Historical Race Day Weather for the B and A Marathon

March 29, 2026

Race day snapshot

Partially cloudy

Start Line Conditions

Start Temp 34°F 1°C

Start Humidity 67% Humidity

Wind No Wind Wind

Race day high 57°F 14°C

Race day low 31°F -1°C

PR Score 98.30 Normal score 98.75

Course Score 98.30 Course-only Score

Course-adjusted pacing

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March 30, 2025

Race day snapshot

Partially cloudy

Start Line Conditions

Start Temp 55°F 13°C

Start Humidity 81% Humidity

Wind ESE 8 mph Wind

Race day high 78°F 26°C

Race day low 55°F 13°C

PR Score 97.48 Normal score 98.75

Course Score 98.30 Course-only Score

March 24, 2024

Race day snapshot

Clear

Start Line Conditions

Start Temp 34°F 1°C

Start Humidity 59% Humidity

Wind NNW 8 mph Wind

Race day high 47°F 8°C

Race day low 33°F 1°C

PR Score 98.30 Normal score 98.75

Course Score 98.30 Course-only Score

March 26, 2023

Race day snapshot

Clear

Start Line Conditions

Start Temp 51°F 11°C

Start Humidity 49% Humidity

Wind W 11 mph Wind

Race day high 63°F 17°C

Race day low 48°F 9°C

PR Score 98.30 Normal score 98.75

Course Score 98.30 Course-only Score

March 27, 2022

Race day snapshot

Clear

Start Line Conditions

Start Temp 36°F 2°C

Start Humidity 66% Humidity

Wind WNW 15 mph Wind

Race day high 44°F 7°C

Race day low 31°F -1°C

PR Score 98.30 Normal score 98.75

Course Score 98.30 Course-only Score

November 30, -0001

Race day snapshot

Overcast

Start Line Conditions

Start Temp 41°F 5°C

Start Humidity 66% Humidity

Wind NNE 9 mph Wind

Race day high 53°F 12°C

Race day low 41°F 5°C

PR Score 98.30 Normal score 98.75

Course Score 98.30 Course-only Score

March 31, 2019

Race day snapshot

Clear

Start Line Conditions

Start Temp 61°F 16°C

Start Humidity 64% Humidity

Wind NE 8 mph Wind

Race day high 61°F 16°C

Race day low 36°F 2°C

PR Score 97.71 Normal score 98.75

Course Score 98.30 Course-only Score

April 8, 2018

Race day snapshot

Partly Cloudy

Start Line Conditions

Start Temp 34°F 1°C

Start Humidity 59% Humidity

Wind N 11 mph Wind

Race day high 49°F 9°C

Race day low 33°F 1°C

PR Score 98.30 Normal score 98.75

Course Score 98.30 Course-only Score

March 26, 2017

Race day snapshot

Overcast

Start Line Conditions

Start Temp 47°F 8°C

Start Humidity 82% Humidity

Wind ENE 10 mph Wind

Race day high 52°F 11°C

Race day low 48°F 9°C

PR Score 98.30 Normal score 98.75

Course Score 98.30 Course-only Score

March 20, 2016

Race day snapshot

Cloudy

Start Line Conditions

Start Temp 37°F 3°C

Start Humidity 85% Humidity

Wind NE 10 mph Wind

Race day high 42°F 6°C

Race day low 36°F 2°C

PR Score 98.30 Normal score 98.75

Course Score 98.30 Course-only Score

March 29, 2015

Race day snapshot

Clear

Start Line Conditions

Start Temp 23°F -5°C

Start Humidity 62% Humidity

Wind NW 9 mph Wind

Race day high 45°F 7°C

Race day low 23°F -5°C

PR Score 98.30 Normal score 98.75

Course Score 98.30 Course-only Score

March 30, 2014

Race day snapshot

Cloudy

Start Line Conditions

Start Temp 49°F 9°C

Start Humidity 86% Humidity

Wind NW 11 mph Wind

Race day high 49°F 9°C

Race day low 46°F 8°C

PR Score 98.30 Normal score 98.75

Course Score 98.30 Course-only Score

March 16, 2013

Race day snapshot

Cloudy

Start Line Conditions

Start Temp 40°F 4°C

Start Humidity 70% Humidity

Wind E 4 mph Wind

Race day high 46°F 8°C

Race day low 39°F 4°C

PR Score 98.30 Normal score 98.75

Course Score 98.30 Course-only Score