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Weather & Climate in Letchworth Garden City, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Letchworth Garden City experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 40°F in January while summers reach 62°F in July. The area gets 225 sunny days per year, above the national average. Annual precipitation totals 30.7 inches. The area receives 4.5 inches of snow annually. The city sits at an elevation of 276 feet.
Temperature
40°F Jan (5°C)
62°F Jul (17°C)
| Annual Average | 51.8°F |
| 4% below US avg | |
| January Average | 40°F (5°C) |
| July Average | 62°F (17°C) |
| Sunny Days | 225 days/yr |
Geography
| Elevation | 276 ft (84 m) |
| Area | 7.8 sq mi (20.1 km²) |
| Population Density | 5,602/sq mi |
| Coordinates | 51.9794°N, 0.2266°W |
| Timezone | Europe/London |
Precipitation & Snow
Air Quality
Earthquake History
34 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Sep 22, 2002 | 2 km ESE of Wombourn, United Kingdom | M4.8 | 144 km | 9 km |
| Apr 28, 2007 | 1 km WNW of Lympne, United Kingdom | M4.6 | 131 km | 10 km |
| Feb 15, 1994 | 7 km ESE of Thetford, United Kingdom | M4.4 | 86 km | 10 km |
| Oct 28, 2001 | 5 km E of Long Clawson, United Kingdom | M4.2 | 105 km | 12 km |
| Sep 23, 2000 | 1 km WSW of Warwick, United Kingdom | M4.0 | 100 km | 13 km |
| Sep 15, 1994 | 38 km NE of Broadstairs, United Kingdom | M3.9 | 144 km | 10 km |
| Jan 28, 2015 | 2 km WSW of Market Overton, United Kingdom | M3.8 | 90 km | 3 km |
| May 12, 1994 | 4 km S of Shipston on Stour, United Kingdom | M3.7 | 96 km | 10 km |
| May 22, 2015 | 3 km SSE of Ramsgate, United Kingdom | M3.7 | 137 km | 12 km |
| Feb 8, 1990 | 2 km E of Mansfield, United Kingdom | M3.6 | 143 km | 10 km |
| Apr 18, 2014 | 3 km WSW of Market Overton, United Kingdom | M3.5 | 89 km | 2 km |
| Mar 3, 2009 | 1 km ENE of Hawkinge, United Kingdom | M3.5 | 137 km | 4 km |
| Feb 17, 1992 | 1 km W of Warboys, United Kingdom | M3.4 | 48 km | 10 km |
| Feb 27, 2019 | 3 km SE of Dorking, United Kingdom | M3.3 | 86 km | 10 km |
| Jan 21, 1999 | 4 km ENE of Old Leake, United Kingdom | M3.3 | 121 km | 10 km |
| Sep 9, 1995 | 0 km WNW of East Wittering, United Kingdom | M3.3 | 142 km | 10 km |
| Sep 23, 2002 | 3 km ESE of Wombourn, United Kingdom | M3.2 | 143 km | 9 km |
| Feb 21, 2022 | 5 km N of Hockley, United Kingdom | M3.2 | 132 km | 10 km |
| Nov 5, 1994 | 5 km N of Debenham, United Kingdom | M3.0 | 102 km | 5 km |
| Jan 18, 2013 | 0 km NE of Hathern, United Kingdom | M2.9 | 115 km | 13 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 0.9 m (3 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1911 | FOLKSTONE, ENGLAND | Meteorological | 0.9 m | — | 141 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 40°F (5°C) | 2.5 in | Wettest |
| February | 39°F (4°C) | 1.7 in | Coldest, Driest |
| March | 43°F (6°C) | 2.1 in | |
| April | 46°F (8°C) | 1.9 in | |
| May | 52°F (11°C) | 1.9 in | |
| June | 57°F (14°C) | 2.3 in | |
| July | 62°F (17°C) | 1.7 in | Warmest |
| August | 62°F (17°C) | 2.1 in | |
| September | 57°F (14°C) | 2.3 in | |
| October | 51°F (10°C) | 2.5 in | |
| November | 44°F (7°C) | 2.5 in | |
| December | 41°F (5°C) | 2.4 in |
Letchworth Garden City has a seasonal temperature swing of 23°F / from 39°F in February to 62°F in July. Total annual precipitation is 25.9 inches, with January being the wettest month (2.5") and February the driest (1.7").