Climate - Roros (Norway)
Average weather, temperature, rainfall, sunshine hours
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Climate chart - Roros (Norway)
The climate of Roros is subarctic, with very cold winters and cool summers.
The town is located in central Norway, 650 meters (2,100 ft) above sea level, in Trøndelag county, about 35 km (21 mi) from the border with Sweden.
We are in a very cold area because the mountains to the west block the mild Atlantic currents.
During polar cold waves, the temperature can drop below -40 °C (-40 °F), a value that is recorded again only in the Norwegian part of Lapland, in Finnmark. The coldest record is -47.5 °C (-53.5 °F) and was set in January 1941. In 2010, the temperature dropped down to -42 °C (-43.5 °F) in January and to -38 °C (-36.5 °F) in December, but above all, the cold lasted for long periods, so much so that the average minimum in both months was -24.5 °C (-12 °F).
In summer, there are sometimes strong temperature variations between night and day. At night, the temperature can drop slightly below freezing even in this season. During the day, however, it can sometimes get warm. On average, there are 5 days with highs above 25 °C (77 °F), however, the heat record is 30.7 °C (87 °F), registered in July 2008.
The latitude of Roros is 62°36'N. On the shortest day of the year, December 21st, the sun rises at 9:45 am and sets at 2:40 pm. On the longest day, June 21, the sun rises at 3:15 am and sets at 11:20 pm. The white nights, in which it is not completely dark even at midnight, occur from May 2 to August 10.
Best Time
The best time to visit Roros is the summer, in July and August, since they are the mildest months. However, you must take into account cloudy skies, some rain and a bit of cold at night.
Roros - Climate data
The average temperature of the coldest month (January) is of -9.0 °C (15.9 °F), that of the warmest month (July) is of 12.8 °C (55.0 °F). Here are the average temperatures.Roros - Average temperatures (1991-2020) | Month | Min (°C) | Max (°C) | Mean (°C) | Min (°F) | Max (°F) | Mean (°F) |
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| January | -13.8 | -4.2 | -9 | 7 | 25 | 15.9 |
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| February | -13.4 | -3 | -8.2 | 8 | 27 | 17.3 |
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| March | -10 | 0.8 | -4.6 | 14 | 34 | 23.8 |
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| April | -4.4 | 5.4 | 0.5 | 24 | 42 | 32.9 |
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| May | 0.3 | 11 | 5.6 | 33 | 52 | 42.2 |
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| June | 4.3 | 15.2 | 9.8 | 40 | 59 | 49.6 |
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| July | 7.1 | 18.5 | 12.8 | 45 | 65 | 55 |
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| August | 6.1 | 16.7 | 11.4 | 43 | 62 | 52.6 |
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| September | 2.6 | 12.2 | 7.4 | 37 | 54 | 45.2 |
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| October | -2.4 | 5.2 | 1.4 | 28 | 41 | 34.5 |
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| November | -8.1 | -0.6 | -4.4 | 17 | 31 | 24.1 |
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| December | -13.4 | -3.9 | -8.6 | 8 | 25 | 16.4 |
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| Year | -3.7 | 6.2 | 1.2 | 25.3 | 43.1 | 34 |
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Precipitation amounts to 525 millimeters (20.7 inches) per year: so, it is at an intermediate level. It ranges from 25 mm (1 in) in the driest months (March, April) to 85 mm (3.3 in) in the wettest one (August). Here is the average precipitation.Roros - Average precipitation| Month | Millimeters | Inches | Days |
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| January | 40 | 1.6 | 10 |
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| February | 30 | 1.2 | 8 |
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| March | 25 | 1 | 8 |
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| April | 25 | 1 | 6 |
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| May | 40 | 1.6 | 8 |
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| June | 60 | 2.4 | 11 |
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| July | 70 | 2.8 | 12 |
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| August | 85 | 3.3 | 13 |
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| September | 45 | 1.8 | 10 |
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| October | 40 | 1.6 | 10 |
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| November | 35 | 1.4 | 9 |
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| December | 35 | 1.4 | 10 |
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| Year | 525 | 20.7 | 114 |
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Roros - Weather by month
Based on the period 1991-2020
January, the coldest month of the year, is generally a freezing cold month. The average temperature is of -9.0 °C (16 °F), with a minimum of -13.8 °C (7.2 °F) and a maximum of -4.2 °C (24.5 °F).
