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Race Overview
The Chelmsford Marathon is a single-lap road race that starts and finishes in Central Park, Chelmsford, Essex, running through the park's tree-lined avenues and out into the surrounding Essex countryside. A half marathon runs an out-and-back course on the same morning, starting half an hour after the marathon's 9:00 AM gun. The race has run each October since at least 2016 and raises funds for Little Havens Children's Hospice.
WikipediaFAQ
When is the 2027 Chelmsford Marathon?
The 2027 Chelmsford Marathon will be held on Sunday October 10, 2027.
Is the Chelmsford Marathon a Boston Marathon Qualfier?
Yes, the Chelmsford Marathon is an official Boston Marathon qualifier.
What is the time limit for the Chelmsford Marathon?
The time limit for the Chelmsford Marathon is 6 hours.
Chelmsford Marathon Course Map
Loading Course Map...
Chelmsford Marathon Weather History
Chelmsford Marathon Weather Averages
Average Temp: 53°, Average Low: 48°, Average High: 60°
| Time | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|
| Temp | 52° | 54° | 55° | 57° | 58° | 58° | 58° |
| Feel | 51° | 53° | 55° | 56° | 57° | 58° | 58° |
| Rain | - | - | - | - | - | - | - |
| Wind | 8mph | 10mph | 10mph | 11mph | 11mph | 11mph | 11mph |
| Dew | 49° | 50° | 49° | 49° | 49° | 48° | 48° |
| RunScore |  | | | |  | | |
Chelmsford Marathon 2026
Oct 11, 2026
Partly cloudy throughout the day.
Low: 46°, High: 60°
| Time | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|
| Temp |  48° | 52° | 54° | 57° | 59° | 58° | 60° |
| Feel | 45° | 52° | 54° | 57° | 59° | 58° | 60° |
| Rain | - | - | - | - | - | - | - |
| Wind | 8mph | 9mph | 9mph | 9mph | 8mph | 6mph | 7mph |
| Dew | 44° | 44° | 42° | 40° | 40° | 40° | 40° |
| RunScore | |  | | | | | |
Chelmsford Marathon 2025
Oct 12, 2025
Partly cloudy throughout the day.
Low: 41°, High: 60°
| Time | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|
| Temp | 50° | 52° | 53° | 54° | 56° | 58° | 60° |
| Feel | 49° | 52° | 53° | 54° | 56° | 58° | 60° |
| Rain | - | - | - | - | - | - | - |
| Wind | 3mph | 3mph | 5mph | 5mph | 6mph | 5mph | 6mph |
| Dew | 48° | 48° | 48° | 47° | 48° | 49° | 48° |
| RunScore | | | | | | | |
Chelmsford Marathon 2024
Oct 13, 2024
Partly cloudy throughout the day.
Low: 41°, High: 50°
| Time | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|
| Temp |  44° | 45° | 46° | 48° | 50° | 50° | 50° |
| Feel | 38° | 40° | 43° | 44° | 48° | 50° | 50° |
| Rain | - | - | - | - | - | - | - |
| Wind | 9mph | 8mph | 7mph | 8mph | 5mph | 5mph | 4mph |
| Dew | 38° | 38° | 38° | 38° | 38° | 36° | 35° |
| RunScore | | | | | | | |
Chelmsford Marathon 2023
Oct 15, 2023
Clear conditions throughout the day.
Low: 37°, High: 50°
| Time | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|
| Temp | 41° | 43° | 45° | 47° | 48° | 49° | 49° |
| Feel | 35° | 38° | 41° | 43° | 44° | 44° | 45° |
| Rain | - | - | - | - | - | - | - |
| Wind | 8mph | 9mph | 9mph | 10mph | 9mph | 10mph | 9mph |
| Dew | 37° | 36° | 35° | 33° | 32° | 32° | 31° |
| RunScore | | | | | | | |
Chelmsford Marathon 2022
Oct 16, 2022
Partly cloudy throughout the day with late afternoon rain.
Low: 50°, High: 60°, Light Rain
| Time | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|
| Temp | 52° | 55° | 57° | 59° | 60° | 60° | 60° |
| Feel | 52° | 55° | 57° | 59° | 60° | 60° | 60° |
| Rain | - | - | - | - | - | - | - |
| Wind | 8mph | 10mph | 11mph | 8mph | 8mph | 7mph | 6mph |
| Dew | 46° | 46° | 47° | 46° | 46° | 46° | 47° |
| RunScore | | | | | | | |
Chelmsford Marathon 2021
Oct 17, 2021
Partly cloudy throughout the day.
