Historical Race Day Weather for the Pacific Northwest Marathon

September 20, 2025

Race day snapshot

Clear

Start Line Conditions

Start Temp 54°F 12°C

Start Humidity 89% Humidity

Wind WSW 9 mph Wind

Race day high 81°F 27°C

Race day low 53°F 12°C

PR Score 98.25 Normal score 99.73

Course Score 99.73 Course-only Score

Course-adjusted pacing

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September 21, 2024

Race day snapshot

Clear

Start Line Conditions

Start Temp 45°F 7°C

Start Humidity 96% Humidity

Wind N 3 mph Wind

Race day high 76°F 24°C

Race day low 45°F 7°C

PR Score 99.55 Normal score 99.73

Course Score 99.73 Course-only Score

September 16, 2023

Race day snapshot

Clear

Start Line Conditions

Start Temp 54°F 12°C

Start Humidity 77% Humidity

Wind S 2 mph Wind

Race day high 88°F 31°C

Race day low 52°F 11°C

PR Score 98.25 Normal score 99.73

Course Score 99.73 Course-only Score

September 17, 2022

Race day snapshot

Overcast

Start Line Conditions

Start Temp 48°F 9°C

Start Humidity 89% Humidity

Wind NNE 2 mph Wind

Race day high 71°F 22°C

Race day low 48°F 9°C

PR Score 99.53 Normal score 99.73

Course Score 99.73 Course-only Score

September 18, 2021

Race day snapshot

Rain

Start Line Conditions

Start Temp 57°F 14°C

Start Humidity 98% Humidity

Wind S 10 mph Wind

Race day high 67°F 19°C

Race day low 56°F 13°C

PR Score 98.01 Normal score 99.73

Course Score 100.04 Course-only Score

September 21, 2019

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 53°F 12°C

Start Humidity 98% Humidity

Wind W 1 mph Wind

Race day high 74°F 23°C

Race day low 52°F 11°C

PR Score 98.70 Normal score 99.73

Course Score 100.04 Course-only Score

September 15, 2018

Race day snapshot

Foggy

Start Line Conditions

Start Temp 45°F 7°C

Start Humidity 96% Humidity

Wind S 2 mph Wind

Race day high 67°F 19°C

Race day low 45°F 7°C

PR Score 100.04 Normal score 99.73

Course Score 100.04 Course-only Score

May 13, 2017

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 45°F 7°C

Start Humidity 95% Humidity

Wind S 6 mph Wind

Race day high 54°F 12°C

Race day low 44°F 7°C

PR Score 99.57 Normal score 99.73

Course Score 99.57 Course-only Score

May 28, 2016

Race day snapshot

Partly Cloudy

Start Line Conditions

Start Temp 48°F 9°C

Start Humidity 83% Humidity

Wind N 2 mph Wind

Race day high 69°F 21°C

Race day low 44°F 7°C

PR Score 99.57 Normal score 99.73

Course Score 99.57 Course-only Score

May 2, 2015

Race day snapshot

Partly Cloudy

Start Line Conditions

Start Temp 43°F 6°C

Start Humidity 89% Humidity

Wind N 5 mph Wind

Race day high 68°F 20°C

Race day low 40°F 4°C

PR Score 99.57 Normal score 99.73

Course Score 99.57 Course-only Score