Historical Race Day Weather for the Santa Rosa Marathon

August 23, 2026

Race day snapshot

Partially cloudy

Start Line Conditions

Start Temp 54°F 12°C

Start Humidity 93% Humidity

Wind E 2 mph Wind

Race day high 83°F 28°C

Race day low 54°F 12°C

PR Score 97.98 Normal score 98.47

Course Score 99.16 Course-only Score

Course-adjusted pacing

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August 24, 2025

Race day snapshot

Overcast

Start Line Conditions

Start Temp 55°F 13°C

Start Humidity 94% Humidity

Wind N 2 mph Wind

Race day high 81°F 27°C

Race day low 55°F 13°C

PR Score 97.82 Normal score 98.47

Course Score 99.16 Course-only Score

August 25, 2024

Race day snapshot

Clear

Start Line Conditions

Start Temp 52°F 11°C

Start Humidity 89% Humidity

Wind NNE 1 mph Wind

Race day high 83°F 28°C

Race day low 50°F 10°C

PR Score 98.27 Normal score 98.47

Course Score 99.16 Course-only Score

August 27, 2023

Race day snapshot

Partially cloudy

Start Line Conditions

Start Temp 53°F 12°C

Start Humidity 89% Humidity

Wind SW 2 mph Wind

Race day high 85°F 29°C

Race day low 53°F 12°C

PR Score 98.27 Normal score 98.47

Course Score 99.16 Course-only Score

August 28, 2022

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 50°F 10°C

Start Humidity 100% Humidity

Wind SSE 2 mph Wind

Race day high 77°F 25°C

Race day low 49°F 9°C

PR Score 98.94 Normal score 98.47

Course Score 99.16 Course-only Score

August 29, 2021

Race day snapshot

Clear

Start Line Conditions

Start Temp 56°F 13°C

Start Humidity 87% Humidity

Wind NW 1 mph Wind

Race day high 89°F 32°C

Race day low 55°F 13°C

PR Score 97.79 Normal score 98.47

Course Score 99.16 Course-only Score

August 25, 2019

Race day snapshot

Overcast

Start Line Conditions

Start Temp 56°F 13°C

Start Humidity 91% Humidity

Wind WSW 1 mph Wind

Race day high 88°F 31°C

Race day low 54°F 12°C

PR Score 97.50 Normal score 98.47

Course Score 99.16 Course-only Score

August 26, 2018

Race day snapshot

Partly Cloudy

Start Line Conditions

Start Temp 47°F 8°C

Start Humidity 100% Humidity

Wind SSW 3 mph Wind

Race day high 75°F 24°C

Race day low 47°F 8°C

PR Score 99.10 Normal score 98.47

Course Score 99.16 Course-only Score

August 27, 2017

Race day snapshot

Clear

Start Line Conditions

Start Temp 62°F 17°C

Start Humidity 64% Humidity

Wind NNE 1 mph Wind

Race day high 94°F 34°C

Race day low 60°F 16°C

PR Score 97.70 Normal score 98.47

Course Score 99.16 Course-only Score

August 28, 2016

Race day snapshot

Overcast

Start Line Conditions

Start Temp 58°F 14°C

Start Humidity 87% Humidity

Wind No Wind Wind

Race day high 79°F 26°C

Race day low 53°F 12°C

PR Score 97.86 Normal score 98.47

Course Score 99.20 Course-only Score

August 23, 2015

Race day snapshot

Cloudy

Start Line Conditions

Start Temp 57°F 14°C

Start Humidity 93% Humidity

Wind S 2 mph Wind

Race day high 78°F 26°C

Race day low 57°F 14°C

PR Score 98.06 Normal score 98.47

Course Score 99.72 Course-only Score

August 24, 2014

Race day snapshot

Cloudy

Start Line Conditions

Start Temp 56°F 13°C

Start Humidity 93% Humidity

Wind S 4 mph Wind

Race day high 73°F 23°C

Race day low 55°F 13°C

PR Score 98.59 Normal score 98.47

Course Score 99.72 Course-only Score

August 25, 2013

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 57°F 14°C

Start Humidity 89% Humidity

Wind No Wind Wind

Race day high 79°F 26°C

Race day low 56°F 13°C

PR Score 97.30 Normal score 98.47

Course Score 99.72 Course-only Score