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Monthly climate in Gardiner, Maine, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Gardiner features a humid continental climate (Dfb).Temperatures typically range between -5 °C (24 °F) and 22 °C (71 °F) through the year, but rarely can drop to -27 °C (-16 °F) or can rise to as high as 37 °C (99 °F).The average annual precipitation amounts to about 1105 mm (43.5 inches) and receives 118 rainy days on the 1 mm (0.04 inches) threshold annually.Gardiner enjoys an average of 2920 hours of sunshine throughout the year, and daylight varies from 8 hours 54 minutes to 15 hours 26 minutes per day.

Monthly average temperatures in Gardiner, Maine, United States §

The warmest months in Gardiner are June, July and August, with daily mean temperatures ranging from 19 to 22 °C (66 - 71 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -5 to -3 °C (24 - 28 °F) throughout the day. On average each year, Gardiner experiences 57 days above 25 °C (77.0 °F) and 124 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Gardiner, 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 13°C
(56°F)		 18°C
(65°F)		 18°C
(66°F)		 26°C
(80°F)		 34°C
(93°F)		 37°C
(99°F)		 36°C
(98°F)		 34°C
(94°F)		 32°C
(90°F)		 28°C
(83°F)		 22°C
(72°F)		 15°C
(60°F)
Mean maximum 10°C
(51°F)		 13°C
(56°F)		 14°C
(58°F)		 21°C
(70°F)		 30°C
(87°F)		 31°C
(89°F)		 34°C
(93°F)		 33°C
(92°F)		 30°C
(86°F)		 24°C
(76°F)		 18°C
(65°F)		 13°C
(56°F)
Average high -0°C
(31°F)		 1°C
(34°F)		 5°C
(41°F)		 12°C
(53°F)		 18°C
(65°F)		 24°C
(76°F)		 27°C
(81°F)		 27°C
(80°F)		 22°C
(73°F)		 15°C
(60°F)		 7°C
(45°F)		 1°C
(35°F)
Daily mean -5°C
(24°F)		 -4°C
(25°F)		 -0°C
(32°F)		 7°C
(44°F)		 13°C
(55°F)		 19°C
(66°F)		 22°C
(71°F)		 21°C
(70°F)		 17°C
(63°F)		 11°C
(52°F)		 3°C
(38°F)		 -3°C
(28°F)
Average low -9°C
(15°F)		 -9°C
(16°F)		 -5°C
(24°F)		 2°C
(37°F)		 8°C
(46°F)		 13°C
(56°F)		 17°C
(63°F)		 16°C
(62°F)		 13°C
(55°F)		 7°C
(44°F)		 -1°C
(30°F)		 -7°C
(20°F)
Mean minimum -22°C
(-7°F)		 -22°C
(-7°F)		 -17°C
(2°F)		 -4°C
(25°F)		 2°C
(37°F)		 8°C
(46°F)		 12°C
(54°F)		 10°C
(51°F)		 5°C
(41°F)		 -0°C
(32°F)		 -10°C
(13°F)		 -19°C
(-1°F)
Minimum -26°C
(-15°F)		 -25°C
(-13°F)		 -22°C
(-7°F)		 -6°C
(22°F)		 1°C
(34°F)		 4°C
(40°F)		 9°C
(49°F)		 9°C
(49°F)		 2°C
(36°F)		 -2°C
(28°F)		 -17°C
(2°F)		 -27°C
(-16°F)

Compare climate in Gardiner with other places

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

Monthly average precipitation in Gardiner, Maine, United States §

Gardiner usually has the most precipitation in April, October and December, with an average of 11 rainy days and 120 mm (4.7 inches) of precipitation per month.The driest months in Gardiner are March, June and September. On average, 69 mm (2.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Gardiner, 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) 84 (3.3) 83 (3.3) 71 (2.8) 117 (4.6) 78 (3.1) 63 (2.5) 110 (4.3) 77 (3.0) 72 (2.8) 127 (5.0) 106 (4.2) 116 (4.6)
Average precipitation days (≥ 1 mm) 8 10 8 12 10 9 11 9 8 11 11 11

Monthly sunshine hours in Gardiner, Maine, United States §

The sunniest months in Gardiner are June, July and August, when the sun shines an average of 10 hours 32 minutes a day.Least sunny months in Gardiner: January, November and December receive an average of 5 hours 25 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Gardiner, 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 145 185 255 235 283 320 320 327 284 207 180 173
Mean daily daylight hours 9h 16m 10h 28m 11h 57m 13h 29m 14h 47m 15h 26m 15h 5m 13h 55m 12h 27m 10h 55m 9h 35m 8h 54m

Solar UV radiation in Gardiner, Maine, United States §

Gardiner experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 9 - 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 Gardiner UV Index data.

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