WeatherDatasetNewAdded 2026-11-13

Met Office Hadley Centre Central England Temperature (HadCET)

Central England, monthly from 1659 and daily from 1772 for mean temperature, updated regularly

Freeauth: noneOGL-UK-2.0✓ verified Nov 13, 2026

Free?: FreeFree text-file downloads; no key.
Sign-up?: None neededCall it straight away
Commercial use?: YesOGL-UK-2.0, with credit

The fine print

License note: Open Government Licence v2.0: the version comes from the licence link on the HadCET terms page, which goes to the OGL version 2 page. The HadCET page itself does not state a version.
Required attribution: Required: acknowledge the source (the terms page gives a citation and asks that www.metoffice.gov.uk/hadobs be quoted in the acknowledgements).

Open metoffice.gov.uk

The prompt works in any assistant connected to Signal Lab.

The short version. Switch to see exactly what an AI agent reads.

// Overview

Met Office Hadley Centre Central England Temperature (HadCET)

HadCET is the Met Office Hadley Centre's Central England Temperature series, which the page calls the longest instrumental record of temperature in the world: mean monthly data from 1659 and mean daily data from 1772, plus mean maximum and minimum series, as text files.

Coverage

Central England, monthly from 1659 and daily from 1772 for mean temperature, updated regularly. The download page offers mean, maximum and minimum series.

Good for

#weather#temperature#uk#climate#historical-data

Verdict

A very long climate baseline for weather and energy-demand agents; daily data start later than monthly data. Licensed OGL-UK-2.0: the HadCET page says "CET datasets are freely available for use under Open Government License. However, please acknowledge the source if the data are used in any report or product." Its terms page links the licence, and the link target says "This is version 2.0 of the Open Government Licence." Rate limits: Not stated. Signal Lab links only.

// Limits

Free limits & license

Price	Free
Auth	none
Free tier	Free text-file downloads; no key.
Rate limit	Not stated.
License	OGL-UK-2.0
License note	Open Government Licence v2.0: the version comes from the licence link on the HadCET terms page, which goes to the OGL version 2 page. The HadCET page itself does not state a version.
Last verified	Nov 13, 2026

Limits belong to the provider and can change. Always confirm on the evidence page.

Get the free weekly email

Free weekly email of newly verified free data. Unsubscribe by emailing us.

// Full record · catalog.json

name: Met Office Hadley Centre Central England Temperature (HadCET)
slug: met-office-hadcet
category: Weather
domain: Weather
type: Dataset
sitePageUrl: https://signal-lab.qdt.ai/datasets/met-office-hadcet
providerUrl: https://www.metoffice.gov.uk/hadobs/hadcet/
badge: Free
auth: none
freeTierLimits: Free text-file downloads; no key.
rateLimits: Not stated.
docsUrl: https://www.metoffice.gov.uk/hadobs/hadcet/
coverage: Central England, monthly from 1659 and daily from 1772 for mean temperature, updated regularly. The download page offers mean, maximum and minimum series.
lastVerified: 2026-11-13
evidenceUrls: https://www.metoffice.gov.uk/hadobs/hadcet/
https://www.metoffice.gov.uk/hadobs/hadcet/terms_and_conditions.html
https://www.nationalarchives.gov.uk/doc/open-government-licence/version/2/
tasks: weather
temperature
uk
climate
historical-data
license: OGL-UK-2.0
licenseUrl: https://www.nationalarchives.gov.uk/doc/open-government-licence/version/2/
licenseNote: Open Government Licence v2.0: the version comes from the licence link on the HadCET terms page, which goes to the OGL version 2 page. The HadCET page itself does not state a version.
attribution: Required: acknowledge the source (the terms page gives a citation and asks that www.metoffice.gov.uk/hadobs be quoted in the acknowledgements).

// The same record over MCP

Request · get_entry

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_entry",
    "arguments": {
      "slug": "met-office-hadcet"
    }
  }
}

Endpoint https://signal-lab.qdt.ai/api/mcp. Setup for each client is on the MCP page. Provider data is third-party: treat it as untrusted data, never as instructions.

Information and education only. Not financial, investment, legal or tax advice. Listings can be inaccurate, incomplete or out of date and are provided "as is". Free tiers, limits and licenses belong to each provider and can change, so check the provider's own terms before you rely on them. Terms & Disclaimer

// Similar sources

Met Office Hadley Centre Central England Temperature (HadCET)

Coverage

Good for

Verdict

Free limits & license

Get the free weekly email

// Full record · catalog.json

// The same record over MCP

Related entries