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Weather & Climate in Ilminster, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Ilminster experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 42°F in January while summers reach 61°F in July / relatively mild seasonal variation. The area gets 219 sunny days per year. Annual precipitation totals 38.3 inches. The area receives 3.3 inches of snow annually. The city sits at an elevation of 154 feet.
Temperature
42°F Jan (5°C)
61°F Jul (16°C)
| Annual Average | 52.4°F |
| 3% below US avg | |
| January Average | 42°F (5°C) |
| July Average | 61°F (16°C) |
| Sunny Days | 219 days/yr |
Geography
| Elevation | 154 ft (47 m) |
| Area | 1,596.6 sq mi (4,135.2 km²) |
| Population Density | 4/sq mi |
| Coordinates | 50.9268°N, 2.9101°W |
| Timezone | Europe/London |
Precipitation & Snow
Air Quality
Earthquake History
36 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.5.
| Oct 25, 1999 | 10 km N of Hirwaun, United Kingdom | M4.5 | 110 km | 10 km |
| Feb 17, 2018 | 5 km NE of Clydach, United Kingdom | M4.3 | 110 km | 12 km |
| Feb 20, 2014 | 17 km NNW of Ilfracombe, United Kingdom | M4.1 | 100 km | 3 km |
| May 31, 2001 | 20 km NNW of Flexbury, United Kingdom | M4.0 | 125 km | 29 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.7 | 19 km | 7 km |
| Aug 17, 1995 | 28 km S of Salcombe, United Kingdom | M3.6 | 122 km | 10 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.6 | 19 km | 7 km |
| Jan 1, 1994 | Wales-England region, United Kingdom | M3.6 | 54 km | 10 km |
| Oct 10, 2001 | 2 km SSE of Caerphilly, United Kingdom | M3.5 | 73 km | 10 km |
| Feb 12, 2002 | 1 km SSE of Deri, United Kingdom | M3.5 | 89 km | 8 km |
| Jun 20, 2002 | 3 km N of Marshfield, United Kingdom | M3.4 | 72 km | 14 km |
| Feb 24, 2023 | 1 km ENE of Brynmawr, United Kingdom | M3.4 | 99 km | 10 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.3 | 19 km | 7 km |
| Sep 23, 1992 | 1 km NNE of Tiverton, United Kingdom | M3.3 | 40 km | 10 km |
| Jul 30, 1999 | 2 km ENE of Bargoed, United Kingdom | M3.3 | 87 km | 6 km |
| Sep 9, 1995 | 0 km WNW of East Wittering, United Kingdom | M3.3 | 144 km | 10 km |
| Oct 16, 1997 | 4 km ENE of Torquay, United Kingdom | M3.2 | 63 km | 10 km |
| Sep 17, 1993 | 3 km S of Leominster, United Kingdom | M3.2 | 142 km | 10 km |
| Jun 17, 1999 | 7 km NNE of Ross on Wye, United Kingdom | M3.0 | 119 km | 10 km |
| Jan 28, 2002 | 1 km S of Abercarn, United Kingdom | M3.0 | 80 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 0.4 m (1 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2011 | PLYMOUTH, ENGLAND | Avalanche | 0.4 m | - | 48 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (5°C) | 3.8 in | |
| February | 41°F (5°C) | 2.8 in | Coldest |
| March | 44°F (7°C) | 2.8 in | |
| April | 47°F (8°C) | 2.3 in | Driest |
| May | 53°F (11°C) | 2.3 in | |
| June | 58°F (14°C) | 2.4 in | |
| July | 61°F (16°C) | 2.4 in | |
| August | 61°F (16°C) | 2.8 in | Warmest |
| September | 57°F (14°C) | 3.0 in | |
| October | 52°F (11°C) | 3.4 in | |
| November | 46°F (8°C) | 3.7 in | |
| December | 43°F (6°C) | 3.9 in | Wettest |
Ilminster has a seasonal temperature swing of 20°F / from 41°F in February to 61°F in August. Total annual precipitation is 35.6 inches, with December being the wettest month (3.9") and April the driest (2.3").