May weather forecastTopsham, ME
May
Weather in May
May, the last month of the spring in Topsham, is a mild month, with an average temperature varying between 58.8°F (14.9°C) and 46°F (7.8°C).Temperature
Noticing a change, the average high-temperature during May moves from April's chilly 48.9°F (9.4°C) to a mild 58.8°F (14.9°C). An average nighttime temperature of 46°F (7.8°C) is noted during the month of May.Humidity
The average relative humidity in May is 80%.Rainfall
In Topsham, in May, during 12.6 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Topsham, during the entire year, the rain falls for 115.5 days and collects up to 15.51" (394mm) of precipitation.Snowfall
In Topsham, Maine, snow does not fall in May through September.Daylight
In Topsham, the average length of the day in May is 14h and 46min.On the first day of May, sunrise is at 5:30 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 5:00 am and sunset at 8:15 pm EDT.
Sunshine
In Topsham, the average sunshine in May is 8.2h.UV index
In Topsham, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, the average maximum UV index of 4 translates into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Topsham, ME
- Average high temperature in May: 58.8°F
The warmest months (with the highest average high temperature) are July and August (73.4°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in May: 46°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in May
Topsham, ME
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is September (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Topsham, ME
- Average wind speed in May: 8.5mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in May
Topsham, ME
- Average humidity in May: 80%
The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is November (75%).
Average rainfall in May
Topsham, ME
- Average rainfall in May: 1.26"
The wettest month (with the highest rainfall) is October (1.85").
The driest month (with the least rainfall) is September (0.75").
Average rainfall days in May
Topsham, ME
- Average rainfall days in May: 12.6 days
The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in May
Topsham, ME
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.95").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Topsham, ME
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Topsham, ME
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 8h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in May
Topsham, ME
- Average sunshine days in May: 16.8 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is April (15 days).
Average UV index in May
Topsham, 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, November and December (UV index 2).
Average cloud cover in May
Topsham, ME
- Average cloud cover in May: 46
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in May
Topsham, ME
- 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).





