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Monthly climate in Saco, Maine, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Saco features a humid continental climate (Dfb).Temperatures typically range between -2 °C (28 °F) and 22 °C (72 °F) through the year, but rarely can drop to -21 °C (-6 °F) or can rise to as high as 35 °C (95 °F).The average annual precipitation amounts to about 1129 mm (44.4 inches) and receives 116 rainy days on the 1 mm (0.04 inches) threshold annually.Saco enjoys an average of 2989 hours of sunshine throughout the year, and daylight varies from 8 hours 58 minutes to 15 hours 21 minutes per day.

Monthly average temperatures in Saco, Maine, United States §

The warmest months in Saco are June, July and August, with daily mean temperatures ranging from 19 to 22 °C (66 - 72 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -2 to 0 °C (28 - 33 °F) throughout the day. On average each year, Saco experiences 49 days above 25 °C (77.0 °F) and 101 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Saco, 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 16°C
(61°F)		 20°C
(68°F)		 20°C
(68°F)		 29°C
(84°F)		 33°C
(92°F)		 35°C
(95°F)		 34°C
(93°F)		 33°C
(92°F)		 32°C
(90°F)		 28°C
(82°F)		 23°C
(73°F)		 15°C
(59°F)
Mean maximum 11°C
(53°F)		 13°C
(56°F)		 15°C
(60°F)		 21°C
(69°F)		 30°C
(86°F)		 30°C
(87°F)		 33°C
(91°F)		 31°C
(88°F)		 29°C
(85°F)		 25°C
(77°F)		 20°C
(68°F)		 13°C
(56°F)
Average high 1°C
(35°F)		 2°C
(37°F)		 6°C
(42°F)		 11°C
(53°F)		 18°C
(64°F)		 23°C
(74°F)		 26°C
(79°F)		 26°C
(79°F)		 22°C
(73°F)		 16°C
(61°F)		 9°C
(48°F)		 3°C
(38°F)
Daily mean -2°C
(28°F)		 -2°C
(29°F)		 2°C
(35°F)		 7°C
(46°F)		 13°C
(56°F)		 19°C
(66°F)		 22°C
(72°F)		 22°C
(72°F)		 18°C
(65°F)		 12°C
(54°F)		 5°C
(42°F)		 0°C
(33°F)
Average low -6°C
(22°F)		 -6°C
(22°F)		 -2°C
(28°F)		 4°C
(39°F)		 9°C
(48°F)		 14°C
(58°F)		 18°C
(65°F)		 18°C
(65°F)		 14°C
(58°F)		 9°C
(48°F)		 1°C
(35°F)		 -3°C
(27°F)
Mean minimum -17°C
(2°F)		 -16°C
(3°F)		 -14°C
(8°F)		 -2°C
(29°F)		 3°C
(38°F)		 9°C
(48°F)		 14°C
(58°F)		 12°C
(55°F)		 8°C
(46°F)		 2°C
(36°F)		 -8°C
(18°F)		 -12°C
(10°F)
Minimum -21°C
(-6°F)		 -18°C
(-0°F)		 -18°C
(-0°F)		 -4°C
(26°F)		 2°C
(35°F)		 5°C
(41°F)		 13°C
(56°F)		 11°C
(52°F)		 5°C
(41°F)		 -0°C
(32°F)		 -12°C
(11°F)		 -20°C
(-4°F)

Compare climate in Saco with other places

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

Monthly average precipitation in Saco, Maine, United States §

Saco 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 Saco are June, August and September. On average, 68 mm (2.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Saco, 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) 80 (3.2) 90 (3.6) 81 (3.2) 122 (4.8) 71 (2.8) 70 (2.8) 120 (4.7) 65 (2.5) 70 (2.8) 128 (5.0) 107 (4.2) 125 (4.9)
Average precipitation days (≥ 1 mm) 8 10 10 12 9 9 11 9 7 11 10 10

Monthly sunshine hours in Saco, Maine, United States §

The sunniest months in Saco are June, July and August, when the sun shines an average of 10 hours 50 minutes a day.Least sunny months in Saco: January, February and December receive an average of 5 hours 32 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Saco, 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 147 182 255 243 294 329 332 335 287 216 190 173
Mean daily daylight hours 9h 20m 10h 30m 11h 58m 13h 27m 14h 43m 15h 21m 15h 0m 13h 52m 12h 26m 10h 57m 9h 39m 8h 58m

Solar UV radiation in Saco, Maine, United States §

Saco 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 Saco UV Index data.

Average daily maximum UV levels by month for Saco, 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