Historical Race Day Weather for the Delaware Marathon

April 19, 2026

Race day snapshot

Overcast

Start Line Conditions

Start Temp 55°F 13°C

Start Humidity 86% Humidity

Wind N 7 mph Wind

Race day high 56°F 13°C

Race day low 44°F 7°C

PR Score 97.49 Normal score 97.18

Course Score 97.49 Course-only Score

Course-adjusted pacing

Want to run your best Delaware Marathon?

Delaware Marathon Pace Bands are adjusted for the specific terrain of the course, your goal time, and pacing strategy.

Build your Delaware Marathon pace band

Easy to useCourse-aware pacing, goal-time based splits, and a cleaner race day plan.See all pace bands

April 6, 2025

Race day snapshot

Overcast

Start Line Conditions

Start Temp 48°F 9°C

Start Humidity 96% Humidity

Wind N 4 mph Wind

Race day high 54°F 12°C

Race day low 47°F 8°C

PR Score 97.39 Normal score 97.18

Course Score 97.49 Course-only Score

April 21, 2024

Race day snapshot

Clear

Start Line Conditions

Start Temp 45°F 7°C

Start Humidity 52% Humidity

Wind NNW 5 mph Wind

Race day high 54°F 12°C

Race day low 39°F 4°C

PR Score 97.49 Normal score 97.18

Course Score 97.49 Course-only Score

April 23, 2023

Race day snapshot

Clear

Start Line Conditions

Start Temp 56°F 13°C

Start Humidity 77% Humidity

Wind WNW 11 mph Wind

Race day high 65°F 18°C

Race day low 51°F 11°C

PR Score 97.06 Normal score 97.18

Course Score 97.49 Course-only Score

April 24, 2022

Race day snapshot

Drizzle

Start Line Conditions

Start Temp 53°F 12°C

Start Humidity 79% Humidity

Wind ENE 4 mph Wind

Race day high 71°F 22°C

Race day low 51°F 11°C

PR Score 96.80 Normal score 97.18

Course Score 97.49 Course-only Score

April 28, 2019

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 50°F 10°C

Start Humidity 49% Humidity

Wind SE 5 mph Wind

Race day high 64°F 18°C

Race day low 49°F 9°C

PR Score 97.44 Normal score 97.18

Course Score 97.44 Course-only Score

April 29, 2018

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 46°F 8°C

Start Humidity 63% Humidity

Wind WNW 7 mph Wind

Race day high 57°F 14°C

Race day low 46°F 8°C

PR Score 97.44 Normal score 97.18

Course Score 97.44 Course-only Score

May 14, 2017

Race day snapshot

Clear

Start Line Conditions

Start Temp 49°F 9°C

Start Humidity 91% Humidity

Wind NW 11 mph Wind

Race day high 67°F 19°C

Race day low 49°F 9°C

PR Score 97.44 Normal score 97.18

Course Score 97.44 Course-only Score

May 8, 2016

Race day snapshot

Mostly Cloudy

Start Line Conditions

Start Temp 54°F 12°C

Start Humidity 77% Humidity

Wind SW 5 mph Wind

Race day high 69°F 21°C

Race day low 48°F 9°C

PR Score 97.33 Normal score 97.18

Course Score 97.44 Course-only Score

May 10, 2015

Race day snapshot

Cloudy

Start Line Conditions

Start Temp 69°F 21°C

Start Humidity 87% Humidity

Wind S 3 mph Wind

Race day high 82°F 28°C

Race day low 65°F 18°C

PR Score 92.83 Normal score 97.18

Course Score 97.44 Course-only Score

May 11, 2014

Race day snapshot

Clear

Start Line Conditions

Start Temp 62°F 17°C

Start Humidity 78% Humidity

Wind NW 5 mph Wind

Race day high 77°F 25°C

Race day low 58°F 14°C

PR Score 95.69 Normal score 97.18

Course Score 97.44 Course-only Score

May 12, 2013

Race day snapshot

Partly Cloudy

Start Line Conditions

Start Temp 59°F 15°C

Start Humidity 67% Humidity

Wind NW 12 mph Wind

Race day high 67°F 19°C

Race day low 55°F 13°C

PR Score 96.87 Normal score 97.18

Course Score 97.44 Course-only Score