{"metadata":{"title":"Nashville, IL Monthly Climate Normals","page_url":"https://plainclimate.com/city/nashville-il","primary_station_id":"USC00116011","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, \"Nashville, IL Climate Normals\". https://plainclimate.com/city/nashville-il","row_count":12},"annual_summary":{"city_slug":"nashville-il","ann_tavg":55.1,"ann_tmax":65.1,"ann_tmin":45.2,"ann_prcp":42.22,"ann_snow":11.7,"ann_htdd":4859,"ann_cldd":1303.9,"frost_first":"10/26","frost_last":"04/07","growing_season":202,"warmest_month":7,"coldest_month":1,"wettest_month":5,"driest_month":2,"snowiest_month":1,"comfort_score":78},"data":[{"month":"January","month_number":1,"avg_temp_f":30,"avg_high_f":38.7,"avg_low_f":21.3,"precip_in":2.68,"snow_in":3.7,"heating_degree_days":1084.7,"cooling_degree_days":0,"days_with_precip":8.1,"days_with_snow":2.4,"days_freezing":25.2,"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":34.4,"avg_high_f":43.9,"avg_low_f":24.9,"precip_in":2.15,"snow_in":3.7,"heating_degree_days":856.8,"cooling_degree_days":0.1,"days_with_precip":7.4,"days_with_snow":2.2,"days_freezing":20.4,"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":44.2,"avg_high_f":54.2,"avg_low_f":34.2,"precip_in":3.47,"snow_in":1.2,"heating_degree_days":647.1,"cooling_degree_days":2.3,"days_with_precip":9.9,"days_with_snow":0.9,"days_freezing":12.4,"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":55.5,"avg_high_f":66,"avg_low_f":45,"precip_in":4.58,"snow_in":0,"heating_degree_days":301.6,"cooling_degree_days":16.6,"days_with_precip":10.1,"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":65.3,"avg_high_f":75.2,"avg_low_f":55.5,"precip_in":4.81,"snow_in":0,"heating_degree_days":94.1,"cooling_degree_days":105,"days_with_precip":11.4,"days_with_snow":0,"days_freezing":0,"days_90f_plus":0.5,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"June","month_number":6,"avg_temp_f":74.1,"avg_high_f":84.2,"avg_low_f":64,"precip_in":4.68,"snow_in":0,"heating_degree_days":7,"cooling_degree_days":279.8,"days_with_precip":9.4,"days_with_snow":0,"days_freezing":0,"days_90f_plus":7.1,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":77.2,"avg_high_f":87.2,"avg_low_f":67.3,"precip_in":3.83,"snow_in":0,"heating_degree_days":0.2,"cooling_degree_days":379.9,"days_with_precip":8,"days_with_snow":0,"days_freezing":0,"days_90f_plus":11.2,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":75.6,"avg_high_f":86,"avg_low_f":65.1,"precip_in":3.09,"snow_in":0,"heating_degree_days":1.7,"cooling_degree_days":328.6,"days_with_precip":7.2,"days_with_snow":0,"days_freezing":0,"days_90f_plus":8.5,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"September","month_number":9,"avg_temp_f":68.7,"avg_high_f":79.9,"avg_low_f":57.5,"precip_in":3.54,"snow_in":0,"heating_degree_days":47,"cooling_degree_days":157.9,"days_with_precip":6.7,"days_with_snow":0,"days_freezing":0,"days_90f_plus":3.6,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"October","month_number":10,"avg_temp_f":57.6,"avg_high_f":68.9,"avg_low_f":46.2,"precip_in":3.17,"snow_in":0.1,"heating_degree_days":263.6,"cooling_degree_days":32.6,"days_with_precip":7.9,"days_with_snow":0.1,"days_freezing":1.4,"days_90f_plus":0.4,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"November","month_number":11,"avg_temp_f":44.4,"avg_high_f":54.2,"avg_low_f":34.7,"precip_in":3.55,"snow_in":0.5,"heating_degree_days":617.4,"cooling_degree_days":1,"days_with_precip":8.6,"days_with_snow":0.3,"days_freezing":11.1,"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":34.7,"avg_high_f":43.2,"avg_low_f":26.3,"precip_in":2.67,"snow_in":2.5,"heating_degree_days":937.7,"cooling_degree_days":0.1,"days_with_precip":8.6,"days_with_snow":1.6,"days_freezing":21.4,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}