{"metadata":{"title":"Knoxville Mcghee Tyson, TN Monthly Climate Normals","page_url":"https://plainclimate.com/city/knoxville-mcghee-tyson-tn","primary_station_id":"USW00013891","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, \"Knoxville Mcghee Tyson, TN Climate Normals\". https://plainclimate.com/city/knoxville-mcghee-tyson-tn","row_count":12},"annual_summary":{"city_slug":"knoxville-mcghee-tyson-tn","ann_tavg":59.6,"ann_tmax":70,"ann_tmin":49.1,"ann_prcp":51.93,"ann_snow":4.6,"ann_htdd":3528.3,"ann_cldd":1574.4,"frost_first":"11/02","frost_last":"04/01","growing_season":215,"warmest_month":7,"coldest_month":1,"wettest_month":7,"driest_month":10,"snowiest_month":1,"comfort_score":73},"data":[{"month":"January","month_number":1,"avg_temp_f":39.1,"avg_high_f":48.2,"avg_low_f":30,"precip_in":4.76,"snow_in":1.7,"heating_degree_days":802.8,"cooling_degree_days":0.1,"days_with_precip":11.5,"days_with_snow":1.2,"days_freezing":18.5,"days_90f_plus":0,"humidity_pct":65.95833333333333,"wind_speed_mph":6.7625,"clear_sky_pct":27.150000000000002,"overcast_pct":39.6875},{"month":"February","month_number":2,"avg_temp_f":42.9,"avg_high_f":52.8,"avg_low_f":33.1,"precip_in":4.81,"snow_in":1.4,"heating_degree_days":617.8,"cooling_degree_days":0.4,"days_with_precip":11.7,"days_with_snow":1.3,"days_freezing":13.8,"days_90f_plus":0,"humidity_pct":63.583333333333336,"wind_speed_mph":7.3374999999999995,"clear_sky_pct":27.608333333333334,"overcast_pct":39.35},{"month":"March","month_number":3,"avg_temp_f":50.6,"avg_high_f":61.4,"avg_low_f":39.8,"precip_in":4.89,"snow_in":0.9,"heating_degree_days":451.6,"cooling_degree_days":5.2,"days_with_precip":12.7,"days_with_snow":0.7,"days_freezing":7.5,"days_90f_plus":0,"humidity_pct":61,"wind_speed_mph":7.2749999999999995,"clear_sky_pct":30.02857142857143,"overcast_pct":31.914285714285718},{"month":"April","month_number":4,"avg_temp_f":59.6,"avg_high_f":71.2,"avg_low_f":48,"precip_in":4.71,"snow_in":0,"heating_degree_days":198.1,"cooling_degree_days":36.1,"days_with_precip":11.1,"days_with_snow":0,"days_freezing":1,"days_90f_plus":0,"humidity_pct":65.875,"wind_speed_mph":6.575,"clear_sky_pct":26.447619047619046,"overcast_pct":26.523809523809526},{"month":"May","month_number":5,"avg_temp_f":67.9,"avg_high_f":78.9,"avg_low_f":56.9,"precip_in":4.13,"snow_in":0,"heating_degree_days":53.4,"cooling_degree_days":143.3,"days_with_precip":11.1,"days_with_snow":0,"days_freezing":0,"days_90f_plus":1.1,"humidity_pct":70.75,"wind_speed_mph":5.708333333333333,"clear_sky_pct":21.46875,"overcast_pct":21.8875},{"month":"June","month_number":6,"avg_temp_f":75.3,"avg_high_f":85.7,"avg_low_f":64.9,"precip_in":4.24,"snow_in":0,"heating_degree_days":2.3,"cooling_degree_days":311.2,"days_with_precip":12,"days_with_snow":0,"days_freezing":0,"days_90f_plus":6.8,"humidity_pct":71.33333333333333,"wind_speed_mph":5.583333333333333,"clear_sky_pct":26.175,"overcast_pct":18.216666666666665},{"month":"July","month_number":7,"avg_temp_f":78.5,"avg_high_f":88.4,"avg_low_f":68.7,"precip_in":5.25,"snow_in":0,"heating_degree_days":0,"cooling_degree_days":420,"days_with_precip":11.6,"days_with_snow":0,"days_freezing":0,"days_90f_plus":12.9,"humidity_pct":73.66666666666667,"wind_speed_mph":4.854166666666667,"clear_sky_pct":24.38888888888889,"overcast_pct":15.688888888888888},{"month":"August","month_number":8,"avg_temp_f":77.6,"avg_high_f":87.8,"avg_low_f":67.5,"precip_in":3.63,"snow_in":0,"heating_degree_days":0.1,"cooling_degree_days":392.1,"days_with_precip":9.8,"days_with_snow":0,"days_freezing":0,"days_90f_plus":11.2,"humidity_pct":71.875,"wind_speed_mph":4.508333333333334,"clear_sky_pct":28.412499999999998,"overcast_pct":15.362499999999999},{"month":"September","month_number":9,"avg_temp_f":71.8,"avg_high_f":82.5,"avg_low_f":61.1,"precip_in":3.49,"snow_in":0,"heating_degree_days":16.6,"cooling_degree_days":220.5,"days_with_precip":7.8,"days_with_snow":0,"days_freezing":0,"days_90f_plus":4.5,"humidity_pct":72.54166666666667,"wind_speed_mph":4.816666666666666,"clear_sky_pct":36.275,"overcast_pct":19.095833333333335},{"month":"October","month_number":10,"avg_temp_f":60.3,"avg_high_f":71.7,"avg_low_f":48.9,"precip_in":2.81,"snow_in":0,"heating_degree_days":187.5,"cooling_degree_days":41.8,"days_with_precip":8,"days_with_snow":0,"days_freezing":0.7,"days_90f_plus":0.1,"humidity_pct":70.29166666666667,"wind_speed_mph":4.8374999999999995,"clear_sky_pct":36.69565217391305,"overcast_pct":28.213043478260868},{"month":"November","month_number":11,"avg_temp_f":49,"avg_high_f":60,"avg_low_f":38.1,"precip_in":4.21,"snow_in":0.1,"heating_degree_days":481.6,"cooling_degree_days":3.2,"days_with_precip":9.4,"days_with_snow":0.2,"days_freezing":9.1,"days_90f_plus":0,"humidity_pct":70.95833333333333,"wind_speed_mph":5.75,"clear_sky_pct":32.44210526315789,"overcast_pct":35.752631578947366},{"month":"December","month_number":12,"avg_temp_f":41.9,"avg_high_f":51,"avg_low_f":32.8,"precip_in":5,"snow_in":0.5,"heating_degree_days":716.4,"cooling_degree_days":0.4,"days_with_precip":12,"days_with_snow":0.6,"days_freezing":16,"days_90f_plus":0,"humidity_pct":72.70833333333333,"wind_speed_mph":6.170833333333333,"clear_sky_pct":25.228571428571428,"overcast_pct":43.78095238095238}]}