{"metadata":{"title":"Hennessey, OK Monthly Climate Normals","page_url":"https://plainclimate.com/city/hennessey-ok","primary_station_id":"USC00344055","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, \"Hennessey, OK Climate Normals\". https://plainclimate.com/city/hennessey-ok","row_count":12},"annual_summary":{"city_slug":"hennessey-ok","ann_tavg":58.7,"ann_tmax":71,"ann_tmin":46.3,"ann_prcp":33.45,"ann_snow":9.1,"ann_htdd":4145.8,"ann_cldd":1867.6,"frost_first":"10/30","frost_last":"04/14","growing_season":199,"warmest_month":7,"coldest_month":1,"wettest_month":5,"driest_month":1,"snowiest_month":1,"comfort_score":78},"data":[{"month":"January","month_number":1,"avg_temp_f":35.5,"avg_high_f":47.3,"avg_low_f":23.6,"precip_in":1.25,"snow_in":3.1,"heating_degree_days":916,"cooling_degree_days":0,"days_with_precip":4.3,"days_with_snow":1,"days_freezing":25.8,"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":39,"avg_high_f":51.3,"avg_low_f":26.7,"precip_in":1.44,"snow_in":1.6,"heating_degree_days":728,"cooling_degree_days":0.2,"days_with_precip":4.9,"days_with_snow":0.8,"days_freezing":19.2,"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":47.8,"avg_high_f":60.7,"avg_low_f":35,"precip_in":2.51,"snow_in":1.2,"heating_degree_days":535,"cooling_degree_days":3.3,"days_with_precip":6.9,"days_with_snow":0.6,"days_freezing":10.5,"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":56.7,"avg_high_f":69.8,"avg_low_f":43.7,"precip_in":3.53,"snow_in":0,"heating_degree_days":268.7,"cooling_degree_days":21.3,"days_with_precip":6.7,"days_with_snow":0,"days_freezing":2.8,"days_90f_plus":0.5,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"May","month_number":5,"avg_temp_f":67.2,"avg_high_f":78.9,"avg_low_f":55.4,"precip_in":5.03,"snow_in":0,"heating_degree_days":68.3,"cooling_degree_days":134.9,"days_with_precip":8.8,"days_with_snow":0,"days_freezing":0,"days_90f_plus":4,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"June","month_number":6,"avg_temp_f":77.6,"avg_high_f":89.7,"avg_low_f":65.4,"precip_in":4.48,"snow_in":0,"heating_degree_days":2.1,"cooling_degree_days":378.5,"days_with_precip":8,"days_with_snow":0,"days_freezing":0,"days_90f_plus":16.3,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":82.4,"avg_high_f":95.1,"avg_low_f":69.8,"precip_in":3,"snow_in":0,"heating_degree_days":0,"cooling_degree_days":540.9,"days_with_precip":5.9,"days_with_snow":0,"days_freezing":0,"days_90f_plus":24.9,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":80.7,"avg_high_f":93.5,"avg_low_f":67.8,"precip_in":3.49,"snow_in":0,"heating_degree_days":0.3,"cooling_degree_days":485.3,"days_with_precip":6.4,"days_with_snow":0,"days_freezing":0,"days_90f_plus":22.7,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"September","month_number":9,"avg_temp_f":72.7,"avg_high_f":85.3,"avg_low_f":60.1,"precip_in":2.26,"snow_in":0,"heating_degree_days":22.4,"cooling_degree_days":253.3,"days_with_precip":5.1,"days_with_snow":0,"days_freezing":0,"days_90f_plus":10,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"October","month_number":10,"avg_temp_f":60,"avg_high_f":72.7,"avg_low_f":47.3,"precip_in":2.93,"snow_in":0,"heating_degree_days":202.9,"cooling_degree_days":47.9,"days_with_precip":5.8,"days_with_snow":0,"days_freezing":1.1,"days_90f_plus":1.4,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"November","month_number":11,"avg_temp_f":47,"avg_high_f":59.1,"avg_low_f":34.9,"precip_in":1.83,"snow_in":0.4,"heating_degree_days":541.9,"cooling_degree_days":1.9,"days_with_precip":4.9,"days_with_snow":0.3,"days_freezing":11.2,"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":37.2,"avg_high_f":48.4,"avg_low_f":26.1,"precip_in":1.7,"snow_in":2.8,"heating_degree_days":860.1,"cooling_degree_days":0.1,"days_with_precip":5.5,"days_with_snow":1.2,"days_freezing":23.1,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}