North Branch

Population 12,398 (2025)

83 tornadoes have tracked within 25 miles of North Branch since 1950, 6 of them rated EF3 or F3 or stronger; the most recent was on August 29, 2024.

Hazard fingerprint for North Branch Tornado: 63th percentile. Tropical: 0th percentile. Wildfire: 0th percentile. Flood: 15th percentile. Hail & wind: 46th percentile. Heat: 56th percentile. Cold: 73th percentile. Winter: 67th percentile. TORTROPFIREFLOODSEVEREHEATCOLDWINTER

Hazard fingerprint Each spoke is this county’s percentile among U.S. counties where that hazard occurs. How it is computed

2026
  • Tornado damage paths within 25 miles since 195083
  • Wildfire burn scars within 25 miles since 19842

At a glance

Tornado paths within 25 miles, tropical cyclone tracks within 100 miles and wildfire perimeters within 25 miles of the city centre. Storm events, flood insurance claims and disaster declarations are for Chisago County. Earthquakes within 50 miles, volcanoes within 100 miles and smoke days are measured from the city centre; river and tide gauges, tsunami and landslide records and the drought index are for Chisago County.

Tornadoes since 1950, within 25 mi

83

6 rated F3/EF3 or stronger

Details

Flood insurance claims

37

Chisago County

$422,000 paid since 1980

Details

Large wildfires within 25 mi

2

Largest: Unnamed, 2009

Details

Strongest tornado

F4

May 6, 1965, 17.3 mile path

Federal disaster declarations

12

Most recent: Covid-19 Pandemic, 2020

Details

Record high

105°F

July 16, 2006

Details

Record low

−44°F

January 14, 1965

Details

Snowiest season

83.3in

Winter of 2022-23

Tornadoes

About one tornado a year since 1950, 6 of them rated F3/EF3 or stronger.

Strongest

May 6, 1965

F4, 17.3 mile path

667 yards wide; 6 killed along the whole path.

Most recent

Thursday, August 29, 2024

EF1, 9.6 mile path

2 years ago.

Tornadoes by decade, within 25 miles Doppler radar era² 1950s: 6 6 1960s: 11 11 1970s: 2 2 1980s: 5 5 1990s: 17 17 2000s: 19 19 2010s: 16 16 2020s: 7 7 1950s1960s1970s1980s1990s2000s2010s2020s
Recorded tornadoes per decade. The 2020s are incomplete.
Tornadoes by month J: 0 F: 0 M: 0 A: 3 M: 17 J: 16 J: 30 30 A: 12 S: 4 O: 1 N: 0 D: 0 JFMAMJJASOND
By month of occurrence, all years.

Every recorded tornado

Tornadoes within 25 miles since 1950
Aug 29, 2024EF19.625000
Aug 29, 2024EF13.625000
Jun 18, 2024EF15.010000
May 11, 2022EF03.25000
May 9, 2022EF00.75000
Jul 18, 2020EF01.37500
Jul 17, 2020EF13.015000
Sep 21, 2019EF01.28000
Jul 28, 2019EF18.244000
Aug 7, 2018EF00.0100
Jul 12, 2017EF03.025000
Jul 12, 2017EF00.620000
Jul 12, 2017EF110.740000
Jul 12, 2017EF012.644000
Jun 21, 2013EF00.55000
May 27, 2012EF00.22500
Jul 5, 2011EF00.52500
May 22, 2011EF02.67500
May 22, 2011EF00.23000
Jul 27, 2010EF00.820000
Jul 17, 2010EF05.25000
Jun 17, 2010EF00.320000
Jun 17, 2010EF27.840020
Aug 19, 2009EF00.920000
Aug 19, 2009EF00.74000
Aug 19, 2009EF00.01000
May 25, 2008EF01.25000
May 25, 2008EF01.05000
May 25, 2008EF36.0220171
May 26, 2007EF01.02000
Jun 11, 2005F08.02000
Jun 11, 2005F00.12000
May 30, 2004F00.32500
Apr 18, 2004F03.03000
Apr 18, 2004F01.03000
Jul 14, 2003F00.12500
Jun 24, 2003F00.32500
Jun 25, 2002F11.010000
Jun 18, 2001F334.0880162
Jun 18, 2001F18.3000
May 1, 2001F01.55000
Aug 14, 2000F00.22000
Jul 9, 1999F00.55000
Jul 9, 1999F00.2000
Jul 9, 1999F00.1000
Jul 9, 1999F00.5000
Jul 9, 1999F00.5000
Jul 1, 1997F04.010000
Jul 1, 1997F11.020000
Jul 1, 1997F110.040000
Oct 26, 1996F112.088010
Sep 21, 1996F00.15000
Aug 6, 1995F00.11000
Jul 21, 1995F113.022000
Jul 21, 1995F00.11000
Jul 21, 1995F16.030000
Jul 21, 1995F18.020030
May 30, 1994F01.59000
Apr 29, 1991F01.11000
Jun 12, 1989F010.02000
Jul 20, 1987F00.11000
Jul 5, 1986F01.02000
Aug 3, 1981F00.11000
Aug 3, 1981F00.11000
Aug 8, 1973F18.215000
Jul 18, 1970F11.010020
Jul 26, 1969F14.75000
Jul 30, 1968F12.010000
Jun 10, 1968F10.32021
Jun 12, 1967F20.55000
Jul 10, 1966F00.11000
Sep 17, 1965F13.310000
Jul 12, 1965F20.31000
May 6, 1965F417.36671586
May 5, 1965F214.35000
May 18, 1962F12.015000
Aug 2, 1961F00.51000
Sep 6, 1959F13.85000
May 24, 1958F359.450120
May 21, 1957F49.210020
Jun 17, 1954F13.888000
Jun 24, 1952F270.9267150
Jun 23, 1952F318.210062
  1. Injuries and deaths are for the tornado’s whole path, which may extend beyond this area.
  2. Weak tornadoes were under-recorded before Doppler radar coverage became national in the early 1990s, so earlier decades read low. Ratings use the Fujita scale before February 2007 and the Enhanced Fujita scale after.

