Weather on March 21 in London
Historical weather data for March 21 in London, United Kingdom
Based on 56 years of data from HAMPSTEAD
About This Date
March 21st in London, United Kingdom typically brings cool spring weather, with average highs around 12°C and lows near 3°C. Over 56 years of records, the warmest March 21st was in 2002 (13°C average), while the coldest was 2013 (2°C) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 43% of March 21st dates historically, with the wettest March 21st recording 0.84" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for March 21st in London? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2026 | 12°C (53°F) | 0°C (32°F) | 0" |
| 2025 | 16°C (61°F) | 7°C (45°F) | 0" |
| 2024 | 17°C (62°F) | -- | 0.03" |
| 2023 | 15°C (59°F) | 9°C (48°F) | 0.25" |
| 2022 | 17°C (63°F) | 1°C (33°F) | 0" |
| 2021 | 11°C (52°F) | 6°C (43°F) | 0" |
| 2020 | -- | 4°C (39°F) | 0" |
| 2019 | -- | 9°C (48°F) | 0" |
| 2018 | -- | -2°C (29°F) | 0" |
| 2017 | -- | 4°C (39°F) | 0.13" |
| 2016 | 14°C (58°F) | 4°C (40°F) | 0" |
| 2015 | 9°C (48°F) | 4°C (39°F) | 0" |
| 2014 | 11°C (51°F) | 6°C (42°F) | 0.56" |
| 2013 | 4°C (40°F) | -1°C (31°F) | 0.2" |
| 2012 | 16°C (61°F) | 7°C (45°F) | 0" |
| 2011 | 16°C (61°F) | 3°C (38°F) | 0" |
| 2010 | 12°C (53°F) | 5°C (41°F) | 0" |
| 2009 | 15°C (59°F) | 1°C (34°F) | 0" |
| 2008 | 9°C (49°F) | 3°C (38°F) | 0.44" |
| 2007 | 8°C (46°F) | -2°C (29°F) | 0.03" |
| 2006 | 4°C (40°F) | 1°C (34°F) | 0" |
| 2005 | 14°C (58°F) | 6°C (42°F) | 0.16" |
| 2004 | 11°C (51°F) | 6°C (42°F) | 0.06" |
| 2003 | 13°C (55°F) | 4°C (39°F) | 0" |
| 2002 | 16°C (60°F) | 10°C (50°F) | 0" |
| 2001 | 13°C (56°F) | 1°C (34°F) | 0.08" |
| 2000 | 15°C (59°F) | 2°C (36°F) | 0" |
| 1999 | 11°C (51°F) | 6°C (42°F) | 0.15" |
| 1998 | 12°C (53°F) | 8°C (46°F) | 0" |
| 1997 | 13°C (55°F) | 3°C (38°F) | -- |
| 1996 | 11°C (52°F) | 2°C (35°F) | -- |
| 1995 | 11°C (52°F) | 0°C (32°F) | 0" |
| 1994 | 12°C (54°F) | 4°C (39°F) | 0.12" |
| 1993 | 12°C (54°F) | 5°C (41°F) | 0.68" |
| 1992 | 13°C (56°F) | 5°C (41°F) | 0.41" |
| 1991 | 9°C (49°F) | 7°C (44°F) | 0" |
| 1990 | 13°C (56°F) | 9°C (48°F) | 0.04" |
| 1989 | 13°C (55°F) | 1°C (33°F) | 0.17" |
| 1988 | 12°C (54°F) | 7°C (45°F) | 0" |
| 1987 | 9°C (49°F) | -1°C (31°F) | 0" |
| 1986 | 11°C (51°F) | 1°C (34°F) | 0.2" |
| 1985 | 9°C (48°F) | -3°C (27°F) | 0.31" |
| 1984 | 11°C (51°F) | 2°C (36°F) | 0" |
| 1983 | 8°C (47°F) | 2°C (35°F) | 0.37" |
| 1982 | 12°C (54°F) | 4°C (40°F) | 0.09" |
| 1981 | 8°C (47°F) | 7°C (45°F) | 0.4" |
| 1980 | 8°C (46°F) | -2°C (29°F) | 0" |
| 1979 | 8°C (46°F) | 2°C (36°F) | 0.4" |
| 1978 | 9°C (49°F) | 1°C (34°F) | 0" |
| 1977 | 6°C (42°F) | 3°C (38°F) | 0.84" |
| 1976 | 4°C (40°F) | 1°C (34°F) | 0" |
| 1975 | 8°C (46°F) | 3°C (38°F) | 0.83" |
| 1974 | 11°C (52°F) | 3°C (38°F) | 0" |
| 1973 | 16°C (61°F) | 2°C (35°F) | 0" |
| 1972 | 18°C (64°F) | 5°C (41°F) | 0" |
| 1971 | 8°C (47°F) | 4°C (39°F) | 0" |