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Weather & Climate in Derwen, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Derwen experiences four distinct seasons with an average annual temperature of 47°F (9°C). Winters average 39°F in January while summers reach 59°F in July. The area gets 185 sunny days per year. Annual precipitation totals 55.5 inches (wetter than the 38-inch national average). The area receives 17.5 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 932 feet.
Temperature
39°F Jan (4°C)
59°F Jul (15°C)
| Annual Average | 47.3°F |
| 12% below US avg | |
| January Average | 39°F (4°C) |
| July Average | 59°F (15°C) |
| Sunny Days | 185 days/yr |
Geography
| Elevation | 932 ft (284 m) |
| Area | 11.6 sq mi (30.1 km²) |
| Population Density | 40/sq mi |
| Coordinates | 53.0333°N, 3.4000°W |
| Timezone | Europe/London |
Precipitation & Snow
Air Quality
Earthquake History
47 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 | 102 km | 9 km |
| Apr 2, 1990 | 4 km NNE of Presteigne, United Kingdom | M4.7 | 85 km | 18 km |
| Oct 25, 1999 | 10 km N of Hirwaun, United Kingdom | M4.5 | 134 km | 10 km |
| Feb 17, 2018 | 5 km NE of Clydach, United Kingdom | M4.3 | 149 km | 12 km |
| Oct 21, 2002 | 1 km ESE of Manchester, United Kingdom | M4.3 | 93 km | 5 km |
| Sep 23, 2000 | 1 km WSW of Warwick, United Kingdom | M4.0 | 147 km | 13 km |
| May 29, 2013 | 14 km WSW of Nefyn, United Kingdom | M3.8 | 90 km | 10 km |
| Mar 7, 1996 | 3 km SW of Clive, United Kingdom | M3.8 | 50 km | 10 km |
| Oct 24, 2002 | 2 km WNW of Droylsden, United Kingdom | M3.8 | 96 km | 4 km |
| Feb 14, 2005 | 2 km SW of Conwy, United Kingdom | M3.8 | 40 km | 5 km |
| Oct 21, 2002 | 0 km N of Longdendale, United Kingdom | M3.7 | 105 km | 5 km |
| Apr 28, 2009 | 3 km WSW of Flookburgh, United Kingdom | M3.7 | 129 km | 9 km |
| May 30, 2022 | 2 km ESE of Prees, United Kingdom | M3.6 | 54 km | 10 km |
| Feb 12, 2002 | 1 km SSE of Deri, United Kingdom | M3.5 | 149 km | 8 km |
| Mar 17, 1994 | 5 km WNW of Newtown, United Kingdom | M3.5 | 55 km | 10 km |
| Jul 29, 1992 | 8 km WNW of Caernarfon, United Kingdom | M3.5 | 68 km | 10 km |
| Oct 22, 2002 | 0 km S of Droylsden, United Kingdom | M3.5 | 97 km | 4 km |
| Feb 29, 2004 | 0 km SW of Diggle, United Kingdom | M3.4 | 110 km | 12 km |
| Feb 24, 2023 | 1 km ENE of Brynmawr, United Kingdom | M3.4 | 138 km | 10 km |
| Sep 1, 1999 | 4 km SSW of Llanfairfechan, United Kingdom | M3.3 | 46 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 39°F (4°C) | 4.1 in | |
| February | 38°F (3°C) | 3.0 in | Coldest |
| March | 41°F (5°C) | 3.5 in | |
| April | 44°F (7°C) | 2.7 in | |
| May | 50°F (10°C) | 2.5 in | Driest |
| June | 55°F (13°C) | 2.8 in | |
| July | 59°F (15°C) | 2.6 in | Warmest |
| August | 58°F (14°C) | 3.3 in | |
| September | 54°F (12°C) | 3.7 in | |
| October | 49°F (9°C) | 4.1 in | |
| November | 43°F (6°C) | 4.6 in | Wettest |
| December | 40°F (4°C) | 4.4 in |
Derwen has a seasonal temperature swing of 21°F / from 38°F in February to 59°F in July. Total annual precipitation is 41.3 inches, with November being the wettest month (4.6") and May the driest (2.5").