Heat Related Illness Reporting Data
Daily counts of paramedic calls related to heat related illness in Hamilton.
This data also includes four key heat risk indicators: identification of heat warning days, daily minimum and maximum temperatures, and whether the Humidex reached 40 °C or higher. The dataset contains historical records from 2023 to the present year, covering the heat season from May through September.
This dataset is visualized on Hamilton Public Health’s Heat-Related Illness Dashboard. The Dashboard also includes daily counts of heat-related presentations to emergency department, made available to Hamilton Public Health through a data sharing agreement, which are not authorized for inclusion in this open dataset.
Field Name
Description
Date
Date of occurrence (M/DD/YYYY). All records represent information for a full day ending at midnight.
Heat Paramedic Calls
Number of heat-related illness paramedic calls that occurred in Hamilton. Sourced from Hamilton Paramedic Services, FirstWatch
Heat Warning Day
Flagged “Yes” if Hamilton’s Medical Officer of Health declared a heat warning for the City of Hamilton. A day is flagged if two or more consecutive days are forecasted with daytime highs greater than or equal to 31˚C and night-time lows greater than or equal to 20˚C or two or more consecutive days with a Humidex of 40˚C or greater.
Max Humidex
Flagged “Yes” if Hamilton’s Humidex reaches 40˚C or greater. Sourced from weatherstats.ca based on Environmental and Climate Change Canada data. Downloaded from: https://hamilton.weatherstats.ca/charts/temperature-daily.html
Max Temperature
Maximum daily temperature for Hamilton (multiple observation stations combined) in degrees Celsius (˚C). Sourced from weatherstats.ca based on Environmental and Climate Change Canada data. Downloaded from: https://hamilton.weatherstats.ca/charts/temperature-daily.html
Min Temperature
Minimum daily temperature (multiple observation stations combined) in degrees Celsius (˚C). Sourced from weatherstats.ca based on Environmental and Climate Change Canada data. Downloaded from: https://hamilton.weatherstats.ca/charts/temperature-daily.html
Datasets available for download
-
Heat Related Illness Reporting DataTable
Layer 0 via ArcGIS REST API
-
Heat Related Illness Reporting Data (Explore)HTML
Explore Heat Related Illness Reporting Data on ArcGIS Hub
Additional Info
| Field | Value |
|---|---|
| Last Updated | June 16, 2026, 19:33 (UTC) |
| Created | June 16, 2026, 19:33 (UTC) |
|
Domain / Topic
Domain or topic of the dataset being cataloged.
|
|
|
Title
Title for the Dataset.
|
Heat Related Illness Reporting Data |
|
Description
A description of the dataset.
|
Daily counts of paramedic calls related to heat related illness in Hamilton. This data also includes four key heat risk indicators: identification of heat warning days, daily minimum and maximum temperatures, and whether the Humidex reached 40 °C or higher. The dataset contains historical records from 2023 to the present year, covering the heat season from May through September. This dataset is visualized on Hamilton Public Health’s Heat-Related Illness Dashboard. The Dashboard also includes daily counts of heat-related presentations to emergency department, made available to Hamilton Public Health through a data sharing agreement, which are not authorized for inclusion in this open dataset. Field Name Description Date Date of occurrence (M/DD/YYYY). All records represent information for a full day ending at midnight. Heat Paramedic Calls Number of heat-related illness paramedic calls that occurred in Hamilton. Sourced from Hamilton Paramedic Services, FirstWatch Heat Warning Day Flagged “Yes” if Hamilton’s Medical Officer of Health declared a heat warning for the City of Hamilton. A day is flagged if two or more consecutive days are forecasted with daytime highs greater than or equal to 31˚C and night-time lows greater than or equal to 20˚C or two or more consecutive days with a Humidex of 40˚C or greater. Max Humidex Flagged “Yes” if Hamilton’s Humidex reaches 40˚C or greater. Sourced from weatherstats.ca based on Environmental and Climate Change Canada data. Downloaded from: https://hamilton.weatherstats.ca/charts/temperature-daily.html Max Temperature Maximum daily temperature for Hamilton (multiple observation stations combined) in degrees Celsius (˚C). Sourced from weatherstats.ca based on Environmental and Climate Change Canada data. Downloaded from: https://hamilton.weatherstats.ca/charts/temperature-daily.html Min Temperature Minimum daily temperature (multiple observation stations combined) in degrees Celsius (˚C). Sourced from weatherstats.ca based on Environmental and Climate Change Canada data. Downloaded from: https://hamilton.weatherstats.ca/charts/temperature-daily.html |
|
Tags / Keywords
Keywords/tags categorizing the dataset.