Low: 50°, High: 60°, Light Rain
| Time | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|
| Temp | 53° | 54° | 55° | 57° | 58° | 59° | 60° |
| Feel | 53° | 54° | 55° | 57° | 58° | 59° | 60° |
| Rain | - | - | - | - | light | - | - |
| Wind | 8mph | 6mph | 8mph | 8mph | 10mph | 11mph | 13mph |
| Dew | 51° | 52° | 53° | 53° | 53° | 53° | 51° |
| RunScore | | | | | | | |
Chelmsford Marathon 2019
Oct 13, 2019
Partly cloudy throughout the day with a chance of rain throughout the day.
Low: 51°, High: 62°, Moderate Rain
| Time | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|
| Temp | 57° | 59° | 61° | 62° |  62° | 61° | 60° |
| Feel | 57° | 59° | 61° | 62° | 62° | 61° | 60° |
| Rain | - | - | - | - | light | - | - |
| Wind | 9mph | 11mph | 12mph | 16mph | 19mph | 22mph | 20mph |
| Dew | 57° | 58° | 58° | 58° | 58° | 57° | 55° |
| RunScore | | | | |  |  | |
Chelmsford Marathon 2018
Oct 14, 2018
Partly cloudy throughout the day with rain.
Low: 50°, High: 64°, Light Rain
| Time | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|
| Temp | 58° | 58° | 57° | 58° | 57° | 56° | 54° |
| Feel | 58° | 58° | 57° | 58° | 57° | 56° | 54° |
| Rain | - | - | - | - | light | - | - |
| Wind | 5mph | 8mph | 8mph | 10mph | 12mph | 10mph | 12mph |
| Dew | 55° | 55° | 55° | 55° | 54° | 54° | 53° |
| RunScore | | | | | | | |
Chelmsford Marathon 2017
Oct 15, 2017
Partly cloudy throughout the day.
Low: 51°, High: 67°, Light Rain
| Time | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|
| Temp | 57° | 60° | 62° | 63° | 64° | 67° | 67° |
| Feel | 57° | 60° | 62° | 63° | 64° | 67° | 67° |
| Rain | - | - | - | - | light | - | - |
| Wind | 7mph | 10mph | 16mph | 15mph | 15mph | 15mph | 15mph |
| Dew | 56° | 59° | 58° | 58° | 57° | 57° | 57° |
| RunScore | | | | | | | |
Chelmsford Marathon 2016
Oct 16, 2016
Partly cloudy throughout the day with rain.
Low: 48°, High: 61°, Moderate Rain
| Time | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|
| Temp | 54° | 55° | 57° | 59° | 61° | 61° | 61° |
| Feel | 54° | 55° | 57° | 59° | 61° | 61° | 61° |
| Rain | - | - | - | - | moderate | - | - |
| Wind | 14mph | 19mph | 16mph | 14mph | 14mph | 14mph | 13mph |
| Dew | 53° | 53° | 54° | 54° | 54° | 54° | 53° |
| RunScore | | | | | | | |
Chelmsford Marathon 2015
Oct 18, 2015
Partly cloudy throughout the day.
Low: 49°, High: 56°, Light Rain
| Time | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|
| Temp | 50° | 52° | 53° | 54° | 55° | 55° | 56° |
| Feel | 50° | 52° | 53° | 54° | 55° | 55° | 56° |
| Rain | - | - | - | - | - | - | - |
| Wind | 6mph | 6mph | 6mph | 8mph | 8mph | 8mph | 6mph |
| Dew | 50° | 49° | 49° | 49° | 49° | 50° | 50° |
| RunScore | | | | | | | |
Chelmsford Marathon 2014
Oct 19, 2014
Partly cloudy throughout the day with rain in the morning and afternoon.
Low: 57°, High: 65°, Moderate Rain
| Time | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM |
|---|---|---|---|---|---|---|---|
| Temp | 61° | 61° | 62° | 63° | 64° | 65° | 65° |
| Feel | 61° | 61° | 62° | 63° | 64° | 65° | 65° |
| Rain | - | - | - | - | light | - | - |
| Wind | 14mph | 16mph | 16mph | 17mph | 19mph | 21mph | 17mph |
| Dew | 58° | 58° | 56° | 56° | 54° | 53° | 54° |
| RunScore | | | | | | | |