{"metadata":{"title":"Manchester, IA Monthly Climate Normals","page_url":"https://plainclimate.com/city/manchester-ia","primary_station_id":"USC00135086","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, \"Manchester, IA Climate Normals\". https://plainclimate.com/city/manchester-ia","row_count":12},"annual_summary":{"city_slug":"manchester-ia","ann_tavg":46.3,"ann_tmax":56.8,"ann_tmin":35.8,"ann_prcp":38.57,"ann_snow":34.7,"ann_htdd":7392,"ann_cldd":616.6,"frost_first":"10/04","frost_last":"05/03","growing_season":154,"warmest_month":7,"coldest_month":1,"wettest_month":6,"driest_month":1,"snowiest_month":1,"comfort_score":59},"data":[{"month":"January","month_number":1,"avg_temp_f":17.1,"avg_high_f":26.1,"avg_low_f":8.2,"precip_in":1.14,"snow_in":9.2,"heating_degree_days":1483.1,"cooling_degree_days":0,"days_with_precip":9,"days_with_snow":7.4,"days_freezing":30.3,"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":21.3,"avg_high_f":30.6,"avg_low_f":12,"precip_in":1.35,"snow_in":8.7,"heating_degree_days":1223.5,"cooling_degree_days":0,"days_with_precip":7.9,"days_with_snow":6.1,"days_freezing":26.5,"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":33.8,"avg_high_f":43.7,"avg_low_f":23.8,"precip_in":2.1,"snow_in":4.2,"heating_degree_days":969.2,"cooling_degree_days":0.4,"days_with_precip":9.6,"days_with_snow":3.4,"days_freezing":25,"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":46.3,"avg_high_f":57.8,"avg_low_f":34.8,"precip_in":3.82,"snow_in":1.4,"heating_degree_days":564.1,"cooling_degree_days":3.1,"days_with_precip":11.3,"days_with_snow":1.1,"days_freezing":11.8,"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":58.3,"avg_high_f":69.6,"avg_low_f":46.9,"precip_in":4.49,"snow_in":0,"heating_degree_days":246.6,"cooling_degree_days":37.2,"days_with_precip":12.8,"days_with_snow":0.1,"days_freezing":1.6,"days_90f_plus":0.4,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"June","month_number":6,"avg_temp_f":68.3,"avg_high_f":79.1,"avg_low_f":57.6,"precip_in":6.02,"snow_in":0,"heating_degree_days":41,"cooling_degree_days":141.4,"days_with_precip":12.3,"days_with_snow":0,"days_freezing":0,"days_90f_plus":2.1,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":71.6,"avg_high_f":82.1,"avg_low_f":61,"precip_in":4.79,"snow_in":0,"heating_degree_days":10.7,"cooling_degree_days":213.7,"days_with_precip":9.6,"days_with_snow":0,"days_freezing":0,"days_90f_plus":3.7,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":69.3,"avg_high_f":80.4,"avg_low_f":58.1,"precip_in":4.13,"snow_in":0,"heating_degree_days":25,"cooling_degree_days":156.7,"days_with_precip":9.8,"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":"September","month_number":9,"avg_temp_f":61.5,"avg_high_f":74.1,"avg_low_f":49,"precip_in":3.84,"snow_in":0,"heating_degree_days":160.7,"cooling_degree_days":57.1,"days_with_precip":9.2,"days_with_snow":0,"days_freezing":0.8,"days_90f_plus":0.9,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"October","month_number":10,"avg_temp_f":49.2,"avg_high_f":61,"avg_low_f":37.4,"precip_in":3.11,"snow_in":0.4,"heating_degree_days":496.9,"cooling_degree_days":7,"days_with_precip":9.1,"days_with_snow":0.3,"days_freezing":10.5,"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":35.4,"avg_high_f":45.1,"avg_low_f":25.7,"precip_in":2.2,"snow_in":2.3,"heating_degree_days":888,"cooling_degree_days":0,"days_with_precip":7.6,"days_with_snow":1.7,"days_freezing":22.3,"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":23.6,"avg_high_f":32,"avg_low_f":15.2,"precip_in":1.58,"snow_in":8.5,"heating_degree_days":1283.3,"cooling_degree_days":0,"days_with_precip":9.2,"days_with_snow":6.2,"days_freezing":29.2,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}