cropgrowdays: Crop Growing Degree Days and Agrometeorological Calculations

Calculate agrometeorological variables for crops including growing degree days (McMaster, GS & Wilhelm, WW (1997) <doi:10.1016/S0168-1923(97)00027-0>), cumulative rainfall, number of stress days and cumulative or mean radiation and evaporation. Convert dates to day of year and vice versa. Also, download curated and interpolated Australian weather data from the Queensland Government DES longpaddock website <>. This data is freely available under the Creative Commons 4.0 licence.

Version: 0.2.1
Depends: R (≥ 4.2.0)
Imports: lubridate, dplyr, tibble, purrr, purrrlyr, httr
Suggests: rmarkdown, knitr, furrr, testthat (≥ 3.0.0)
Published: 2024-03-12
DOI: 10.32614/CRAN.package.cropgrowdays
Author: Peter Baker ORCID iD [aut, cre], Miranda Mortlock ORCID iD [aut]
Maintainer: Peter Baker <drpetebaker at>
License: MIT + file LICENSE
NeedsCompilation: no
Materials: README NEWS
In views: Agriculture
CRAN checks: cropgrowdays results


Reference manual: cropgrowdays.pdf
Vignettes: Calculating Agrometeorological Variables for Crops
Obtaining Historical Weather Data from Qld Government DES Website


Package source: cropgrowdays_0.2.1.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
macOS binaries: r-release (arm64): cropgrowdays_0.2.1.tgz, r-oldrel (arm64): cropgrowdays_0.2.1.tgz, r-release (x86_64): cropgrowdays_0.2.1.tgz, r-oldrel (x86_64): cropgrowdays_0.2.1.tgz
Old sources: cropgrowdays archive


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