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Weather & Climate in Islip, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Islip experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 40°F in January while summers reach 61°F in July. The area gets 231 sunny days per year, above the national average. Annual precipitation totals 33.3 inches. The area receives 4.2 inches of snow annually. The city sits at an elevation of 233 feet.
Temperature
40°F Jan (5°C)
61°F Jul (16°C)
| Annual Average | 51.5°F |
| 5% below US avg | |
| January Average | 40°F (5°C) |
| July Average | 61°F (16°C) |
| Sunny Days | 231 days/yr |
Geography
| Elevation | 233 ft (71 m) |
| Area | 2.5 sq mi (6.4 km²) |
| Population Density | 263/sq mi |
| Coordinates | 51.8237°N, 1.2370°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.
| Sep 22, 2002 | 2 km ESE of Wombourn, United Kingdom | M4.8 | 99 km | 9 km |
| Apr 2, 1990 | 4 km NNE of Presteigne, United Kingdom | M4.7 | 131 km | 18 km |
| Oct 28, 2001 | 5 km E of Long Clawson, United Kingdom | M4.2 | 117 km | 12 km |
| Sep 23, 2000 | 1 km WSW of Warwick, United Kingdom | M4.0 | 57 km | 13 km |
| Jan 28, 2015 | 2 km WSW of Market Overton, United Kingdom | M3.8 | 107 km | 3 km |
| Mar 7, 1996 | 3 km SW of Clive, United Kingdom | M3.8 | 150 km | 10 km |
| May 12, 1994 | 4 km S of Shipston on Stour, United Kingdom | M3.7 | 35 km | 10 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.7 | 146 km | 7 km |
| Feb 8, 1990 | 2 km E of Mansfield, United Kingdom | M3.6 | 146 km | 10 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.6 | 146 km | 7 km |
| Oct 10, 2001 | 2 km SSE of Caerphilly, United Kingdom | M3.5 | 139 km | 10 km |
| Apr 18, 2014 | 3 km WSW of Market Overton, United Kingdom | M3.5 | 106 km | 2 km |
| Feb 12, 2002 | 1 km SSE of Deri, United Kingdom | M3.5 | 140 km | 8 km |
| Jun 20, 2002 | 3 km N of Marshfield, United Kingdom | M3.4 | 130 km | 14 km |
| Feb 24, 2023 | 1 km ENE of Brynmawr, United Kingdom | M3.4 | 132 km | 10 km |
| Feb 17, 1992 | 1 km W of Warboys, United Kingdom | M3.4 | 101 km | 10 km |
| Mar 4, 1990 | 2 km N of Great Haywood, United Kingdom | M3.3 | 123 km | 10 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.3 | 146 km | 7 km |
| Jul 30, 1999 | 2 km ENE of Bargoed, United Kingdom | M3.3 | 136 km | 6 km |
| Jun 16, 1991 | 11 km WSW of Knighton, United Kingdom | M3.3 | 145 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 40°F (5°C) | 2.4 in | |
| February | 40°F (4°C) | 1.7 in | Coldest |
| March | 44°F (6°C) | 2.1 in | |
| April | 47°F (8°C) | 1.8 in | |
| May | 53°F (12°C) | 2.1 in | |
| June | 59°F (15°C) | 2.2 in | |
| July | 61°F (16°C) | 1.6 in | Driest |
| August | 63°F (17°C) | 2.2 in | Warmest |
| September | 58°F (14°C) | 2.3 in | |
| October | 51°F (11°C) | 2.3 in | |
| November | 45°F (7°C) | 2.4 in | |
| December | 41°F (5°C) | 2.5 in | Wettest |
Islip has a seasonal temperature swing of 23°F / from 40°F in February to 63°F in August. Total annual precipitation is 25.4 inches, with December being the wettest month (2.5") and July the driest (1.6").