Ground truth surface observations, everywhere.
High-frequency meteorological telemetry captured at the ground layer where people live, crops grow, and physical assets operate. Available as raw signed telemetry or enhanced, quality-scored datasets.
Raw Telemetry & Enhanced Data Products
WeatherXM offers two tiers of observation data: pure edge-signed raw streams for auditing and cryptographic provenance, and enhanced streams enriched with server-side quality scoring and spatial cross-validation.
Raw surface observations
Direct, unaltered sensor telemetry delivered with sub-minute latency. Each observation contains raw voltage readings, sensor counters, device timestamps, and cryptographic hardware signatures where supported.
Key Capabilities:
- ✓ 1-minute native sampling cadence
- ✓ Cryptographic edge device signatures
- ✓ Unfiltered physical sensor measurements
- ✓ Immutable historical data archives
Enhanced & qualified observations
Telemetry passed through WeatherXM's multi-stage Quality of Data (QoD) pipeline. Observations are filtered for sensor anomalies, validated against neighboring stations, and enriched with microclimate indices.
Key Capabilities:
- ✓ Algorithmic Quality of Data (QoD) scoring (0.0 to 1.0)
- ✓ Spatial peer validation and outlier rejection
- ✓ Derived bioclimatic indices (Dew Point, Heat Index, WBGT)
- ✓ Gap-filling and quality-flagged time series
Measured meteorological variables
Every WeatherXM station captures a comprehensive suite of atmospheric parameters at ground level.
Ambient Air (°C / °F)
±0.2°C accuracyHumidity (% RH)
±1.8% RH accuracyBarometric (hPa / inHg)
±0.5 hPa absoluteVelocity (m/s / mph)
1-minute peak gustAzimuth (0–360°)
16-point resolutionRain Rate & Total (mm)
0.1 mm tipping bucketSolar Radiation (W/m²)
Full spectrum pyranometerUV Index (0–16+)
UVA & UVB matchedHow to access ground observation telemetry
WeatherXM Pro API
Enterprise REST endpoints and WebSocket streams for real-time station feeds, historical data exports, and spatial bounding-box queries.
Explore WeatherXM Pro ↗Agentic x402 Endpoints
Pay-per-request HTTP 402 micro-payment endpoints designed for autonomous AI agents requiring instantaneous ground-truth weather verification.
View Agent API Specs ↗Decentralized archive downloads
Global historical observation archives hosted on Akave and decentralized storage for machine learning training and atmospheric research.
Download Datasets (Akave) ↗Build with WeatherXM Ground Observation Data
Start ingesting live observations, benchmark historical forecasts with FACT, or integrate WeatherXM into your autonomous agent workflows.