{"metadata":{"title":"Pittsfield, IL Monthly Climate Normals","page_url":"https://plainclimate.com/city/pittsfield-il","primary_station_id":"USC00116837","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, \"Pittsfield, IL Climate Normals\". https://plainclimate.com/city/pittsfield-il","row_count":12},"annual_summary":{"city_slug":"pittsfield-il","ann_tavg":53.8,"ann_tmax":64.5,"ann_tmin":43.1,"ann_prcp":40.5,"ann_snow":15.6,"ann_htdd":5301.1,"ann_cldd":1251.6,"frost_first":"10/21","frost_last":"04/14","growing_season":190,"warmest_month":7,"coldest_month":1,"wettest_month":6,"driest_month":1,"snowiest_month":2,"comfort_score":68},"data":[{"month":"January","month_number":1,"avg_temp_f":27.5,"avg_high_f":36.5,"avg_low_f":18.5,"precip_in":2.03,"snow_in":4,"heating_degree_days":1162,"cooling_degree_days":0,"days_with_precip":6.2,"days_with_snow":2.6,"days_freezing":27.7,"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":32.1,"avg_high_f":41.9,"avg_low_f":22.3,"precip_in":2.14,"snow_in":5.1,"heating_degree_days":921.1,"cooling_degree_days":0,"days_with_precip":6.5,"days_with_snow":2.5,"days_freezing":23.4,"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":42.2,"avg_high_f":53,"avg_low_f":31.5,"precip_in":2.95,"snow_in":1.7,"heating_degree_days":708.2,"cooling_degree_days":3,"days_with_precip":8.8,"days_with_snow":0.8,"days_freezing":17.8,"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":54.1,"avg_high_f":65.8,"avg_low_f":42.4,"precip_in":4.14,"snow_in":0.3,"heating_degree_days":348.8,"cooling_degree_days":21.7,"days_with_precip":10.7,"days_with_snow":0.1,"days_freezing":5,"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":64.6,"avg_high_f":75.4,"avg_low_f":53.9,"precip_in":4.83,"snow_in":0,"heating_degree_days":115.6,"cooling_degree_days":104.7,"days_with_precip":12.2,"days_with_snow":0,"days_freezing":0.2,"days_90f_plus":0.9,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"June","month_number":6,"avg_temp_f":73.6,"avg_high_f":84.1,"avg_low_f":63,"precip_in":5.01,"snow_in":0,"heating_degree_days":12.1,"cooling_degree_days":268.4,"days_with_precip":10.3,"days_with_snow":0,"days_freezing":0,"days_90f_plus":6.7,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":76.8,"avg_high_f":87.5,"avg_low_f":66.1,"precip_in":4.1,"snow_in":0,"heating_degree_days":1.5,"cooling_degree_days":367.2,"days_with_precip":8.4,"days_with_snow":0,"days_freezing":0,"days_90f_plus":11.1,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":75.1,"avg_high_f":86.5,"avg_low_f":63.7,"precip_in":3.43,"snow_in":0,"heating_degree_days":2.5,"cooling_degree_days":315.4,"days_with_precip":7.7,"days_with_snow":0,"days_freezing":0,"days_90f_plus":7.7,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"September","month_number":9,"avg_temp_f":67.4,"avg_high_f":80.1,"avg_low_f":54.8,"precip_in":3.61,"snow_in":0,"heating_degree_days":67.9,"cooling_degree_days":141.2,"days_with_precip":7.8,"days_with_snow":0,"days_freezing":0,"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":55.8,"avg_high_f":67.9,"avg_low_f":43.8,"precip_in":3.01,"snow_in":0,"heating_degree_days":311.7,"cooling_degree_days":28,"days_with_precip":8.4,"days_with_snow":0,"days_freezing":3.7,"days_90f_plus":0.2,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"November","month_number":11,"avg_temp_f":43.5,"avg_high_f":53.8,"avg_low_f":33.3,"precip_in":2.92,"snow_in":1.1,"heating_degree_days":645.5,"cooling_degree_days":2,"days_with_precip":7.8,"days_with_snow":0.4,"days_freezing":15.5,"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":32.6,"avg_high_f":41.5,"avg_low_f":23.7,"precip_in":2.33,"snow_in":3.4,"heating_degree_days":1004.2,"cooling_degree_days":0,"days_with_precip":6.8,"days_with_snow":1.9,"days_freezing":25.7,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}