{"metadata":{"title":"Kennewick, WA Monthly Climate Normals","page_url":"https://plainclimate.com/city/kennewick-wa","primary_station_id":"USC00454154","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, \"Kennewick, WA Climate Normals\". https://plainclimate.com/city/kennewick-wa","row_count":12},"annual_summary":{"city_slug":"kennewick-wa","ann_tavg":55,"ann_tmax":66,"ann_tmin":44.1,"ann_prcp":7.87,"ann_snow":null,"ann_htdd":4618.6,"ann_cldd":1020.4,"frost_first":"10/30","frost_last":"03/28","growing_season":216,"warmest_month":7,"coldest_month":1,"wettest_month":1,"driest_month":8,"snowiest_month":null,"comfort_score":56},"data":[{"month":"January","month_number":1,"avg_temp_f":35.5,"avg_high_f":41.7,"avg_low_f":29.2,"precip_in":1.13,"snow_in":null,"heating_degree_days":916,"cooling_degree_days":0,"days_with_precip":11.1,"days_with_snow":null,"days_freezing":18.4,"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":39.5,"avg_high_f":48.1,"avg_low_f":30.9,"precip_in":0.79,"snow_in":null,"heating_degree_days":713.9,"cooling_degree_days":0,"days_with_precip":8.1,"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":"March","month_number":3,"avg_temp_f":47,"avg_high_f":58.1,"avg_low_f":35.9,"precip_in":0.66,"snow_in":null,"heating_degree_days":558.1,"cooling_degree_days":0,"days_with_precip":7.8,"days_with_snow":null,"days_freezing":7.9,"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":54.3,"avg_high_f":66.3,"avg_low_f":42.4,"precip_in":0.61,"snow_in":null,"heating_degree_days":322.6,"cooling_degree_days":3.1,"days_with_precip":6.9,"days_with_snow":null,"days_freezing":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":62.7,"avg_high_f":75.3,"avg_low_f":50.1,"precip_in":0.84,"snow_in":null,"heating_degree_days":124.6,"cooling_degree_days":53.2,"days_with_precip":6.3,"days_with_snow":null,"days_freezing":0,"days_90f_plus":2.3,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"June","month_number":6,"avg_temp_f":69.2,"avg_high_f":82,"avg_low_f":56.4,"precip_in":0.58,"snow_in":null,"heating_degree_days":25,"cooling_degree_days":151,"days_with_precip":4.7,"days_with_snow":null,"days_freezing":0,"days_90f_plus":5.6,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":76.8,"avg_high_f":91.3,"avg_low_f":62.3,"precip_in":0.21,"snow_in":null,"heating_degree_days":1.2,"cooling_degree_days":366.8,"days_with_precip":2.1,"days_with_snow":null,"days_freezing":0,"days_90f_plus":18.8,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":75.8,"avg_high_f":90.3,"avg_low_f":61.3,"precip_in":0.17,"snow_in":null,"heating_degree_days":2.2,"cooling_degree_days":336.8,"days_with_precip":1.9,"days_with_snow":null,"days_freezing":0,"days_90f_plus":17.4,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"September","month_number":9,"avg_temp_f":66.8,"avg_high_f":80.5,"avg_low_f":53.2,"precip_in":0.26,"snow_in":null,"heating_degree_days":49.1,"cooling_degree_days":104.5,"days_with_precip":2.6,"days_with_snow":null,"days_freezing":0,"days_90f_plus":3.5,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"October","month_number":10,"avg_temp_f":54.5,"avg_high_f":65.9,"avg_low_f":43.1,"precip_in":0.67,"snow_in":null,"heating_degree_days":330.2,"cooling_degree_days":4.7,"days_with_precip":6.3,"days_with_snow":null,"days_freezing":1.9,"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":42.9,"avg_high_f":50.9,"avg_low_f":34.9,"precip_in":0.87,"snow_in":null,"heating_degree_days":663.1,"cooling_degree_days":0.2,"days_with_precip":8.9,"days_with_snow":null,"days_freezing":11,"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":35.6,"avg_high_f":41.5,"avg_low_f":29.6,"precip_in":1.08,"snow_in":null,"heating_degree_days":912.8,"cooling_degree_days":0,"days_with_precip":10.5,"days_with_snow":null,"days_freezing":19.2,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}