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Monthly climate in Lee, Maine, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Lee features a humid continental climate (Dfb).Temperatures typically range between -7 °C (20 °F) and 20 °C (69 °F) through the year, but rarely can drop to -29 °C (-20 °F) or can rise to as high as 35 °C (95 °F).The average annual precipitation amounts to about 1177 mm (46.3 inches) and receives 126 rainy days on the 1 mm (0.04 inches) threshold annually.Lee enjoys an average of 2881 hours of sunshine throughout the year, and daylight varies from 8 hours 46 minutes to 15 hours 35 minutes per day.

Monthly average temperatures in Lee, Maine, United States §

The warmest months in Lee are June, July and August, with daily mean temperatures ranging from 17 to 20 °C (63 - 69 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -7 to -4 °C (20 - 24 °F) throughout the day. On average each year, Lee experiences 48 days above 25 °C (77.0 °F) and 140 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Lee, Maine, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 12°C
(53°F)		 15°C
(59°F)		 19°C
(67°F)		 24°C
(75°F)		 33°C
(92°F)		 35°C
(95°F)		 35°C
(95°F)		 33°C
(92°F)		 32°C
(90°F)		 25°C
(78°F)		 23°C
(73°F)		 15°C
(59°F)
Mean maximum 8°C
(47°F)		 10°C
(50°F)		 12°C
(54°F)		 19°C
(67°F)		 29°C
(85°F)		 30°C
(86°F)		 32°C
(90°F)		 33°C
(91°F)		 28°C
(83°F)		 23°C
(73°F)		 18°C
(64°F)		 13°C
(55°F)
Average high -2°C
(28°F)		 -1°C
(30°F)		 3°C
(38°F)		 10°C
(51°F)		 18°C
(64°F)		 23°C
(74°F)		 26°C
(79°F)		 26°C
(79°F)		 21°C
(71°F)		 14°C
(58°F)		 6°C
(43°F)		 -0°C
(32°F)
Daily mean -7°C
(20°F)		 -6°C
(22°F)		 -2°C
(29°F)		 5°C
(42°F)		 12°C
(53°F)		 17°C
(63°F)		 20°C
(69°F)		 20°C
(68°F)		 16°C
(60°F)		 9°C
(49°F)		 2°C
(35°F)		 -4°C
(24°F)
Average low -12°C
(11°F)		 -11°C
(12°F)		 -6°C
(21°F)		 1°C
(34°F)		 6°C
(43°F)		 11°C
(52°F)		 15°C
(59°F)		 15°C
(59°F)		 11°C
(51°F)		 5°C
(41°F)		 -2°C
(28°F)		 -8°C
(17°F)
Mean minimum -22°C
(-8°F)		 -22°C
(-8°F)		 -19°C
(-1°F)		 -6°C
(22°F)		 0°C
(33°F)		 5°C
(41°F)		 10°C
(50°F)		 9°C
(48°F)		 3°C
(38°F)		 -2°C
(29°F)		 -12°C
(11°F)		 -19°C
(-3°F)
Minimum -29°C
(-20°F)		 -25°C
(-13°F)		 -22°C
(-8°F)		 -10°C
(15°F)		 -1°C
(30°F)		 2°C
(36°F)		 8°C
(47°F)		 7°C
(45°F)		 -0°C
(32°F)		 -6°C
(21°F)		 -17°C
(1°F)		 -25°C
(-13°F)

Compare climate in Lee with other places

Compare temperature, precipitation, sunshine, UV index in Lee, Maine, United States with other places around the world.

Monthly average precipitation in Lee, Maine, United States §

Lee usually has the most precipitation in April, November and December, with an average of 11 rainy days and 120 mm (4.7 inches) of precipitation per month.The driest months in Lee are March, August and September. On average, 79 mm (3.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Lee, Maine, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 93 (3.6) 84 (3.3) 73 (2.9) 120 (4.7) 101 (4.0) 90 (3.5) 97 (3.8) 82 (3.2) 82 (3.2) 114 (4.5) 124 (4.9) 118 (4.6)
Average precipitation days (≥ 1 mm) 9 11 9 13 11 11 11 10 8 11 12 10

Monthly sunshine hours in Lee, Maine, United States §

The sunniest months in Lee are June, July and August, when the sun shines an average of 10 hours 25 minutes a day.Least sunny months in Lee: January, November and December receive an average of 5 hours 14 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Lee, Maine, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 137 188 248 233 286 316 323 319 278 205 175 168
Mean daily daylight hours 9h 9m 10h 24m 11h 57m 13h 32m 14h 54m 15h 35m 15h 13m 14h 0m 12h 28m 10h 53m 9h 29m 8h 46m

Solar UV radiation in Lee, Maine, United States §

Lee experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 8 - 10, which corresponds to the Very High category of sun exposure.January, November and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Lee UV Index data.

Average daily maximum UV levels by month for Lee, Maine, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 2 4 5 7 9 10 8 8 7 5 3 2