{"metadata":{"title":"Spirit Lake, IA Monthly Climate Normals","page_url":"https://plainclimate.com/city/spirit-lake-ia","primary_station_id":"USC00137859","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, \"Spirit Lake, IA Climate Normals\". https://plainclimate.com/city/spirit-lake-ia","row_count":12},"annual_summary":{"city_slug":"spirit-lake-ia","ann_tavg":45.7,"ann_tmax":55.2,"ann_tmin":36.2,"ann_prcp":29.05,"ann_snow":41.5,"ann_htdd":7677.8,"ann_cldd":682.1,"frost_first":"10/11","frost_last":"04/28","growing_season":166,"warmest_month":7,"coldest_month":1,"wettest_month":6,"driest_month":1,"snowiest_month":1,"comfort_score":59},"data":[{"month":"January","month_number":1,"avg_temp_f":15.6,"avg_high_f":24,"avg_low_f":7.1,"precip_in":0.55,"snow_in":9.5,"heating_degree_days":1532.8,"cooling_degree_days":0,"days_with_precip":4.6,"days_with_snow":3.4,"days_freezing":30.6,"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":19.6,"avg_high_f":28.3,"avg_low_f":11,"precip_in":0.63,"snow_in":8.2,"heating_degree_days":1269.7,"cooling_degree_days":0,"days_with_precip":4.8,"days_with_snow":3.6,"days_freezing":27,"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":32.4,"avg_high_f":41.6,"avg_low_f":23.2,"precip_in":1.43,"snow_in":6,"heating_degree_days":1010.8,"cooling_degree_days":0.1,"days_with_precip":5.5,"days_with_snow":2.2,"days_freezing":23.9,"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":45.5,"avg_high_f":55.9,"avg_low_f":35.1,"precip_in":2.99,"snow_in":5.1,"heating_degree_days":587.4,"cooling_degree_days":2.4,"days_with_precip":8.7,"days_with_snow":1,"days_freezing":9.5,"days_90f_plus":0.1,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"May","month_number":5,"avg_temp_f":57.9,"avg_high_f":68.2,"avg_low_f":47.6,"precip_in":4.13,"snow_in":0.1,"heating_degree_days":252.8,"cooling_degree_days":32.7,"days_with_precip":10.2,"days_with_snow":0,"days_freezing":0.9,"days_90f_plus":0.5,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"June","month_number":6,"avg_temp_f":68.7,"avg_high_f":78.9,"avg_low_f":58.6,"precip_in":4.77,"snow_in":0,"heating_degree_days":39.4,"cooling_degree_days":151.8,"days_with_precip":9.3,"days_with_snow":0,"days_freezing":0,"days_90f_plus":2.4,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":72.7,"avg_high_f":82.8,"avg_low_f":62.6,"precip_in":3.53,"snow_in":0,"heating_degree_days":7.4,"cooling_degree_days":246,"days_with_precip":7.3,"days_with_snow":0,"days_freezing":0,"days_90f_plus":5,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":70.1,"avg_high_f":80.1,"avg_low_f":60.2,"precip_in":3.69,"snow_in":0,"heating_degree_days":16,"cooling_degree_days":175.6,"days_with_precip":7.5,"days_with_snow":0,"days_freezing":0,"days_90f_plus":2.2,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"September","month_number":9,"avg_temp_f":62.6,"avg_high_f":73.1,"avg_low_f":52.1,"precip_in":3.03,"snow_in":0,"heating_degree_days":139.5,"cooling_degree_days":67.3,"days_with_precip":6,"days_with_snow":0,"days_freezing":0,"days_90f_plus":1.1,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"October","month_number":10,"avg_temp_f":48.8,"avg_high_f":59,"avg_low_f":38.6,"precip_in":2.09,"snow_in":0.4,"heating_degree_days":508.5,"cooling_degree_days":6.3,"days_with_precip":6.6,"days_with_snow":0.2,"days_freezing":7.1,"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":33.6,"avg_high_f":42.3,"avg_low_f":24.9,"precip_in":1.39,"snow_in":4.2,"heating_degree_days":942,"cooling_degree_days":0,"days_with_precip":4,"days_with_snow":1.3,"days_freezing":20.4,"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":20.8,"avg_high_f":28.6,"avg_low_f":12.9,"precip_in":0.82,"snow_in":8,"heating_degree_days":1371.6,"cooling_degree_days":0,"days_with_precip":4.7,"days_with_snow":3.1,"days_freezing":29.8,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}