Historical Race Day Weather for the Ann Arbor Marathon

October 4, 2026

Race day snapshot

Overcast

Start Line Conditions

Start Temp 57°F 14°C

Start Humidity 91% Humidity

Wind SSW 10 mph Wind

Race day high 70°F 21°C

Race day low 58°F 14°C

PR Score 95.66 Normal score 97.65

Course Score 97.65 Course-only Score

Course-adjusted pacing

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September 28, 2025

Race day snapshot

Partially cloudy

Start Line Conditions

Start Temp 63°F 17°C

Start Humidity 74% Humidity

Wind WNW 1 mph Wind

Race day high 81°F 27°C

Race day low 54°F 12°C

PR Score 95.29 Normal score 97.65

Course Score 97.65 Course-only Score

October 13, 2024

Race day snapshot

Rain, Overcast

Start Line Conditions

Start Temp 50°F 10°C

Start Humidity 95% Humidity

Wind ENE 7 mph Wind

Race day high 56°F 13°C

Race day low 45°F 7°C

PR Score 97.25 Normal score 97.65

Course Score 97.36 Course-only Score

October 1, 2023

Race day snapshot

Clear

Start Line Conditions

Start Temp 52°F 11°C

Start Humidity 99% Humidity

Wind No Wind Wind

Race day high 76°F 24°C

Race day low 50°F 10°C

PR Score 95.68 Normal score 97.65

Course Score 97.36 Course-only Score

October 2, 2022

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 54°F 12°C

Start Humidity 92% Humidity

Wind NNE 10 mph Wind

Race day high 67°F 19°C

Race day low 47°F 8°C

PR Score 97.07 Normal score 97.65

Course Score 97.36 Course-only Score

October 24, 2021

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 35°F 2°C

Start Humidity 100% Humidity

Wind N 2 mph Wind

Race day high 49°F 9°C

Race day low 34°F 1°C

PR Score 97.36 Normal score 97.65

Course Score 97.36 Course-only Score

March 24, 2019

Race day snapshot

Overcast

Start Line Conditions

Start Temp 33°F 1°C

Start Humidity 68% Humidity

Wind SW 5 mph Wind

Race day high 57°F 14°C

Race day low 31°F -1°C

PR Score 97.36 Normal score 97.65

Course Score 97.36 Course-only Score

May 20, 2018

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 59°F 15°C

Start Humidity 88% Humidity

Wind N 6 mph Wind

Race day high 66°F 19°C

Race day low 57°F 14°C

PR Score 95.80 Normal score 97.65

Course Score 97.36 Course-only Score

March 26, 2017

Race day snapshot

Overcast

Start Line Conditions

Start Temp 39°F 4°C

Start Humidity 92% Humidity

Wind E 4 mph Wind

Race day high 58°F 14°C

Race day low 39°F 4°C

PR Score 97.95 Normal score 97.65

Course Score 97.95 Course-only Score

April 3, 2016

Race day snapshot

Mostly Clear

Start Line Conditions

Start Temp 24°F -4°C

Start Humidity 65% Humidity

Wind W 8 mph Wind

Race day high 44°F 7°C

Race day low 23°F -5°C

PR Score 97.95 Normal score 97.65

Course Score 97.95 Course-only Score

March 29, 2015

Race day snapshot

Mostly Clear

Start Line Conditions

Start Temp 16°F -9°C

Start Humidity 76% Humidity

Wind SW 6 mph Wind

Race day high 42°F 6°C

Race day low 15°F -9°C

PR Score 97.95 Normal score 97.65

Course Score 97.95 Course-only Score

March 30, 2014

Race day snapshot

Clear

Start Line Conditions

Start Temp 26°F -3°C

Start Humidity 71% Humidity

Wind N 9 mph Wind

Race day high 48°F 9°C

Race day low 25°F -4°C

PR Score 97.95 Normal score 97.65

Course Score 97.95 Course-only Score

June 9, 2013

Race day snapshot

Partly Cloudy

Start Line Conditions

Start Temp 60°F 16°C

Start Humidity 83% Humidity

Wind E 5 mph Wind

Race day high 77°F 25°C

Race day low 57°F 14°C

PR Score 96.38 Normal score 97.65

Course Score 97.95 Course-only Score

June 17, 2012

Race day snapshot

Start Line Conditions

Start Temp 68°F 20°C

Start Humidity 90% Humidity

Wind 0 mph Wind

Race day high 82°F 28°C

Race day low 55°F 13°C

PR Score 92.75 Normal score 97.65

Course Score 97.95 Course-only Score