ESSDD Earth System Science Data Discussions ESSDD Earth Syst. Sci. Data Discuss. 1866-3591 Göttingen, Germany 10.5194/essd-2026-183 Weather station data from the Mount Everest region, Nepal: 3,810-8,810 m above sea level Khadka Arbindra 1 2 Perry L. Baker 3 4 Matthews Tom 5 Sherpa Tenzing Gyalzen 6 Shrestha Chitra Bahadur 1 Shrestha Dibas 1 Aryal Deepak 1 Tuladhar Subash 7 Pradhananga Niraj 7 Kayastha Dinkar 7 Raichle Brian https://orcid.org/0000-0001-9149-6715 4 Athans Peter 8 Sherpa Dawa Yangzum 8 Garrett Keith 9 Wheeler Garrett 10 Young Tom 11 Elmore Aurora 12 Central Department of Hydrology and Meteorology, Tribhuvan University, Kirtipur, Nepal Université Grenoble Alpes, CNRS, IRD, IGE, Grenoble, France Department of Geography (Climatology), University of Nevada, Reno, Nevada, USA Research Institute for Environment, Energy, and Economics, Department of Sustainable Technology & the Built Environment, Appalachian State University, Boone, North Carolina Department of Geography, King’s College London, London, UK Khumbu Climbing Centre, Phortse, Nepal Department of Hydrology and Meteorology, Nepal The North Face, Alameda, California Mount Washington Observatory, North Conway, New Hampshire, USA Campbell Scientific, Logan, Utah, USA RM Young, Traverse City, Michigan, USA National Oceanic and Atmospheric Administration, Maryland, USA 23 04 2026 2026 1 17 Copyright: © 2026 Arbindra Khadka et al. 2026 This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/ This article is available from https://essd.copernicus.org/preprints/essd-2026-183/ The full text article is available as a PDF file from https://essd.copernicus.org/preprints/essd-2026-183/essd-2026-183.pdf

The National Geographic Rolex Perpetual Planet Everest expeditions 2019–2022 installed a network of Automatic Weather Stations (AWSs) to improve understanding of the climate at high altitudes in the Nepal Himalaya. This knowledge is critical in the Mount Everest (Khumbu) region, due to its extreme altitude, popularity amongst trekkers and mountaineers, and its importance as a source of freshwater for downstream communities. Here we present quality controlled (QC) meteorological data from six AWSs from Phortse (3,810 m above sea level, m asl) to Bishop Rock (8,810 m asl) in the Everest region, including the seasonal climatology, and a comparison with ERA5 reanalysis data from the South Col AWS. The data is accessible from https://doi.org/10.5281/zenodo.18849098.