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Monthly climate in Rollag, Viken, Norway

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Rollag features a subarctic climate (Dfc).Temperatures typically range between -4 °C (24 °F) and 15 °C (60 °F) through the year, but rarely can drop to -20 °C (-4 °F) or can rise to as high as 29 °C (85 °F).The average annual precipitation amounts to about 1195 mm (47.1 inches) and receives 154 rainy days on the 1 mm (0.04 inches) threshold annually.Rollag enjoys an average of 3296 hours of sunshine throughout the year, and daylight varies from 6 hours 0 minutes to 18 hours 41 minutes per day.

Monthly average temperatures in Rollag, Viken, Norway §

The warmest months in Rollag are June, July and August, with daily mean temperatures ranging from 13 to 15 °C (56 - 60 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -4 to -4 °C (24 - 25 °F) throughout the day. On average each year, Rollag experiences 7 days above 25 °C (77.0 °F) and 167 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Rollag, Viken, Norway.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 8°C
(47°F)		 8°C
(46°F)		 16°C
(61°F)		 21°C
(70°F)		 25°C
(78°F)		 28°C
(83°F)		 29°C
(85°F)		 26°C
(79°F)		 24°C
(75°F)		 17°C
(63°F)		 11°C
(53°F)		 6°C
(43°F)
Mean maximum 5°C
(42°F)		 6°C
(43°F)		 12°C
(53°F)		 15°C
(60°F)		 22°C
(73°F)		 24°C
(75°F)		 25°C
(78°F)		 24°C
(75°F)		 20°C
(69°F)		 14°C
(57°F)		 9°C
(49°F)		 5°C
(41°F)
Average high -2°C
(29°F)		 -1°C
(31°F)		 3°C
(38°F)		 8°C
(46°F)		 13°C
(56°F)		 19°C
(66°F)		 20°C
(68°F)		 18°C
(65°F)		 13°C
(56°F)		 8°C
(46°F)		 2°C
(36°F)		 -2°C
(28°F)
Daily mean -4°C
(24°F)		 -4°C
(25°F)		 -1°C
(30°F)		 3°C
(38°F)		 9°C
(48°F)		 14°C
(58°F)		 15°C
(60°F)		 13°C
(56°F)		 10°C
(50°F)		 4°C
(40°F)		 -1°C
(31°F)		 -4°C
(24°F)
Average low -7°C
(19°F)		 -7°C
(20°F)		 -5°C
(23°F)		 -2°C
(29°F)		 3°C
(38°F)		 9°C
(49°F)		 10°C
(51°F)		 9°C
(48°F)		 6°C
(43°F)		 1°C
(35°F)		 -3°C
(26°F)		 -7°C
(20°F)
Mean minimum -17°C
(2°F)		 -15°C
(5°F)		 -15°C
(6°F)		 -10°C
(14°F)		 -5°C
(24°F)		 5°C
(41°F)		 5°C
(42°F)		 4°C
(39°F)		 1°C
(34°F)		 -6°C
(22°F)		 -12°C
(11°F)		 -16°C
(3°F)
Minimum -19°C
(-2°F)		 -18°C
(0°F)		 -20°C
(-4°F)		 -15°C
(5°F)		 -10°C
(14°F)		 2°C
(36°F)		 4°C
(40°F)		 3°C
(38°F)		 -1°C
(31°F)		 -11°C
(12°F)		 -15°C
(5°F)		 -19°C
(-1°F)

Compare climate in Rollag with other places

Compare temperature, precipitation, sunshine, UV index in Rollag, Viken, Norway with other places around the world.

Monthly average precipitation in Rollag, Viken, Norway §

Rollag usually has the most precipitation in September, October and December, with an average of 16 rainy days and 137 mm (5.4 inches) of precipitation per month.The driest months in Rollag are January, February and April. On average, 59 mm (2.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Rollag, Viken, Norway.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) 63 (2.5) 66 (2.6) 73 (2.9) 48 (1.9) 95 (3.7) 114 (4.5) 114 (4.5) 103 (4.1) 140 (5.5) 155 (6.1) 109 (4.3) 115 (4.5)
Average precipitation days (≥ 1 mm) 10 12 10 8 13 12 13 14 15 17 14 16

Monthly sunshine hours in Rollag, Viken, Norway §

The sunniest months in Rollag are May, June and July, when the sun shines an average of 14 hours 10 minutes a day.Least sunny months in Rollag: January, November and December receive an average of 3 hours 17 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Rollag, Viken, Norway.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 91 175 289 368 413 427 463 384 260 209 125 86
Mean daily daylight hours 6h 48m 9h 9m 11h 51m 14h 37m 17h 11m 18h 41m 17h 52m 15h 29m 12h 47m 10h 3m 7h 29m 6h 0m

Solar UV radiation in Rollag, Viken, Norway §

Rollag experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 5 - 7, which corresponds to the Moderate / High category of sun exposure.January, November and December are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 1. For more detailed information, check out our hourly Rollag UV Index data.

Average daily maximum UV levels by month for Rollag, Viken, Norway.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) 1 2 3 4 5 7 7 5 4 2 1 1