Storm Prediction Center severe weather database, 1950 to 2025.

Hurricanes and tropical storms

No tropical storm or hurricane has tracked within 100 miles since records began in 1851.

Wildfire and smoke

2 large fires burned within 25 miles since 1984.

Largest

April 6, 2009

Unnamed Fire, 2,899 acres

17.0 miles from the city centre.

Most recent

April 6, 2009

Unnamed Fire

2,899 acres in total.

Acres burned by large fires within 25 miles, cumulative 2000: 1,8492009: 2,899 4,748 acres 198519901995200020052010201520202025
Running total of acres burned (line) and each year’s acres (bars).

Every large fire

Large wildfires since 1984
Unnamed200917.02,899
Unnamed200016.71,849
  1. Large fires mapped by the Monitoring Trends in Burn Severity program since 1984: 1,000 acres or more in the West, 500 or more in the East. Prescribed burns are excluded. Acres here are the part of each perimeter inside this place.

Monitoring Trends in Burn Severity (USGS and U.S. Forest Service), 1984 to 2026.

Smoke overhead

Smokiest year

2023: 79 days

Heavy smoke on 27 days in 2021, the most of any year.

Last 10 years

30.7 days a year

Medium or heavy smoke, 2016 to 2025.

2025

23 days

Medium or heavy smoke. 44 so far in 2026.

Days with medium or heavy smoke overhead, by year 2011: 5 2012: 23 2013: 18 2014: 15 2015: 26 2016: 5 2017: 17 2018: 27 2019: 17 2020: 22 2021: 54 2022: 19 2023: 79 79 2024: 44 2025: 23 201120122013201420152016201720182019202020212022202320242025
Days each year on which a satellite-traced plume of medium or heavy smoke covered the city centre, 2011 to 2025.
  1. A smoke day is a date on which a smoke plume traced by NOAA Hazard Mapping System analysts from satellite imagery covered this place's point (the county's population centre or the city centre). Counts here are of medium or heavy smoke. Since 2018 analysts have often drawn light smoke as one area over most of the continent, so light-smoke counts are not comparable from year to year. The plumes show smoke anywhere in the air above, not air quality at the ground, and smoke hidden by cloud is missed.

NOAA Hazard Mapping System smoke analysis, 2011 to 2026, retrieved October 30, 2026.

Floods and flood insurance

37 federal flood insurance claims since 1980, with $422,000 paid.

Flood insurance figures are for Chisago County, the county that contains North Branch.

Federal flood insurance claims by year 1986: 14 14 1986
Claims per year since 1980. Years with fewer than five claims are not shown.

Most claims in one year

1986: 14 claims

$57,000 paid.

