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Weather & Climate in Horncastle, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Horncastle experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 38°F in January while summers reach 61°F in July. The area gets 289 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 25.7 inches (drier than the 38-inch national average). The city sits at an elevation of 108 feet.
Temperature
38°F Jan (3°C)
61°F Jul (16°C)
| Annual Average | 48.7°F |
| 10% below US avg | |
| January Average | 38°F (3°C) |
| July Average | 61°F (16°C) |
| Sunny Days | 289 days/yr |
Geography
| Elevation | 108 ft (33 m) |
| Area | 2.2 sq mi (5.7 km²) |
| Population Density | 3,084/sq mi |
| Coordinates | 53.2078°N, 0.1172°W |
| Timezone | Europe/London |
Precipitation & Snow
Air Quality
Earthquake History
46 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Feb 27, 2008 | 1 km NNE of Market Rasen, United Kingdom | M4.8 | 26 km | 18 km |
| Feb 15, 1994 | 7 km ESE of Thetford, United Kingdom | M4.4 | 113 km | 10 km |
| Oct 21, 2002 | 1 km ESE of Manchester, United Kingdom | M4.3 | 143 km | 5 km |
| Oct 28, 2001 | 5 km E of Long Clawson, United Kingdom | M4.2 | 64 km | 12 km |
| Jun 9, 2018 | 7 km NNE of Withernsea, United Kingdom | M4.1 | 66 km | 10 km |
| Dec 21, 2000 | 38 km NNE of Cromer, United Kingdom | M4.0 | 112 km | 10 km |
| Sep 23, 2000 | 1 km WSW of Warwick, United Kingdom | M4.0 | 144 km | 13 km |
| Jan 28, 2015 | 2 km WSW of Market Overton, United Kingdom | M3.8 | 67 km | 3 km |
| Oct 24, 2002 | 2 km WNW of Droylsden, United Kingdom | M3.8 | 140 km | 4 km |
| Oct 21, 2002 | 0 km N of Longdendale, United Kingdom | M3.7 | 129 km | 5 km |
| Jan 3, 2011 | 5 km S of Masham, United Kingdom | M3.6 | 147 km | 6 km |
| Sep 20, 1994 | 55 km NE of Mundesley, United Kingdom | M3.6 | 136 km | 10 km |
| Feb 8, 1990 | 2 km E of Mansfield, United Kingdom | M3.6 | 70 km | 10 km |
| Oct 22, 2002 | 0 km S of Droylsden, United Kingdom | M3.5 | 138 km | 4 km |
| Jun 21, 1998 | 74 km E of Flamborough, United Kingdom | M3.5 | 121 km | 25 km |
| Apr 18, 2014 | 3 km WSW of Market Overton, United Kingdom | M3.5 | 68 km | 2 km |
| Jan 30, 2002 | 25 km NNE of Sheringham, United Kingdom | M3.4 | 94 km | 10 km |
| Feb 29, 2004 | 0 km SW of Diggle, United Kingdom | M3.4 | 131 km | 12 km |
| Feb 17, 1992 | 1 km W of Warboys, United Kingdom | M3.4 | 89 km | 10 km |
| Feb 20, 1995 | England, United Kingdom | M3.3 | 136 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 38°F (3°C) | 2.4 in | Coldest |
| February | 39°F (4°C) | 1.7 in | Driest |
| March | 42°F (6°C) | 2.1 in | |
| April | 46°F (8°C) | 1.9 in | |
| May | 51°F (11°C) | 2.0 in | |
| June | 57°F (14°C) | 2.1 in | |
| July | 61°F (16°C) | 1.9 in | Warmest |
| August | 61°F (16°C) | 2.4 in | |
| September | 56°F (14°C) | 2.2 in | |
| October | 50°F (10°C) | 2.2 in | |
| November | 43°F (6°C) | 2.4 in | |
| December | 40°F (4°C) | 2.5 in | Wettest |
Horncastle has a seasonal temperature swing of 23°F / from 38°F in January to 61°F in July. Total annual precipitation is 25.7 inches, with December being the wettest month (2.5") and February the driest (1.7").