Your nature year
Eureka, Californiathrough the year
When do frost, green-up and fall color come to Eureka?
Whiskeytown, 84 miles from Eureka, is the nearest wildflowers spot on this site, Apr 1–Aug 31 (local timing). For fall foliage, the nearest is Mount Shasta (102 mi, usually well under way by late October (statewide)). Expect about 288 frost-free days in Eureka: the last spring frost usually comes around Feb 22, the first fall one around Dec 7, going by NOAA's Eureka Wfo Woodley Is station 0.9 miles away. Spring takes about 5 weeks to go from leaf to bloom. Leaves usually come out around Jan 30 and the first flowers around Mar 9. We follow 4 places within 150 miles of Eureka; the nearest lies 84 miles to the east. Across California, fall color is usually well under way by late October.
Updated Sep 28. Sources: US Census Bureau, 2024 Gazetteer (places) ↗ (opens in a new tab), US Census Bureau, city and town population estimates, 2024 ↗ (opens in a new tab), NOAA NCEI U.S. Climate Normals 1991–2020 (annual/seasonal) ↗ (opens in a new tab)
Eureka's year at a glance
- Frost possible
- Frost-free, ~Feb 22 to ~Dec 7
- First leaf ~Jan 30
- First bloom ~Mar 9
- Fall color under way ~Oct 28 (CA)
- Today
Near Eureka right now
- Fall color is usually well under way by late October in CaliforniaStatewide · USA-NPN volunteer observations, 2020–2025 · not a forecast~4 weeks
- First fall frost usually around Dec 7 · last spring frost around Feb 22NOAA 1991–2020 normals, Eureka Wfo Woodley Is (0.9 mi, 50% dates)~2 months
- Lassen Volcanic · 141 mi · Local timing: May 21–Sep 30Wildflowers · in its window now
- Fall foliage · Mount Shasta · 102 miStatewide: usually well under way by late October~4 weeks
Eureka's nature year
- Spring green-upJan
- Last spring frostFeb
- Wildflowers · WhiskeytownApr–Aug
- Fall color (CA)Oct
- First fall frostDec
Nearby, season by season
Fall foliage
- Mount Shasta · 102 miStatewide: usually well under way by late October~4 weeks
- Hat Creek Rim · 144 miStatewide: usually well under way by late October~4 weeks
Wildflowers
- Whiskeytown · 84 miLocal timing: Apr 1–Aug 31~6 months
- Lassen Volcanic · 141 miLocal timing: May 21–Sep 30
Frost and green-up
Last spring frost
Feb 22
Average (50% date)
First fall frost
Dec 7
About 288 days without frost between
Spring green-up
Jan 30
First bloom around Mar 9
Frost: NOAA 1991–2020 climate normals at Eureka Wfo Woodley Is (0.9 mi from Eureka), the day a 32 °F night is as likely as not. Green-up: the USA-NPN Spring Index, 1991–2020 average at the town.
Questions people ask
When is the first frost in Eureka?
On average around Dec 7, and the last spring frost around Feb 22: about 288 days without frost between. These are NOAA's 1991–2020 normals at Eureka Wfo Woodley Is, 0.9 miles away (the day a 32 °F night is as likely as not).
When does spring green-up reach Eureka?
The USA-NPN Spring Index puts first leaf around Jan 30 and first bloom around Mar 9, on average for 1991–2020 at the town.
Where can I see fall foliage near Eureka?
Mount Shasta, 102 miles (statewide: usually well under way by late October); Hat Creek Rim, 144 miles (statewide: usually well under way by late October). Distances are straight-line.
Where can I see wildflowers near Eureka?
Whiskeytown, 84 miles (local timing: Apr 1–Aug 31); Lassen Volcanic, 141 miles (local timing: May 21–Sep 30). Distances are straight-line.
How we know
US Census Bureau, 2024 Gazetteer (places) (opens in a new tab) (Sep 27) · US Census Bureau, city and town population estimates, 2024 (opens in a new tab) (Sep 27) · NOAA NCEI U.S. Climate Normals 1991–2020 (annual/seasonal) (opens in a new tab) (Sep 27) · USA National Phenology Network, Spring Index 1991–2020 averages (opens in a new tab) (Sep 27) · USA National Phenology Network, colored leaves observations (opens in a new tab) (Sep 28)