Historical Race Day Weather for the Champlain Islands Marathon

October 18, 2026

Race day snapshot

Partially cloudy

Start Line Conditions

Start Temp 42°F 6°C

Start Humidity 74% Humidity

Wind NW 13 mph Wind

Race day high 47°F 8°C

Race day low 41°F 5°C

PR Score 98.23 Normal score 97.73

Course Score 98.23 Course-only Score

Course-adjusted pacing

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October 19, 2025

Race day snapshot

Partially cloudy

Start Line Conditions

Start Temp 47°F 8°C

Start Humidity 79% Humidity

Wind ENE 2 mph Wind

Race day high 70°F 21°C

Race day low 44°F 7°C

PR Score 97.86 Normal score 97.73

Course Score 98.23 Course-only Score

October 20, 2024

Race day snapshot

Partially cloudy

Start Line Conditions

Start Temp 41°F 5°C

Start Humidity 81% Humidity

Wind No Wind Wind

Race day high 67°F 19°C

Race day low 35°F 2°C

PR Score 98.23 Normal score 97.73

Course Score 98.23 Course-only Score

October 22, 2023

Race day snapshot

Rain, Overcast

Start Line Conditions

Start Temp 47°F 8°C

Start Humidity 79% Humidity

Wind W 12 mph Wind

Race day high 49°F 9°C

Race day low 44°F 7°C

PR Score 98.23 Normal score 97.73

Course Score 98.23 Course-only Score

October 16, 2022

Race day snapshot

Partly Cloudy

Start Line Conditions

Start Temp 46°F 8°C

Start Humidity 82% Humidity

Wind SSW 4 mph Wind

Race day high 57°F 14°C

Race day low 45°F 7°C

PR Score 98.23 Normal score 97.73

Course Score 98.23 Course-only Score

October 17, 2021

Race day snapshot

Clear

Start Line Conditions

Start Temp 50°F 10°C

Start Humidity 81% Humidity

Wind W 6 mph Wind

Race day high 60°F 16°C

Race day low 48°F 9°C

PR Score 97.41 Normal score 97.73

Course Score 98.23 Course-only Score

October 13, 2019

Race day snapshot

Clear

Start Line Conditions

Start Temp 47°F 8°C

Start Humidity 86% Humidity

Wind SW 2 mph Wind

Race day high 60°F 16°C

Race day low 46°F 8°C

PR Score 98.23 Normal score 97.73

Course Score 98.23 Course-only Score

October 14, 2018

Race day snapshot

Clear

Start Line Conditions

Start Temp 39°F 4°C

Start Humidity 80% Humidity

Wind SW 6 mph Wind

Race day high 56°F 13°C

Race day low 37°F 3°C

PR Score 98.23 Normal score 97.73

Course Score 98.23 Course-only Score

October 15, 2017

Race day snapshot

Partly Cloudy

Start Line Conditions

Start Temp 62°F 17°C

Start Humidity 84% Humidity

Wind S 11 mph Wind

Race day high 73°F 23°C

Race day low 58°F 14°C

PR Score 95.77 Normal score 97.73

Course Score 98.23 Course-only Score

October 9, 2016

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 52°F 11°C

Start Humidity 72% Humidity

Wind NW 11 mph Wind

Race day high 59°F 15°C

Race day low 51°F 11°C

PR Score 98.23 Normal score 97.73

Course Score 98.23 Course-only Score

October 11, 2015

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 53°F 12°C

Start Humidity 61% Humidity

Wind S 18 mph Wind

Race day high 66°F 19°C

Race day low 42°F 6°C

PR Score 98.08 Normal score 97.73

Course Score 98.23 Course-only Score

October 12, 2014

Race day snapshot

Clear

Start Line Conditions

Start Temp 44°F 7°C

Start Humidity 76% Humidity

Wind SW 2 mph Wind

Race day high 56°F 13°C

Race day low 40°F 4°C

PR Score 98.23 Normal score 97.73

Course Score 98.23 Course-only Score

October 13, 2013

Race day snapshot

Clear

Start Line Conditions

Start Temp 59°F 15°C

Start Humidity 71% Humidity

Wind S 9 mph Wind

Race day high 72°F 22°C

Race day low 50°F 10°C

PR Score 97.31 Normal score 97.73

Course Score 98.23 Course-only Score

October 14, 2012

Race day snapshot

Overcast

Start Line Conditions

Start Temp 42°F 6°C

Start Humidity 90% Humidity

Wind S 7 mph Wind

Race day high 59°F 15°C

Race day low 36°F 2°C

PR Score 98.23 Normal score 97.73

Course Score 98.23 Course-only Score

October 16, 2011

Race day snapshot

Overcast

Start Line Conditions

Start Temp 52°F 11°C

Start Humidity 62% Humidity

Wind WSW 6 mph Wind

Race day high 59°F 15°C

Race day low 48°F 9°C

PR Score 98.23 Normal score 97.73

Course Score 98.23 Course-only Score

October 17, 2010

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 43°F 6°C

Start Humidity 76% Humidity

Wind SSW 6 mph Wind

Race day high 55°F 13°C

Race day low 33°F 1°C

PR Score 98.23 Normal score 97.73

Course Score 98.23 Course-only Score