Temperature & Rainfall Trends

Note: Trends are based on data recorded at Chelmsford Weather Station since 2013.

Annual Temperature Trend
Month Average since 2013 Current Month Difference
January 4.8°C 4.3°C (2025) -0.5°C0.5°C Colder than All-Time Average Temperature.
February 6.2°C 5.3°C (2025) -0.9°C0.9°C Colder than All-Time Average Temperature.
March 7.5°C 7.8°C (2025) 0.3°C0.3°C Warmer than All-Time Average Temperature.
April 9.9°C 11.0°C (2025) 1.1°C1.1°C Warmer than All-Time Average Temperature.
May 13.5°C 14.0°C (2025) 0.5°C0.5°C Warmer than All-Time Average Temperature.
June 17.3°C 18.8°C (2025) 1.5°C1.5°C Warmer than All-Time Average Temperature.
July 18.9°C 19.6°C (2025) 0.7°C0.7°C Warmer than All-Time Average Temperature.
August 18.4°C 18.7°C (2025) 0.3°C0.3°C Warmer than All-Time Average Temperature.
September 15.8°C 15.0°C (2025) -0.8°C0.8°C Colder than All-Time Average Temperature.
October 12.1°C 14.7°C (2025) 2.6°C2.6°C Warmer than All-Time Average Temperature.
November 7.7°C 13.2°C (2025) 5.5°C5.5°C Warmer than All-Time Average Temperature.
December 6.1°C 7.5°C (2024) 1.4°C1.4°C Warmer than All-Time Average Temperature.
Average 12 Month Temperature since 2013: 11.5°C
Current 12 Month Temperature: 12.1°C
Current 12 Month Temperature Trend: 0.6°C0.6°C Warmer than All-Time Average Temperature.

Annual Rainfall Trend
Month Average since 2013 Current Month Difference
January 34.8 mm 57.6 mm (2025) 22.80 mm22.8 mm more than All-Time Average Rainfall.
February 30.2 mm 46.2 mm (2025) 16.00 mm16 mm more than All-Time Average Rainfall.
March 40.3 mm 1.3 mm (2025) -39.00 mm39 mm Colder than All-Time Average Temperature.
April 21.9 mm 31.8 mm (2025) 9.90 mm9.9 mm more than All-Time Average Rainfall.
May 35.4 mm 20.7 mm (2025) -14.70 mm14.7 mm less than All-Time Average Rainfall.
June 32.7 mm 27.7 mm (2025) -5.00 mm5 mm less than All-Time Average Rainfall.
July 34.9 mm 32.0 mm (2025) -2.90 mm2.9 mm less than All-Time Average Rainfall.
August 35.2 mm 5.8 mm (2025) -29.40 mm29.4 mm less than All-Time Average Rainfall.
September 34.8 mm 32.9 mm (2025) -1.90 mm1.9 mm less than All-Time Average Rainfall.
October 52.2 mm 62.2 mm (2025) 10.00 mm10 mm more than All-Time Average Rainfall.
November 47.4 mm 7.2 mm (2025) -40.20 mm40.2 mm less than All-Time Average Rainfall.
December 52.0 mm 32.2 mm (2024) -19.80 mm19.8 mm less than All-Time Average Rainfall.
Average 12 Month Rainfall since 2013: 451.80 mm
Rainfall for last 12 months: 399.90 mm
Current 12 Month Rainfall difference: -51.90 mm51.9 mm less than All-Time Average Rainfall.
This data is reflective of 12 month trending at the Chelmsford Weather Station Weather Station location. This is not official scientific data. The weather data presented here is based on data collected since 2013. Script courtesy of  Michael Holden from Relay Weather. Script calculations courtesy of Murry Conarroe of Wildwood Weather.