{"metadata":{"title":"Superior, MT Monthly Climate Normals","page_url":"https://plainclimate.com/city/superior-mt","primary_station_id":"USW00024159","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, \"Superior, MT Climate Normals\". https://plainclimate.com/city/superior-mt","row_count":12},"annual_summary":{"city_slug":"superior-mt","ann_tavg":47.7,"ann_tmax":60.9,"ann_tmin":34.4,"ann_prcp":16.42,"ann_snow":null,"ann_htdd":6693.7,"ann_cldd":400.2,"frost_first":"09/23","frost_last":"05/17","growing_season":129,"warmest_month":7,"coldest_month":12,"wettest_month":6,"driest_month":7,"snowiest_month":null,"comfort_score":52},"data":[{"month":"January","month_number":1,"avg_temp_f":28.6,"avg_high_f":35.8,"avg_low_f":21.5,"precip_in":1.19,"snow_in":null,"heating_degree_days":1126.8,"cooling_degree_days":0,"days_with_precip":10.4,"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":"February","month_number":2,"avg_temp_f":32.1,"avg_high_f":42,"avg_low_f":22.3,"precip_in":1.29,"snow_in":null,"heating_degree_days":919.7,"cooling_degree_days":0,"days_with_precip":9.4,"days_with_snow":null,"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":40,"avg_high_f":52.6,"avg_low_f":27.4,"precip_in":1.11,"snow_in":null,"heating_degree_days":775.1,"cooling_degree_days":0,"days_with_precip":10.1,"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":"April","month_number":4,"avg_temp_f":46.5,"avg_high_f":60.7,"avg_low_f":32.2,"precip_in":1.36,"snow_in":null,"heating_degree_days":556.6,"cooling_degree_days":0.1,"days_with_precip":10.9,"days_with_snow":null,"days_freezing":14.6,"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":55.3,"avg_high_f":70.8,"avg_low_f":39.8,"precip_in":1.8,"snow_in":null,"heating_degree_days":308.5,"cooling_degree_days":7.7,"days_with_precip":10.3,"days_with_snow":null,"days_freezing":4.4,"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":61.6,"avg_high_f":77.5,"avg_low_f":45.7,"precip_in":2.03,"snow_in":null,"heating_degree_days":143,"cooling_degree_days":41,"days_with_precip":10.4,"days_with_snow":null,"days_freezing":0.4,"days_90f_plus":3.5,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":69.6,"avg_high_f":88.5,"avg_low_f":50.6,"precip_in":0.93,"snow_in":null,"heating_degree_days":32.4,"cooling_degree_days":173.3,"days_with_precip":5.8,"days_with_snow":null,"days_freezing":0,"days_90f_plus":15.8,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":68.8,"avg_high_f":88.2,"avg_low_f":49.4,"precip_in":1.05,"snow_in":null,"heating_degree_days":33.7,"cooling_degree_days":151.4,"days_with_precip":5.2,"days_with_snow":null,"days_freezing":0.1,"days_90f_plus":14.7,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"September","month_number":9,"avg_temp_f":59.5,"avg_high_f":77.2,"avg_low_f":41.9,"precip_in":0.99,"snow_in":null,"heating_degree_days":189.8,"cooling_degree_days":26.2,"days_with_precip":6.5,"days_with_snow":null,"days_freezing":2.5,"days_90f_plus":3.2,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"October","month_number":10,"avg_temp_f":47.2,"avg_high_f":60.5,"avg_low_f":33.9,"precip_in":1.34,"snow_in":null,"heating_degree_days":552.1,"cooling_degree_days":0.3,"days_with_precip":8.9,"days_with_snow":null,"days_freezing":12.5,"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":34.9,"avg_high_f":42.9,"avg_low_f":26.9,"precip_in":1.95,"snow_in":null,"heating_degree_days":902.9,"cooling_degree_days":0,"days_with_precip":12.4,"days_with_snow":null,"days_freezing":21.6,"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":27.8,"avg_high_f":34,"avg_low_f":21.6,"precip_in":1.38,"snow_in":null,"heating_degree_days":1153,"cooling_degree_days":0,"days_with_precip":11.1,"days_with_snow":null,"days_freezing":28.4,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}