Historical Race Day Weather for the Suffolk County Marathon

October 18, 2026

Race day snapshot

Clear

Start Line Conditions

Start Temp 47°F 8°C

Start Humidity 70% Humidity

Wind NW 13 mph Wind

Race day high 54°F 12°C

Race day low 47°F 8°C

PR Score 99.44 Normal score 99.47

Course Score 99.44 Course-only Score

Course-adjusted pacing

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October 19, 2025

Race day snapshot

Clear

Start Line Conditions

Start Temp 63°F 17°C

Start Humidity 80% Humidity

Wind SE 11 mph Wind

Race day high 69°F 21°C

Race day low 48°F 9°C

PR Score 96.87 Normal score 99.47

Course Score 99.44 Course-only Score

October 20, 2024

Race day snapshot

Clear

Start Line Conditions

Start Temp 56°F 13°C

Start Humidity 76% Humidity

Wind N 4 mph Wind

Race day high 74°F 23°C

Race day low 44°F 7°C

PR Score 98.68 Normal score 99.47

Course Score 99.44 Course-only Score

October 22, 2023

Race day snapshot

Partially cloudy

Start Line Conditions

Start Temp 53°F 12°C

Start Humidity 74% Humidity

Wind W 19 mph Wind

Race day high 57°F 14°C

Race day low 49°F 9°C

PR Score 99.44 Normal score 99.47

Course Score 99.44 Course-only Score

October 23, 2022

Race day snapshot

Overcast

Start Line Conditions

Start Temp 56°F 13°C

Start Humidity 100% Humidity

Wind ENE 10 mph Wind

Race day high 61°F 16°C

Race day low 54°F 12°C

PR Score 97.46 Normal score 99.47

Course Score 99.44 Course-only Score

October 24, 2021

Race day snapshot

Clear

Start Line Conditions

Start Temp 51°F 11°C

Start Humidity 86% Humidity

Wind NW 7 mph Wind

Race day high 61°F 16°C

Race day low 49°F 9°C

PR Score 99.35 Normal score 99.47

Course Score 99.44 Course-only Score

October 27, 2019

Race day snapshot

Light Rain

Start Line Conditions

Start Temp 60°F 16°C

Start Humidity 77% Humidity

Wind SE 9 mph Wind

Race day high 70°F 21°C

Race day low 55°F 13°C

PR Score 97.10 Normal score 99.47

Course Score 99.44 Course-only Score

October 28, 2018

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 47°F 8°C

Start Humidity 92% Humidity

Wind SW 3 mph Wind

Race day high 54°F 12°C

Race day low 47°F 8°C

PR Score 99.44 Normal score 99.47

Course Score 99.44 Course-only Score

October 29, 2017

Race day snapshot

Light Rain

Start Line Conditions

Start Temp 62°F 17°C

Start Humidity 96% Humidity

Wind SE 5 mph Wind

Race day high 65°F 18°C

Race day low 62°F 17°C

PR Score 96.30 Normal score 99.47

Course Score 99.44 Course-only Score

October 30, 2016

Race day snapshot

Partly Cloudy

Start Line Conditions

Start Temp 58°F 14°C

Start Humidity 86% Humidity

Wind W 4 mph Wind

Race day high 68°F 20°C

Race day low 55°F 13°C

PR Score 97.61 Normal score 99.47

Course Score 99.44 Course-only Score

September 13, 2015

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 79°F 26°C

Start Humidity 73% Humidity

Wind No Wind Wind

Race day high 79°F 26°C

Race day low 58°F 14°C

PR Score 99.44 Normal score 99.47

Course Score 99.44 Course-only Score