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Weather & Climate in Hillsborough, Grenada
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Hillsborough has a warm climate with an average annual temperature of 81°F (27°C). Winters average 79°F in January while summers reach 82°F in July / relatively mild seasonal variation. The area gets 212 sunny days per year. Annual precipitation totals 68.5 inches (wetter than the 38-inch national average). The city sits at an elevation of 26 feet.
Temperature
79°F Jan (26°C)
82°F Jul (28°C)
| Annual Average | 80.9°F |
| 50% above US avg | |
| January Average | 79°F (26°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 212 days/yr |
Geography
| Elevation | 26 ft (8 m) |
| Area | 42.0 sq mi (108.8 km²) |
| Population Density | 24/sq mi |
| Coordinates | 12.4829°N, 61.4560°W |
| Timezone | America/Grenada |
Precipitation & Snow
Air Quality
Earthquake History
440 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.1.
| Apr 2, 1997 | 33 km NW of Scarborough, Trinidad and Tobago | M6.1 | 132 km | 45 km |
| Nov 5, 2017 | 67 km SE of Saint David’s, Grenada | M5.5 | 95 km | 47 km |
| Jun 1, 1994 | 72 km ESE of Grenville, Grenada | M5.4 | 81 km | 73 km |
| Jan 1, 1996 | 61 km NNW of Petit Valley, Trinidad and Tobago | M5.4 | 142 km | 70 km |
| Feb 4, 2011 | 84 km NNE of Güiria, Venezuela | M5.2 | 149 km | 149 km |
| Apr 7, 2020 | 67 km NW of Scarborough, Trinidad and Tobago | M5.0 | 98 km | 20 km |
| Jul 22, 1998 | 88 km ESE of Hillsborough, Grenada | M5.0 | 88 km | 78 km |
| Dec 22, 1990 | 71 km SW of Saint George's, Grenada | M4.8 | 128 km | 144 km |
| Aug 29, 2017 | 114 km SW of Bridgetown, Barbados | M4.7 | 126 km | 61 km |
| Feb 18, 2001 | 61 km ESE of Byera Village, Saint Vincent and the Grenadines | M4.6 | 120 km | 35 km |
| Apr 22, 1997 | 55 km W of Scarborough, Trinidad and Tobago | M4.6 | 148 km | 5 km |
| Feb 11, 2012 | 98 km SW of Bridgetown, Barbados | M4.6 | 134 km | 5 km |
| Aug 19, 1992 | 62 km N of Scarborough, Trinidad and Tobago | M4.6 | 107 km | 68 km |
| Apr 22, 1997 | 27 km WNW of Scarborough, Trinidad and Tobago | M4.5 | 144 km | 5 km |
| Mar 19, 2024 | 31 km WSW of Saint George's, Grenada | M4.5 | 85 km | 142 km |
| Sep 18, 1990 | 69 km SE of Saint David’s, Grenada | M4.5 | 106 km | 33 km |
| Aug 21, 1996 | 70 km ESE of Hillsborough, Grenada | M4.5 | 71 km | 79 km |
| Feb 12, 2018 | 50 km NE of Scarborough, Trinidad and Tobago | M4.5 | 148 km | 46 km |
| Sep 20, 1994 | 19 km NE of Georgetown, Saint Vincent and the Grenadines | M4.5 | 114 km | 90 km |
| Jul 20, 2000 | 81 km SSW of Saint George's, Grenada | M4.4 | 139 km | 144 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
10 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Beryl | Category 5 | 161 mph | 5 km |
| 2023 | Tammy | Category 1 | 81 mph | 293 km |
| 2021 | Elsa | Category 1 | 86 mph | 109 km |
| 2017 | Maria | Category 4 | 127 mph | 292 km |
| 2010 | Tomas | Category 2 | 98 mph | 103 km |
| 2007 | Dean | Category 3 | 127 mph | 214 km |
| 2005 | Emily | Category 2 | 98 mph | 65 km |
| 2004 | Ivan | Category 4 | 138 mph | 70 km |
| 1995 | Marilyn | Category 1 | 81 mph | 262 km |
| 1980 | Allen | Category 4 | 144 mph | 134 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 1.0 m (3 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1902 | SOUFRIERE VOLCANO | Astronomical | 1.0 m | 1,680 | 99 km |
| 2021 | SOUFRIERE VOLCANO | Astronomical | 0.1 m | — | 99 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
4 volcanoes within 200 km. Closest: Kick 'em Jenny (29 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Kick 'em Jenny | Submarine | -185 m (-607 ft) | 2017 | 29 km |
| St. Catherine | Stratovolcano | 840 m (2,756 ft) | Unknown | 44 km |
| Soufriere St. Vincent | Stratovolcano | 1,220 m (4,003 ft) | 1979 | 99 km |
| Qualibou | Caldera | 777 m (2,549 ft) | 1766 | 156 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 79°F (26°C) | 3.9 in | Coldest |
| February | 79°F (26°C) | 2.2 in | Driest |
| March | 80°F (26°C) | 2.4 in | |
| April | 81°F (27°C) | 2.7 in | |
| May | 82°F (28°C) | 4.1 in | |
| June | 82°F (28°C) | 7.4 in | |
| July | 82°F (28°C) | 7.8 in | |
| August | 82°F (28°C) | 7.2 in | |
| September | 82°F (28°C) | 6.9 in | Warmest |
| October | 82°F (28°C) | 9.0 in | Wettest |
| November | 81°F (27°C) | 8.9 in | |
| December | 80°F (27°C) | 5.9 in |
Hillsborough has a seasonal temperature swing of 4°F / from 79°F in January to 82°F in September. Total annual precipitation is 68.5 inches, with October being the wettest month (9.0") and February the driest (2.2").