Summer Begins With Freezing Temperatures in Parts of the US

By Sam Stebbins  •  June 16, 2026
brown wooden walkway near beach during daytime
Photo by Khachik Simonian on Unsplash

The meteorological summer begins with the month of June in the United States, and two weeks into the season, the summer of 2026 has already brought blistering heat to much of the country. According to local data compiled by the National Oceanic and Atmospheric Administration, more than 380 daily heat records have been either matched or broken so far this month.

Weather stations across parts of Arizona, California, Colorado, Kansas, Nevada, North Carolina, Texas, and Wyoming have reported temperatures exceeding 100°F in the first half of June. On Sunday, June 7th in Homestead, Florida, mercury hit 109°F, the highest temperature ever recorded in the weather station’s 36 year history, and 9°F higher than the previous local record. 

The record-breaking heat has not been the only story in June 2026, however. In the last two weeks, parts of the Western United States have reported unusually cold weather. In many cases, temperatures have fallen below freezing – hitting lows never before seen in the month of June. 

Using data from NOAA’s Daily Weather Records program, Climate Crisis 247 identified the places where freezing temperatures have broken historic June records. We ranked all weather stations on the lowest June temperatures ever recorded, and identified those where new records were set between June 1 and June 12, 2026. Only places where record breaking temperatures were 32°F or less were considered. All supplemental data is also from NOAA. 

Among the places on this list, new monthly temperature lows range from 30°F down to just 17°F, and are anywhere from 27°F to 35°F lower than the local June average. 

12. Sonora, California (Tuolumne County)

  • Coldest June temperature on record: 30°F, on June 1, 2026
  • Previous record low in June: 34°F, on June 12, 1952
  • Average June temperature in Tuolumne County, California: 59.6°F (1901-2020)
  • Reporting weather station details: 1,675 ft. elevation, operational for 119 years

11. Hot Springs, Montana (Sanders County)

  • Coldest June temperature on record: 29°F, on June 8, 2026
  • Previous record low in June: 31°F, on June 12, 2018
  • Average June temperature in Sanders County, Montana: 55.9°F (1901-2020)
  • Reporting weather station details: 2,960 ft. elevation, operational for 35 years
Tranquil countryside scene with a tree under clear blue skies near Boise, Idaho.
Photo by Brett Sayles on Pexels

10. Sherwin, Idaho (Latah County)

  • Coldest June temperature on record: 27°F, on June 8, 2026
  • Previous record low in June: 28°F, on June 10, 1999
  • Average June temperature in Latah County, Idaho: 57.8°F (1901-2020)
  • Reporting weather station details: 3,200 ft. elevation, operational for 36 years

9. Leiter 9 N, Wyoming (Sheridan County)

  • Coldest June temperature on record: 27°F, on June 8, 2026
  • Previous record low in June: 31°F, on June 19, 2024
  • Average June temperature in Sheridan County, Wyoming: 58.6°F (1901-2020)
  • Reporting weather station details: 4,160 ft. elevation, operational for 61 years

8. Hogatza River, Alaska (Northwest Arctic Borough)

  • Coldest June temperature on record: 26°F, on June 9, 2026
  • Previous record low in June: 27°F, on June 3, 2006
  • Average June temperature in Northwest Arctic Borough, Alaska: N/A
  • Reporting weather station details: 685 ft. elevation, operational for 33 years

7. Port Alsworth, Alaska (Lake and Peninsula Borough)

  • Coldest June temperature on record: 26°F, on June 1, 2026
  • Previous record low in June: 27°F, on June 6, 2013
  • Average June temperature in Lake and Peninsula Borough, Alaska: N/A
  • Reporting weather station details: 260 ft. elevation, operational for 33 years

6. Crystal, Idaho (Power County)

  • Coldest June temperature on record: 25°F, on June 11, 2026
  • Previous record low in June: 26°F, on June 15, 2022
  • Average June temperature in Power County, Idaho: 60.2°F (1901-2020)
  • Reporting weather station details: 5,064 ft. elevation, operational for 41 years

5. Baker City Airport, Oregon (Baker County)

  • Coldest June temperature on record: 25°F, on June 11, 2026
  • Previous record low in June: 26°F, on June 4, 1962
  • Average June temperature in Baker County, Oregon: 57.4°F (1901-2020)
  • Reporting weather station details: 3,363 ft. elevation, operational for 83 years

4. Somsen Ranch, Idaho (Caribou County)

  • Coldest June temperature on record: 22°F, on June 2, 2026
  • Previous record low in June: 24°F, on June 1, 2026
  • Average June temperature in Caribou County, Idaho: 55.7°F (1901-2020)
  • Reporting weather station details: 6,800 ft. elevation, operational for 36 years

3. Quartz Creek, Alaska (Kenai Peninsula Borough)

  • Coldest June temperature on record: 20°F, on June 9, 2026
  • Previous record low in June: 22°F, on June 2, 2023
  • Average June temperature in Kenai Peninsula Borough, Alaska: N/A
  • Reporting weather station details: 427 ft. elevation, operational for 36 years

2. Gros Ventre Summit, Wyoming (Sublette County)

  • Coldest June temperature on record: 17°F, on June 11, 2026
  • Previous record low in June: 19°F, on June 8, 2005
  • Average June temperature in Sublette County, Wyoming: 51°F (1901-2020)
  • Reporting weather station details: 8,750 ft. elevation, operational for 40 years

1. Lewis Lake Divide, Wyoming (Teton County)

  • Coldest June temperature on record: 17°F, on June 4, 2026
  • Previous record low in June: 21°F, on June 6, 1995
  • Average June temperature in Teton County, Wyoming: 49.3°F (1901-2020)
  • Reporting weather station details: 7,850 ft. elevation, operational for 42 years


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