Union Star, MO

Full City Profile · Missouri

3.8 /5.0
B+ Good
510 Population 1,962/sq mi density
$57,907 Median Income $26,205 per capita
$84,500 Home Value $181,347 Zillow
$925 Median Rent 18.2% income on rent
52°F Avg Temperature
B+
Overall
3.8 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.0 / 5.0
$57,907 median income, 2.4% unemployment
A+
Affordability
5.0 / 5.0
$84,500 home value, $925/mo rent
C
Education
2.4 / 5.0
17.5% bachelor's degree or higher
Union Star experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 26°F in January while summers reach 77°F in July. Annual precipitation totals 40.2 inches. The area receives 17.9 inches of snow annually.

Temperature

26°F Jan (-4°C) 77°F Jul (25°C)
Annual Average52.4°F
3% below US avg
January Average26°F (-4°C)
July Average77°F (25°C)

Geography

Elevation981 ft (299 m)
Area0.3 sq mi (0.7 km²)
Population Density1,962/sq mi
Coordinates39.9798°N, 94.5989°W
TimezoneAmerica/Chicago
Nearest AirportKansas City International (MCI)
48 miles away

Precipitation & Snow

Annual Rainfall 40.2"
6% above US avg
Snowfall 17.9"
Wettest Month (Jun) 5.88"
Driest Month (Jan) 0.95"

Air Quality

Earthquake History

7 earthquakes (M2.5+) within 150 km since 1990. Strongest: M3.6. Most recent: M2.5 on Jul 15, 2025.

Dec 17, 2009 2 km NW of Auburn, Nebraska M3.6 117 km
Jul 16, 2004 6 km SSE of Riverton, Iowa M3.5 109 km
Mar 23, 2007 5 km N of Nortonville, Kansas M3.1 86 km
Feb 11, 1995 6 km E of Clearmont, Missouri M3.1 66 km
May 13, 1999 6 km WSW of Kansas City, Kansas M3.0 98 km
Mar 31, 1993 2 km SE of Nemaha, Nebraska M2.9 97 km
Jul 15, 2025 3 km W of Hale, Missouri M2.5 112 km
Source: USGS (M2.5+, 1990-2025)

Tornado History

518 tornadoes (EF0+) within 100 km since 1950. Strongest: EF4. Total: 13 fatalities, 341 injuries.

Date Rating Distance Fatalities
May 29, 2004 EF4 32 km 3
May 4, 2003 EF4 84 km 0
Jun 7, 1984 EF4 69 km 3
Jun 2, 1980 EF4 92 km 0
Mar 29, 1979 EF4 73 km 0
May 4, 1977 EF4 90 km 0
May 4, 1977 EF4 88 km 0
Apr 23, 1975 EF4 62 km 1
Apr 21, 1973 EF4 97 km 0
Apr 12, 1964 EF4 94 km 1
May 7, 1961 EF4 94 km 0
Apr 5, 1954 EF4 92 km 0
May 2, 2008 EF3 77 km 0
May 29, 2004 EF3 55 km 0
Apr 11, 2001 EF3 49 km 0
May 27, 1995 EF3 83 km 0
Jun 7, 1984 EF3 91 km 0
Apr 26, 1984 EF3 96 km 0
Mar 29, 1979 EF3 90 km 0
Mar 29, 1979 EF3 73 km 0
Source: NOAA SPC (EF0+, 1950-2024)

Wildfire History

7 wildfires (100+ acres) within 100 km. Largest: MOSQR-FY20-RX-WUI (964 ac, 2020).

Year Name Acres Distance
2020 MOSQR-FY20-RX-WUI 964 58 km
2012 HIGHWAY E 897 80 km
2016 SQR BM SL DESOTO 2016 WUI RX 866 58 km
1988 NORTH POOL 698 58 km
2020 UNNAMED 645 57 km
2009 UNIT 6 625 57 km
2002 SCRDGRS 6 536 57 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 26°F (-4°C) 1.0 in Coldest, Driest
February 30°F (-1°C) 1.4 in
March 41°F (5°C) 2.3 in
April 52°F (11°C) 3.8 in
May 63°F (17°C) 5.6 in
June 73°F (23°C) 5.9 in Wettest
July 77°F (25°C) 5.0 in Warmest
August 75°F (24°C) 4.3 in
September 67°F (19°C) 4.3 in
October 54°F (12°C) 3.3 in
November 41°F (5°C) 2.0 in
December 30°F (-1°C) 1.4 in

Union Star has a seasonal temperature swing of 51°F / from 26°F in January to 77°F in July. Total annual precipitation is 40.2 inches, with June being the wettest month (5.9") and January the driest (1.0").

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