Expand Casper Natrona Co Ap, US Casper Natrona Co Ap, US Casper Natrona Co ApChange location Precipitation stripe Data sourcesLocation Record high 1954 Recent observations View 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 Change location