Environment Agency Potential Evapotranspiration Dataset

Potential Evapotranspiration (PET) is the amount of evaporation which would occur if there was an unlimited supply of water. This dataset represents Potential Evapotranspiration for well watered grass and is available either with an Interception element (PETI) or without one (PET). The dataset has been calculated from homogenised climate station data, gridded to a 1km grid. The dataset starts in 1961, is available on a water day (09:00 to 09:00 on the following day) timestep and is updated frequently. Attribution statement: © Environment Agency copyright and/or database right 2024. All rights reserved.

Data and Resources

PETI_1961-1965.zipZIP

PETI_1961-1965.zip download on Defra Data Services Platform
PETI_1966-1970.zipZIP

PETI_1966-1970.zip download on Defra Data Services Platform
PETI_1971-1975.zipZIP

PETI_1971-1975.zip download on Defra Data Services Platform
PETI_1976-1980.zipZIP

PETI_1976-1980.zip download on Defra Data Services Platform
PETI_1981-1985.zipZIP

PETI_1981-1985.zip download on Defra Data Services Platform
PETI_1986-1990.zipZIP

PETI_1986-1990.zip download on Defra Data Services Platform
PETI_1991-1995.zipZIP

PETI_1991-1995.zip download on Defra Data Services Platform
PETI_1996-2000.zipZIP

PETI_1996-2000.zip download on Defra Data Services Platform
PETI_2001-2005.zipZIP

PETI_2001-2005.zip download on Defra Data Services Platform
PETI_2006-2010.zipZIP

PETI_2006-2010.zip download on Defra Data Services Platform
PETI_2011-2015.zipZIP

PETI_2011-2015.zip download on Defra Data Services Platform
PETI_2016-2020.zipZIP

PETI_2016-2020.zip download on Defra Data Services Platform
PETI_2021.zipZIP

PETI_2021.zip download on Defra Data Services Platform
PETI_2022.zipZIP

PETI_2022.zip download on Defra Data Services Platform
PETI_2023.zipZIP

PETI_2023.zip download on Defra Data Services Platform
PETI_2024.zipZIP

PETI_2024.zip download on Defra Data Services Platform
PETI_2025.zipZIP

PETI_2025.zip download on Defra Data Services Platform
PET_1961-1965.zipZIP

PET_1961-1965.zip download on Defra Data Services Platform
PET_1966-1970.zipZIP

PET_1966-1970.zip download on Defra Data Services Platform
PET_1971-1975.zipZIP

PET_1971-1975.zip download on Defra Data Services Platform
PET_1976-1980.zipZIP

PET_1976-1980.zip download on Defra Data Services Platform
PET_1981-1985.zipZIP

PET_1981-1985.zip download on Defra Data Services Platform
PET_1986-1990.zipZIP

PET_1986-1990.zip download on Defra Data Services Platform
PET_1991-1995.zipZIP

PET_1991-1995.zip download on Defra Data Services Platform
PET_1996-2000.zipZIP

PET_1996-2000.zip download on Defra Data Services Platform
PET_2001-2005.zipZIP

PET_2001-2005.zip download on Defra Data Services Platform
PET_2006-2010.zipZIP

PET_2006-2010.zip download on Defra Data Services Platform
PET_2011-2015.zipZIP

PET_2011-2015.zip download on Defra Data Services Platform
PET_2016-2020.zipZIP

PET_2016-2020.zip download on Defra Data Services Platform
PET_2021.zipZIP

PET_2021.zip download on Defra Data Services Platform
PET_2022.zipZIP

PET_2022.zip download on Defra Data Services Platform
PET_2023.zipZIP

PET_2023.zip download on Defra Data Services Platform
PET_2024.zipZIP

PET_2024.zip download on Defra Data Services Platform
PET_2025.zipZIP

PET_2025.zip download on Defra Data Services Platform
Potential_Evapotranspiration_Dataset_Documentation_v1.pdfPDF

Potential_Evapotranspiration_Dataset_Documentation_v1.pdf download on Defra...

Additional Info

Field	Value
Last Updated	October 3, 2025, 13:12 (UTC)
Created	November 5, 2021, 15:05 (UTC)