Österforse
# Österforse

Österforse is a locality situated in Sollefteå Municipality, Västernorrland County, Sweden with 204 inhabitants in 2010.

## Climate

Österforse has a borderline continental/subarctic climate that is quite moderate in nature considering its inland position and latitude. Summer days are very warm for North Central Sweden, being heavily affected by its low elevation in comparison to areas further west such as Östersund. Temperatures are heavily dependent on wind direction and the convergences of warm southerly and cold northerly air. As a result, cold snaps can be quite extreme, resulting in an all-time low of −43 °C (−45 °F). The all-time heat record is from July 2, 2015 with 32.8 °C (91.0 °F) in an otherwise chilly summer.

Climate data for Österforse (2002–2018; extremes since 1901) :

| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Record high °C (°F) | 10.1 (50.2) | 12.3 (54.1) | 17.0 (62.6) | 23.0 (73.4) | 28.7 (83.7) | 31.3 (88.3) | 32.8 (91.0) | 30.8 (87.4) | 27.6 (81.7) | 22.4 (72.3) | 12.1 (53.8) | 10.4 (50.7) | 32.8 (91.0) |
| Mean maximum °C (°F) | 4.5 (40.1) | 6.0 (42.8) | 10.5 (50.9) | 17.3 (63.1) | 24.6 (76.3) | 27.0 (80.6) | 29.2 (84.6) | 27.2 (81.0) | 21.6 (70.9) | 14.8 (58.6) | 8.6 (47.5) | 5.8 (42.4) | 30.1 (86.2) |
| Average high °C (°F) | −4.3 (24.3) | −2.4 (27.7) | 3.3 (37.9) | 9.3 (48.7) | 15.7 (60.3) | 19.5 (67.1) | 22.6 (72.7) | 20.3 (68.5) | 15.0 (59.0) | 7.2 (45.0) | 1.1 (34.0) | −2.0 (28.4) | 8.8 (47.8) |
| Daily mean °C (°F) | −8.2 (17.2) | −6.8 (19.8) | −2.1 (28.2) | 3.5 (38.3) | 8.5 (47.3) | 13.0 (55.4) | 16.2 (61.2) | 14.4 (57.9) | 10.0 (50.0) | 3.3 (37.9) | −1.9 (28.6) | −5.7 (21.7) | 3.7 (38.6) |
| Average low °C (°F) | −12.1 (10.2) | −11.2 (11.8) | −7.4 (18.7) | −2.4 (27.7) | 2.2 (36.0) | 6.5 (43.7) | 9.8 (49.6) | 8.5 (47.3) | 4.9 (40.8) | −0.6 (30.9) | −4.8 (23.4) | −9.3 (15.3) | −1.3 (29.6) |
| Mean minimum °C (°F) | −26.3 (−15.3) | −25.4 (−13.7) | −20.8 (−5.4) | −10.0 (14.0) | −4.6 (23.7) | −0.1 (31.8) | 3.4 (38.1) | 1.6 (34.9) | −2.5 (27.5) | −9.8 (14.4) | −15.9 (3.4) | −22.6 (−8.7) | −29.3 (−20.7) |
| Record low °C (°F) | −43.0 (−45.4) | −42.5 (−44.5) | −31.4 (−24.5) | −18.0 (−0.4) | −7.8 (18.0) | −2.5 (27.5) | −0.2 (31.6) | −2.2 (28.0) | −9.8 (14.4) | −19.8 (−3.6) | −30.0 (−22.0) | −40.0 (−40.0) | −43.0 (−45.4) |
| Average precipitation mm (inches) | 42.2 (1.66) | 24.5 (0.96) | 22.7 (0.89) | 29.6 (1.17) | 47.8 (1.88) | 54.6 (2.15) | 73.4 (2.89) | 78.2 (3.08) | 54.9 (2.16) | 53.2 (2.09) | 40.3 (1.59) | 51.2 (2.02) | 572.6 (22.54) |
| Source 1: SMHI Open Data ||||||||||||||
| Source 2: SMHI climate data 2002-2018 ||||||||||||||
