Weather on December 17 in Helsinki
Historical weather data for December 17 in Helsinki, Finland
Based on 55 years of data from HELSINKI RAUTATIENTORI
About This Date
December 17th in Helsinki, Finland typically brings cold winter weather, with average highs around 1°C and lows near -4°C. Over 55 years of records, the warmest December 17th was in 2025 (6°C average), while the coldest was 1978 (-15°C) — a 38°F range across recorded history. Rain or other precipitation has occurred on about 62% of December 17th dates historically, with the wettest December 17th recording 1.04" of rain. The last decade has been 5.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.7°F warmer on this date compared to 20-30 years ago.
Planning for December 17th in Helsinki? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 7°C (44°F) | 6°C (42°F) | 0.08" |
| 2024 | 3°C (37°F) | -2°C (29°F) | 0.04" |
| 2023 | 4°C (40°F) | 1°C (33°F) | 0" |
| 2022 | 1°C (33°F) | -8°C (17°F) | 0" |
| 2021 | 4°C (39°F) | 0°C (32°F) | 0.11" |
| 2020 | 5°C (41°F) | 0°C (32°F) | 0.24" |
| 2019 | 6°C (42°F) | 3°C (38°F) | 0.57" |
| 2018 | 1°C (33°F) | -1°C (31°F) | 0.19" |
| 2017 | 3°C (37°F) | -2°C (29°F) | 0" |
| 2016 | 1°C (34°F) | -4°C (25°F) | 0.13" |
| 2015 | 3°C (38°F) | 1°C (34°F) | 0.97" |
| 2014 | 4°C (40°F) | 1°C (34°F) | -- |
| 2013 | 7°C (45°F) | 3°C (38°F) | -- |
| 2012 | -3°C (26°F) | -7°C (20°F) | -- |
| 2011 | 4°C (40°F) | 2°C (36°F) | -- |
| 2010 | -2°C (29°F) | -6°C (21°F) | -- |
| 2009 | -7°C (19°F) | -12°C (11°F) | -- |
| 2008 | 1°C (33°F) | -3°C (27°F) | 0.32" |
| 2007 | 1°C (33°F) | -3°C (27°F) | 0" |
| 2006 | 3°C (38°F) | -1°C (31°F) | 0" |
| 2005 | -7°C (20°F) | -9°C (15°F) | 0" |
| 2004 | 5°C (41°F) | 3°C (37°F) | 0.61" |
| 2003 | 3°C (38°F) | -11°C (12°F) | 0.23" |
| 2002 | -5°C (23°F) | -9°C (16°F) | 0.03" |
| 2001 | -1°C (30°F) | -3°C (26°F) | 0.01" |
| 2000 | 2°C (36°F) | 1°C (34°F) | 0" |
| 1999 | 4°C (40°F) | -7°C (19°F) | 0.45" |
| 1998 | 4°C (39°F) | -1°C (31°F) | 0.01" |
| 1997 | 2°C (35°F) | 1°C (34°F) | 0.02" |
| 1996 | -2°C (29°F) | -7°C (19°F) | 0.01" |
| 1995 | 3°C (38°F) | -2°C (29°F) | 0" |
| 1994 | -7°C (19°F) | -9°C (16°F) | 0.06" |
| 1993 | 2°C (35°F) | -3°C (27°F) | 0.15" |
| 1992 | 5°C (41°F) | 3°C (37°F) | 0.05" |
| 1991 | 4°C (40°F) | -5°C (23°F) | 0" |
| 1990 | 2°C (35°F) | -2°C (29°F) | 0" |
| 1989 | 0°C (32°F) | -5°C (23°F) | 0.15" |
| 1988 | 2°C (36°F) | 0°C (32°F) | 0.28" |
| 1987 | -2°C (28°F) | -8°C (17°F) | 0" |
| 1986 | -4°C (24°F) | -10°C (14°F) | 0.23" |
| 1985 | -7°C (19°F) | -14°C (6°F) | 0" |
| 1984 | -4°C (24°F) | -8°C (18°F) | 0.05" |
| 1983 | 1°C (34°F) | -3°C (27°F) | 0.01" |
| 1982 | 1°C (33°F) | -2°C (29°F) | 0.01" |
| 1981 | -6°C (22°F) | -19°C (-3°F) | 0.01" |
| 1980 | 0°C (32°F) | -9°C (15°F) | 0" |
| 1979 | 3°C (37°F) | -6°C (22°F) | 0.5" |
| 1978 | -7°C (19°F) | -23°C (-9°F) | 0.08" |
| 1977 | 4°C (40°F) | 1°C (34°F) | 0.01" |
| 1976 | -2°C (28°F) | -14°C (7°F) | 0.1" |
| 1975 | -6°C (22°F) | -13°C (9°F) | 0" |
| 1974 | 3°C (38°F) | -1°C (31°F) | 1" |
| 1973 | -2°C (28°F) | -5°C (23°F) | 1.04" |
| 1972 | 6°C (42°F) | -1°C (31°F) | 0.01" |
| 1971 | 3°C (37°F) | 1°C (33°F) | 0" |