Chelmsford weather
UK towns · Essex, England · 51.74°N 0.47°E
Chelmsford, in Essex, England, has its warmest weather in August, when daytime temperatures average 22.6°C, while January nights are the coldest at around 2.1°C. The town sees roughly 748mm of rain a year; October is normally the wettest month and April the driest. Figures are averaged from 2020–2024 observations.
Climate averages
| Month | Avg high | Avg low | Rain | Rain days |
|---|---|---|---|---|
| Jan | 7.6° | 2.1° | 60mm | 12 |
| Feb | 9.6° | 3.6° | 61mm | 11 |
| Mar | 10.7° | 4° | 61mm | 12 |
| Apr | 13° | 4.7° | 44mm | 9 |
| May | 16.8° | 8.3° | 55mm | 13 |
| Jun | 20.5° | 11.6° | 59mm | 9 |
| Jul | 22° | 13.6° | 64mm | 13 |
| Aug | 22.6° | 14.1° | 52mm | 8 |
| Sep | 20.1° | 12.1° | 56mm | 10 |
| Oct | 15.6° | 9.2° | 100mm | 16 |
| Nov | 11° | 5.5° | 67mm | 10 |
| Dec | 8.4° | 3.8° | 69mm | 12 |
Chelmsford weather FAQs
What is the warmest month in Chelmsford?
August is typically the warmest month in Chelmsford, with average daytime highs of 22.6°C. Summer afternoons (June–August) average around 21.7°C.
What is the wettest month in Chelmsford?
October is usually the wettest month, with around 100mm of rain over roughly 16 rainy days. April is typically the driest (44mm).
How much does it rain in Chelmsford per year?
Chelmsford receives roughly 748mm of precipitation per year, spread over about 135 days with at least 1mm of rain (based on 2020–2024 observations).
How cold are winters in Chelmsford?
Winter nights (December–February) in Chelmsford average around 3.2°C, with January typically the coldest month (average low 2.1°C).