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Jiannan, China

Full City Profile

1,969 ft Elevation 600 meters
61°F Avg Temperature 16°C
Jiannan enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 31°F in January while summers reach 78°F in July. The area gets 208 sunny days per year. Annual precipitation totals 71.4 inches. The area receives 56.7 inches of snow annually.

Temperature

31°F Jan (-0°C) 78°F Jul (25°C)
Annual Average61.1°F
13% above US avg
January Average31°F (-0°C)
July Average78°F (25°C)
Sunny Days208 days/yr

Geography

Elevation1,969 ft (600 m)
Area272.0 sq mi (704.5 km²)
Population Density0/sq mi
Coordinates31.3436°N, 104.1959°W
TimezoneAsia/Shanghai

Precipitation & Snow

Annual Rainfall 71.4"
88% above US avg
Snowfall 56.7"
Wettest Month (Jul) 9.00"
Driest Month (Jan) 0.30"

Air Quality

Earthquake History

890 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.9. Most recent: M4.2 on Jun 23, 2025.

May 12, 2008 58 km W of Tianpeng, China M7.9 91 km
May 12, 2008 39 km NW of Tianpeng, China M6.1 57 km
May 13, 2008 58 km NNW of Linqiong, China M5.8 108 km
May 12, 2008 32 km NW of Tianpeng, China M5.8 48 km
May 17, 2008 58 km NNE of Jiangyou, China M5.8 124 km
May 12, 2008 60 km NNW of Deyang, China M5.7 31 km
May 12, 2008 13 km S of Mianyang, China M5.7 46 km
May 12, 2008 47 km N of Tianpeng, China M5.6 30 km
May 16, 2008 69 km NW of Tianpeng, China M5.6 80 km
May 12, 2008 51 km NNW of Deyang, China M5.5 23 km
May 14, 2008 54 km NW of Tianpeng, China M5.4 64 km
May 12, 2008 21 km S of Mianyang, China M5.4 49 km
May 12, 2008 24 km W of Jiangyou, China M5.3 51 km
Mar 12, 2009 68 km W of Guangyuan, China M5.3 144 km
Jun 29, 2009 48 km NW of Deyang, China M5.3 20 km
May 12, 2008 25 km NW of Tianpeng, China M5.3 48 km
May 12, 2008 47 km WNW of Mianyang, China M5.3 33 km
May 12, 2008 51 km NW of Tianpeng, China M5.2 64 km
May 12, 2008 23 km NNE of Jiangyou, China M5.2 89 km
Jun 5, 2008 70 km NNE of Jiangyou, China M5.2 135 km
Source: USGS (M2.5+, 1990–2025)

Tsunami History

1 tsunami recorded within 500 km.

Year Location Cause Max Wave Deaths Distance
1958 SICHUAN PROVINCE Earthquake 78 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 31°F (-0°C) 0.3 in Coldest, Driest
February 45°F (7°C) 0.5 in
March 53°F (11°C) 0.9 in
April 62°F (17°C) 2.0 in
May 70°F (21°C) 3.4 in
June 75°F (24°C) 4.4 in
July 78°F (25°C) 9.0 in Warmest, Wettest
August 77°F (25°C) 8.3 in
September 71°F (21°C) 5.7 in
October 63°F (17°C) 1.8 in
November 54°F (12°C) 0.8 in
December 45°F (7°C) 0.3 in

Jiannan has a seasonal temperature swing of 46°F / from 31°F in January to 78°F in July. Total annual precipitation is 37.4 inches, with July being the wettest month (9.0") and January the driest (0.3").

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