{"metadata":{"title":"Tully Lake, MA Monthly Climate Normals","page_url":"https://plainclimate.com/city/tully-lake-ma","primary_station_id":"USC00198573","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, \"Tully Lake, MA Climate Normals\". https://plainclimate.com/city/tully-lake-ma","row_count":12},"annual_summary":{"city_slug":"tully-lake-ma","ann_tavg":49.1,"ann_tmax":59.7,"ann_tmin":38.4,"ann_prcp":47.45,"ann_snow":52.2,"ann_htdd":6528.5,"ann_cldd":765.7,"frost_first":"10/17","frost_last":"04/25","growing_season":175,"warmest_month":7,"coldest_month":1,"wettest_month":10,"driest_month":2,"snowiest_month":1,"comfort_score":54},"data":[{"month":"January","month_number":1,"avg_temp_f":23.6,"avg_high_f":33.1,"avg_low_f":14,"precip_in":3.56,"snow_in":14.3,"heating_degree_days":1284.7,"cooling_degree_days":0,"days_with_precip":11.4,"days_with_snow":5.7,"days_freezing":29.3,"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":25.8,"avg_high_f":36.6,"avg_low_f":15,"precip_in":2.94,"snow_in":12.5,"heating_degree_days":1097.6,"cooling_degree_days":0,"days_with_precip":10.1,"days_with_snow":5.8,"days_freezing":26.9,"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":34.2,"avg_high_f":44.8,"avg_low_f":23.5,"precip_in":3.9,"snow_in":9.4,"heating_degree_days":956.4,"cooling_degree_days":0.1,"days_with_precip":10.4,"days_with_snow":3.7,"days_freezing":27.5,"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":47.2,"avg_high_f":59,"avg_low_f":35.5,"precip_in":3.55,"snow_in":3,"heating_degree_days":536.4,"cooling_degree_days":3.9,"days_with_precip":11.6,"days_with_snow":1,"days_freezing":15.7,"days_90f_plus":0.2,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"May","month_number":5,"avg_temp_f":59.2,"avg_high_f":71.1,"avg_low_f":47.3,"precip_in":3.51,"snow_in":0,"heating_degree_days":217.8,"cooling_degree_days":38,"days_with_precip":13.1,"days_with_snow":0,"days_freezing":1.6,"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":68.3,"avg_high_f":79.6,"avg_low_f":57.1,"precip_in":4.47,"snow_in":0,"heating_degree_days":43.8,"cooling_degree_days":144.3,"days_with_precip":12.7,"days_with_snow":0,"days_freezing":0,"days_90f_plus":3.7,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":73.8,"avg_high_f":85.1,"avg_low_f":62.4,"precip_in":4.59,"snow_in":0,"heating_degree_days":3.5,"cooling_degree_days":274.6,"days_with_precip":11.4,"days_with_snow":0,"days_freezing":0,"days_90f_plus":7.2,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":71.8,"avg_high_f":83.4,"avg_low_f":60.2,"precip_in":4.27,"snow_in":0,"heating_degree_days":10.8,"cooling_degree_days":221.5,"days_with_precip":10.6,"days_with_snow":0,"days_freezing":0,"days_90f_plus":4.9,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"September","month_number":9,"avg_temp_f":63.8,"avg_high_f":75.3,"avg_low_f":52.2,"precip_in":4.34,"snow_in":0,"heating_degree_days":115.2,"cooling_degree_days":77.7,"days_with_precip":9.6,"days_with_snow":0,"days_freezing":0.4,"days_90f_plus":0.8,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"October","month_number":10,"avg_temp_f":51.2,"avg_high_f":61.7,"avg_low_f":40.8,"precip_in":4.68,"snow_in":0,"heating_degree_days":431.8,"cooling_degree_days":5.6,"days_with_precip":11.2,"days_with_snow":0.2,"days_freezing":9.2,"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":40.2,"avg_high_f":49,"avg_low_f":31.4,"precip_in":3.59,"snow_in":1.2,"heating_degree_days":744.1,"cooling_degree_days":0.1,"days_with_precip":10,"days_with_snow":1.2,"days_freezing":20.6,"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":29.9,"avg_high_f":38.3,"avg_low_f":21.6,"precip_in":4.05,"snow_in":11.8,"heating_degree_days":1086.5,"cooling_degree_days":0,"days_with_precip":11.1,"days_with_snow":4.4,"days_freezing":28.1,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}