Late Autumn at William O'Brien State Park, Minnesota

Month by month

Marine on St. Croix in October

Peak fall color, crisp mornings and the village at its most photogenic.

Photo: Tony Webster from Minneapolis, Minnesota, United States / CC BY 2.0, via Wikimedia Commons

57°Faverage high
43°Faverage low
2.89 inprecipitation9 wet days
1.0 insnowfall
10.9 hdaylightsunrise 7:25 AM · sunset 6:28 PM

What October is like

October is the month most visitors remember. Maples in the river ravines turn orange and red, the oaks bronze, and the St. Croix mirrors it all on still mornings. Color usually peaks in the first half of the month. The first hard freeze arrives around the end of October in a typical year.

In October, Marine on St. Croix averages a high of 57°F and a low of 43°F. Expect about 2.9 in of precipitation (liquid equivalent) and roughly 1 in of snow. About 3 nights dip to freezing. Days last about 10.9 hours, with roughly 7.2 hours of sunshine.

The river in October

Long-term average flow at St. Croix Falls in October is 3,981 cfs — close to the yearly average.

Best things to do in October

Based on climate normals and when wildlife is most often recorded, October is a good month for: hiking, mushrooms.

  • Drive Highway 95 between Stillwater and Taylors Falls for the colors.
  • Photograph the village and the river at sunrise.
  • Visit the mill ruins as leaves fall and the foundations reappear.

What to pack

  • warm layers and a fleece
  • rain shell
  • waterproof shoes for muddy trails

Events in October

Wildlife to look for in October

Species with a large share of their local iNaturalist records in October. The strip shows each species' records across the year.

Birds

Rusty Blackbird

Rusty Blackbird

Euphagus carolinus

4 local records · peak October

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(c) trisha_s, some rights reserved (CC BY-NC), uploaded by trisha_s

White-throated Sparrow

White-throated Sparrow

Zonotrichia albicollis

55 local records · peak April

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Shenandoah National Park, no known copyright restrictions (public domain)

Golden-crowned Kinglet

Golden-crowned Kinglet

Regulus satrapa

16 local records · peak October

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(c) Nick Tepper, some rights reserved (CC BY-NC), uploaded by Nick Tepper

Winter Wren

Winter Wren

Troglodytes hiemalis

4 local records · peak October

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(c) Tom Murray, some rights reserved (CC BY-NC), uploaded by Tom Murray

Plants & wildflowers

red maple

Red maple

Acer rubrum

13 local records · peak October

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no rights reserved, uploaded by mefisher

northern red oak

Northern red oak

Quercus rubra

19 local records · peak October

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(c) ssimeto, some rights reserved (CC BY-NC)

northern pin oak

Northern pin oak

Quercus ellipsoidalis

13 local records · peak October

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(c) Elijah Okeefe, some rights reserved (CC BY-NC), uploaded by Elijah Okeefe

alder buckthorn

Alder buckthorn

Frangula alnus

20 local records · peak October

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(c) Sten Porse, some rights reserved (CC BY-SA)

Mushrooms & fungi

Velvet Foot

Velvet Foot

Flammulina velutipes

4 local records · peak October

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(c) stephenjaygould, some rights reserved (CC BY-NC), uploaded by stephenjaygould

aspen bolete

Aspen bolete

Leccinum insigne

2 local records · peak October

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(c) Tom Zegler, some rights reserved (CC BY-NC)

chaga

Chaga

Inonotus obliquus

2 local records · peak October

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(c) aleksi17, some rights reserved (CC BY-NC)

crowded parchment

Crowded parchment

Stereum complicatum

9 local records · peak October

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(c) Gordon Walker, some rights reserved (CC BY-NC), uploaded by Gordon Walker

Insects & butterflies

Linden Looper Moth

Linden Looper Moth

Erannis tiliaria

6 local records · peak October

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(c) Aaron Carlson, some rights reserved (CC BY), uploaded by Aaron Carlson

Shadow Darner

Shadow Darner

Aeshna umbrosa

3 local records · peak October

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(c) Guy Lemelin, some rights reserved (CC BY-NC), uploaded by Guy Lemelin

Autumn Meadowhawk

Autumn Meadowhawk

Sympetrum vicinum

26 local records · peak October

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(c) Cameron Eckert, some rights reserved (CC BY-NC), uploaded by Cameron Eckert

Brown Marmorated Stink Bug

Brown Marmorated Stink Bug

Halyomorpha halys

4 local records · peak October

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(c) Konrad Zobel, some rights reserved (CC BY-NC-ND), uploaded by Konrad Zobel

Mammals

Northern Short-tailed Shrew

Northern Short-tailed Shrew

Blarina brevicauda

12 local records · peak June

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(c) laraoutside, some rights reserved (CC BY-NC)

White-tailed Deer

White-tailed Deer

Odocoileus virginianus

256 local records · peak July

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(c) jefferykarafa, some rights reserved (CC BY-NC), uploaded by jefferykarafa

Domestic Cat

Domestic Cat

Felis catus

32 local records · peak September

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(c) Von.grzanka, some rights reserved (CC BY-SA)

Virginia Opossum

Virginia Opossum

Didelphis virginiana

15 local records · peak August

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(c) Michelle Herman, some rights reserved (CC BY-NC), uploaded by Michelle Herman

Reptiles & amphibians

Red-bellied Snake

Red-bellied Snake

Storeria occipitomaculata

26 local records · peak October

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(c) Jonathan Gagnon, some rights reserved (CC BY-NC), uploaded by Jonathan Gagnon

Eastern Tiger Salamander

Eastern Tiger Salamander

Ambystoma tigrinum

13 local records · peak October

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(c) Peter Paplanus, some rights reserved (CC BY)

Common Garter Snake

Common Garter Snake

Thamnophis sirtalis

46 local records · peak May

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(c) Mark Kluge, some rights reserved (CC BY-NC), uploaded by Mark Kluge

Green Frog

Green Frog

Lithobates clamitans

60 local records · peak July

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(c) suburbirder, some rights reserved (CC BY-NC), uploaded by suburbirder