Claims by ZIP code

Flood insurance claims by ZIP code
5504517$59,000
550138$6,275

Flood events since 1996

  • Flash Flood3
  • Flood3
  • Heavy Rain2

This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026. NOAA Storm Events through 2026.

Drought

In severe drought or worse for 153 of 1,581 months since 1895 (10%); the longest spell lasted 21 months.

The drought index is for Chisago County, the county that contains North Branch.

153

Months in severe drought or worse since 1895

56

Months in extreme drought

10%

Share of all months, severe or worse

Lowest reading

August 1934

−7.94, extreme drought

Longest severe spell

21 months

May 1987 to January 1989.

Latest month

September 2026

−2.96, moderate drought

Last severe month: March 2024.

Months in severe drought or worse, by year 1895: 0 1896: 0 1897: 0 1898: 0 1899: 0 1900: 1 1901: 0 1902: 0 1903: 0 1904: 0 1905: 0 1906: 0 1907: 0 1908: 0 1909: 0 1910: 7 1911: 5 1912: 0 1913: 0 1914: 0 1915: 0 1916: 0 1917: 0 1918: 0 1919: 0 1920: 0 1921: 1 1922: 2 1923: 2 1924: 3 1925: 0 1926: 0 1927: 0 1928: 0 1929: 0 1930: 2 1931: 3 1932: 5 1933: 11 1934: 8 1935: 0 1936: 6 1937: 11 1938: 3 1939: 0 1940: 2 1941: 0 1942: 0 1943: 0 1944: 0 1945: 0 1946: 0 1947: 0 1948: 4 1949: 1 1950: 0 1951: 0 1952: 0 1953: 0 1954: 0 1955: 0 1956: 0 1957: 0 1958: 0 1959: 0 1960: 0 1961: 0 1962: 0 1963: 0 1964: 9 1965: 0 1966: 0 1967: 0 1968: 1 1969: 4 1970: 0 1971: 0 1972: 0 1973: 0 1974: 0 1975: 0 1976: 5 1977: 6 1978: 0 1979: 0 1980: 0 1981: 0 1982: 0 1983: 0 1984: 0 1985: 0 1986: 0 1987: 8 1988: 12 12 1989: 1 1990: 2 1991: 0 1992: 0 1993: 0 1994: 0 1995: 0 1996: 0 1997: 0 1998: 0 1999: 0 2000: 0 2001: 0 2002: 0 2003: 0 2004: 0 2005: 0 2006: 0 2007: 0 2008: 0 2009: 2 2010: 0 2011: 0 2012: 7 2013: 3 2014: 0 2015: 0 2016: 0 2017: 0 2018: 0 2019: 0 2020: 0 2021: 4 2022: 5 2023: 4 2024: 3 2025: 0 18951905191519251935194519551965197519851995200520152025
Months each year with a Palmer index of −3 or lower, 1895 to 2025. Twelve means the whole year.
  1. The Palmer Drought Severity Index is computed by NOAA each month from the county's average temperature and precipitation, relative to the county's own climate. Zero is normal; -3 or lower is severe drought and -4 or lower extreme drought. It describes the long-term balance of moisture, not water supply or crop losses.

NOAA NCEI nClimDiv county Palmer Drought Severity Index, 1895 to September 2026, issued October 6, 2026.

Earthquakes and landslides

No earthquake of magnitude 2.5 or more is recorded within 50 miles of the city centre in the USGS catalogue, which begins in 1900.

Mapped landslides

Landslides mapped in Chisago County.

3

Landslides mapped, probable or better

1

With a recorded date

2

Source inventories

Mapped by USGS MN (2), NASA (1).

  1. Landslides mapped in the USGS compilation of landslide inventories across the United States (version 3.0, 2025), rated probable or better. The compilation joins inventories made by federal and state agencies for different purposes and areas, so the number mapped in a county reflects how closely it has been surveyed as much as how often its slopes fail. An area with few records may simply not have been mapped. Deaths are as recorded in the inventories; a slide listed in two inventories is counted once.

USGS Landslide Inventories across the United States, version 3.0, retrieved October 27, 2026.

Severe weather and other events

364 events in the National Weather Service record for Chisago County, 327 of them since 1996.

