{"metadata":{"title":"Ben Lomond, CA Monthly Climate Normals","page_url":"https://plainclimate.com/city/ben-lomond-ca","primary_station_id":"USC00040673","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, \"Ben Lomond, CA Climate Normals\". https://plainclimate.com/city/ben-lomond-ca","row_count":12},"annual_summary":{"city_slug":"ben-lomond-ca","ann_tavg":60.4,"ann_tmax":77.2,"ann_tmin":43.7,"ann_prcp":49.63,"ann_snow":0.1,"ann_htdd":2285.6,"ann_cldd":641.1,"frost_first":"11/11","frost_last":"03/25","growing_season":231,"warmest_month":8,"coldest_month":12,"wettest_month":12,"driest_month":7,"snowiest_month":2,"comfort_score":93},"data":[{"month":"January","month_number":1,"avg_temp_f":51,"avg_high_f":64.6,"avg_low_f":37.4,"precip_in":10.42,"snow_in":0,"heating_degree_days":434,"cooling_degree_days":0,"days_with_precip":12.2,"days_with_snow":0,"days_freezing":9.3,"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":52.9,"avg_high_f":66.9,"avg_low_f":38.9,"precip_in":9.68,"snow_in":0.1,"heating_degree_days":339.1,"cooling_degree_days":0.3,"days_with_precip":12.1,"days_with_snow":0.1,"days_freezing":5.7,"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":55.6,"avg_high_f":70.6,"avg_low_f":40.5,"precip_in":7,"snow_in":0,"heating_degree_days":294.3,"cooling_degree_days":1.4,"days_with_precip":10,"days_with_snow":0,"days_freezing":3.7,"days_90f_plus":0.5,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"April","month_number":4,"avg_temp_f":58.5,"avg_high_f":75,"avg_low_f":41.9,"precip_in":3.28,"snow_in":0,"heating_degree_days":206.9,"cooling_degree_days":10.5,"days_with_precip":6.8,"days_with_snow":0,"days_freezing":1.1,"days_90f_plus":1.9,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"May","month_number":5,"avg_temp_f":62.6,"avg_high_f":79.6,"avg_low_f":45.7,"precip_in":1.24,"snow_in":0,"heating_degree_days":112.1,"cooling_degree_days":39.2,"days_with_precip":4.1,"days_with_snow":0,"days_freezing":0.1,"days_90f_plus":3.8,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"June","month_number":6,"avg_temp_f":67.1,"avg_high_f":85.5,"avg_low_f":48.6,"precip_in":0.24,"snow_in":0,"heating_degree_days":30,"cooling_degree_days":91.4,"days_with_precip":1.5,"days_with_snow":0,"days_freezing":0.1,"days_90f_plus":7.5,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":69.6,"avg_high_f":87.9,"avg_low_f":51.2,"precip_in":0.01,"snow_in":0,"heating_degree_days":6.1,"cooling_degree_days":147.1,"days_with_precip":0.3,"days_with_snow":0,"days_freezing":0,"days_90f_plus":9.7,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":70.2,"avg_high_f":89.5,"avg_low_f":51,"precip_in":0.04,"snow_in":0,"heating_degree_days":3.7,"cooling_degree_days":166.4,"days_with_precip":0.6,"days_with_snow":0,"days_freezing":0,"days_90f_plus":11.6,"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":88.6,"avg_low_f":48.9,"precip_in":0.12,"snow_in":0,"heating_degree_days":17.2,"cooling_degree_days":129.6,"days_with_precip":1.1,"days_with_snow":0,"days_freezing":0.1,"days_90f_plus":11.4,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"October","month_number":10,"avg_temp_f":63.6,"avg_high_f":83,"avg_low_f":44.2,"precip_in":2.17,"snow_in":0,"heating_degree_days":95.1,"cooling_degree_days":51.6,"days_with_precip":3.6,"days_with_snow":0,"days_freezing":0.5,"days_90f_plus":6.6,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"November","month_number":11,"avg_temp_f":55.4,"avg_high_f":71.3,"avg_low_f":39.6,"precip_in":5,"snow_in":0,"heating_degree_days":290.1,"cooling_degree_days":3.7,"days_with_precip":7.6,"days_with_snow":0,"days_freezing":4.9,"days_90f_plus":0.6,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"December","month_number":12,"avg_temp_f":50.2,"avg_high_f":63.7,"avg_low_f":36.8,"precip_in":10.43,"snow_in":0,"heating_degree_days":457.1,"cooling_degree_days":0,"days_with_precip":12.3,"days_with_snow":0,"days_freezing":11.1,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}