{"metadata":{"title":"Butternut, WI Monthly Climate Normals","page_url":"https://plainclimate.com/city/butternut-wi","primary_station_id":"USC00471249","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, \"Butternut, WI Climate Normals\". https://plainclimate.com/city/butternut-wi","row_count":12},"annual_summary":{"city_slug":"butternut-wi","ann_tavg":39.7,"ann_tmax":50.3,"ann_tmin":29.1,"ann_prcp":36.01,"ann_snow":null,"ann_htdd":9384.9,"ann_cldd":217.2,"frost_first":"09/24","frost_last":"05/22","growing_season":125,"warmest_month":7,"coldest_month":1,"wettest_month":6,"driest_month":1,"snowiest_month":null,"comfort_score":52},"data":[{"month":"January","month_number":1,"avg_temp_f":10.4,"avg_high_f":19.6,"avg_low_f":1.1,"precip_in":1.16,"snow_in":null,"heating_degree_days":1693.9,"cooling_degree_days":0,"days_with_precip":null,"days_with_snow":null,"days_freezing":30.9,"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":13.6,"avg_high_f":24.3,"avg_low_f":2.9,"precip_in":1.38,"snow_in":null,"heating_degree_days":1439.1,"cooling_degree_days":0,"days_with_precip":null,"days_with_snow":null,"days_freezing":27.7,"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":25.4,"avg_high_f":36.8,"avg_low_f":14,"precip_in":1.96,"snow_in":null,"heating_degree_days":1227.7,"cooling_degree_days":0,"days_with_precip":null,"days_with_snow":null,"days_freezing":28.3,"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":38.6,"avg_high_f":49.7,"avg_low_f":27.5,"precip_in":3.02,"snow_in":null,"heating_degree_days":792.2,"cooling_degree_days":0.2,"days_with_precip":null,"days_with_snow":null,"days_freezing":23.1,"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":52,"avg_high_f":64,"avg_low_f":39.9,"precip_in":3.87,"snow_in":null,"heating_degree_days":414.6,"cooling_degree_days":10,"days_with_precip":null,"days_with_snow":null,"days_freezing":7.7,"days_90f_plus":0.1,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"June","month_number":6,"avg_temp_f":61.7,"avg_high_f":73.5,"avg_low_f":49.9,"precip_in":4.98,"snow_in":null,"heating_degree_days":143.1,"cooling_degree_days":43.9,"days_with_precip":null,"days_with_snow":null,"days_freezing":0.8,"days_90f_plus":0.2,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":65.8,"avg_high_f":77.7,"avg_low_f":53.8,"precip_in":4.26,"snow_in":null,"heating_degree_days":64.8,"cooling_degree_days":87.9,"days_with_precip":null,"days_with_snow":null,"days_freezing":0,"days_90f_plus":1.1,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":63.8,"avg_high_f":75.9,"avg_low_f":51.7,"precip_in":3.71,"snow_in":null,"heating_degree_days":91.1,"cooling_degree_days":53.8,"days_with_precip":null,"days_with_snow":null,"days_freezing":0,"days_90f_plus":0.4,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"September","month_number":9,"avg_temp_f":56,"avg_high_f":67.8,"avg_low_f":44.3,"precip_in":3.83,"snow_in":null,"heating_degree_days":288.3,"cooling_degree_days":19.7,"days_with_precip":null,"days_with_snow":null,"days_freezing":3.7,"days_90f_plus":0.1,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"October","month_number":10,"avg_temp_f":43.2,"avg_high_f":53.2,"avg_low_f":33.2,"precip_in":3.98,"snow_in":null,"heating_degree_days":677.3,"cooling_degree_days":1.5,"days_with_precip":null,"days_with_snow":null,"days_freezing":16.3,"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":29.4,"avg_high_f":36.9,"avg_low_f":21.8,"precip_in":2.06,"snow_in":null,"heating_degree_days":1069.5,"cooling_degree_days":0,"days_with_precip":null,"days_with_snow":null,"days_freezing":26,"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":17.1,"avg_high_f":24.8,"avg_low_f":9.5,"precip_in":1.8,"snow_in":null,"heating_degree_days":1483.3,"cooling_degree_days":0,"days_with_precip":null,"days_with_snow":null,"days_freezing":30.7,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}