{"metadata":{"title":"Foster Dam, OR Monthly Climate Normals","page_url":"https://plainclimate.com/city/foster-dam-or","primary_station_id":"USC00353047","source":"NOAA 1991-2020 U.S. Climate Normals","source_url":"https://www.ncei.noaa.gov/products/land-based-station/us-climate-normals","vintage":"2026-08-04","license":"CC0 1.0","license_url":"https://creativecommons.org/publicdomain/zero/1.0/","citation":"PlainClimate, \"Foster Dam, OR Climate Normals\". https://plainclimate.com/city/foster-dam-or","row_count":12},"annual_summary":{"city_slug":"foster-dam-or","ann_tavg":52.4,"ann_tmax":63.2,"ann_tmin":41.6,"ann_prcp":54.45,"ann_snow":0.1,"ann_htdd":4810.8,"ann_cldd":232.8,"frost_first":"10/28","frost_last":"04/12","growing_season":199,"warmest_month":7,"coldest_month":12,"wettest_month":12,"driest_month":7,"snowiest_month":1,"comfort_score":63},"data":[{"month":"January","month_number":1,"avg_temp_f":40.9,"avg_high_f":47.5,"avg_low_f":34.3,"precip_in":7.15,"snow_in":0.1,"heating_degree_days":747.1,"cooling_degree_days":0,"days_with_precip":19.1,"days_with_snow":0,"days_freezing":12.6,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"February","month_number":2,"avg_temp_f":42.8,"avg_high_f":51.2,"avg_low_f":34.5,"precip_in":5.56,"snow_in":0,"heating_degree_days":620.2,"cooling_degree_days":0,"days_with_precip":16.8,"days_with_snow":0,"days_freezing":11.4,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"March","month_number":3,"avg_temp_f":46.2,"avg_high_f":55.5,"avg_low_f":36.9,"precip_in":6.26,"snow_in":0,"heating_degree_days":582.8,"cooling_degree_days":0,"days_with_precip":18.6,"days_with_snow":0,"days_freezing":6.5,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"April","month_number":4,"avg_temp_f":49.9,"avg_high_f":60.3,"avg_low_f":39.6,"precip_in":5.37,"snow_in":0,"heating_degree_days":452,"cooling_degree_days":0.6,"days_with_precip":17.9,"days_with_snow":0,"days_freezing":2.3,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"May","month_number":5,"avg_temp_f":55.5,"avg_high_f":67,"avg_low_f":43.9,"precip_in":3.8,"snow_in":0,"heating_degree_days":302.4,"cooling_degree_days":6.3,"days_with_precip":12.8,"days_with_snow":0,"days_freezing":0.5,"days_90f_plus":0.3,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"June","month_number":6,"avg_temp_f":60.4,"avg_high_f":72.9,"avg_low_f":47.9,"precip_in":2.46,"snow_in":0,"heating_degree_days":159.9,"cooling_degree_days":21.9,"days_with_precip":9.2,"days_with_snow":0,"days_freezing":0,"days_90f_plus":1.4,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":66.4,"avg_high_f":81.7,"avg_low_f":51,"precip_in":0.54,"snow_in":0,"heating_degree_days":43.8,"cooling_degree_days":85.5,"days_with_precip":2.8,"days_with_snow":0,"days_freezing":0,"days_90f_plus":5.9,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":66.4,"avg_high_f":82.6,"avg_low_f":50.3,"precip_in":0.64,"snow_in":0,"heating_degree_days":42.9,"cooling_degree_days":87.8,"days_with_precip":3,"days_with_snow":0,"days_freezing":0,"days_90f_plus":6.6,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"September","month_number":9,"avg_temp_f":61.6,"avg_high_f":76.4,"avg_low_f":46.8,"precip_in":1.99,"snow_in":0,"heating_degree_days":131.5,"cooling_degree_days":29.5,"days_with_precip":6.8,"days_with_snow":0,"days_freezing":0.1,"days_90f_plus":2.3,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"October","month_number":10,"avg_temp_f":53,"avg_high_f":64.1,"avg_low_f":41.9,"precip_in":4.64,"snow_in":0,"heating_degree_days":373.2,"cooling_degree_days":1.3,"days_with_precip":13.1,"days_with_snow":0,"days_freezing":2.1,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"November","month_number":11,"avg_temp_f":45.3,"avg_high_f":52.9,"avg_low_f":37.6,"precip_in":7.64,"snow_in":0,"heating_degree_days":592.5,"cooling_degree_days":0,"days_with_precip":18.4,"days_with_snow":0,"days_freezing":7.7,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"December","month_number":12,"avg_temp_f":40.4,"avg_high_f":46.5,"avg_low_f":34.3,"precip_in":8.4,"snow_in":0,"heating_degree_days":762.6,"cooling_degree_days":0,"days_with_precip":20,"days_with_snow":0,"days_freezing":12.1,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}