nomadseason

Monthly climate in Porter, Maine, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Porter features a humid continental climate (Dfb).Temperatures typically range between -5 °C (23 °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 35 °C (96 °F).The average annual precipitation amounts to about 1212 mm (47.7 inches) and receives 126 rainy days on the 1 mm (0.04 inches) threshold annually.Porter enjoys an average of 2956 hours of sunshine throughout the year, and daylight varies from 8 hours 57 minutes to 15 hours 23 minutes per day.

Monthly average temperatures in Porter, Maine, United States §

The warmest months in Porter 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 (23 - 27 °F) throughout the day. On average each year, Porter experiences 57 days above 25 °C (77.0 °F) and 125 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Porter, 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 14°C
(58°F)		 19°C
(67°F)		 18°C
(65°F)		 26°C
(80°F)		 33°C
(92°F)		 35°C
(96°F)		 35°C
(96°F)		 34°C
(93°F)		 31°C
(89°F)		 27°C
(81°F)		 23°C
(73°F)		 15°C
(59°F)
Mean maximum 10°C
(50°F)		 13°C
(56°F)		 15°C
(59°F)		 21°C
(70°F)		 31°C
(87°F)		 31°C
(87°F)		 33°C
(91°F)		 32°C
(90°F)		 30°C
(85°F)		 24°C
(76°F)		 19°C
(66°F)		 13°C
(55°F)
Average high -1°C
(31°F)		 1°C
(34°F)		 5°C
(41°F)		 11°C
(52°F)		 18°C
(65°F)		 24°C
(76°F)		 27°C
(80°F)		 26°C
(79°F)		 22°C
(73°F)		 15°C
(60°F)		 7°C
(45°F)		 1°C
(35°F)
Daily mean -5°C
(23°F)		 -4°C
(25°F)		 -0°C
(32°F)		 6°C
(44°F)		 13°C
(56°F)		 19°C
(66°F)		 22°C
(71°F)		 21°C
(70°F)		 17°C
(63°F)		 11°C
(51°F)		 3°C
(37°F)		 -3°C
(27°F)
Average low -10°C
(14°F)		 -9°C
(16°F)		 -5°C
(24°F)		 2°C
(36°F)		 8°C
(46°F)		 13°C
(56°F)		 17°C
(63°F)		 16°C
(62°F)		 12°C
(55°F)		 7°C
(44°F)		 -1°C
(30°F)		 -7°C
(20°F)
Mean minimum -22°C
(-7°F)		 -20°C
(-4°F)		 -16°C
(3°F)		 -4°C
(25°F)		 2°C
(35°F)		 8°C
(47°F)		 12°C
(54°F)		 10°C
(51°F)		 5°C
(41°F)		 -0°C
(31°F)		 -10°C
(14°F)		 -19°C
(-1°F)
Minimum -27°C
(-16°F)		 -25°C
(-12°F)		 -18°C
(-1°F)		 -6°C
(21°F)		 0°C
(33°F)		 4°C
(39°F)		 10°C
(50°F)		 9°C
(48°F)		 1°C
(34°F)		 -3°C
(26°F)		 -16°C
(4°F)		 -26°C
(-14°F)

Compare climate in Porter with other places

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

Monthly average precipitation in Porter, Maine, United States §

Porter usually has the most precipitation in April, July and October, with an average of 12 rainy days and 135 mm (5.3 inches) of precipitation per month.The driest months in Porter are March, May and September. On average, 74 mm (2.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Porter, 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) 81 (3.2) 90 (3.6) 78 (3.1) 131 (5.2) 78 (3.1) 95 (3.7) 148 (5.8) 86 (3.4) 65 (2.6) 127 (5.0) 113 (4.4) 120 (4.7)
Average precipitation days (≥ 1 mm) 9 11 8 13 11 10 13 11 8 11 11 10

Monthly sunshine hours in Porter, Maine, United States §

The sunniest months in Porter are June, July and August, when the sun shines an average of 10 hours 47 minutes a day.Least sunny months in Porter: January, February and December receive an average of 5 hours 29 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Porter, 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 146 178 253 238 284 327 329 335 289 211 186 173
Mean daily daylight hours 9h 19m 10h 29m 11h 57m 13h 28m 14h 44m 15h 23m 15h 2m 13h 53m 12h 27m 10h 57m 9h 38m 8h 57m

Solar UV radiation in Porter, Maine, United States §

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

Average daily maximum UV levels by month for Porter, 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) 3 4 5 8 9 10 9 9 7 5 3 2