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Weather & Climate in Great Dunmow, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Great Dunmow 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 232 sunny days per year, above the national average. Annual precipitation totals 32.4 inches. The area receives 2.8 inches of snow annually. The city sits at an elevation of 243 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 | 232 days/yr |
Geography
| Elevation | 243 ft (74 m) |
| Area | 281.5 sq mi (729.1 km²) |
| Population Density | 28/sq mi |
| Coordinates | 51.8723°N, 0.3626°W |
| Timezone | Europe/London |
Precipitation & Snow
Air Quality
Earthquake History
35 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 | 98 km | 10 km |
| Feb 15, 1994 | 7 km ESE of Thetford, United Kingdom | M4.4 | 65 km | 10 km |
| Oct 28, 2001 | 5 km E of Long Clawson, United Kingdom | M4.2 | 136 km | 12 km |
| Jan 23, 2007 | 57 km ENE of Broadstairs, United Kingdom | M4.1 | 125 km | 10 km |
| Sep 23, 2000 | 1 km WSW of Warwick, United Kingdom | M4.0 | 142 km | 13 km |
| Sep 15, 1994 | 38 km NE of Broadstairs, United Kingdom | M3.9 | 102 km | 10 km |
| Jan 28, 2015 | 2 km WSW of Market Overton, United Kingdom | M3.8 | 120 km | 3 km |
| May 22, 2015 | 3 km SSE of Ramsgate, United Kingdom | M3.7 | 98 km | 12 km |
| May 12, 1994 | 4 km S of Shipston on Stour, United Kingdom | M3.7 | 138 km | 10 km |
| Apr 18, 2014 | 3 km WSW of Market Overton, United Kingdom | M3.5 | 120 km | 2 km |
| Mar 3, 2009 | 1 km ENE of Hawkinge, United Kingdom | M3.5 | 101 km | 4 km |
| Feb 17, 1992 | 1 km W of Warboys, United Kingdom | M3.4 | 67 km | 10 km |
| Sep 9, 1995 | 0 km WNW of East Wittering, United Kingdom | M3.3 | 150 km | 10 km |
| Feb 27, 2019 | 3 km SE of Dorking, United Kingdom | M3.3 | 87 km | 10 km |
| Jan 21, 1999 | 4 km ENE of Old Leake, United Kingdom | M3.3 | 131 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 | 139 km | 10 km |
| Nov 5, 1994 | 5 km N of Debenham, United Kingdom | M3.0 | 72 km | 5 km |
| Mar 28, 1996 | 67 km ESE of Aldeburgh, United Kingdom | M3.0 | 146 km | 10 km |
| Jan 1, 1995 | 2 km ESE of Halesworth, United Kingdom | M2.9 | 96 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 | — | 105 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 40°F (5°C) | 2.2 in | |
| February | 39°F (4°C) | 1.5 in | Coldest, Driest |
| March | 43°F (6°C) | 1.8 in | |
| April | 46°F (8°C) | 1.7 in | |
| May | 52°F (11°C) | 1.7 in | |
| June | 57°F (14°C) | 2.1 in | |
| July | 62°F (17°C) | 1.7 in | Warmest |
| August | 62°F (17°C) | 2.0 in | |
| September | 57°F (14°C) | 2.2 in | |
| October | 51°F (10°C) | 2.2 in | |
| November | 44°F (6°C) | 2.3 in | Wettest |
| December | 40°F (5°C) | 2.2 in |
Great Dunmow has a seasonal temperature swing of 24°F / from 39°F in February to 62°F in July. Total annual precipitation is 23.5 inches, with November being the wettest month (2.3") and February the driest (1.5").