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Weather & Climate in Jameston, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Jameston experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 43°F in January while summers reach 61°F in July / relatively mild seasonal variation. The area gets 267 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 38.0 inches. The city sits at an elevation of 194 feet.
Temperature
43°F Jan (6°C)
61°F Jul (16°C)
| Annual Average | 51.1°F |
| 5% below US avg | |
| January Average | 43°F (6°C) |
| July Average | 61°F (16°C) |
| Sunny Days | 267 days/yr |
Geography
| Elevation | 194 ft (59 m) |
| Area | 4.4 sq mi (11.3 km²) |
| Population Density | 146/sq mi |
| Coordinates | 51.6564°N, 4.8130°W |
| Timezone | Europe/London |
Precipitation & Snow
Air Quality
Earthquake History
27 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 | 145 km | 18 km |
| Oct 25, 1999 | 10 km N of Hirwaun, United Kingdom | M4.5 | 90 km | 10 km |
| Feb 17, 2018 | 5 km NE of Clydach, United Kingdom | M4.3 | 66 km | 12 km |
| Feb 20, 2014 | 17 km NNW of Ilfracombe, United Kingdom | M4.1 | 56 km | 3 km |
| May 31, 2001 | 20 km NNW of Flexbury, United Kingdom | M4.0 | 74 km | 29 km |
| May 29, 2013 | 14 km WSW of Nefyn, United Kingdom | M3.8 | 137 km | 10 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.7 | 142 km | 7 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.6 | 142 km | 7 km |
| Jan 1, 1994 | Wales-England region, United Kingdom | M3.6 | 105 km | 10 km |
| Mar 17, 1994 | 5 km WNW of Newtown, United Kingdom | M3.5 | 139 km | 10 km |
| Oct 10, 2001 | 2 km SSE of Caerphilly, United Kingdom | M3.5 | 112 km | 10 km |
| Feb 12, 2002 | 1 km SSE of Deri, United Kingdom | M3.5 | 108 km | 8 km |
| Feb 24, 2023 | 1 km ENE of Brynmawr, United Kingdom | M3.4 | 115 km | 10 km |
| Jun 20, 2002 | 3 km N of Marshfield, United Kingdom | M3.4 | 120 km | 14 km |
| Jun 16, 1991 | 11 km WSW of Knighton, United Kingdom | M3.3 | 132 km | 10 km |
| Sep 23, 1992 | 1 km NNE of Tiverton, United Kingdom | M3.3 | 124 km | 10 km |
| Jul 30, 1999 | 2 km ENE of Bargoed, United Kingdom | M3.3 | 111 km | 6 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.3 | 142 km | 7 km |
| Jan 28, 2002 | 1 km S of Abercarn, United Kingdom | M3.0 | 116 km | 10 km |
| Feb 11, 1998 | 4 km SE of Newport, United Kingdom | M2.9 | 129 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 3.9 in | |
| February | 43°F (6°C) | 2.8 in | Coldest |
| March | 45°F (7°C) | 3.0 in | |
| April | 47°F (9°C) | 2.2 in | |
| May | 52°F (11°C) | 2.1 in | Driest |
| June | 57°F (14°C) | 2.5 in | |
| July | 61°F (16°C) | 2.3 in | |
| August | 61°F (16°C) | 3.2 in | Warmest |
| September | 58°F (14°C) | 3.2 in | |
| October | 53°F (12°C) | 4.1 in | |
| November | 48°F (9°C) | 4.5 in | Wettest |
| December | 45°F (7°C) | 4.1 in |
Jameston has a seasonal temperature swing of 18°F / from 43°F in February to 61°F in August. Total annual precipitation is 38.0 inches, with November being the wettest month (4.5") and May the driest (2.1").