On the coldest nights of the month, the temperature usually drops to around -30.5 °C (-23 °F). However, it dropped to -42.1 °C (-43.8 °F) in January 2010.
On the warmest days of the month, the temperature usually reaches around 4 °C (39.5 °F). However, it reached 8.2 °C (46.8 °F) in January 2020.
Precipitation amounts to 40 mm (1.6 in), distributed over 10 days.
The day lasts on average 6 hours and 10 minutes. So the days are short.
The average humidity is 86%. Hence, the air is normally humid.
The average wind speed is 11 kph (7 mph).
February is generally a freezing cold month. The average temperature is of -8.2 °C (17 °F), with a minimum of -13.4 °C (7.9 °F) and a maximum of -3 °C (26.7 °F).
On the coldest nights of the month, the temperature usually drops to around -30 °C (-21.5 °F). However, it dropped to -40 °C (-40 °F) in February 1997.
On the warmest days of the month, the temperature usually reaches around 5 °C (41 °F). However, it reached 10.8 °C (51.4 °F) in February 2012.
Precipitation amounts to 30 mm (1.2 in), distributed over 8 days.
The day lasts on average 8 hours and 55 minutes.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 10 kph (6 mph).
March is generally a very cold month. The average temperature is of -4.6 °C (24 °F), with a minimum of -10 °C (14.1 °F) and a maximum of 0.8 °C (33.5 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -27 °C (-16.5 °F). However, it dropped to -39.4 °C (-38.9 °F) in March 2005.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 8 °C (46 °F). However, it reached 14.5 °C (58.1 °F) in March 2007.
Precipitation amounts to 25 mm (1 in), distributed over 8 days.
The day lasts on average 11 hours and 55 minutes.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).
April is generally a cold month. The average temperature is of 0.5 °C (33 °F), with a minimum of -4.4 °C (24.1 °F) and a maximum of 5.4 °C (41.6 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -16 °C (3.5 °F). However, it dropped to -27 °C (-16.6 °F) in April 2018.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 12.5 °C (54.5 °F). However, it reached 19 °C (66.2 °F) in April 2000.
Precipitation amounts to 25 mm (1 in), distributed over 6 days.
The day lasts on average 15 hours and 0 minutes.
The average humidity is 66%.
The average wind speed is 13 kph (8 mph).
May is generally a quite cold month. The average temperature is of 5.6 °C (42 °F), with a minimum of 0.3 °C (32.5 °F) and a maximum of 11 °C (51.8 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -6.5 °C (20 °F). However, it dropped to -12 °C (10.4 °F) in May 1995.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 20.5 °C (69 °F). However, it reached 26.7 °C (80.1 °F) in May 2018.
Precipitation amounts to 40 mm (1.6 in), distributed over 8 days.
The day lasts on average 18 hours and 0 minutes. So the days are very long.
The average humidity is 59%.
The average wind speed is 15 kph (9 mph).
June is generally a mild month. The average temperature is of 9.8 °C (50 °F), with a minimum of 4.3 °C (39.7 °F) and a maximum of 15.2 °C (59.4 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -2.5 °C (27.5 °F). However, it dropped to -5.6 °C (21.9 °F) in June 2005.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 23.5 °C (74.5 °F). However, it reached 29.5 °C (85.1 °F) in June 2006.
Precipitation amounts to 60 mm (2.4 in), distributed over 11 days.
The day lasts on average 19 hours and 55 minutes. So the days are very long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
The average humidity is 62%.
The average wind speed is 13 kph (8 mph).
