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Weather & Climate in Theydon Bois, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Theydon Bois experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 41°F in January while summers reach 64°F in July. The area gets 234 sunny days per year, above the national average. Annual precipitation totals 31.7 inches. The area receives 3.0 inches of snow annually. The city sits at an elevation of 197 feet.
Temperature
41°F Jan (5°C)
64°F Jul (18°C)
| Annual Average | 53.1°F |
| 2% below US avg | |
| January Average | 41°F (5°C) |
| July Average | 64°F (18°C) |
| Sunny Days | 234 days/yr |
Geography
| Elevation | 197 ft (60 m) |
| Area | 3.0 sq mi (7.7 km²) |
| Population Density | 1,285/sq mi |
| Coordinates | 51.6743°N, 0.0978°W |
| Timezone | Europe/London |
Precipitation & Snow
Air Quality
Earthquake History
34 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.
| Apr 28, 2007 | 1 km WNW of Lympne, United Kingdom | M4.6 | 91 km | 10 km |
| Feb 15, 1994 | 7 km ESE of Thetford, United Kingdom | M4.4 | 94 km | 10 km |
| Oct 28, 2001 | 5 km E of Long Clawson, United Kingdom | M4.2 | 146 km | 12 km |
| Jan 23, 2007 | 57 km ENE of Broadstairs, United Kingdom | M4.1 | 141 km | 10 km |
| Sep 23, 2000 | 1 km WSW of Warwick, United Kingdom | M4.0 | 135 km | 13 km |
| Sep 15, 1994 | 38 km NE of Broadstairs, United Kingdom | M3.9 | 117 km | 10 km |
| Jan 28, 2015 | 2 km WSW of Market Overton, United Kingdom | M3.8 | 130 km | 3 km |
| May 12, 1994 | 4 km S of Shipston on Stour, United Kingdom | M3.7 | 125 km | 10 km |
| May 22, 2015 | 3 km SSE of Ramsgate, United Kingdom | M3.7 | 102 km | 12 km |
| Apr 18, 2014 | 3 km WSW of Market Overton, United Kingdom | M3.5 | 130 km | 2 km |
| Mar 3, 2009 | 1 km ENE of Hawkinge, United Kingdom | M3.5 | 97 km | 4 km |
| Feb 17, 1992 | 1 km W of Warboys, United Kingdom | M3.4 | 82 km | 10 km |
| Sep 9, 1995 | 0 km WNW of East Wittering, United Kingdom | M3.3 | 121 km | 10 km |
| Feb 27, 2019 | 3 km SE of Dorking, United Kingdom | M3.3 | 58 km | 10 km |
| May 4, 1990 | 0 km NE of Coquelles, France | M3.1 | 144 km | 10 km |
| Nov 25, 1998 | 26 km N of Grand-Fort-Philippe, France | M3.0 | 146 km | 10 km |
| Nov 5, 1994 | 5 km N of Debenham, United Kingdom | M3.0 | 100 km | 5 km |
| Jul 16, 2005 | 3 km WSW of Southwater, United Kingdom | M2.9 | 82 km | 5 km |
| Jan 27, 2015 | 1 km ENE of Winchester, United Kingdom | M2.9 | 118 km | 3 km |
| Mar 18, 2001 | 8 km W of Marlborough, United Kingdom | M2.9 | 137 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 6.0 m (20 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1858 | NORTH SEA | Unknown | 6.0 m | — | 127 km |
| 1911 | FOLKSTONE, ENGLAND | Meteorological | 0.9 m | — | 102 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 2.4 in | Wettest |
| February | 39°F (4°C) | 1.6 in | Coldest, Driest |
| March | 43°F (6°C) | 1.9 in | |
| April | 46°F (8°C) | 1.7 in | |
| May | 53°F (11°C) | 1.8 in | |
| June | 58°F (14°C) | 2.0 in | |
| July | 64°F (18°C) | 1.7 in | Warmest |
| August | 62°F (17°C) | 1.9 in | |
| September | 57°F (14°C) | 2.2 in | |
| October | 51°F (11°C) | 2.4 in | |
| November | 44°F (7°C) | 2.4 in | |
| December | 41°F (5°C) | 2.3 in |
Theydon Bois has a seasonal temperature swing of 24°F / from 39°F in February to 64°F in July. Total annual precipitation is 24.2 inches, with January being the wettest month (2.4") and February the driest (1.6").