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Your nature year

Walla Walla, Washingtonthrough the year

When do frost, green-up and fall color come to Walla Walla?

Leaves usually come out around Mar 5 and the first flowers around Apr 14. Spring takes about 6 weeks to go from leaf to bloom. Expect about 218 frost-free days in Walla Walla: the last spring frost usually comes around Mar 27, the first fall one around Oct 31, going by NOAA's Walla Walla Regional Airport station 3.1 miles away. For a day trip, Hanford Reach is 67 miles off; its wildflowers is Apr 1–May 15 (local timing). We follow 3 places within 150 miles of Walla Walla; the nearest lies 67 miles to the northwest. Statewide, Washington's 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)

Walla Walla's year at a glance

  • Frost possible
  • Frost-free, ~Mar 27 to ~Oct 31
  • First leaf ~Mar 5
  • First bloom ~Apr 14
  • Fall color under way ~Oct 28 (WA)
  • Today

Near Walla Walla right now

  • Fall color is usually well under way by late October in WashingtonStatewide · USA-NPN volunteer observations, 2020–2025 · not a forecast
    ~4 weeks
  • First fall frost usually around Oct 31 · last spring frost around Mar 27NOAA 1991–2020 normals, Walla Walla Regional Airport (3.1 mi, 50% dates)
    ~5 weeks
  • Wildflowers · Hanford Reach · 67 miLocal timing: Apr 1–May 15
    ~6 months

Walla Walla's nature year

From the town's own dates and its nearest places
  • Spring green-upMar
  • Last spring frostMar
  • Wildflowers · Hanford ReachApr–May
  • Fall color (WA)Oct
  • First fall frostOct

Nearby, season by season

Real places within 150 miles, straight-line

Wildflowers

Frost and green-up

Last spring frost

Mar 27

Average (50% date)

First fall frost

Oct 31

About 218 days without frost between

Spring green-up

Mar 5

First bloom around Apr 14

Frost: NOAA 1991–2020 climate normals at Walla Walla Regional Airport (3.1 mi from Walla Walla), 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 Walla Walla?

On average around Oct 31, and the last spring frost around Mar 27: about 218 days without frost between. These are NOAA's 1991–2020 normals at Walla Walla Regional Airport, 3.1 miles away (the day a 32 °F night is as likely as not).

When does spring green-up reach Walla Walla?

The USA-NPN Spring Index puts first leaf around Mar 5 and first bloom around Apr 14, on average for 1991–2020 at the town.

Where can I see wildflowers near Walla Walla?

Hanford Reach, 67 miles (local timing: Apr 1–May 15); Turnbull Refuge, 100 miles (usually May 11–20); John Day Fossil Beds, 121 miles (local timing: Apr 1–Jul 31). 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)

All our sources and how we use them →