Trends of temperature change based on adjusted and homogenized climate station data

Monthly, seasonal and annual trends of daily minimum, mean and maximum surface air temperature change (degrees Celsius) based on homogenized station data (AHCCD) are available. Trends are calculated using the Theil-Sen method using the station’s full period of available data. The availability of temperature trends will vary by station; if more than 5 consecutive years are missing data or more than 10% of the data within the time series is missing, a trend was not calculated.

Data and Resources

Additional Info

Field	Value
Last Updated	April 17, 2026, 20:58 (UTC)
Created	April 17, 2026, 20:58 (UTC)
contact_email	ec.ccds.info-info.dscc.ec@canada.ca
contact_person	{"en": "Government of Canada; Environment and Climate Change Canada,1-800-668-6767,ec.enviroinfo.ec@canada.ca", "fr": "Gouvernement du Canada; Environnement et Changement climatique Canada,ec.enviroinfo.ec@canada.ca"}
criticality_level	[]
data_dictionary	["climatology_meterology_atmosphere"]
geographic_scope	[]
open_canada_collection	fgp
open_canada_date_published	2018-09-06 00:00:00
open_canada_keywords	{"en": ["temperature; adjusted; homogenized; climate; climate change; trend; anomaly", "Climate", "Climate change", "Weather and Climate", "Provide Climate Information Products and Services", "Expand Scientific Knowledge for Climate Monitoring and Prediction", "National (CA)", "Science and Technology Branch", "Atmospheric Science and Technology", "Unclassified"], "fr": ["température; ajustées; homogénéisées; climat; changement climatique; tendance; anomalie", "Climat", "Changement climatique", "Temps et climat", "Fournir des services et des produits d'information sur le climat", "Approfondir les connaissances scientifiques et formuler de nouvelles méthodes de recherche le climat et le changement climatique", "National (CA)", "Direction générale des sciences et de la technologie", "Sciences et technologie atmosphériques", "Non Classifié"]}
open_canada_subject	["nature_and_environment", "science_and_technology"]
sensitivity_level	unrestricted
title_fr	Tendances des changements de température basées sur les données ajustées et homogénéisées des stations climatologiques
update_frequency	as_needed