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Alao, American Samoa

Full City Profile

508 Population 907/sq mi density
16 ft Elevation 5 meters
81°F Avg Temperature 27°C
Alao has a warm climate with an average annual temperature of 81°F (27°C). Winters average 81°F in January while summers reach 81°F in July. The area gets 331 sunny days per year. Annual precipitation totals 116.7 inches. The area receives 0.0 inches of snow annually.

Temperature

81°F Jan (27°C) 81°F Jul (27°C)
Annual Average81.0°F
50% above US avg
January Average81°F (27°C)
July Average81°F (27°C)
Sunny Days331 days/yr

Geography

Elevation16 ft (5 m)
Area0.6 sq mi (1.5 km²)
Population Density907/sq mi
Coordinates-14.2675°N, 170.5636°W
TimezonePacific/Pago_Pago

Precipitation & Snow

Annual Rainfall 116.7"
207% above US avg
Snowfall 0.0"
Wettest Month (Jan) 16.89"
Driest Month (Aug) 6.81"

Air Quality

Earthquake History

345 earthquakes (M2.5+) within 150 km since 1990. Strongest: M5.2. Most recent: M0.0 on Sep 27, 2024.

Jan 10, 1995 39 km NNE of Ta`?, American Samoa M5.2 140 km
Jan 25, 1995 16 km ESE of Ta`?, American Samoa M5.0 127 km
Sep 17, 2024 93 km S of Matavai, Samoa M4.9 145 km
Oct 3, 1995 26 km ENE of Samamea, Samoa M4.9 91 km
Jul 22, 2016 72 km S of Matavai, Samoa M4.8 121 km
Jan 10, 1995 43 km NNE of Ta`?, American Samoa M4.8 139 km
Jan 13, 1995 48 km NNE of Ta`?, American Samoa M4.8 137 km
Jan 12, 1995 36 km NE of Ta`?, American Samoa M4.8 146 km
Jan 20, 1995 13 km W of Ofu, American Samoa M4.7 83 km
Jan 12, 1995 29 km NE of Ta`?, American Samoa M4.7 138 km
May 9, 2024 8 km SE of Samamea, Samoa M4.7 103 km
Jun 24, 2004 86 km S of Vailoatai, American Samoa M4.6 102 km
Sep 27, 2024 39 km NNE of Lufilufi, Samoa M4.6 120 km
Jan 29, 1995 60 km NNE of Ta`?, American Samoa M4.6 142 km
Jan 10, 1995 44 km N of Ta`?, American Samoa M4.6 130 km
Apr 26, 2024 97 km S of Matavai, Samoa M4.6 142 km
Jan 12, 1995 53 km NNE of Ta`?, American Samoa M4.5 138 km
Sep 5, 2022 21 km NNE of Ta M4.5 122 km
Jan 11, 1995 69 km NNE of Ofu, American Samoa M4.5 141 km
Jan 13, 1995 66 km N of Ofu, American Samoa M4.4 125 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

4 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 5.

Year Name Category Closest
2016 Amos Category 1 231 km
2005 Olaf Category 5 105 km
1992 Val Category 4 5 km
1987 Tusi Category 3 104 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Nearby Volcanoes

5 volcanoes within 200 km. Closest: Tutuila (15 km).

Name Type Elevation Last Eruption Distance
Tutuila Tuff cone(s) 653 m (2,142 ft) 440 15 km
Ofu-Olosega Shield(s) 639 m (2,096 ft) 1866 102 km
Ta'u Shield 931 m (3,054 ft) Unknown 120 km
Upolu Shield 1,100 m (3,609 ft) Unknown 130 km
Vailulu'u Submarine -592 m (-1,942 ft) 2003 162 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 81°F (27°C) 16.9 in Wettest
February 81°F (27°C) 14.3 in
March 81°F (27°C) 13.7 in Warmest
April 80°F (27°C) 10.9 in
May 80°F (26°C) 9.5 in
June 79°F (26°C) 7.0 in
July 81°F (27°C) 7.0 in
August 78°F (26°C) 6.8 in Coldest, Driest
September 79°F (26°C) 7.6 in
October 79°F (26°C) 13.0 in
November 79°F (26°C) 11.2 in
December 80°F (27°C) 15.3 in

Alao has a seasonal temperature swing of 3°F / from 78°F in August to 81°F in March. Total annual precipitation is 133.1 inches, with January being the wettest month (16.9") and August the driest (6.8").

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