{"metadata":{"title":"Zeona, SD Monthly Climate Normals","page_url":"https://plainclimate.com/city/zeona-sd","primary_station_id":"USC00399537","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, \"Zeona, SD Climate Normals\". https://plainclimate.com/city/zeona-sd","row_count":12},"annual_summary":{"city_slug":"zeona-sd","ann_tavg":45,"ann_tmax":58.1,"ann_tmin":31.9,"ann_prcp":null,"ann_snow":null,"ann_htdd":7896.4,"ann_cldd":645.2,"frost_first":"09/28","frost_last":"05/11","growing_season":140,"warmest_month":7,"coldest_month":1,"wettest_month":1,"driest_month":null,"snowiest_month":null,"comfort_score":null},"data":[{"month":"January","month_number":1,"avg_temp_f":18.1,"avg_high_f":29.8,"avg_low_f":6.5,"precip_in":null,"snow_in":null,"heating_degree_days":1452.1,"cooling_degree_days":0,"days_with_precip":null,"days_with_snow":null,"days_freezing":31,"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":22.2,"avg_high_f":33.5,"avg_low_f":10.8,"precip_in":null,"snow_in":null,"heating_degree_days":1199.5,"cooling_degree_days":0,"days_with_precip":null,"days_with_snow":null,"days_freezing":27.3,"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":33,"avg_high_f":45.1,"avg_low_f":21,"precip_in":null,"snow_in":null,"heating_degree_days":990.5,"cooling_degree_days":0,"days_with_precip":null,"days_with_snow":null,"days_freezing":27.8,"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":43.7,"avg_high_f":56.3,"avg_low_f":31,"precip_in":null,"snow_in":null,"heating_degree_days":641.9,"cooling_degree_days":1.4,"days_with_precip":null,"days_with_snow":null,"days_freezing":17.2,"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":54.1,"avg_high_f":66.8,"avg_low_f":41.4,"precip_in":null,"snow_in":null,"heating_degree_days":350.9,"cooling_degree_days":13,"days_with_precip":null,"days_with_snow":null,"days_freezing":4.9,"days_90f_plus":0.7,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"June","month_number":6,"avg_temp_f":65.1,"avg_high_f":78.1,"avg_low_f":52.1,"precip_in":null,"snow_in":null,"heating_degree_days":88.3,"cooling_degree_days":91.2,"days_with_precip":null,"days_with_snow":null,"days_freezing":0.1,"days_90f_plus":2.8,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":72.6,"avg_high_f":87.4,"avg_low_f":57.8,"precip_in":null,"snow_in":null,"heating_degree_days":15.9,"cooling_degree_days":251.3,"days_with_precip":null,"days_with_snow":null,"days_freezing":0,"days_90f_plus":8.6,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":71.2,"avg_high_f":86.8,"avg_low_f":55.7,"precip_in":null,"snow_in":null,"heating_degree_days":26.4,"cooling_degree_days":220,"days_with_precip":null,"days_with_snow":null,"days_freezing":0,"days_90f_plus":13.5,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"September","month_number":9,"avg_temp_f":60.7,"avg_high_f":76.5,"avg_low_f":44.9,"precip_in":null,"snow_in":null,"heating_degree_days":194.4,"cooling_degree_days":65.2,"days_with_precip":null,"days_with_snow":null,"days_freezing":3.3,"days_90f_plus":4.5,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"October","month_number":10,"avg_temp_f":45.4,"avg_high_f":59.3,"avg_low_f":31.4,"precip_in":null,"snow_in":null,"heating_degree_days":612.3,"cooling_degree_days":3.1,"days_with_precip":null,"days_with_snow":null,"days_freezing":16.2,"days_90f_plus":0.5,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"November","month_number":11,"avg_temp_f":32,"avg_high_f":44.4,"avg_low_f":19.6,"precip_in":null,"snow_in":null,"heating_degree_days":989.8,"cooling_degree_days":0,"days_with_precip":null,"days_with_snow":null,"days_freezing":28.1,"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":22,"avg_high_f":33.6,"avg_low_f":10.3,"precip_in":null,"snow_in":null,"heating_degree_days":1334.3,"cooling_degree_days":0,"days_with_precip":null,"days_with_snow":null,"days_freezing":31,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}