May weather forecastHarmony, ME
May
Weather in May
The last month of the spring, May, is a refreshing month in Harmony, Maine, with an average temperature ranging between min 42.6°F (5.9°C) and max 62.4°F (16.9°C).Temperature
Harmony sees a rise in temperature during May, with average high-temperatures transitioning from a chilly 49.1°F (9.5°C) in April to a refreshing 62.4°F (16.9°C). Harmony experiences an average low-temperature of 42.6°F (5.9°C) in month of May.Humidity
May and November, with an average relative humidity of 77%, are the least humid months.Rainfall
In May, the rain falls for 14.4 days. Throughout May, 1.42" (36mm) of precipitation is accumulated. Throughout the year, there are 120.7 rainfall days, and 15.79" (401mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Harmony aggregates 0.16" (4mm) of snow. In Harmony, during the entire year, snow falls for 48.1 days and aggregates up to 17.32" (440mm) of snow.Daylight
In Harmony, the average length of the day in May is 14h and 52min.On the first day of the month, sunrise is at 5:26 am and sunset at 7:44 pm. On the last day of May, in Harmony, sunrise is at 4:54 am and sunset at 8:17 pm EDT.
Sunshine
In Harmony, the average sunshine in May is 7.5h.UV index
In Harmony, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 4 in May leads to these recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Harmony, ME
- Average high temperature in May: 62.4°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in May: 42.6°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in May
Harmony, ME
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Harmony, ME
- Average wind speed in May: 6.6mph
The windiest month (with the highest average wind speed) is March (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in May
Harmony, ME
- Average humidity in May: 77%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are May and November (77%).
Average rainfall in May
Harmony, ME
- Average rainfall in May: 1.42"
The wettest months (with the highest rainfall) are April, June and October (1.73").
The driest months (with the least rainfall) are February and March (0.91").
Average rainfall days in May
Harmony, ME
- Average rainfall days in May: 14.4 days
The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in May
Harmony, ME
- Average snowfall in May: 0.16"
The month with the highest snowfall is February (4.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Harmony, ME
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Harmony, ME
- Average daylight in May: 14h and 54min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in May: 7h and 30min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in May
Harmony, ME
- Average sunshine days in May: 14.2 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in May
Harmony, ME
- 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, March, October, November and December (UV index 2).
Average cloud cover in May
Harmony, ME
- Average cloud cover in May: 52
The month with the most cloud cover is February (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 40).
Average visibility in May
Harmony, ME
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).





