Sign In Register

Bertha, MN

Full City Profile · Minnesota · Otter Tail County County

3.0 /5.0
B Good
489 Population 453/sq mi density
$54,821 Median Income $24,386 per capita
$77,900 Home Value $214,606 Zillow
$750 Median Rent 28.9% income on rent
40°F Avg Temperature 276 sunny days/yr
193 Violent Crime/100K 1,327 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.7 / 5.0
$54,821 median income, 4.4% unemployment
A+
Affordability
5.0 / 5.0
$77,900 home value, $750/mo rent
F
Safety
1.0 / 5.0
193 violent crimes/100K
C
Education
2.1 / 5.0
14.3% bachelor's degree or higher
Bertha has a cool climate with an average annual temperature of 40°F (4°C). Winters average 8°F in January while summers reach 68°F in July. The area gets 276 sunny days per year. Annual precipitation totals 29.3 inches. The area receives 50.8 inches of snow annually. Air quality is rated Good with a median AQI of 36.

Temperature

8°F Jan (-13°C) 68°F Jul (20°C)
Annual Average40.2°F
26% below US avg
January Average8°F (-13°C)
July Average68°F (20°C)
Sunny Days276 days/yr

Geography

Elevation1,394 ft (425 m)
Area1.0 sq mi (2.6 km²)
Population Density453/sq mi
Coordinates46.2671°N, 95.0618°W
TimezoneAmerica/Chicago
CountyOtter Tail County County
Nearest AirportBrainerd Lakes Regional (BRD)
45 miles away

Precipitation & Snow

Annual Rainfall 29.3"
23% below US avg
Snowfall 50.8"
Wettest Month (Jun) 4.29"
Driest Month (Feb) 0.63"

Air Quality

AQI Median36.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score79.4 / 100
Social Vulnerability53.5 / 100
Community Resilience92.6 / 100

Hazard Breakdown

Tornado Relatively Moderate
Earthquake Very Low
Wildfire Relatively Low
Flood Relatively Moderate
Hail Relatively Moderate
Strong Wind Relatively High
Heat Wave Relatively Low
Winter Weather Very High
Lightning Relatively Low
Ice Storm Relatively Low
Drought Relatively Low
Cold Wave Relatively High
Landslide Relatively Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

4 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.1. Most recent: M2.5 on Apr 29, 2011.

Jun 5, 1993 11 km N of Johnson, Minnesota M4.1 116 km
Oct 20, 1995 8 km SSE of New Effington, South Dakota M3.7 149 km
Feb 9, 1994 6 km NNE of Blomkest, Minnesota M3.1 141 km
Apr 29, 2011 Minnesota M2.5 48 km
Source: USGS (M2.5+, 1990–2025)

Tornado History

341 tornadoes (EF0+) within 100 km since 1950. Strongest: EF4. Total: 18 fatalities, 227 injuries.

Date Rating Distance Fatalities
Jul 8, 2020 EF4 70 km 1
Jun 17, 2010 EF4 18 km 0
Jun 17, 2010 EF4 35 km 1
Aug 6, 1969 EF4 86 km 12
Jun 11, 1966 EF4 67 km 0
Jun 6, 2008 EF3 79 km 0
Jun 13, 2001 EF3 23 km 0
Sep 18, 1997 EF3 81 km 1
Jul 5, 1991 EF3 59 km 0
Aug 26, 1977 EF3 44 km 0
Jun 25, 1973 EF3 81 km 0
Aug 6, 1969 EF3 56 km 0
Jun 18, 1964 EF3 78 km 0
May 5, 1964 EF3 79 km 0
Jun 12, 2024 EF2 88 km 0
Jun 12, 2024 EF2 78 km 0
Jun 24, 2022 EF2 82 km 0
May 30, 2022 EF2 88 km 0
May 30, 2022 EF2 65 km 0
May 30, 2022 EF2 84 km 0
Source: NOAA SPC (EF0+, 1950–2024)

Wildfire History

20 wildfires (100+ acres) within 100 km. Largest: UNNAMED (9,055 ac, 2007).

Year Name Acres Distance
2007 UNNAMED 9,055 50 km
2009 CENTER TANK RANGE 6,131 49 km
1988 UNNAMED 4,475 49 km
1988 UNNAMED 3,642 83 km
2009 HENDRICKSON IMPACT AREA 2,757 52 km
2024 DORAN WMA 2,455 91 km
2009 EAST TANK RANGE 1,801 49 km
1987 UNNAMED 1,655 75 km
1988 UNNAMED 1,589 97 km
2012 JEEP FIRE 1,437 38 km
2000 00 14 1,377 90 km
1998 WEST SKUNK 1,129 74 km
2000 UNIT 1 1,073 73 km
1991 UNNAMED 1,062 98 km
1986 UNNAMED 1,025 86 km
1990 UNNAMED 981 95 km
1991 UNNAMED 886 94 km
2002 1000 AC S 880 89 km
1985 UNNAMED 880 50 km
1991 UNNAMED 874 98 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 8°F (-13°C) 0.9 in Coldest
February 14°F (-10°C) 0.6 in Driest
March 27°F (-3°C) 1.6 in
April 42°F (6°C) 2.3 in
May 56°F (13°C) 3.0 in
June 64°F (18°C) 4.3 in Wettest
July 68°F (20°C) 3.6 in Warmest
August 67°F (19°C) 3.2 in
September 57°F (14°C) 2.9 in
October 45°F (7°C) 2.4 in
November 28°F (-3°C) 1.2 in
December 13°F (-11°C) 0.8 in

Bertha has a seasonal temperature swing of 60°F / from 8°F in January to 68°F in July. Total annual precipitation is 26.8 inches, with June being the wettest month (4.3") and February the driest (0.6").

View full weather details →