Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Hillsborough features a tropical savanna climate (Aw).Temperatures typically range between 26 °C (78 °F) and 28 °C (82 °F) through the year, but rarely can drop to 23 °C (74 °F) or can rise to as high as 30 °C (85 °F).The average annual precipitation amounts to about 1127 mm (44.4 inches) and receives 212 rainy days on the 1 mm (0.04 inches) threshold annually.Hillsborough enjoys an average of 3911 hours of sunshine throughout the year, and daylight varies from 11 hours 23 minutes to 12 hours 50 minutes per day.
The warmest months in Hillsborough are August, September and October, with daily mean temperatures ranging from 27 to 28 °C (81 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 26 to 26 °C (78 - 79 °F) throughout the day. On average each year, Hillsborough experiences 329 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 27°C (82°F) | 27°C (81°F) | 27°C (81°F) | 28°C (82°F) | 28°C (83°F) | 28°C (83°F) | 29°C (84°F) | 29°C (84°F) | 30°C (85°F) | 29°C (85°F) | 28°C (83°F) | 28°C (83°F) |
Mean maximum | 27°C (81°F) | 27°C (80°F) | 27°C (80°F) | 27°C (82°F) | 28°C (82°F) | 28°C (82°F) | 28°C (83°F) | 29°C (84°F) | 29°C (85°F) | 29°C (84°F) | 28°C (83°F) | 28°C (82°F) |
Average high | 26°C (80°F) | 26°C (79°F) | 26°C (80°F) | 27°C (80°F) | 27°C (81°F) | 28°C (82°F) | 28°C (82°F) | 28°C (83°F) | 28°C (83°F) | 28°C (83°F) | 28°C (82°F) | 27°C (81°F) |
Daily mean | 26°C (79°F) | 26°C (78°F) | 26°C (79°F) | 26°C (80°F) | 27°C (81°F) | 27°C (81°F) | 27°C (81°F) | 27°C (81°F) | 28°C (82°F) | 27°C (82°F) | 27°C (81°F) | 27°C (80°F) |
Average low | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 26°C (78°F) | 26°C (79°F) | 26°C (79°F) | 26°C (79°F) | 26°C (80°F) | 27°C (80°F) | 26°C (80°F) | 26°C (79°F) | 26°C (79°F) |
Mean minimum | 24°C (75°F) | 24°C (75°F) | 24°C (75°F) | 24°C (76°F) | 25°C (77°F) | 25°C (78°F) | 25°C (77°F) | 25°C (78°F) | 26°C (78°F) | 25°C (77°F) | 25°C (77°F) | 24°C (76°F) |
Minimum | 24°C (75°F) | 23°C (74°F) | 24°C (75°F) | 24°C (75°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (78°F) | 25°C (77°F) | 25°C (77°F) | 24°C (76°F) |
Compare temperature, precipitation, sunshine, UV index in Hillsborough, Grenada with other places around the world.
Hillsborough usually has the most precipitation in July, August and October, with an average of 23 rainy days and 165 mm (6.5 inches) of precipitation per month.The driest months in Hillsborough are February, March and April. On average, 35 mm (1.4 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 47 (1.8) | 33 (1.3) | 44 (1.7) | 28 (1.1) | 46 (1.8) | 104 (4.1) | 150 (5.9) | 164 (6.4) | 138 (5.4) | 180 (7.1) | 127 (5.0) | 66 (2.6) |
Average precipitation days (≥ 1 mm) | 13 | 12 | 13 | 9 | 13 | 21 | 24 | 25 | 20 | 22 | 21 | 19 |
The sunniest months in Hillsborough are March, May and July, when the sun shines an average of 11 hours 12 minutes a day.Least sunny months in Hillsborough: January, February and November receive an average of 9 hours 52 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 267 | 305 | 344 | 335 | 352 | 322 | 344 | 343 | 326 | 324 | 315 | 328 |
Mean daily daylight hours | 11h 28m | 11h 43m | 12h 3m | 12h 24m | 12h 41m | 12h 50m | 12h 45m | 12h 30m | 12h 10m | 11h 49m | 11h 32m | 11h 23m |
Hillsborough experiences the highest level of ultraviolet (UV) radiation in April, August and September, when the maximum UV index can reach values of 14 - 14, which corresponds to the Extreme category of sun exposure.January, November and December are in the Very High / Extreme exposure category. In these months, the maximum values of the UV index do not exceed 11. For more detailed information, check out our hourly Hillsborough UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
UV Index (month maximum) | 11 | 12 | 14 | 14 | 14 | 13 | 13 | 14 | 14 | 13 | 11 | 10 |