July, the warmest month of the year, is generally a mild month. The average temperature is of 12.8 °C (55 °F), with a minimum of 7.1 °C (44.7 °F) and a maximum of 18.5 °C (65.3 °F).
On the coldest nights of the month, the temperature usually drops to around 0.5 °C (32.5 °F). However, it dropped to -2.7 °C (27.1 °F) in July 2019.
On the warmest days of the month, the temperature usually reaches around 25.5 °C (78.5 °F). However, it reached 30.7 °C (87.3 °F) in July 2008.
Precipitation amounts to 70 mm (2.8 in), distributed over 12 days.
The day lasts on average 18 hours and 50 minutes. So the days are very long.
The average humidity is 64%.
The average wind speed is 11 kph (7 mph).
August is generally a mild month. The average temperature is of 11.4 °C (53 °F), with a minimum of 6.1 °C (43 °F) and a maximum of 16.7 °C (62.1 °F).
On the coldest nights of the month, the temperature usually drops to around -0.5 °C (31 °F). However, it dropped to -2.9 °C (26.8 °F) in August 2017.
On the warmest days of the month, the temperature usually reaches around 23.5 °C (74.5 °F). However, it reached 27.8 °C (82 °F) in August 2003.
Precipitation amounts to 85 mm (3.3 in), distributed over 13 days.
The day lasts on average 16 hours and 0 minutes. So the days are long.
The average humidity is 69%.
The average wind speed is 11 kph (7 mph).
September is generally a quite mild month. The average temperature is of 7.4 °C (45 °F), with a minimum of 2.6 °C (36.6 °F) and a maximum of 12.2 °C (53.9 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -5 °C (23.5 °F). However, it dropped to -8.6 °C (16.5 °F) in September 2007.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 19.5 °C (66.5 °F). However, it reached 25.3 °C (77.5 °F) in September 1991.
Precipitation amounts to 45 mm (1.8 in), distributed over 10 days.
The day lasts on average 12 hours and 55 minutes.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is 12 kph (7 mph).
October is generally a cold month. The average temperature is of 1.4 °C (35 °F), with a minimum of -2.4 °C (27.8 °F) and a maximum of 5.2 °C (41.3 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -14 °C (7 °F). However, it dropped to -22.8 °C (-9 °F) in October 1992.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 12.5 °C (54.5 °F). However, it reached 21.2 °C (70.2 °F) in October 2011.
Precipitation amounts to 40 mm (1.6 in), distributed over 10 days.
The day lasts on average 9 hours and 55 minutes.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is 10 kph (6 mph).
November is generally a very cold month. The average temperature is of -4.4 °C (24 °F), with a minimum of -8.1 °C (17.4 °F) and a maximum of -0.6 °C (30.9 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -21 °C (-5.5 °F). However, it dropped to -32.5 °C (-26.5 °F) in November 1996.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 6.5 °C (43.5 °F). However, it reached 11.8 °C (53.2 °F) in November 2011.
Precipitation amounts to 35 mm (1.4 in), distributed over 9 days.
The day lasts on average 6 hours and 55 minutes. So the days are short.
The average humidity is 88%. Hence, the air is normally humid.
The average wind speed is 9 kph (6 mph).
December is generally a freezing cold month. The average temperature is of -8.6 °C (16 °F), with a minimum of -13.4 °C (7.8 °F) and a maximum of -3.9 °C (25 °F).
On the coldest nights of the month, the temperature usually drops to around -29.5 °C (-21.5 °F). However, it dropped to -38.2 °C (-36.8 °F) in December 2010.
On the warmest days of the month, the temperature usually reaches around 4.5 °C (40.5 °F). However, it reached 7.5 °C (45.5 °F) in December 2013.
Precipitation amounts to 35 mm (1.4 in), distributed over 10 days.
The day lasts on average 5 hours and 5 minutes. So the days are short. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
The average humidity is 88%. Hence, the air is normally humid.
The average wind speed is 8 kph (5 mph).
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