{"metadata":{"title":"Delta (6 mi N), AK Monthly Climate Normals","page_url":"https://plainclimate.com/city/delta-6-mi-n-ak","primary_station_id":"USC00502339","source":"NOAA 1991-2020 U.S. Climate Normals","source_url":"https://www.ncei.noaa.gov/products/land-based-station/us-climate-normals","vintage":"2026-10-08","license":"CC0 1.0","license_url":"https://creativecommons.org/publicdomain/zero/1.0/","citation":"PlainClimate, \"Delta (6 mi N), AK Climate Normals\". https://plainclimate.com/city/delta-6-mi-n-ak","row_count":12},"annual_summary":{"city_slug":"delta-6-mi-n-ak","ann_tavg":25.9,"ann_tmax":37.4,"ann_tmin":14.4,"ann_prcp":12.62,"ann_snow":42.8,"ann_htdd":14252.8,"ann_cldd":14.5,"frost_first":"-9999.0","frost_last":"-9999.0","growing_season":63,"warmest_month":7,"coldest_month":1,"wettest_month":7,"driest_month":4,"snowiest_month":11},"data":[{"month":"January","month_number":1,"avg_temp_f":-6.5,"avg_high_f":2.9,"avg_low_f":-15.8,"precip_in":0.41,"snow_in":6.2,"heating_degree_days":2214.7,"cooling_degree_days":0,"days_with_precip":7.4,"days_with_snow":7.9,"days_freezing":31,"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":1.8,"avg_high_f":12.9,"avg_low_f":-9.4,"precip_in":0.33,"snow_in":4.7,"heating_degree_days":1771.1,"cooling_degree_days":0,"days_with_precip":5.7,"days_with_snow":6.1,"days_freezing":28,"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":8.9,"avg_high_f":23.6,"avg_low_f":-5.8,"precip_in":0.32,"snow_in":3.6,"heating_degree_days":1738.9,"cooling_degree_days":0,"days_with_precip":5.1,"days_with_snow":5.5,"days_freezing":30.9,"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":30.5,"avg_high_f":43.8,"avg_low_f":17.2,"precip_in":0.28,"snow_in":2.5,"heating_degree_days":1035,"cooling_degree_days":0,"days_with_precip":3.8,"days_with_snow":2.7,"days_freezing":29.2,"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":45.6,"avg_high_f":59.5,"avg_low_f":31.7,"precip_in":0.99,"snow_in":1.2,"heating_degree_days":601.5,"cooling_degree_days":0.1,"days_with_precip":7.7,"days_with_snow":0.8,"days_freezing":18,"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":55.7,"avg_high_f":68.8,"avg_low_f":42.6,"precip_in":2.35,"snow_in":0,"heating_degree_days":285.8,"cooling_degree_days":6.7,"days_with_precip":12.9,"days_with_snow":0,"days_freezing":2.5,"days_90f_plus":0.1,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":58.1,"avg_high_f":70,"avg_low_f":46.1,"precip_in":2.81,"snow_in":0,"heating_degree_days":221.9,"cooling_degree_days":6.4,"days_with_precip":15.4,"days_with_snow":0,"days_freezing":0.5,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":52.3,"avg_high_f":64.1,"avg_low_f":40.5,"precip_in":2.12,"snow_in":0,"heating_degree_days":395,"cooling_degree_days":1.3,"days_with_precip":14.8,"days_with_snow":0,"days_freezing":5.9,"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":41,"avg_high_f":52.8,"avg_low_f":29.1,"precip_in":1.25,"snow_in":1.5,"heating_degree_days":721.5,"cooling_degree_days":0,"days_with_precip":10.2,"days_with_snow":1,"days_freezing":19.2,"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":23,"avg_high_f":32.4,"avg_low_f":13.6,"precip_in":0.72,"snow_in":7.4,"heating_degree_days":1302,"cooling_degree_days":0,"days_with_precip":8.5,"days_with_snow":7.2,"days_freezing":29.2,"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":3.4,"avg_high_f":12.1,"avg_low_f":-5.3,"precip_in":0.58,"snow_in":8.9,"heating_degree_days":1847.9,"cooling_degree_days":0,"days_with_precip":8.2,"days_with_snow":8.6,"days_freezing":30,"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":-3.3,"avg_high_f":5.5,"avg_low_f":-12.1,"precip_in":0.46,"snow_in":6.8,"heating_degree_days":2117.3,"cooling_degree_days":0,"days_with_precip":7.2,"days_with_snow":8,"days_freezing":31,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}