.6 days
The month with the highest number of rainy days is October (16.3 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in May
Saint Helen, MI
- Average snowfall in May: 0.16"
The month with the highest snowfall is January (8.03").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Saint Helen, MI
- Average snowfall days in May: 0.5 days
The month with the highest number of snowfall days is January (21 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Saint Helen, MI
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 12min).
Average sunshine days in May
Saint Helen, MI
- Average sunshine days in May: 14.5 days
The month with the most sunshine days is September (16.4 days).
The month with the least sunshine days is February (8.8 days).
Average UV index in May
Saint Helen, MI
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in May
Saint Helen, MI
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in May
Saint Helen, MI
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, October and November (6mi).
The month with the lowest visibility is January (4mi).
