May weather forecastHeidelberg, MN
May
Weather in May
May, the last month of the spring in Heidelberg, is a comfortable month, with an average temperature varying between 49.6°F (9.8°C) and 66.2°F (19°C).Temperature
May's arrival brings a change in high-temperatures, moving from a cool 53.2°F (11.8°C) in April to a comfortable 66.2°F (19°C). Nighttime temperatures in May average to a chilly 49.6°F (9.8°C).Humidity
The average relative humidity in May is 73%.Rainfall
In Heidelberg, Minnesota, during May, the rain falls for 15.6 days and regularly aggregates up to 3.11" (79mm) of precipitation. In Heidelberg, during the entire year, the rain falls for 126.1 days and collects up to 25.55" (649mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.5 snowfall days, in May, Heidelberg aggregates 0.28" (7mm) of snow. In Heidelberg, during the entire year, snow falls for 63.7 days and aggregates up to 27.48" (698mm) of snow.Daylight
The average length of the day in May is 14h and 49min.On the first day of May, sunrise is at 6:03 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:51 pm CDT.
Sunshine
The average sunshine in May is 8.4h.UV index
The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 5 in May interprets into the following advice:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Heidelberg, MN
- Average high temperature in May: 66.2°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (20.7°F).
- Average low temperature in May: 49.6°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (7.5°F).
Average pressure in May
Heidelberg, MN
- Average pressure in May: 29.93"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
Heidelberg, MN
- Average wind speed in May: 8.4mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in May
Heidelberg, MN
- Average humidity in May: 73%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and October (72%).
Average rainfall in May
Heidelberg, MN
- Average rainfall in May: 3.11"
The wettest month (with the highest rainfall) is June (3.82").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in May
Heidelberg, MN
- Average rainfall days in May: 15.6 days
The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is February (2.4 days).
Average snowfall in May
Heidelberg, MN
- Average snowfall in May: 0.28"
The month with the highest snowfall is February (6.85").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Heidelberg, MN
- Average snowfall days in May: 0.5 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Heidelberg, MN
- 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 24min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in May
Heidelberg, MN
- Average sunshine days in May: 13.7 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in May
Heidelberg, MN
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in May
Heidelberg, MN
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in May
Heidelberg, MN
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
