{"metadata":{"title":"Richardson, TX Monthly Climate Normals","page_url":"https://plainclimate.com/city/richardson-tx","primary_station_id":"USC00417588","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, \"Richardson, TX Climate Normals\". https://plainclimate.com/city/richardson-tx","row_count":12},"annual_summary":{"city_slug":"richardson-tx","ann_tavg":65.8,"ann_tmax":75.8,"ann_tmin":55.8,"ann_prcp":41.91,"ann_snow":null,"ann_htdd":2294,"ann_cldd":2612.3,"frost_first":"11/21","frost_last":"03/07","growing_season":259,"warmest_month":7,"coldest_month":1,"wettest_month":10,"driest_month":7,"snowiest_month":null,"comfort_score":96},"data":[{"month":"January","month_number":1,"avg_temp_f":45.8,"avg_high_f":55.9,"avg_low_f":35.8,"precip_in":2.78,"snow_in":null,"heating_degree_days":595,"cooling_degree_days":1.5,"days_with_precip":8.1,"days_with_snow":null,"days_freezing":12.2,"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":49.8,"avg_high_f":60,"avg_low_f":39.5,"precip_in":3.37,"snow_in":null,"heating_degree_days":432.9,"cooling_degree_days":6,"days_with_precip":8,"days_with_snow":null,"days_freezing":7.7,"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":58.1,"avg_high_f":68.6,"avg_low_f":47.5,"precip_in":3.56,"snow_in":null,"heating_degree_days":246.7,"cooling_degree_days":31.2,"days_with_precip":8.6,"days_with_snow":null,"days_freezing":2.3,"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":65.1,"avg_high_f":75.4,"avg_low_f":54.8,"precip_in":3.52,"snow_in":null,"heating_degree_days":89.6,"cooling_degree_days":92.7,"days_with_precip":7.5,"days_with_snow":null,"days_freezing":0.1,"days_90f_plus":0.4,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"May","month_number":5,"avg_temp_f":73.1,"avg_high_f":82.6,"avg_low_f":63.6,"precip_in":5.18,"snow_in":null,"heating_degree_days":13.1,"cooling_degree_days":264.1,"days_with_precip":9.5,"days_with_snow":null,"days_freezing":0,"days_90f_plus":4.2,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"June","month_number":6,"avg_temp_f":80.6,"avg_high_f":90,"avg_low_f":71.2,"precip_in":3.83,"snow_in":null,"heating_degree_days":0,"cooling_degree_days":467.9,"days_with_precip":6.7,"days_with_snow":null,"days_freezing":0,"days_90f_plus":19.8,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":84.8,"avg_high_f":94.3,"avg_low_f":75.3,"precip_in":2.22,"snow_in":null,"heating_degree_days":0,"cooling_degree_days":613.7,"days_with_precip":4.9,"days_with_snow":null,"days_freezing":0,"days_90f_plus":26.9,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":84.7,"avg_high_f":94.8,"avg_low_f":74.5,"precip_in":2.48,"snow_in":null,"heating_degree_days":0,"cooling_degree_days":608.8,"days_with_precip":5.4,"days_with_snow":null,"days_freezing":0,"days_90f_plus":26.6,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"September","month_number":9,"avg_temp_f":77.2,"avg_high_f":87.3,"avg_low_f":67.1,"precip_in":3.3,"snow_in":null,"heating_degree_days":2.6,"cooling_degree_days":368.6,"days_with_precip":5.9,"days_with_snow":null,"days_freezing":0,"days_90f_plus":13.3,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"October","month_number":10,"avg_temp_f":66.8,"avg_high_f":77.5,"avg_low_f":56.1,"precip_in":5.26,"snow_in":null,"heating_degree_days":77.9,"cooling_degree_days":133.7,"days_with_precip":7.8,"days_with_snow":null,"days_freezing":0.1,"days_90f_plus":2.1,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"November","month_number":11,"avg_temp_f":55.9,"avg_high_f":66.1,"avg_low_f":45.6,"precip_in":3.04,"snow_in":null,"heating_degree_days":294.5,"cooling_degree_days":20.1,"days_with_precip":6.8,"days_with_snow":null,"days_freezing":2.7,"days_90f_plus":0.1,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"December","month_number":12,"avg_temp_f":47.6,"avg_high_f":57.3,"avg_low_f":38,"precip_in":3.37,"snow_in":null,"heating_degree_days":541.8,"cooling_degree_days":4.2,"days_with_precip":7.6,"days_with_snow":null,"days_freezing":9.7,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}