{"metadata":{"title":"Gilroy, CA Monthly Climate Normals","page_url":"https://plainclimate.com/city/gilroy-ca","primary_station_id":"USC00043417","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, \"Gilroy, CA Climate Normals\". https://plainclimate.com/city/gilroy-ca","row_count":12},"annual_summary":{"city_slug":"gilroy-ca","ann_tavg":60.2,"ann_tmax":74.3,"ann_tmin":46.1,"ann_prcp":19.77,"ann_snow":0,"ann_htdd":2424.2,"ann_cldd":694.1,"frost_first":"11/27","frost_last":"02/24","growing_season":276,"warmest_month":8,"coldest_month":12,"wettest_month":1,"driest_month":7,"snowiest_month":null,"comfort_score":87},"data":[{"month":"January","month_number":1,"avg_temp_f":49.4,"avg_high_f":60.7,"avg_low_f":38.1,"precip_in":4.55,"snow_in":0,"heating_degree_days":483.6,"cooling_degree_days":0,"days_with_precip":9.8,"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":52.2,"avg_high_f":64,"avg_low_f":40.4,"precip_in":4.27,"snow_in":0,"heating_degree_days":358.5,"cooling_degree_days":0.1,"days_with_precip":9.8,"days_with_snow":0,"days_freezing":1.7,"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":55.3,"avg_high_f":68.1,"avg_low_f":42.6,"precip_in":2.59,"snow_in":0,"heating_degree_days":300.5,"cooling_degree_days":1.3,"days_with_precip":7.8,"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":"April","month_number":4,"avg_temp_f":58.2,"avg_high_f":71.9,"avg_low_f":44.5,"precip_in":1.3,"snow_in":0,"heating_degree_days":214.1,"cooling_degree_days":10.1,"days_with_precip":5.1,"days_with_snow":0,"days_freezing":0.1,"days_90f_plus":1,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"May","month_number":5,"avg_temp_f":63.1,"avg_high_f":77.3,"avg_low_f":49,"precip_in":0.56,"snow_in":0,"heating_degree_days":103.9,"cooling_degree_days":46.6,"days_with_precip":2.5,"days_with_snow":0,"days_freezing":0,"days_90f_plus":3.3,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"June","month_number":6,"avg_temp_f":67.2,"avg_high_f":82.8,"avg_low_f":51.6,"precip_in":0.15,"snow_in":0,"heating_degree_days":30.9,"cooling_degree_days":96.9,"days_with_precip":0.6,"days_with_snow":0,"days_freezing":0,"days_90f_plus":6.9,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":70.6,"avg_high_f":87.2,"avg_low_f":54,"precip_in":0,"snow_in":0,"heating_degree_days":3.3,"cooling_degree_days":176.9,"days_with_precip":0.3,"days_with_snow":0,"days_freezing":0,"days_90f_plus":11.3,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":70.8,"avg_high_f":87.2,"avg_low_f":54.4,"precip_in":0.03,"snow_in":0,"heating_degree_days":2.1,"cooling_degree_days":181.9,"days_with_precip":0.3,"days_with_snow":0,"days_freezing":0,"days_90f_plus":11.7,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"September","month_number":9,"avg_temp_f":68.7,"avg_high_f":84.9,"avg_low_f":52.5,"precip_in":0.04,"snow_in":0,"heating_degree_days":19.8,"cooling_degree_days":130.8,"days_with_precip":0.6,"days_with_snow":0,"days_freezing":0,"days_90f_plus":9.5,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"October","month_number":10,"avg_temp_f":63.4,"avg_high_f":78.8,"avg_low_f":47.9,"precip_in":0.85,"snow_in":0,"heating_degree_days":98.4,"cooling_degree_days":47.1,"days_with_precip":2.8,"days_with_snow":0,"days_freezing":0,"days_90f_plus":4.5,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"November","month_number":11,"avg_temp_f":55,"avg_high_f":68.3,"avg_low_f":41.6,"precip_in":1.74,"snow_in":0,"heating_degree_days":303.8,"cooling_degree_days":2.3,"days_with_precip":6.1,"days_with_snow":0,"days_freezing":1.9,"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":48.7,"avg_high_f":60.4,"avg_low_f":37,"precip_in":3.69,"snow_in":0,"heating_degree_days":505.2,"cooling_degree_days":0,"days_with_precip":9.3,"days_with_snow":0,"days_freezing":6.5,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}