Weather on March 21 in Helsinki
Historical weather data for March 21 in Helsinki, Finland
Based on 56 years of data from HELSINKI RAUTATIENTORI
About This Date
March 21st in Helsinki, Finland typically brings cold spring weather, with average highs around 3°C and lows near -4°C. Over 56 years of records, the warmest March 21st was in 1989 (6°C average), while the coldest was 1980 (-11°C) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 41% of March 21st dates historically, with the wettest March 21st recording 1.47" of rain. The last decade has been 5.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.3°F warmer on this date compared to 20-30 years ago.
Planning for March 21st 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 |
|---|---|---|---|
| 2026 | 7°C (44°F) | 0°C (32°F) | -- |
| 2025 | 7°C (44°F) | 1°C (33°F) | 0" |
| 2024 | 2°C (36°F) | 1°C (33°F) | 0.01" |
| 2023 | 6°C (42°F) | -1°C (31°F) | 0.01" |
| 2022 | 12°C (54°F) | -1°C (31°F) | 0" |
| 2021 | 3°C (38°F) | 1°C (33°F) | 0" |
| 2020 | 3°C (37°F) | -6°C (22°F) | 0.1" |
| 2019 | 6°C (42°F) | 1°C (34°F) | 0.01" |
| 2018 | 0°C (32°F) | -12°C (11°F) | 0" |
| 2017 | 3°C (38°F) | -1°C (31°F) | 0.43" |
| 2016 | 1°C (34°F) | -2°C (28°F) | 0" |
| 2015 | 3°C (38°F) | -2°C (28°F) | -- |
| 2014 | 9°C (49°F) | -1°C (30°F) | -- |
| 2013 | -2°C (28°F) | -10°C (14°F) | -- |
| 2012 | 7°C (44°F) | 1°C (33°F) | -- |
| 2011 | 2°C (35°F) | -4°C (25°F) | -- |
| 2010 | 2°C (35°F) | 0°C (32°F) | -- |
| 2009 | 5°C (41°F) | 1°C (33°F) | 0" |
| 2008 | -1°C (30°F) | -7°C (19°F) | 0" |
| 2007 | 7°C (44°F) | 0°C (32°F) | 0.23" |
| 2006 | -1°C (31°F) | -11°C (12°F) | 0" |
| 2005 | 3°C (37°F) | -10°C (14°F) | 0" |
| 2004 | 2°C (36°F) | 1°C (33°F) | 1.34" |
| 2003 | -2°C (28°F) | -9°C (15°F) | 0" |
| 2002 | 2°C (36°F) | 1°C (33°F) | 0" |
| 2001 | -1°C (31°F) | -11°C (12°F) | 0" |
| 2000 | 8°C (46°F) | 1°C (33°F) | 0.01" |
| 1999 | 3°C (37°F) | 0°C (32°F) | 0" |
| 1998 | 3°C (37°F) | -3°C (26°F) | 0" |
| 1997 | -1°C (31°F) | -10°C (14°F) | 0" |
| 1996 | 2°C (36°F) | -12°C (11°F) | 0" |
| 1995 | 2°C (36°F) | -2°C (29°F) | 0.01" |
| 1994 | 2°C (36°F) | -7°C (19°F) | 0" |
| 1993 | 4°C (39°F) | -1°C (30°F) | 0.07" |
| 1992 | 3°C (38°F) | 2°C (36°F) | 0.28" |
| 1991 | 3°C (38°F) | 1°C (33°F) | 0.06" |
| 1990 | 6°C (43°F) | 1°C (34°F) | 0.72" |
| 1989 | 8°C (46°F) | 3°C (38°F) | 0.64" |
| 1988 | 2°C (36°F) | -6°C (22°F) | 0" |
| 1987 | 1°C (33°F) | -4°C (24°F) | 0.24" |
| 1986 | 4°C (40°F) | -2°C (29°F) | 0" |
| 1985 | 2°C (35°F) | -1°C (31°F) | 0" |
| 1984 | -1°C (30°F) | -14°C (7°F) | 0" |
| 1983 | 2°C (35°F) | -3°C (27°F) | 0" |
| 1982 | 3°C (37°F) | -2°C (29°F) | 0" |
| 1981 | 0°C (32°F) | -4°C (24°F) | 0.3" |
| 1980 | -7°C (20°F) | -15°C (5°F) | 0" |
| 1979 | -1°C (30°F) | -4°C (25°F) | 0.77" |
| 1978 | -7°C (19°F) | -14°C (6°F) | 0.07" |
| 1977 | 3°C (38°F) | -1°C (31°F) | 0.01" |
| 1976 | -1°C (30°F) | -13°C (9°F) | 0" |
| 1975 | 7°C (44°F) | -5°C (23°F) | 0" |
| 1974 | 2°C (36°F) | 1°C (33°F) | 1.47" |
| 1973 | 1°C (34°F) | -4°C (24°F) | 0.35" |
| 1972 | 3°C (38°F) | -3°C (26°F) | 0.01" |
| 1971 | 2°C (36°F) | 1°C (33°F) | 0.25" |