Expand Keokuk Lock Dam 19, US Keokuk Lock Dam 19, US Keokuk Lock Dam 19Change location Precipitation stripe Data sourcesLocation Warming anomaly — Heating score 4 Record high 1936 Recent observations View Loading… Climate stripe Add Chart all dataGrouping Year Year and month Month Day Axes Aggregation Grouping days Half-yearly Quarterly Monthly (28 days) Fortnightly Weekly Threshold (%) Override preset threshold Reset Download Loading… Change location