Johnston, Australia

Full City Profile

2,386 Population 117/sq mi density
138 ft Elevation 42 meters
81°F Avg Temperature 27°C
Johnston has a warm climate with an average annual temperature of 81°F (27°C). Winters average 82°F in January while summers reach 78°F in July. Annual precipitation totals 71.9 inches. The area receives 0.0 inches of snow annually.

Temperature

82°F Jan (28°C) 78°F Jul (25°C)
Annual Average81.3°F
51% above US avg
January Average82°F (28°C)
July Average78°F (25°C)

Geography

Elevation138 ft (42 m)
Area20.4 sq mi (52.9 km²)
Population Density117/sq mi
Coordinates12.4876°S, 131.0117°E
TimezoneAustralia/Darwin

Precipitation & Snow

Annual Rainfall 71.9"
89% above US avg
Snowfall 0.0"
Wettest Month (Jan) 16.93"
Driest Month (Jul) 0.04"

Air Quality

Earthquake History

1 earthquake (M2.5+) within 150 km since 1990. Strongest: M3.9. Most recent: M3.9 on Nov 12, 1999.

Nov 12, 1999 36 km S of Bellamack, Australia M3.9 40 km
Source: USGS (M2.5+, 1990-2025)

Hurricane History

7 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 4. Most recent: Fina (2026).

Year Name Category Closest
2026 Fina Category 3 59 km
2018 Marcus Category 1 296 km
2006 Monica Category 4 249 km
2005 Ingrid Category 4 134 km
2004 Debbie Category 1 292 km
1999 Thelma Category 4 195 km
1992 Neville Category 4 161 km
Source: NOAA IBTrACS (Cat 1+, 1980-2026)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 82°F (28°C) 16.9 in Wettest
February 82°F (28°C) 13.5 in
March 82°F (28°C) 12.5 in
April 82°F (28°C) 3.5 in
May 80°F (27°C) 0.8 in
June 76°F (25°C) 0.1 in Coldest
July 78°F (25°C) 0.0 in Driest
August 78°F (25°C) 0.2 in
September 82°F (28°C) 0.6 in
October 84°F (29°C) 2.8 in
November 85°F (29°C) 5.3 in Warmest
December 84°F (29°C) 10.3 in

Johnston has a seasonal temperature swing of 9°F / from 76°F in June to 85°F in November. Total annual precipitation is 66.5 inches, with January being the wettest month (16.9") and July the driest (0.0").

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