{"metadata":{"title":"Hill City, SD Monthly Climate Normals","page_url":"https://plainclimate.com/city/hill-city-sd","primary_station_id":"USC00393868","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, \"Hill City, SD Climate Normals\". https://plainclimate.com/city/hill-city-sd","row_count":12},"annual_summary":{"city_slug":"hill-city-sd","ann_tavg":43.9,"ann_tmax":59.5,"ann_tmin":28.4,"ann_prcp":22.37,"ann_snow":66.6,"ann_htdd":7880.9,"ann_cldd":227.3,"frost_first":"09/10","frost_last":"06/01","growing_season":101,"warmest_month":7,"coldest_month":1,"wettest_month":5,"driest_month":1,"snowiest_month":4,"comfort_score":44},"data":[{"month":"January","month_number":1,"avg_temp_f":25.1,"avg_high_f":40.5,"avg_low_f":9.6,"precip_in":0.4,"snow_in":6.1,"heating_degree_days":1238.5,"cooling_degree_days":0,"days_with_precip":5.1,"days_with_snow":4.8,"days_freezing":30.6,"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":25.5,"avg_high_f":40.8,"avg_low_f":10.1,"precip_in":0.65,"snow_in":8.7,"heating_degree_days":1107.3,"cooling_degree_days":0,"days_with_precip":6.6,"days_with_snow":6,"days_freezing":27.6,"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":34,"avg_high_f":49,"avg_low_f":19.1,"precip_in":1.12,"snow_in":11.6,"heating_degree_days":959.5,"cooling_degree_days":0,"days_with_precip":7.4,"days_with_snow":5.7,"days_freezing":29,"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":41.1,"avg_high_f":55.8,"avg_low_f":26.3,"precip_in":2.46,"snow_in":13.8,"heating_degree_days":718.5,"cooling_degree_days":0,"days_with_precip":10.8,"days_with_snow":5.3,"days_freezing":24.1,"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":50.7,"avg_high_f":64.8,"avg_low_f":36.6,"precip_in":4.15,"snow_in":4.1,"heating_degree_days":446.7,"cooling_degree_days":3.4,"days_with_precip":14.3,"days_with_snow":1.2,"days_freezing":9.7,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"June","month_number":6,"avg_temp_f":60.3,"avg_high_f":75.4,"avg_low_f":45.2,"precip_in":3.43,"snow_in":0.3,"heating_degree_days":171.6,"cooling_degree_days":30.6,"days_with_precip":12.4,"days_with_snow":0.1,"days_freezing":1.3,"days_90f_plus":1.1,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":66.7,"avg_high_f":82.8,"avg_low_f":50.7,"precip_in":3.55,"snow_in":0,"heating_degree_days":52.1,"cooling_degree_days":106.3,"days_with_precip":12.2,"days_with_snow":0,"days_freezing":0,"days_90f_plus":4.2,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":65,"avg_high_f":81.8,"avg_low_f":48.3,"precip_in":2.34,"snow_in":0,"heating_degree_days":72.4,"cooling_degree_days":73.9,"days_with_precip":10.1,"days_with_snow":0,"days_freezing":0.4,"days_90f_plus":2.5,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"September","month_number":9,"avg_temp_f":56.2,"avg_high_f":73.8,"avg_low_f":38.5,"precip_in":1.54,"snow_in":1,"heating_degree_days":278.5,"cooling_degree_days":13,"days_with_precip":7.6,"days_with_snow":0.4,"days_freezing":6.9,"days_90f_plus":0.6,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"October","month_number":10,"avg_temp_f":43.8,"avg_high_f":59.8,"avg_low_f":27.9,"precip_in":1.65,"snow_in":6.5,"heating_degree_days":655.8,"cooling_degree_days":0.1,"days_with_precip":7.8,"days_with_snow":2.1,"days_freezing":22.7,"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":33.2,"avg_high_f":48.6,"avg_low_f":17.8,"precip_in":0.59,"snow_in":7.5,"heating_degree_days":954,"cooling_degree_days":0,"days_with_precip":5,"days_with_snow":4,"days_freezing":29.1,"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":25.4,"avg_high_f":40.7,"avg_low_f":10.2,"precip_in":0.49,"snow_in":7,"heating_degree_days":1225.9,"cooling_degree_days":0,"days_with_precip":5.1,"days_with_snow":4.7,"days_freezing":30.8,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}