National Agroclimate Series of Derived Indicators (NASDI) - Difference from average precipitation

Difference from Average Precipitation represents the accumulated precipitation value for a location, subtracted by the long-term average value. A negative value indicates that the location has received less than the normal amount of precipitation (mm) for that timeframe. A positive value indicates that the location has received more than the normal amount of precipitation (mm).

Time periods calculated for difference from average precipitation are 1, 2, 3, 6, 9, 12, 18, 24 months.

Long-term average is 1991-2020. Each ISO week is numbered from 1 to 52 (sometimes 53) within a year. An ISO week starts on Monday and ends on Sunday.

The National Agroclimate Series of Derived Indicators (NASDI) products provide a collection of comprehensive and regularly updated datasets on key agroclimatic variables, including accumulated precipitation, standardized precipitation index, and difference from normal temperature, among others. These datasets incorporate both real-time and historical climate information, offering enhanced insight into conditions and trends across Canada’s diverse agricultural regions.

Simple

Date ( RI_367 )
2026-03-19
Date ( RI_366 )
2026-03-19
RI_414
  Government of Canada; Agriculture and Agri-Food Canada; Science and Technology Branch
Canada
https://agriculture.canada.ca/
RI_412
  Government of Canada; Agriculture and Agri-Food Canada; Science and Technology Branch
Canada
https://agriculture.canada.ca/
Presentation form
mapDigital;carteNumérique RI_391
Status
completed; complété RI_593
Maintenance and update frequency
asNeeded; auBesoin RI_540
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
  • Crops
  • Temperature
  • Farmlands
  • Agriculture
  • Precipitation
  • Drought
Use limitation
Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)
Access constraints
license; licence RI_606
Use constraints
license; licence RI_606
Spatial representation type
grid; grille RI_636
Metadata language
eng; CAN
Topic category
  • Climatology, meteorology, atmosphere
Begin date
2011-04-01
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Reference system identifier
http://www.epsg.org/ / EPSG:3857 / 8.3.4
Distribution format
  • TIFF ( 6.0 )

RI_414
  Government of Canada; Agriculture and Agri-Food Canada; Science and Technology Branch
Canada
https://agriculture.canada.ca/
OnLine resource
Difference from average precipitation ( ESRI REST: Image Service )

Web Service;ESRI REST;fra

OnLine resource
Difference from average precipitation ( ESRI REST: Image Service )

Web Service;ESRI REST;eng

OnLine resource
Data Product Specification (French) ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
Data Product Specification (English) ( HTTPS )

Supporting Document;PDF;eng

OnLine resource
Pre-packaged GeoTIF files (monthly) ( HTTPS )

Dataset;GeoTIF;zxx

OnLine resource
Pre-packaged GeoTIF files (weekly) ( HTTPS )

Dataset;GeoTIF;zxx

File identifier
e1807beb-19fe-4792-b030-824c7d820b95 XML
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Parent identifier
National Agroclimate Series of Derived Indicators (NASDI) 2b72996a-2905-4cea-a565-8bfb85cd42ac
Hierarchy level
series; série RI_623
Date stamp
2026-05-26T14:29:14
Metadata standard name
North American Profile of ISO 19115:2003 - Geographic information - Metadata
Metadata standard version
CAN/CGSB-171.100-2009
RI_414
  Government of Canada; Agriculture and Agri-Food Canada; Science and Technology Branch
Canada
http://www.agr.gc.ca
 
 

Overviews

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