{"metadata":{"title":"Grand Marais, MN Monthly Climate Normals","page_url":"https://plainclimate.com/city/grand-marais-mn","primary_station_id":"USW00094992","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, \"Grand Marais, MN Climate Normals\". https://plainclimate.com/city/grand-marais-mn","row_count":12},"annual_summary":{"city_slug":"grand-marais-mn","ann_tavg":39.5,"ann_tmax":47.5,"ann_tmin":31.5,"ann_prcp":25.92,"ann_snow":null,"ann_htdd":9309.7,"ann_cldd":50.6,"frost_first":"10/09","frost_last":"05/22","growing_season":140,"warmest_month":8,"coldest_month":1,"wettest_month":6,"driest_month":1,"snowiest_month":null,"comfort_score":52},"data":[{"month":"January","month_number":1,"avg_temp_f":15.4,"avg_high_f":24,"avg_low_f":6.8,"precip_in":0.81,"snow_in":null,"heating_degree_days":1537.5,"cooling_degree_days":0,"days_with_precip":9.5,"days_with_snow":null,"days_freezing":30.4,"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":18.1,"avg_high_f":26.6,"avg_low_f":9.5,"precip_in":0.88,"snow_in":null,"heating_degree_days":1314.6,"cooling_degree_days":0,"days_with_precip":8.1,"days_with_snow":null,"days_freezing":27.5,"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":27.2,"avg_high_f":34.9,"avg_low_f":19.5,"precip_in":1.22,"snow_in":null,"heating_degree_days":1171.9,"cooling_degree_days":0,"days_with_precip":9,"days_with_snow":null,"days_freezing":28,"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":37.4,"avg_high_f":45.1,"avg_low_f":29.7,"precip_in":2.24,"snow_in":null,"heating_degree_days":828,"cooling_degree_days":0,"days_with_precip":9.6,"days_with_snow":null,"days_freezing":20.1,"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":46.5,"avg_high_f":55.1,"avg_low_f":37.8,"precip_in":2.5,"snow_in":null,"heating_degree_days":575.1,"cooling_degree_days":0.1,"days_with_precip":12.5,"days_with_snow":null,"days_freezing":4.7,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"June","month_number":6,"avg_temp_f":52.9,"avg_high_f":62,"avg_low_f":43.8,"precip_in":3.73,"snow_in":null,"heating_degree_days":364.4,"cooling_degree_days":1.4,"days_with_precip":13.9,"days_with_snow":null,"days_freezing":0,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":60.4,"avg_high_f":69.6,"avg_low_f":51.1,"precip_in":3.1,"snow_in":null,"heating_degree_days":167.2,"cooling_degree_days":23,"days_with_precip":12.4,"days_with_snow":null,"days_freezing":0,"days_90f_plus":0.3,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":61.9,"avg_high_f":69.9,"avg_low_f":54,"precip_in":2.4,"snow_in":null,"heating_degree_days":116.9,"cooling_degree_days":22.3,"days_with_precip":10.5,"days_with_snow":null,"days_freezing":0,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"September","month_number":9,"avg_temp_f":55.5,"avg_high_f":63,"avg_low_f":48,"precip_in":2.65,"snow_in":null,"heating_degree_days":288.8,"cooling_degree_days":3.8,"days_with_precip":11.4,"days_with_snow":null,"days_freezing":0.3,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"October","month_number":10,"avg_temp_f":44.6,"avg_high_f":51.6,"avg_low_f":37.6,"precip_in":2.98,"snow_in":null,"heating_degree_days":632.3,"cooling_degree_days":0,"days_with_precip":12,"days_with_snow":null,"days_freezing":8,"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":32.7,"avg_high_f":39.4,"avg_low_f":26.1,"precip_in":1.93,"snow_in":null,"heating_degree_days":967.6,"cooling_degree_days":0,"days_with_precip":10.1,"days_with_snow":null,"days_freezing":21.4,"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":21.6,"avg_high_f":29.1,"avg_low_f":14.1,"precip_in":1.48,"snow_in":null,"heating_degree_days":1345.4,"cooling_degree_days":0,"days_with_precip":11,"days_with_snow":null,"days_freezing":29,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}