Daily Hourly PRISM Precipitation Dashboard

Date

Accumulation

Hourly series

Minimum hourly reports

Units

Station map metric

Scatter comparison

Station search

Coverage map

States

GeoLibre integrationThe package includes a portable GeoLibre project, full station-day GeoJSON, station inventory GeoJSON, and 30 native-resolution PRISM COGs. The dashboard map uses MapLibre GL when available and automatically falls back to its own SVG GIS layer if the mapping library cannot load.Download .geolibre Station-day GeoJSON COG catalog

GIS station comparison map · GeoLibre-ready

GIS loading…

Pairwise station comparison1:1 agreement line

Error through JuneMAE for all three pairings

PRISM gridded precipitation field

PRISM vs station dailydate-matched native cell samples
PRISM vs hourly-deriveddate-matched native cell samples

State MAE comparisondaily-hourly, daily-PRISM, hourly-PRISM

Residual distributionsthree pairwise errors

Select a station or table row

Map clicks, scatter clicks, and table rows are linked.

Matched station-day table with PRISM

Click a row for station details. Click a header to sort.

Method: Hourly `PP` reports are summed over the 24 hours ending at each daily report timestamp; UTC-calendar mode remains a diagnostic alternative. Single hourly values above 5.0 inches are retained in raw mode but excluded from the default QC series. PRISM station values are sampled from the native 30-arc-second cell containing the station coordinate; the PRISM field panel is downsampled by area averaging only for browser display. PRISM is date-matched to the daily grid and is not temporally realigned to each station's report time. PRISM may use gauge observations from related station networks, so PRISM comparisons are diagnostics, not independent validation. No source observation is overwritten or silently removed.