Frost/Freeze in Oregon

Events

893

Deaths

1

Injuries

0

Damage

None recorded

• Frost and Freeze in Oregon, November 15 to 18, 20141 death · 1 eventAn upper ridge of high pressure and easterly winds resulted in widespread freezing temperatures from November 15th through November 18th. No crop formation was damaged, but frost formation on roads and bridges resulted in several traffic accidents, including one fatality.
• Frost and Freeze in Oregon, April 16 to 17, 202414 eventsA cool airmass over the region along with clearing skies resulted in freezing temperatures during the growing season which is April 1st to October 31st.
• Frost and Freeze in Oregon, March 11, 20068 eventsA Freeze Warning was issued for Oregon zones ORZ023/024/026 at 10/1410 PST, effective from 11/0000 til 11/0900 PST. The warning expired at 11/0900 PST. The above observations and others verified the warning with recorded low temperatures ranging from 15 to 35 degrees.
• Frost and Freeze in Oregon, March 12, 20068 eventsA Freeze Warning was issued for Oregon zones ORZ023/024/026 at 11/0858 PST, effective from 12/0100 til 12/0900 PST. It was extended to include zone ORZ022 at 11/1508 PST. The warning expired at 11/0900 PST.
• Frost and Freeze in Oregon, March 13, 20068 eventsA Freeze Warning was issued for Oregon zones ORZ024/026 at 12/1452 PST, effective from 13/0000 til 13/0900 PST. The warning expired at 13/0845 PST. The above observations and others verified the warning with recorded low temperatures ranging from 21 to 32 degrees.
• Frost and Freeze in Oregon, October 25 to 28, 20237 eventsIncreasing northerly flow reinforced by a cold arctic airmass behind a shortwave trough passage starting October 26th lead to temperatures region-wide dropping well below normal.
• Frost and Freeze in Oregon, April 4 to 5, 20247 eventsA cool upper trough settled over the region with clear skies, resulting in freezing temperatures during the growing season which is April 1st to October 31st.
• Frost and Freeze in Oregon, February 26, 20115 eventsClearing skies and a very cold air mass made for unusually cold temperatures in southern Oregon west of the Cascade range.
• Frost and Freeze in Oregon, February 26 to 27, 20115 eventsClearing skies and a very cold air mass made for unusually cold temperatures in southern Oregon west of the Cascade range.
• Frost and Freeze in Oregon, November 3, 20225 eventsNortherly flow aloft and mostly clear skies the morning of November 3rd led to several hours of temperatures at or below 32 degrees across the Blue Mountain Foothills, the Columbia Basin, the eastern Columbia River Gorge, the Simcoe Highlands, and north central Oregon.
• Frost and Freeze in Oregon, April 18 to 20, 20245 eventsClear skies in combination with dry flow regimes aloft resulted in good radiative cooling taking place at the surface. Temperatures in the morning had dropped to or below freezing for several hours in lower elevation locations between April 18th to the 20th.
• Frost and Freeze in Oregon, November 1, 20034 eventsA Frost Warning was issued this night for the zones listed above. The warning was actually issued at 0415 PST on 10/31, but it was in effect this night.
• Frost and Freeze in Oregon, October 30 to 31, 20034 eventsA Frost Warning was issued this night for the zones listed above. This turned out to be an exceptionally cold night with reported low temperatures ranging from 18 to 39.
• Frost and Freeze in Oregon, May 17 to 19, 20034 eventsA Frost Warning was issued for the above zones effective the night of 05/18. Reported low temperatures in the warning area ranged from 28 to 39 degrees. Overall, it appears that the warning verified, although ORZ023 likely should have been included in the warning area.
• Frost and Freeze in Oregon, October 11, 20084 eventsA strong cutoff low developed over the Great Basin, and strong northerly winds on the northwest side of the low brought cold air to the area. This, combined with clearing skies, led to a freeze event over most of the Medford CWA.
• Frost and Freeze in Oregon, October 12, 20084 eventsA strong cutoff low developed over the Great Basin, and strong northerly winds on the northwest side of the low brought cold air to the area. This, combined with clearing skies, led to a freeze event over most of the Medford CWA.
• Frost and Freeze in Oregon, April 8 to 9, 20104 eventsA cold air mass settled over Oregon which brought well below minimum temperatures to the area under mostly clear skies at night.
• Frost and Freeze in Oregon, April 10, 20104 eventsAnother night of well below normal minimum temperatures as a cold air mass continued over Oregon.
• Frost and Freeze in Oregon, October 26, 20114 eventsMostly clear skies and a cold air mass allowed temperatures to fall to near or below freezing this morning.
• Frost and Freeze in Oregon, October 27, 20114 eventsMostly clear skies and a cold air mass allowed temperatures to fall to near or below freezing this morning.
• Frost and Freeze in Oregon, November 25 to 26, 20154 eventsClearing skies and a cold air mass allowed temperatures to drop below freezing over portions of Western Oregon.
• Frost and Freeze in Oregon, November 26 to 27, 20154 eventsClearing skies and a cold air mass allowed temperatures to drop below freezing over portions of Southwest Oregon.
• Frost and Freeze in Oregon, April 12 to 13, 20234 eventsClear skies and light winds as high pressure built in behind a cold trough resulted in freezing temperatures in southwest Oregon.
• Frost and Freeze in Oregon, May 16 to 17, 20033 eventsA Frost Warning was issued for the above zones effective the night of 05/16. Reported low temperatures in the warning area ranged from 27 to 38 degrees, with the values below 30 degrees occurring at higher elevations.
• Frost and Freeze in Oregon, May 16 to 18, 20033 eventsA Frost Warning was issued for the above zones effective the night of 05/17. Reported low temperatures in the warning area ranged from 26 to 34 degrees. Several low temperature records were also set, including 32 at Medford and 27 at Ashland.

Frost/Freeze everywhereEvery kind of event in Oregon

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.