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Monthly climate in Harmony, Maine, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Harmony features a humid continental climate (Dfb).Temperatures typically range between -7 °C (19 °F) and 20 °C (69 °F) through the year, but rarely can drop to -31 °C (-23 °F) or can rise to as high as 36 °C (96 °F).The average annual precipitation amounts to about 1173 mm (46.2 inches) and receives 125 rainy days on the 1 mm (0.04 inches) threshold annually.Harmony enjoys an average of 2863 hours of sunshine throughout the year, and daylight varies from 8 hours 49 minutes to 15 hours 31 minutes per day.

Monthly average temperatures in Harmony, Maine, United States §

The warmest months in Harmony are June, July and August, with daily mean temperatures ranging from 17 to 20 °C (64 - 69 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -7 to -5 °C (19 - 24 °F) throughout the day. On average each year, Harmony experiences 46 days above 25 °C (77.0 °F) and 143 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Harmony, 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
(54°F)		 13°C
(56°F)		 19°C
(67°F)		 24°C
(75°F)		 33°C
(91°F)		 35°C
(95°F)		 36°C
(96°F)		 33°C
(92°F)		 32°C
(90°F)		 25°C
(78°F)		 22°C
(73°F)		 15°C
(59°F)
Mean maximum 8°C
(47°F)		 10°C
(50°F)		 12°C
(54°F)		 20°C
(68°F)		 29°C
(85°F)		 30°C
(87°F)		 32°C
(90°F)		 32°C
(90°F)		 28°C
(84°F)		 23°C
(74°F)		 17°C
(63°F)		 12°C
(54°F)
Average high -3°C
(27°F)		 -1°C
(30°F)		 3°C
(38°F)		 10°C
(50°F)		 18°C
(64°F)		 23°C
(74°F)		 26°C
(79°F)		 25°C
(78°F)		 21°C
(71°F)		 14°C
(57°F)		 5°C
(42°F)		 -1°C
(31°F)
Daily mean -7°C
(19°F)		 -6°C
(21°F)		 -2°C
(29°F)		 5°C
(42°F)		 12°C
(54°F)		 17°C
(64°F)		 20°C
(69°F)		 20°C
(68°F)		 16°C
(60°F)		 9°C
(49°F)		 1°C
(34°F)		 -5°C
(24°F)
Average low -12°C
(11°F)		 -11°C
(12°F)		 -6°C
(21°F)		 1°C
(33°F)		 6°C
(43°F)		 11°C
(53°F)		 15°C
(59°F)		 14°C
(58°F)		 11°C
(51°F)		 5°C
(41°F)		 -3°C
(27°F)		 -9°C
(16°F)
Mean minimum -23°C
(-9°F)		 -22°C
(-8°F)		 -19°C
(-2°F)		 -6°C
(21°F)		 -0°C
(32°F)		 5°C
(42°F)		 9°C
(49°F)		 8°C
(47°F)		 2°C
(37°F)		 -2°C
(29°F)		 -13°C
(10°F)		 -20°C
(-4°F)
Minimum -31°C
(-23°F)		 -26°C
(-15°F)		 -23°C
(-9°F)		 -11°C
(12°F)		 -2°C
(29°F)		 1°C
(35°F)		 7°C
(46°F)		 6°C
(44°F)		 -0°C
(32°F)		 -4°C
(24°F)		 -18°C
(0°F)		 -26°C
(-14°F)

Compare climate in Harmony with other places

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

Monthly average precipitation in Harmony, Maine, United States §

Harmony usually has the most precipitation in April, October and December, with an average of 11 rainy days and 125 mm (4.9 inches) of precipitation per month.The driest months in Harmony are March, August and September. On average, 76 mm (3.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Harmony, 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) 88 (3.5) 83 (3.3) 75 (2.9) 126 (5.0) 95 (3.7) 85 (3.4) 103 (4.1) 81 (3.2) 74 (2.9) 129 (5.1) 115 (4.5) 120 (4.7)
Average precipitation days (≥ 1 mm) 9 10 9 13 10 11 12 11 8 11 11 10

Monthly sunshine hours in Harmony, Maine, United States §

The sunniest months in Harmony are June, July and August, when the sun shines an average of 10 hours 34 minutes a day.Least sunny months in Harmony: January, November and December receive an average of 5 hours 5 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Harmony, 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 134 181 248 224 283 323 324 324 285 197 170 164
Mean daily daylight hours 9h 12m 10h 25m 11h 57m 13h 31m 14h 51m 15h 31m 15h 9m 13h 58m 12h 27m 10h 54m 9h 32m 8h 49m

Solar UV radiation in Harmony, Maine, United States §

Harmony experiences the highest level of ultraviolet (UV) radiation in April, May and June, 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 Harmony UV Index data.

Average daily maximum UV levels by month for Harmony, 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 8 9 10 8 8 7 5 3 2