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Weather & Climate in Chwilog, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Chwilog experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 41°F in January while summers reach 59°F in July / relatively mild seasonal variation. The area gets 257 sunny days per year, above the national average. Annual precipitation totals 43.5 inches. The city sits at an elevation of 112 feet.
Temperature
41°F Jan (5°C)
59°F Jul (15°C)
| Annual Average | 49.5°F |
| 8% below US avg | |
| January Average | 41°F (5°C) |
| July Average | 59°F (15°C) |
| Sunny Days | 257 days/yr |
Geography
| Elevation | 112 ft (34 m) |
| Area | 2.1 sq mi (5.5 km²) |
| Population Density | 303/sq mi |
| Coordinates | 52.9199°N, 4.3319°W |
| Timezone | Europe/London |
Precipitation & Snow
Air Quality
Earthquake History
20 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.7.
| Apr 2, 1990 | 4 km NNE of Presteigne, United Kingdom | M4.7 | 113 km | 18 km |
| Oct 25, 1999 | 10 km N of Hirwaun, United Kingdom | M4.5 | 132 km | 10 km |
| Feb 17, 2018 | 5 km NE of Clydach, United Kingdom | M4.3 | 137 km | 12 km |
| May 29, 2013 | 14 km WSW of Nefyn, United Kingdom | M3.8 | 26 km | 10 km |
| Mar 7, 1996 | 3 km SW of Clive, United Kingdom | M3.8 | 106 km | 10 km |
| Feb 14, 2005 | 2 km SW of Conwy, United Kingdom | M3.8 | 50 km | 5 km |
| May 30, 2022 | 2 km ESE of Prees, United Kingdom | M3.6 | 114 km | 10 km |
| Jul 29, 1992 | 8 km WNW of Caernarfon, United Kingdom | M3.5 | 27 km | 10 km |
| Mar 17, 1994 | 5 km WNW of Newtown, United Kingdom | M3.5 | 78 km | 10 km |
| Feb 24, 2023 | 1 km ENE of Brynmawr, United Kingdom | M3.4 | 147 km | 10 km |
| Feb 20, 1995 | England, United Kingdom | M3.3 | 149 km | 5 km |
| Jun 16, 1991 | 11 km WSW of Knighton, United Kingdom | M3.3 | 102 km | 10 km |
| Sep 1, 1999 | 4 km SSW of Llanfairfechan, United Kingdom | M3.3 | 40 km | 10 km |
| Feb 10, 1994 | 2 km NNE of Tregarth, United Kingdom | M3.3 | 37 km | 10 km |
| Aug 25, 2013 | 23 km W of Cleveleys, United Kingdom | M3.2 | 124 km | 8 km |
| Sep 17, 1993 | 3 km S of Leominster, United Kingdom | M3.2 | 134 km | 10 km |
| May 26, 2015 | 6 km WSW of Caernarfon, United Kingdom | M3.0 | 22 km | 9 km |
| May 6, 1996 | 2 km NNW of Basford, Stoke-on-Trent, United Kingdom | M2.8 | 141 km | 5 km |
| Jun 26, 2013 | 14 km WSW of Nefyn, United Kingdom | M2.8 | 26 km | 8 km |
| Oct 16, 1998 | 1 km WSW of Y Felinheli, United Kingdom | M2.7 | 30 km | 12 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 4.3 in | Coldest |
| February | 41°F (5°C) | 3.2 in | |
| March | 43°F (6°C) | 3.7 in | |
| April | 46°F (8°C) | 2.6 in | |
| May | 52°F (11°C) | 2.4 in | Driest |
| June | 56°F (13°C) | 2.8 in | |
| July | 59°F (15°C) | 2.8 in | Warmest |
| August | 59°F (15°C) | 3.5 in | |
| September | 56°F (13°C) | 3.8 in | |
| October | 52°F (11°C) | 4.7 in | |
| November | 46°F (8°C) | 5.1 in | Wettest |
| December | 43°F (6°C) | 4.7 in |
Chwilog has a seasonal temperature swing of 19°F / from 41°F in January to 59°F in July. Total annual precipitation is 43.6 inches, with November being the wettest month (5.1") and May the driest (2.4").