65

Hail reports, 1 inch or larger

7

Hail, 2 inches or larger

81

Damaging gusts, 58 mph+

96

Winter weather events since 1996

11

Heat events since 1996

23

Cold events since 1996

Largest hail

June 20, 2007

4.25 inches

Strongest measured or estimated gust

June 18, 2001

81 mph

More event types since 1996

Other Storm Events types since 1996
Dense fog and smoke200Nov 19, 2007

Costliest events since 1996

  1. May 1, 2001Hail$2.0 million
  2. Jun 20, 2007Hail$2.0 million
    National Weather Service narrative

    Widespread hail damage to houses, barns, outbuildings, vehicles, and crops. Hail size was estimated. Some hail did not melt until the next morning.

  3. Jun 24, 2003Thunderstorm Wind$500,000
  4. Jul 28, 2019Tornado$500,000
    National Weather Service narrative

    This is the continuation path of the Washington County tornado that moved into Chisago County on 240th Street North, east of Morgan Avenue. This EF1 tornado continued for approximately another 3.8 miles before dissipating north of a farm that was damaged on 268th Street. Along the path in Chisago County, the tornado damaged a farm shed, uprooted numerous trees, damaged an outdoor wedding venue near Highway 25, and destroyed an outbuilding before dissipating. Maximum winds were estimated at 90 mph, with a width of 250 yards in Chisago County.

  5. Jun 18, 2001Hail$400,000
    National Weather Service narrative

    Ninety percent of homes in town received damage. Hundreds of broken windows. Siding, roofs and vehicles damaged by wind driven hail.

  6. Jul 1, 2011Thunderstorm Wind$250,000
    National Weather Service narrative

    Numerous large trees were blown down around Rush City, Minnesota. In addition, residents reported heavy damage to homes in the northwestern part of Chisago County.

  7. Jul 1, 2011Thunderstorm Wind$250,000
    National Weather Service narrative

    Several trees were blown down in Stacy, Minnesota.

  8. Jul 19, 2019Thunderstorm Wind$250,000
    National Weather Service narrative

    The bow echo that moved across Pine County, continued to intensify. It moved from the northern part of Chisago County, southeast into Polk County in Wisconsin. The path of straight line winds was noted as it crossed interstate 35 where very large trees were uprooted or blown down. There was damage to barns, outbuildings and homes along the path. The Chisago County fair grounds was closed due to blown down trees and power lines in Rush City.

  9. Jul 1, 2011Thunderstorm Wind$250,000
    National Weather Service narrative

    Several trees were blown down in Harris, Minnesota.

  10. Sep 19, 2013Thunderstorm Wind$100,000
    National Weather Service narrative

    Scattered large trees were blown down across the northern half of Chisago County, including a tree falling on a house west of Rush City.

  1. Storm Events records before 1996 cover only tornadoes, thunderstorm wind and hail. Damage figures are as reported by the National Weather Service at the time, not adjusted for inflation.

NOAA NCEI Storm Events Database, 1950 to 2026, issued October 26, 2026.

Weather records

From Grantsburg, 22.3 miles from the city centre, with records from 1950.

All-time high
105°FJul 16, 2006
All-time low
−44°FJan 14, 1965
Warmest night
78°F4 times, most recently Jul 18, 2011
Coldest day
−21°FJan 20, 1985
Wettest day
7.83 inOct 5, 2005
Snowiest day
17.0 in2 times, most recently Apr 17, 2014
Hottest year
2024mean 47.2°F
Coldest year
1951mean 38.3°F
Wettest year
196845.08 in
Driest year
197618.77 in
Snowiest season
83.3 in2022-23
Average monthly high and low temperature and precipitation, last 30 years, Grantsburg 32°F 23° 3° 0.8 Jan 28° 6° 1.0 Feb 41° 19° 1.7 Mar 55° 31° 3.0 Apr 69° 44° 3.8 May 78° 54° 4.4 Jun 83° 59° 4.1 Jul 80° 57° 4.2 Aug 73° 49° 3.6 Sep 58° 37° 3.0 Oct 42° 24° 1.7 Nov 27° 11° 1.5 Dec Precipitation, inches
Average daily high and low by month, and average monthly precipitation, over the last 30 years.
Nights at or below freezing per year 1976: 196 196 1977: 171 1979: 177 1980: 184 1981: 173 1989: 187 1990: 183 1991: 183 1992: 187 1993: 191 1994: 177 1995: 189 1996: 192 1997: 183 1998: 150 1999: 175 2000: 175 2001: 166 2002: 194 2003: 178 2004: 169 2005: 172 2006: 169 2007: 161 2008: 178 2009: 172 2010: 163 2011: 153 2012: 166 2013: 191 2014: 174 2015: 161 2016: 155 2018: 192 2019: 184 2020: 196 2021: 164 2022: 178 2023: 158 2024: 148 2025: 152 19761994200420142025
Nights at or below freezing each complete year, last 50 years. Thirty-year average: 171.3.
Snowfall by winter 1977: 35.4 in 1982: 72.4 in 1983: 69.1 in 1984: 44.8 in 1985: 69.7 in 1987: 42.1 in 1988: 52.9 in 1989: 24.4 in 1990: 41.3 in 1991: 75.3 in 1992: 37.2 in 1993: 69.1 in 1994: 31.5 in 1995: 58.7 in 1996: 65.9 in 1997: 40.8 in 1998: 40.3 in 1999: 37.1 in 2000: 67.2 in 2001: 76.7 in 2002: 28.8 in 2003: 73.2 in 2004: 37.7 in 2005: 43.5 in 2006: 42.5 in 2007: 52.1 in 2008: 48.5 in 2009: 34.4 in 2017: 73.7 in 2018: 64.7 in 2019: 47.0 in 2021: 40.1 in 2022: 83.3 in 83.3 2023: 24.0 in 2024: 41.5 in 2025: 35.0 in 1977199220022019
Total snowfall each winter (July to June), last 50 winters.

