{"metadata":{"title":"Montrose, SD Monthly Climate Normals","page_url":"https://plainclimate.com/city/montrose-sd","primary_station_id":"USC00395738","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, \"Montrose, SD Climate Normals\". https://plainclimate.com/city/montrose-sd","row_count":12},"annual_summary":{"city_slug":"montrose-sd","ann_tavg":45.5,"ann_tmax":56.6,"ann_tmin":34.4,"ann_prcp":null,"ann_snow":null,"ann_htdd":7736.3,"ann_cldd":661.5,"frost_first":"10/04","frost_last":"05/03","growing_season":154,"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":15.7,"avg_high_f":25.1,"avg_low_f":6.3,"precip_in":null,"snow_in":null,"heating_degree_days":1527.9,"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":20.7,"avg_high_f":30,"avg_low_f":11.4,"precip_in":null,"snow_in":null,"heating_degree_days":1240.3,"cooling_degree_days":0,"days_with_precip":null,"days_with_snow":null,"days_freezing":27,"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":32.2,"avg_high_f":42.9,"avg_low_f":21.6,"precip_in":null,"snow_in":null,"heating_degree_days":1015.5,"cooling_degree_days":0.1,"days_with_precip":null,"days_with_snow":null,"days_freezing":26.4,"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":44.4,"avg_high_f":56.9,"avg_low_f":31.9,"precip_in":null,"snow_in":null,"heating_degree_days":619,"cooling_degree_days":1,"days_with_precip":null,"days_with_snow":null,"days_freezing":12.6,"days_90f_plus":0.1,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"May","month_number":5,"avg_temp_f":57.4,"avg_high_f":69.3,"avg_low_f":45.4,"precip_in":null,"snow_in":null,"heating_degree_days":263.9,"cooling_degree_days":26.8,"days_with_precip":null,"days_with_snow":null,"days_freezing":1.8,"days_90f_plus":0.8,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"June","month_number":6,"avg_temp_f":68.2,"avg_high_f":79.7,"avg_low_f":56.8,"precip_in":null,"snow_in":null,"heating_degree_days":43.4,"cooling_degree_days":140.6,"days_with_precip":null,"days_with_snow":null,"days_freezing":0,"days_90f_plus":3.6,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":73,"avg_high_f":84.3,"avg_low_f":61.7,"precip_in":null,"snow_in":null,"heating_degree_days":8.2,"cooling_degree_days":256,"days_with_precip":null,"days_with_snow":null,"days_freezing":0,"days_90f_plus":10.3,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":70.1,"avg_high_f":81.4,"avg_low_f":58.8,"precip_in":null,"snow_in":null,"heating_degree_days":19.4,"cooling_degree_days":177.4,"days_with_precip":null,"days_with_snow":null,"days_freezing":0,"days_90f_plus":5.1,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"September","month_number":9,"avg_temp_f":61.9,"avg_high_f":74.5,"avg_low_f":49.3,"precip_in":null,"snow_in":null,"heating_degree_days":150.1,"cooling_degree_days":56.9,"days_with_precip":null,"days_with_snow":null,"days_freezing":0.2,"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":48.5,"avg_high_f":61,"avg_low_f":35.9,"precip_in":null,"snow_in":null,"heating_degree_days":515.8,"cooling_degree_days":2.8,"days_with_precip":null,"days_with_snow":null,"days_freezing":9.9,"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":32.6,"avg_high_f":43.5,"avg_low_f":21.8,"precip_in":null,"snow_in":null,"heating_degree_days":970.4,"cooling_degree_days":0,"days_with_precip":null,"days_with_snow":null,"days_freezing":23.4,"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,"avg_high_f":30.5,"avg_low_f":11.6,"precip_in":null,"snow_in":null,"heating_degree_days":1362.3,"cooling_degree_days":0,"days_with_precip":null,"days_with_snow":null,"days_freezing":30.6,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}