{"metadata":{"title":"Columbus Junction, IA Monthly Climate Normals","page_url":"https://plainclimate.com/city/columbus-junction-ia","primary_station_id":"USC00131731","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, \"Columbus Junction, IA Climate Normals\". https://plainclimate.com/city/columbus-junction-ia","row_count":12},"annual_summary":{"city_slug":"columbus-junction-ia","ann_tavg":48.8,"ann_tmax":59.5,"ann_tmin":38,"ann_prcp":38.83,"ann_snow":31.3,"ann_htdd":6660.8,"ann_cldd":789.8,"frost_first":"10/10","frost_last":"04/26","growing_season":167,"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":20.4,"avg_high_f":29.9,"avg_low_f":10.9,"precip_in":1.17,"snow_in":9.5,"heating_degree_days":1382.4,"cooling_degree_days":0,"days_with_precip":8.1,"days_with_snow":5.4,"days_freezing":29.1,"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":24.1,"avg_high_f":34.3,"avg_low_f":14,"precip_in":1.94,"snow_in":7.1,"heating_degree_days":1143.7,"cooling_degree_days":0,"days_with_precip":7,"days_with_snow":3.3,"days_freezing":24.8,"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":36.9,"avg_high_f":48,"avg_low_f":25.8,"precip_in":2.33,"snow_in":5.3,"heating_degree_days":871.2,"cooling_degree_days":0.1,"days_with_precip":9,"days_with_snow":2.1,"days_freezing":20.9,"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":49.7,"avg_high_f":61.5,"avg_low_f":37.9,"precip_in":3.85,"snow_in":1.6,"heating_degree_days":465.5,"cooling_degree_days":6.5,"days_with_precip":10.5,"days_with_snow":0.7,"days_freezing":7,"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":60.5,"avg_high_f":71.5,"avg_low_f":49.5,"precip_in":5.41,"snow_in":0,"heating_degree_days":187.4,"cooling_degree_days":47.9,"days_with_precip":12,"days_with_snow":0,"days_freezing":0.3,"days_90f_plus":0.3,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"June","month_number":6,"avg_temp_f":69.6,"avg_high_f":80.1,"avg_low_f":59.2,"precip_in":4.91,"snow_in":0,"heating_degree_days":29.8,"cooling_degree_days":169.1,"days_with_precip":10.2,"days_with_snow":0,"days_freezing":0,"days_90f_plus":3.1,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":73.4,"avg_high_f":83.9,"avg_low_f":62.9,"precip_in":4.09,"snow_in":0,"heating_degree_days":2.9,"cooling_degree_days":263.2,"days_with_precip":9,"days_with_snow":0,"days_freezing":0,"days_90f_plus":6.5,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":71.6,"avg_high_f":82.4,"avg_low_f":60.7,"precip_in":4.22,"snow_in":0,"heating_degree_days":9,"cooling_degree_days":211.9,"days_with_precip":9.1,"days_with_snow":0,"days_freezing":0,"days_90f_plus":5.2,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"September","month_number":9,"avg_temp_f":63.9,"avg_high_f":76.3,"avg_low_f":51.5,"precip_in":3.75,"snow_in":0,"heating_degree_days":115,"cooling_degree_days":82,"days_with_precip":7.6,"days_with_snow":0,"days_freezing":0.4,"days_90f_plus":1.8,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"October","month_number":10,"avg_temp_f":51.4,"avg_high_f":63.1,"avg_low_f":39.7,"precip_in":3.03,"snow_in":0.2,"heating_degree_days":430.6,"cooling_degree_days":8.9,"days_with_precip":8,"days_with_snow":0.1,"days_freezing":5.5,"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":37.7,"avg_high_f":48.4,"avg_low_f":26.9,"precip_in":2.19,"snow_in":1.3,"heating_degree_days":820.6,"cooling_degree_days":0.2,"days_with_precip":7.9,"days_with_snow":1.2,"days_freezing":18.5,"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":26.2,"avg_high_f":35.2,"avg_low_f":17.2,"precip_in":1.94,"snow_in":6.3,"heating_degree_days":1202.7,"cooling_degree_days":0,"days_with_precip":6.8,"days_with_snow":4.3,"days_freezing":27.7,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}