Climate averages 1991–2020
Chelmsford weather
in March.
A cool, fairly dry month: the 9th warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a cool month in Chelmsford: daytime highs average 9.9°C and nights cool to about 3.8°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 39 mm of rain on roughly 10 days, which makes March a fairly dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 50 min on an average March day.
The nearest other city in this atlas is Basildon (19 km away). In March its highs average 9.8°C, about as warm as Chelmsford, with 39 mm of rain.
Among the 143 cities listed in the United Kingdom, Chelmsford ranks joint 46th of 143 for the warmest March highs and joint 1st of 143 for the driest March (rainfall, lowest first). The mean March high of those 143 cities is 9.5°C; Chelmsford is 0.4°C warmer than that mean.
From March to April, average highs rise by 2.8°C to 12.7°C, and monthly rainfall rises from 39 mm to 46 mm.
The annual picture
March in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Chelmsford climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.2°C2.7°C | 2.7°C | 50 | 10.7 | 8.48 h |
| February | 7.6°C2.5°C | 2.5°C | 41 | 9.1 | 9.910 h |
| March, selected | 9.9°C3.8°C | 3.8°C | 39 | 10.0 | 11.812 h |
| April | 12.7°C5.6°C | 5.6°C | 46 | 10.8 | 13.814 h |
| May | 15.8°C8.6°C | 8.6°C | 51 | 9.8 | 15.616 h |
| June | 18.8°C11.6°C | 11.6°C | 53 | 9.9 | 16.617 h |
| July | 21.2°C13.8°C | 13.8°C | 53 | 10.8 | 16.216 h |
| August | 21.1°C13.9°C | 13.9°C | 59 | 9.9 | 14.615 h |
| September | 18.3°C11.8°C | 11.8°C | 46 | 8.8 | 12.713 h |
| October | 14.4°C9.0°C | 9.0°C | 55 | 10.5 | 10.711 h |
| November | 10.2°C5.5°C | 5.5°C | 55 | 10.4 | 8.99 h |
| December | 7.6°C3.3°C | 3.3°C | 54 | 10.5 | 7.98 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
March in nearby cities
- Basildon in MarchUnited Kingdom · 19 kmHigh 9.8°C · Low 4.1°C · 39 mm rain
- Harlow in MarchUnited Kingdom · 25 kmHigh 10.0°C · Low 3.1°C · 42 mm rain
- Southend-on-Sea in MarchUnited Kingdom · 28 kmHigh 9.6°C · Low 4.4°C · 46 mm rain
- Dagenham in MarchUnited Kingdom · 29 kmHigh 10.3°C · Low 3.8°C · 40 mm rain
- Grays in MarchUnited Kingdom · 31 kmHigh 10.2°C · Low 3.9°C · 40 mm rain
- Ilford in MarchUnited Kingdom · 34 kmHigh 10.3°C · Low 3.7°C · 41 mm rain
- Colchester in MarchUnited Kingdom · 34 kmHigh 9.5°C · Low 4.0°C · 43 mm rain
- Barking in MarchUnited Kingdom · 35 kmHigh 10.4°C · Low 3.7°C · 41 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Chelmsford) is explained once on the Chelmsford year overview and on the Sources, method and limits page.