|
|
|
Format (CSV, XLS, TXT, PDF, etc)
File format of the dataset.
|
|
|
Dataset Size
Dataset size in megabytes.
|
64.0 |
|
Metadata Identifier
Metadata identifier – can be used as the unique identifier for catalogue entry
|
|
|
Published Date
Published date of the dataset.
|
2026-05-29 |
|
Time Period Data Span (start date)
Start date of the data in the dataset.
|
|
|
Time Period Data Span (end date)
End date of time data in the dataset.
|
|
|
GeoSpatial Area Data Span
A spatial region or named place the dataset covers.
|
| Field | Value |
|---|---|
|
Access category
Type of access granted for the dataset (open, closed, service, etc).
|
public |
|
License
License used to access the dataset.
|
License not specified |
|
Limits on use
Limits on use of data.
|
|
|
Location
Location of the dataset.
|
https://data-SpatialSolutions.opendata.arcgis.com/datasets/SpatialSolutions::heat-related-illness-reporting-data |
|
Data Service
Data service for accessing a dataset.
|
|
|
Owner
Owner of the dataset.
|
OpenHamilton |
|
Contact Point
Who to contact regarding access?
|
City of Hamilton |
|
Contact Point Email
The email to contact regarding access?
|
[email protected] |
|
Publisher
Publisher of the dataset.
|
City of Hamilton |
|
Publisher Email
Email of the publisher.
|
|
|
Author
Author of the dataset.
|
OpenHamilton |
|
Author Email
Email of the author.
|
|
|
Accessed At
Date the data and metadata was accessed.
|
2026-05-29 |
| Field | Value |
|---|---|
|
Identifier
Unique identifier for the dataset.
|
65799be5bcb742aba177b7c573f3ae08 |
|
Language
Language(s) of the dataset
|
English |
|
Link to dataset description
A URL to an external document describing the dataset.
|
https://data-SpatialSolutions.opendata.arcgis.com/datasets/SpatialSolutions::heat-related-illness-reporting-data |
|
Persistent Identifier
Data is identified by a persistent identifier.
|
|
|
Globally Unique Identifier
Data is identified by a persistent and globally unique identifier.
|
|
|
Contains data about individuals
Does the data hold data about individuals?
|
|
|
Contains data about identifiable individuals
Does the data hold identifiable data about individual?
|
|
|
Contains Indigenous Data
Does the data hold data about Indigenous communities?
|
|
|
Portal Type
Platform type of the source portal.
|
| Field | Value |
|---|---|
|
Version
Version of the datatset
|
None |
|
Source
Source of the dataset.
|
None |
|
Version notes
Version notes about the dataset.
|
|
|
Is version of another dataset
Link to dataset that it is a version of.
|
|
|
Other versions
Link to datasets that are versions of it.
|
|
|
Provenance Text
Provenance Text of the data.
|
City of Hamilton |
|
Provenance URL
Provenance URL of the data.
|
|
|
Temporal resolution
Describes how granular the date/time data in the dataset is.
|
|
|
GeoSpatial resolution in meters
Describes how granular (in meters) geospatial data is in the dataset.
|
|
|
GeoSpatial resolution (in regions)
Describes how granular (in regions) geospatial data is in the dataset.
|
| Field | Value |
|---|---|
|
Indigenous Community Permission
Who holds the Indigenous Community Permission. Who to contact regarding access to a dataset that has data about Indigenous communities.
|
|
|
Community Permission
Community permission (who gave permission).
|
|
|
The Indigenous communities the dataset is about
Indigenous communities from which data is derived.
|
| Field | Value |
|---|---|
|
Number of data rows
If tabular dataset, total number of rows.
|
517 |
|
Number of data columns
If tabular dataset, total number of unique columns.
|
13 |
|
Number of data cells
If tabular dataset, total number of cells with data.
|
6721 |
|
Number of data relations
If RDF dataset, total number of triples.
|
|
|
Number of entities
If RDF dataset, total number of entities.
|
|
|
Number of data properties
If RDF dataset, total number of unique properties used by the triples.
|
|
|
Data quality
Describes the quality of the data in the dataset.
|
|
|
Metric for data quality
A metric used to measure the quality of the data, such as missing values or invalid formats.
|
0 Comments