e-RA: the electronic Rothamsted Archive

Rothamsted Meteorological Open Access Data

Mean monthly temperature at Rothamsted October 1985 - September 2017

Download the Data

This dataset is presented as a downloadable Excel Spreadsheet:


Publication Date

Publication date V1. 2020/03/11

Access Use and Conditions

Creative Commons License This work is licensed under a Creative Commons Attribution 4.0 International License.

YOU MUST CITE AS: Rothamsted Research (2020). Rothamsted mean monthly temperature October 1985 - September 2017. Electronic Rothamsted Archive https://doi.org/10.23637/rmsMMTemp10850917

Rothamsted relies on the integrity of users to ensure that Rothamsted Research receives suitable acknowledgement as being the originators of these data. This enables us to monitor the use of each dataset and to demonstrate their value. Please send us a link to any publication that uses this Rothamsted data.


This data set represents the mean monthly temperature at Rothamsted from October 1985 - September 2017 and is based on continuous daily records measured at the site. The mean annual temperature for the period of study was 10.03°C and the mean annual total precipitation was 746.3mm.


This dataset was compiled for the publication J. Macholdt, H.-P. Piepho, B. Honermeier, S. Perryman, A. Macdonald and P. Poulton. The effects of cropping sequence, fertilisation and straw management on the yield stability of winter wheat (1986-2017) in the Broadbalk Wheat Experiment, Rothamsted, UK. (2020). Journal of Agricultural Science.

This publication also includes reference to the accompanying dataset Mean monthly rainfall at Rothamsted October 1985 - September 2017.


The mean daily temperature is measured over a 24 hour period 0900 to 0900 GMT and calculated from the daily maximum (Tmax) and minimum temperatures (Tmin); the mean daily temperature = (Tmax = Tmin)/2. The temperature is recorded at 1.5 m height above the ground surface within a naturally aspirating temperature screen (Stevenson screen). Temperature was first recorded in 1878, Tmax was then measured using a mercury column thermometer and Tmin using a spirit-in-glass with indicator bar minimum thermometer. Data were collected daily manually until 2004 using a standard protocol. Since 2004, temperatures have been recorded automatically by Automatic Weather Station thermistors (electronic temperature probes, Campbell Scientific, Type 107). See Temperature for further information.


Rothamsted Meteorological Station, Harpenden, Hertfordshire, England 51.82 N 0.37 W 128 m asl.

Provenance & Quality

The monthly summary data contained in this spreadsheet are derived from daily data measured at Rothamsted Meteorological Station, Harpenden. Total monthly data is determined from daily data using Genstat 19th Edition. Verification includes checks for instrument errors, for missing data and outliers. Missing values are acquired form the UK Met Office Station on site. The original raw daily data is available, after registering, from the e-RA database. Please contact the e-RA Curators for an access password and further details.


Meteorological station
Weather data
Air temperature
Climate change


Sarah Perryman, Margaret Glendining, Tony Scott, Chris Hall.


Rothamsted Research.

Further information and contact details

For further information about the measurement of rain and precipitation at Rothamsted see Temperature.

Please contact the e-RA Curators for further information, and assistance with questions about the data or its interpretation:

e-RA Curators,
Department of Computational and Analytical Sciences (CAS)
Rothamsted Research
Harpenden, Herts, AL5 2JQ

email: era@rothamsted.ac.uk


The Long-term Experiments and weather stations are supported by the Lawes Agricultural Trust and BBSRC National Capability Funding (BBS/E/C/000J0300) recognising the national and international importance of the data.

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