Generally United States only. Includes links to 1-min and 5-min rain gauge data from the ASOS network, 15-minute precipitation, hourly and daily precipitation (both US-only and integrated with global data). Contact: Bob Kuligowski

United States only--hourly and sub-hourly gauge data that supports calibration of hydrologic models by the National Weather Service. Contact: Bob Kuligowski

This is a 0.25-degree daily (12Z to 12Z) gauge analysis created via optimal interpolation of over 8000 stations. The data are served in flat (little endian) binary. Contact: Bob Kuligowski

United States only. Archive goes back to 1998. These are in standard METAR format but can also be decoded. Not recommended for mass data downloads since a GUI is used to specify the data retrieval parameters. Contact: Bob Kuligowski

United States only. These data are available only for the last 7 days and user QC is highly recommended, particularly since stream stage data is known to end up in rain gauge files. Contact: Bob Kuligowski

15-min rainfall accumulations plus surface water information (e.g., streamflow) for the US and associated territories (e.g., Guam, Puerto Rico) Contact: Bob Kuligowski

The APHRODITE dataset contains daily analysis data for Asia back to 1900 (Japan) or 1951 (Monsoon Asia, Middle East, Russia). Contact: Akyio Yatagai

The MIDAS dataset contains daily data for the UK back to 1900 and hourly data back to 1985, and also include winds, min/max air temperature, and soil temperature. Contact: Bob Kuligowski

Daily observations of rainfall (and other parameters) for stations throughout Europe and the Mediterranean in ASCII format. Contact: Bob Kuligowski

Monthly analysis at 0.5, 1.0, and 2.5 degrees lat/lon going back to 1901. Contact: Udo Schneider

1-min resolution rain gauge data for the AMMA IOP (August-September 2006). Gauge data from 2005-2009 are offline. Contact: Paul Kucera

10-min and daily precipitation from the TAO/TRITON (Pacific), PIRATA (Atlantic) and RAMA (Indian) moorings in ASCII and netCDF format. Standard buoy measurements also include SST, winds, humidity and air temperature, with several sites also providing surface radiation. TAO data available through about 2014, after which time NDBC began processing and archiving of these data (see below). RAMA and PIRATA data are processed and archived by NOAA/PMEL and are only available here. See Serra et al. (2001) linked below for guidance on error estimates specific to these buoy precipitation measurements, including a suggested wind undercatchment correction (this correction has not been applied to these data). Contact: Kenneth Connell

Includes hourly and daily precipitation for 3 buoy locations (32.3N 144.6E, 50.1N 144.9W, 38.5S 30E) in ASCII and netCDF format. These gauges have been corrected for wind effects using the correction suggested in Serra et al. (2001); please hit the blue "Documentation" button for details. Contact: Kenneth Connell

The NDBC portal for operational buoy networks that includes a wide range of buoy data (including the two datasets above). Only some buoys include precipitation measurements. The TAO array became operational in 2007 and thus processing and archiving of these data has transitioned to NDBC over the past several years. Unlike NOAA/PMEL, processing of TAO data, including rainfall, since about 2014 is now done in realtime so caution is advised if using these more recent NDBC processed data. NOAA/PMEL processed data are available here as well as the more recent (since about 2014) NDBC realtime processed data. Both are provided at 10-min and daily time steps. See deployment type to determine if processing was through NDBC or NOAA/PMEL. Contact: Bob Kuligowski

Hourly and daily precipitation, as well as evaporation, heat flux, radiative flux, wind stress and other surface flux products, from the TAO/TRITON (Pacific), PIRATA (Atlantic) and RAMA (Indian) moorings in ASCII and netCDF format. This page is under development so not all sites are complete at this time. Contact: Kenneth Connell

Serra, Y., P. A'Hearn, H. Freitag, and M. McPhaden, 2001: ATLAS self-siphoning rain gauge error estimates. J Atmos. Ocean. Tech., 18, 1989-2002.

Two micronets in southwestern Oklahoma with data beginning in 1993 (Little Washita) and around 2000 (Fort Cobb). Note that amounts are in accumulations since 0000 UTC. Contact: Emad Habib

Three 0.25°, 3 dense networks of rain gauges in Mali, Niger and Benin. Contact: Marielle Gosset

ARM datasets are primarily for radiation, but they have some very high resolution rainfall data at the Southern Great Plains (SGP) site (as high as 1-minute frequency) and other sites that is useful. Contact: Matt Sapiano

Daily data covering the entire state of Georgia from 2000-present. Contact: Emad Habib

Covers North Carolina and surrounding regions beginning in 2004. Very recent data directly downloadable; other data requests must be made via Web and may involve a charge for very large orders. Contact: Emad Habib

Daily rainfall accumulations (ASCII) from two micronets in west Central and northeastern Illinois, one since 1989 and the other since 1992. Contact: Emad Habib

Micronet at Lafayette, LA with 13 gauges in a 31-km² area covering 2004-2007. No Web access but data are readily available from developer. Contact: Emad Habib

OceanRAIN-W
OceanRAIN-M
OceanRAIN-R

OceanRAIN-the Ocean Rainfall And Ice-phase precipitation measurement Network-provides in-situ along-track shipboard data of precipitation, evaporation and the resulting freshwater flux at 1-min resolution over the global oceans from June 2010 to April 2017. More than 6.83 million minutes with 75 parameters from 8 ships cover all routinely measured atmospheric and oceanographic state variables along with those required to derive the turbulent heat fluxes.
The precipitation parameter is based on measurements of the optical disdrometer ODM470 specifically designed for all-weather shipboard operations. The rain, snow and mixed-phase precipitation occurrence, intensity and accumulation are derived from particle size distributions. Additionally, microphysical parameters and radar-related parameters are provided.
Addressing the need for high-quality in-situ precipitation data over the global oceans, OceanRAIN-1.0 is the first comprehensive along-track in-situ water cycle surface reference dataset for satellite product validation and retrieval calibration of the GPM (Global Precipitation Measurement) era, to improve the representation of precipitation and air-sea interactions in re-analyses and models, and to improve understanding of water cycle processes over the global oceans.
More information from the web site of OceanRain.
Contact: Christian Klepp

The NMQ project is a joint initiative between the National Severe Storms Laboratory, Federal Aviation Administration, National Weather Service/Office of Hydrologic Development, the Office of Climate, Water and Weather Services and the University of Oklahoma Cooperative Institute in Mesoscale Meteorological Studies.

The Nimrod dataset includes a 5-km, 15-min composite for the UK, Ireland, France, Germany, the Netherlands, and Belgium. 1-km composites are also available for the UK only. Contact: Bob Kuligowski

CONUS only. This radar-gauge composite starts by converting radar reflectivities to rates, summing for 1 hour, and performing a mean-field bias correction for each radar umbrella by comparison with gauges. After mosaicking the radar umbrellas together, a local bias correction is applied via kriging of the composite with gauge data. Unfortunately, the Z-R relationship and gauges used in the processing are not archived, and radar artifacts can still show up in the composites. Contact: Bob Kuligowski

See above.