# USGS Statistics Service

**Canonical:** https://apis.io/apis/usgs-water/statistics-service/  
**Provider:** USGS Water Services — https://apis.io/providers/usgs-water/  
**Base URL:** https://waterservices.usgs.gov/nwis/stats/  
**Documentation:** https://waterservices.usgs.gov/docs/statistics/statistics-details/

USGS Statistics Service is one of 43 APIs that [USGS Water Services](https://apis.io/providers/usgs-water/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Statistics, Percentiles, Historical, Streamflow, and Approved Data. The published artifact set on APIs.io includes API documentation.

Retrieves daily, monthly, or annual statistics (mean, minimum, maximum, median, and percentiles P05–P95) computed from approved historical time-series data. Supports up to 10 sites per request and returns data in RDB tab-delimited format.

## Machine-readable artifacts (2)

- **Documentation** — https://waterservices.usgs.gov/docs/statistics/statistics-details/
- **Website** — https://waterservices.usgs.gov/

## Other USGS Water Services APIs (12)

- [USGS Instantaneous Values Service](https://apis.io/apis/usgs-water/instantaneous-values/)
- [USGS Daily Values Service](https://apis.io/apis/usgs-water/daily-values/)
- [USGS Site Service](https://apis.io/apis/usgs-water/site-service/)
- [USGS Groundwater Levels Service](https://apis.io/apis/usgs-water/groundwater-levels/)
- [Water Quality Portal (WQP) API](https://apis.io/apis/usgs-water/water-quality-portal/)
- [USGS Water Data Statistics API](https://apis.io/apis/usgs-water/statistics-next-gen/)
- [USGS Water Services agency-codes API](https://apis.io/apis/usgs-water/usgs-water-agency-codes-api/)
- [USGS Water Services altitude-datums API](https://apis.io/apis/usgs-water/usgs-water-altitude-datums-api/)
- [USGS Water Services aquifer-codes API](https://apis.io/apis/usgs-water/usgs-water-aquifer-codes-api/)
- [USGS Water Services aquifer-types API](https://apis.io/apis/usgs-water/usgs-water-aquifer-types-api/)
- [USGS Water Services channel-measurements API](https://apis.io/apis/usgs-water/usgs-water-channel-measurements-api/)
- [USGS Water Services citations API](https://apis.io/apis/usgs-water/usgs-water-citations-api/)

## Tags

Statistics, Percentiles, Historical, Streamflow, Approved Data

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/usgs-water/statistics-service/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/usgs-water/.