Half Tree Hollow, Saint Helena

Full City Profile

1,034 Population 1,668/sq mi density

1,184 ft Elevation 361 meters

69°F Avg Temperature 20°C

Half Tree Hollow enjoys a temperate climate with an average annual temperature of 69°F (21°C). Winters average 74°F in January while summers reach 66°F in July. The area gets 364 sunny days per year. Annual precipitation totals 7.4 inches. The area receives 0.0 inches of snow annually.

Temperature

74°F Jan (23°C) 66°F Jul (19°C)

Annual Average	68.8°F
	27% above US avg
January Average	74°F (23°C)
July Average	66°F (19°C)
Sunny Days	364 days/yr

Geography

Elevation	1,184 ft (361 m)
Area	0.6 sq mi (1.6 km²)
Population Density	1,668/sq mi
Coordinates	-15.9372°N, 5.7200°W
Timezone	Atlantic/St_Helena

Precipitation & Snow

Annual Rainfall 7.4"

81% below US avg

Snowfall 0.0"

Wettest Month (Apr) 1.50"

Driest Month (Nov) 0.30"

Air Quality

Earthquake History

1 earthquake (M2.5+) within 150 km since 1990. Strongest: M4.5. Most recent: M0.0 on Sep 7, 2010.

Sep 7, 2010	87 km NE of Jamestown, Saint Helena	M4.5	88 km

Source: USGS (M2.5+, 1990–2025)

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	74°F (23°C)	0.4 in	Warmest
February	72°F (22°C)	0.4 in
March	72°F (22°C)	0.9 in
April	71°F (22°C)	1.5 in	Wettest
May	69°F (21°C)	0.7 in
June	67°F (19°C)	0.8 in
July	66°F (19°C)	0.6 in	Coldest
August	66°F (19°C)	0.6 in
September	66°F (19°C)	0.5 in
October	67°F (20°C)	0.4 in
November	68°F (20°C)	0.3 in	Driest
December	70°F (21°C)	0.4 in

Half Tree Hollow has a seasonal temperature swing of 8°F / from 66°F in July to 74°F in January. Total annual precipitation is 7.5 inches, with April being the wettest month (1.5") and November the driest (0.3").

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