{"metadata":{"title":"Richardson GR State Park, CA Monthly Climate Normals","page_url":"https://plainclimate.com/city/richardson-gr-state-park-ca","primary_station_id":"USC00047404","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 GR State Park, CA Climate Normals\". https://plainclimate.com/city/richardson-gr-state-park-ca","row_count":12},"annual_summary":{"city_slug":"richardson-gr-state-park-ca","ann_tavg":56.1,"ann_tmax":66.9,"ann_tmin":45.2,"ann_prcp":65.44,"ann_snow":0.2,"ann_htdd":3733.8,"ann_cldd":493.6,"frost_first":"12/01","frost_last":"03/10","growing_season":266,"warmest_month":8,"coldest_month":12,"wettest_month":12,"driest_month":7,"snowiest_month":12,"comfort_score":67},"data":[{"month":"January","month_number":1,"avg_temp_f":44.4,"avg_high_f":49.9,"avg_low_f":39,"precip_in":12.73,"snow_in":0,"heating_degree_days":637,"cooling_degree_days":0,"days_with_precip":16.6,"days_with_snow":0,"days_freezing":5.4,"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":46.1,"avg_high_f":52.6,"avg_low_f":39.7,"precip_in":11.32,"snow_in":0,"heating_degree_days":527.8,"cooling_degree_days":0,"days_with_precip":14,"days_with_snow":0,"days_freezing":3.4,"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":49.6,"avg_high_f":58.7,"avg_low_f":40.5,"precip_in":9.71,"snow_in":0,"heating_degree_days":477.4,"cooling_degree_days":0,"days_with_precip":11.5,"days_with_snow":0,"days_freezing":2.1,"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":53.3,"avg_high_f":64.3,"avg_low_f":42.2,"precip_in":5.09,"snow_in":0,"heating_degree_days":353.7,"cooling_degree_days":1.3,"days_with_precip":9,"days_with_snow":0,"days_freezing":0.9,"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":59.4,"avg_high_f":71.5,"avg_low_f":47.2,"precip_in":1.92,"snow_in":0,"heating_degree_days":195.2,"cooling_degree_days":20.1,"days_with_precip":5.6,"days_with_snow":0,"days_freezing":0.8,"days_90f_plus":1.1,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"June","month_number":6,"avg_temp_f":64.1,"avg_high_f":77.2,"avg_low_f":51,"precip_in":0.78,"snow_in":0,"heating_degree_days":76.3,"cooling_degree_days":49.2,"days_with_precip":2.1,"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":69.9,"avg_high_f":85.7,"avg_low_f":54,"precip_in":0.01,"snow_in":0,"heating_degree_days":9.3,"cooling_degree_days":159.6,"days_with_precip":0.2,"days_with_snow":0,"days_freezing":0.1,"days_90f_plus":9.5,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":70.3,"avg_high_f":86.5,"avg_low_f":54.1,"precip_in":0.04,"snow_in":0,"heating_degree_days":6.6,"cooling_degree_days":170.8,"days_with_precip":0.4,"days_with_snow":0,"days_freezing":0,"days_90f_plus":9.4,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"September","month_number":9,"avg_temp_f":66.5,"avg_high_f":83,"avg_low_f":50,"precip_in":0.41,"snow_in":0,"heating_degree_days":40.6,"cooling_degree_days":85.5,"days_with_precip":0.7,"days_with_snow":0,"days_freezing":0,"days_90f_plus":7.3,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"October","month_number":10,"avg_temp_f":57.4,"avg_high_f":69.6,"avg_low_f":45.2,"precip_in":2.74,"snow_in":0,"heating_degree_days":242.6,"cooling_degree_days":7,"days_with_precip":4.3,"days_with_snow":0,"days_freezing":0,"days_90f_plus":0.5,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"November","month_number":11,"avg_temp_f":48.2,"avg_high_f":55.3,"avg_low_f":41,"precip_in":6.66,"snow_in":0,"heating_degree_days":505.5,"cooling_degree_days":0,"days_with_precip":12,"days_with_snow":0,"days_freezing":2.7,"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":43.7,"avg_high_f":48.9,"avg_low_f":38.4,"precip_in":14.03,"snow_in":0.2,"heating_degree_days":661.8,"cooling_degree_days":0,"days_with_precip":15.1,"days_with_snow":0,"days_freezing":6.3,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}