{"metadata":{"title":"Geneseo, IL Monthly Climate Normals","page_url":"https://plainclimate.com/city/geneseo-il","primary_station_id":"USC00113384","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, \"Geneseo, IL Climate Normals\". https://plainclimate.com/city/geneseo-il","row_count":12},"annual_summary":{"city_slug":"geneseo-il","ann_tavg":50.9,"ann_tmax":60.8,"ann_tmin":41,"ann_prcp":39.09,"ann_snow":28.4,"ann_htdd":6138.7,"ann_cldd":1030.6,"frost_first":"10/20","frost_last":"04/20","growing_season":183,"warmest_month":7,"coldest_month":1,"wettest_month":5,"driest_month":1,"snowiest_month":1,"comfort_score":63},"data":[{"month":"January","month_number":1,"avg_temp_f":22.7,"avg_high_f":30.8,"avg_low_f":14.6,"precip_in":1.64,"snow_in":9.8,"heating_degree_days":1311,"cooling_degree_days":0,"days_with_precip":8.4,"days_with_snow":4.7,"days_freezing":28.9,"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":27.2,"avg_high_f":35.7,"avg_low_f":18.6,"precip_in":1.81,"snow_in":6.1,"heating_degree_days":1059.6,"cooling_degree_days":0,"days_with_precip":7.2,"days_with_snow":3.1,"days_freezing":25,"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":39.1,"avg_high_f":48.9,"avg_low_f":29.3,"precip_in":2.7,"snow_in":2.8,"heating_degree_days":804.8,"cooling_degree_days":1.8,"days_with_precip":9.3,"days_with_snow":1.4,"days_freezing":19.7,"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":51.1,"avg_high_f":62.2,"avg_low_f":39.9,"precip_in":3.96,"snow_in":0.7,"heating_degree_days":428.2,"cooling_degree_days":9.7,"days_with_precip":10.6,"days_with_snow":0.3,"days_freezing":5.2,"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":62.6,"avg_high_f":73.7,"avg_low_f":51.6,"precip_in":4.87,"snow_in":0,"heating_degree_days":152,"cooling_degree_days":79.1,"days_with_precip":12,"days_with_snow":0,"days_freezing":0.2,"days_90f_plus":1.2,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"June","month_number":6,"avg_temp_f":72.2,"avg_high_f":82.8,"avg_low_f":61.5,"precip_in":4.42,"snow_in":0,"heating_degree_days":16.3,"cooling_degree_days":230.6,"days_with_precip":10.2,"days_with_snow":0,"days_freezing":0,"days_90f_plus":5.4,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":75.4,"avg_high_f":85.7,"avg_low_f":65.1,"precip_in":4.13,"snow_in":0,"heating_degree_days":1.5,"cooling_degree_days":323.8,"days_with_precip":8.1,"days_with_snow":0,"days_freezing":0,"days_90f_plus":7.9,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":73.1,"avg_high_f":83.4,"avg_low_f":62.9,"precip_in":4.1,"snow_in":0,"heating_degree_days":5,"cooling_degree_days":257.6,"days_with_precip":9,"days_with_snow":0,"days_freezing":0,"days_90f_plus":4.7,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"September","month_number":9,"avg_temp_f":65.8,"avg_high_f":77.1,"avg_low_f":54.5,"precip_in":3.57,"snow_in":0,"heating_degree_days":86.9,"cooling_degree_days":110.8,"days_with_precip":7.7,"days_with_snow":0,"days_freezing":0,"days_90f_plus":2.2,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"October","month_number":10,"avg_temp_f":53.4,"avg_high_f":64,"avg_low_f":42.9,"precip_in":3.21,"snow_in":0.1,"heating_degree_days":374.8,"cooling_degree_days":16.7,"days_with_precip":8.6,"days_with_snow":0.1,"days_freezing":3.4,"days_90f_plus":0.1,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"November","month_number":11,"avg_temp_f":39.8,"avg_high_f":48.8,"avg_low_f":30.7,"precip_in":2.56,"snow_in":1.6,"heating_degree_days":757.9,"cooling_degree_days":0.5,"days_with_precip":8.2,"days_with_snow":0.8,"days_freezing":17,"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":28.2,"avg_high_f":35.9,"avg_low_f":20.5,"precip_in":2.12,"snow_in":7.3,"heating_degree_days":1140.6,"cooling_degree_days":0,"days_with_precip":8.3,"days_with_snow":3.5,"days_freezing":26.5,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}