{"metadata":{"title":"Rochford, SD Monthly Climate Normals","page_url":"https://plainclimate.com/city/rochford-sd","primary_station_id":"USC00397227","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, \"Rochford, SD Climate Normals\". https://plainclimate.com/city/rochford-sd","row_count":12},"annual_summary":{"city_slug":"rochford-sd","ann_tavg":38.8,"ann_tmax":55.7,"ann_tmin":22,"ann_prcp":null,"ann_snow":null,"ann_htdd":9565.2,"ann_cldd":55.1,"frost_first":"-9999.0","frost_last":"-9999.0","growing_season":null,"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":19.7,"avg_high_f":36.8,"avg_low_f":2.6,"precip_in":null,"snow_in":null,"heating_degree_days":1404.3,"cooling_degree_days":0,"days_with_precip":null,"days_with_snow":null,"days_freezing":30.9,"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":20.7,"avg_high_f":37.2,"avg_low_f":4.2,"precip_in":null,"snow_in":null,"heating_degree_days":1240.2,"cooling_degree_days":0,"days_with_precip":null,"days_with_snow":null,"days_freezing":27.9,"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":28.3,"avg_high_f":45.1,"avg_low_f":11.6,"precip_in":null,"snow_in":null,"heating_degree_days":1136.2,"cooling_degree_days":0,"days_with_precip":null,"days_with_snow":null,"days_freezing":30.5,"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":36.1,"avg_high_f":50.9,"avg_low_f":21.3,"precip_in":null,"snow_in":null,"heating_degree_days":867,"cooling_degree_days":0,"days_with_precip":null,"days_with_snow":null,"days_freezing":28.2,"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":45.1,"avg_high_f":59.7,"avg_low_f":30.6,"precip_in":null,"snow_in":null,"heating_degree_days":615.4,"cooling_degree_days":0,"days_with_precip":null,"days_with_snow":null,"days_freezing":18.8,"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":55.1,"avg_high_f":71.4,"avg_low_f":38.7,"precip_in":null,"snow_in":null,"heating_degree_days":304.6,"cooling_degree_days":6.1,"days_with_precip":null,"days_with_snow":null,"days_freezing":6.4,"days_90f_plus":0.3,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":61.7,"avg_high_f":79.8,"avg_low_f":43.7,"precip_in":null,"snow_in":null,"heating_degree_days":134.8,"cooling_degree_days":33.9,"days_with_precip":null,"days_with_snow":null,"days_freezing":1.3,"days_90f_plus":2.4,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":59.5,"avg_high_f":78.8,"avg_low_f":40.3,"precip_in":null,"snow_in":null,"heating_degree_days":182.7,"cooling_degree_days":13.7,"days_with_precip":null,"days_with_snow":null,"days_freezing":2.3,"days_90f_plus":1.7,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"September","month_number":9,"avg_temp_f":51.3,"avg_high_f":71.2,"avg_low_f":31.5,"precip_in":null,"snow_in":null,"heating_degree_days":410.9,"cooling_degree_days":1.3,"days_with_precip":null,"days_with_snow":null,"days_freezing":19.3,"days_90f_plus":0.3,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"October","month_number":10,"avg_temp_f":38.8,"avg_high_f":56.3,"avg_low_f":21.4,"precip_in":null,"snow_in":null,"heating_degree_days":810.7,"cooling_degree_days":0.1,"days_with_precip":null,"days_with_snow":null,"days_freezing":29.1,"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":28.2,"avg_high_f":44.4,"avg_low_f":12,"precip_in":null,"snow_in":null,"heating_degree_days":1103.9,"cooling_degree_days":0,"days_with_precip":null,"days_with_snow":null,"days_freezing":29.8,"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":21.3,"avg_high_f":36.5,"avg_low_f":6.1,"precip_in":null,"snow_in":null,"heating_degree_days":1354.6,"cooling_degree_days":0,"days_with_precip":null,"days_with_snow":null,"days_freezing":30.9,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}