Your nature year
Butte, Montanathrough the year
When do frost, green-up and fall color come to Butte?
Spring green-up reaches town around May 3, with first blooms around Jun 7. Spring takes about 5 weeks to go from leaf to bloom. Expect about 84 frost-free days in Butte: the last spring frost usually comes around Jun 13, the first fall one around Sep 5, going by NOAA's Butte Bert Mooney Airport station 9 miles away. Lemhi Pass, 80 miles from Butte, is the nearest fall foliage spot on this site, Sep 21–Oct 31 (local timing). For wildflowers, the nearest is Yellowstone (146 mi, Apr 1–Jul 31 (local timing)). Head southwest for the closest of the 3 places we follow around Butte.
Updated Sep 27. 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)
Butte's year at a glance
- Frost possible
- Frost-free, ~Jun 13 to ~Sep 5
- First leaf ~May 3
- First bloom ~Jun 7
- Today
Near Butte right now
- Last spring frost usually around Jun 13 · first fall frost around Sep 5NOAA 1991–2020 normals, Butte Bert Mooney Airport (9 mi, 50% dates)~8 months
- Lemhi Pass · 80 mi · Local timing: Sep 21–Oct 31Fall foliage · in its window now
- Yellowstone · 146 mi · Local timing: Sep 1–Oct 31Fall foliage · in its window now
- Wildflowers · Yellowstone · 146 miLocal timing: Apr 1–Jul 31~6 months
Butte's nature year
- Wildflowers · YellowstoneApr–Jul
- Spring green-upMay
- Last spring frostJun
- Fall foliage · Lemhi PassNowSep–Oct
- First fall frostNowSep
Nearby, season by season
Fall foliage
- Lemhi Pass · 80 miLocal timing: Sep 21–Oct 31
- Lost Horse Canyon · 89 miRegional timing: Oct 1–31~3 days
- Yellowstone · 146 miLocal timing: Sep 1–Oct 31
Wildflowers
- Yellowstone · 146 miLocal timing: Apr 1–Jul 31~6 months
Frost and green-up
Last spring frost
Jun 13
Average (50% date)
First fall frost
Sep 5
About 84 days without frost between
Spring green-up
May 3
First bloom around Jun 7
Frost: NOAA 1991–2020 climate normals at Butte Bert Mooney Airport (9 mi from Butte), 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 Butte?
On average around Sep 5, and the last spring frost around Jun 13: about 84 days without frost between. These are NOAA's 1991–2020 normals at Butte Bert Mooney Airport, 9 miles away (the day a 32 °F night is as likely as not).
When does spring green-up reach Butte?
The USA-NPN Spring Index puts first leaf around May 3 and first bloom around Jun 7, on average for 1991–2020 at the town.
Where can I see fall foliage near Butte?
Lemhi Pass, 80 miles (local timing: Sep 21–Oct 31); Lost Horse Canyon, 89 miles (regional timing: Oct 1–31); Yellowstone, 146 miles (local timing: Sep 1–Oct 31). Distances are straight-line.
Where can I see wildflowers near Butte?
Yellowstone, 146 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)