Median first snow

November 9

Earliest: October 10, 2009

Median last snow

April 9

Latest: May 8, 2010

0 of 57 winters had no measurable snow.

Station Grantsburg (USW00014995), 990 ft elevation, 22.3 miles from the city centre. Daily records from 1950 to March 31, 2026; 96.2% of days in the last 30 years are complete. Records at a single station can differ from a city’s official threaded record, which may combine several stations.

NOAA NCEI Global Historical Climatology Network Daily.

Federal disaster declarations

12 since 1953. The most recent: Covid-19 Pandemic, April 7, 2020.

Declarations for Chisago County.

Federal disaster declarations
Apr 7, 2020BiologicalCovid-19 PandemicMajor disasterDR-4531-MN
Mar 13, 2020BiologicalCovid-19EmergencyEM-3453-MN
Jul 28, 2011Severe StormSevere Storms, Flooding, and TornadoesMajor disasterDR-4009-MN
Sep 13, 2005HurricaneHurricane Katrina EvacuationEmergencyEM-3242-MN
May 16, 2001FloodSevere Winter Storms, Flooding, and TornadoesMajor disasterDR-1370-MN
Oct 20, 2000FireMn - Carlos Edge Fire Complex - 10/19/2000Fire managementFM-2345-MN
Jun 1, 1996FloodFlooding and Severe StormsMajor disasterDR-1116-MN
Jun 17, 1976DroughtDroughtEmergencyEM-3013-MN
Jul 17, 1975Severe StormSevere Storms, Tornadoes & FloodingMajor disasterDR-476-MN
Aug 1, 1972FloodSevere Storms & FloodingMajor disasterDR-347-MN
Apr 18, 1969FloodFloodingMajor disasterDR-255-MN
Apr 11, 1965FloodFloodingMajor disasterDR-188-MN

This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

OpenFEMA Disaster Declarations Summaries, retrieved October 30, 2026. Statewide declarations are not listed.

Sources and vintage

Every number on this page comes from these public records.

  • Tornadoes NOAA Storm Prediction Center severe weather database, through 2025.
  • Tropical cyclones NOAA National Hurricane Center HURDAT2 (Atlantic; Northeast and Central Pacific), through 2025.
  • Wildfire USGS/USFS Monitoring Trends in Burn Severity, through 2026.
  • Storm events NOAA NCEI Storm Events Database, through 2026.
  • Flood insurance OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026.
  • Declarations OpenFEMA Disaster Declarations Summaries v2, retrieved October 30, 2026.
  • Weather records NOAA NCEI Global Historical Climatology Network Daily, station USW00014995.
  • River crests NOAA National Weather Service, National Water Prediction Service river gauges, retrieved October 30, 2026.
  • Drought NOAA NCEI nClimDiv county Palmer Drought Severity Index, through September 2026.
  • Smoke NOAA NESDIS Hazard Mapping System smoke analysis, retrieved October 30, 2026.
  • Landslides USGS Landslide Inventories across the United States, version 3.0 (2025).
  • Earthquakes USGS ANSS Comprehensive Earthquake Catalog (ComCat), retrieved October 30, 2026.

Joins, thresholds and known limits are set out in the methodology. Found an error? Report it. Page built October 30, 2026.