Climate Data

Precipitation Reconstruction Land (PREC/L): 1948-present

Precipitation gauge measurements over land from the GHCN-v2 (Global Historical Climatology Network version 2) are interpolated onto 3 grids: at 0.5, 1 and 2.5 degree resolutions via optimal interpolation. Note: As of May, 2011 the GHCN version 3 station data set is available.

Key Strengths:

  • Land grid points are derived from high quality station gauge measurements.
  • Near real-time updates

Key Limitations:

  • Smaller gauge network than GPCC; no new stations added since GHCNv2 release ~1997

Years of Record

1948/01 to 2022/08
temporal metadataID:




Data Time Period Extended?

yes, data set is extended


Spatial Resolution

2.5 x 2.5, 1x1, 0.5 x 0.5

Ocean or Land

Land Only

Missing Data Flag

missing data present

Input Data

GHCN v2 gauge measurements

Earth system components and main variables

Data Access: Please Cite data sources, following the data providers' instructions.

Key Figures

Click the thumbnails to view larger sizes



Climate Data Guide Image: PREC/L February 2013 precipitation anomalies from 1971-2000 climatology.

Cite this page

National Center for Atmospheric Research Staff (Eds). Last modified 05 Sep 2022. "The Climate Data Guide: Precipitation Reconstruction Land (PREC/L): 1948-present." Retrieved from

Acknowledgement of any material taken from this page is appreciated. On behalf of experts who have contributed data, advice, and/or figures, please cite their work as well.