{"metadata":{"title":"Onawa, IA Monthly Climate Normals","page_url":"https://plainclimate.com/city/onawa-ia","primary_station_id":"USC00136243","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, \"Onawa, IA Climate Normals\". https://plainclimate.com/city/onawa-ia","row_count":12},"annual_summary":{"city_slug":"onawa-ia","ann_tavg":48.5,"ann_tmax":60.9,"ann_tmin":36.1,"ann_prcp":29.86,"ann_snow":31,"ann_htdd":6845.1,"ann_cldd":876,"frost_first":"10/03","frost_last":"05/01","growing_season":155,"warmest_month":7,"coldest_month":1,"wettest_month":5,"driest_month":1,"snowiest_month":1,"comfort_score":59},"data":[{"month":"January","month_number":1,"avg_temp_f":19.4,"avg_high_f":30.2,"avg_low_f":8.5,"precip_in":0.54,"snow_in":7.9,"heating_degree_days":1414.9,"cooling_degree_days":0,"days_with_precip":4.6,"days_with_snow":4.1,"days_freezing":30.5,"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":24,"avg_high_f":35.6,"avg_low_f":12.5,"precip_in":0.78,"snow_in":6.6,"heating_degree_days":1146.4,"cooling_degree_days":0,"days_with_precip":4.4,"days_with_snow":3.6,"days_freezing":26,"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":36.8,"avg_high_f":49.8,"avg_low_f":23.9,"precip_in":1.57,"snow_in":4.5,"heating_degree_days":873,"cooling_degree_days":0.2,"days_with_precip":5.8,"days_with_snow":2,"days_freezing":22.6,"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":48.7,"avg_high_f":62.7,"avg_low_f":34.7,"precip_in":3.28,"snow_in":1.8,"heating_degree_days":495.3,"cooling_degree_days":6.3,"days_with_precip":8,"days_with_snow":0.8,"days_freezing":9.2,"days_90f_plus":0.4,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"May","month_number":5,"avg_temp_f":60.7,"avg_high_f":73.5,"avg_low_f":47.9,"precip_in":4.58,"snow_in":0,"heating_degree_days":190.4,"cooling_degree_days":57,"days_with_precip":9.2,"days_with_snow":0,"days_freezing":0.8,"days_90f_plus":1.7,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"June","month_number":6,"avg_temp_f":71,"avg_high_f":83.1,"avg_low_f":59,"precip_in":4.18,"snow_in":0,"heating_degree_days":21.1,"cooling_degree_days":202.5,"days_with_precip":8.8,"days_with_snow":0,"days_freezing":0,"days_90f_plus":5.5,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":74.3,"avg_high_f":86,"avg_low_f":62.6,"precip_in":3.39,"snow_in":0,"heating_degree_days":4,"cooling_degree_days":292.3,"days_with_precip":7.5,"days_with_snow":0,"days_freezing":0,"days_90f_plus":9.3,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":71.5,"avg_high_f":83.7,"avg_low_f":59.4,"precip_in":4.07,"snow_in":0,"heating_degree_days":12.6,"cooling_degree_days":215.6,"days_with_precip":6.9,"days_with_snow":0,"days_freezing":0,"days_90f_plus":6.1,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"September","month_number":9,"avg_temp_f":64.2,"avg_high_f":78.1,"avg_low_f":50.3,"precip_in":2.97,"snow_in":0,"heating_degree_days":114.5,"cooling_degree_days":90.3,"days_with_precip":6.4,"days_with_snow":0,"days_freezing":0.9,"days_90f_plus":2.9,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"October","month_number":10,"avg_temp_f":51.3,"avg_high_f":65.4,"avg_low_f":37.3,"precip_in":2.31,"snow_in":0.3,"heating_degree_days":434.8,"cooling_degree_days":11.6,"days_with_precip":5.3,"days_with_snow":0.2,"days_freezing":8.6,"days_90f_plus":0.5,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"November","month_number":11,"avg_temp_f":36.1,"avg_high_f":48.6,"avg_low_f":23.7,"precip_in":1.5,"snow_in":2.8,"heating_degree_days":865.7,"cooling_degree_days":0.3,"days_with_precip":4.7,"days_with_snow":2,"days_freezing":22.7,"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":24,"avg_high_f":34.4,"avg_low_f":13.5,"precip_in":0.69,"snow_in":7.1,"heating_degree_days":1272.4,"cooling_degree_days":0,"days_with_precip":3.6,"days_with_snow":3.1,"days_freezing":29.5,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}