{"metadata":{"title":"Rolla Missouri S&t, MO Monthly Climate Normals","page_url":"https://plainclimate.com/city/rolla-missouri-s-t-mo","primary_station_id":"USC00237263","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, \"Rolla Missouri S&t, MO Climate Normals\". https://plainclimate.com/city/rolla-missouri-s-t-mo","row_count":12},"annual_summary":{"city_slug":"rolla-missouri-s-t-mo","ann_tavg":56.3,"ann_tmax":66.4,"ann_tmin":46.2,"ann_prcp":47.38,"ann_snow":17.3,"ann_htdd":4611.9,"ann_cldd":1486.6,"frost_first":"11/01","frost_last":"04/05","growing_season":210,"warmest_month":7,"coldest_month":1,"wettest_month":5,"driest_month":2,"snowiest_month":1,"comfort_score":78},"data":[{"month":"January","month_number":1,"avg_temp_f":31.7,"avg_high_f":40.9,"avg_low_f":22.4,"precip_in":2.73,"snow_in":5.6,"heating_degree_days":1033.6,"cooling_degree_days":0.1,"days_with_precip":9.4,"days_with_snow":4.9,"days_freezing":25.5,"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":36.1,"avg_high_f":46.1,"avg_low_f":26.2,"precip_in":2.49,"snow_in":4.1,"heating_degree_days":808,"cooling_degree_days":0.3,"days_with_precip":9.1,"days_with_snow":4.7,"days_freezing":20.7,"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":45.4,"avg_high_f":56,"avg_low_f":34.8,"precip_in":4.14,"snow_in":2.6,"heating_degree_days":612.5,"cooling_degree_days":5,"days_with_precip":12.1,"days_with_snow":2.7,"days_freezing":13.1,"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":56.3,"avg_high_f":67.2,"avg_low_f":45.4,"precip_in":4.9,"snow_in":0.2,"heating_degree_days":290.5,"cooling_degree_days":29.5,"days_with_precip":11.8,"days_with_snow":0.5,"days_freezing":2.7,"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":65.8,"avg_high_f":75.9,"avg_low_f":55.7,"precip_in":5.48,"snow_in":0,"heating_degree_days":91.5,"cooling_degree_days":116.3,"days_with_precip":13,"days_with_snow":0,"days_freezing":0,"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":74.3,"avg_high_f":84.1,"avg_low_f":64.6,"precip_in":4.37,"snow_in":0,"heating_degree_days":7.7,"cooling_degree_days":288.1,"days_with_precip":10.3,"days_with_snow":0,"days_freezing":0,"days_90f_plus":6.8,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"July","month_number":7,"avg_temp_f":78.8,"avg_high_f":88.9,"avg_low_f":68.7,"precip_in":4.74,"snow_in":0,"heating_degree_days":0.4,"cooling_degree_days":428.1,"days_with_precip":9.4,"days_with_snow":0,"days_freezing":0,"days_90f_plus":16.1,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"August","month_number":8,"avg_temp_f":77.6,"avg_high_f":88.1,"avg_low_f":67.1,"precip_in":4.52,"snow_in":0,"heating_degree_days":1.2,"cooling_degree_days":391.6,"days_with_precip":9.1,"days_with_snow":0,"days_freezing":0,"days_90f_plus":14.2,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"September","month_number":9,"avg_temp_f":69.6,"avg_high_f":80.4,"avg_low_f":58.9,"precip_in":4,"snow_in":0,"heating_degree_days":43.8,"cooling_degree_days":183.2,"days_with_precip":8.3,"days_with_snow":0,"days_freezing":0,"days_90f_plus":4.4,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"October","month_number":10,"avg_temp_f":58.2,"avg_high_f":69.1,"avg_low_f":47.3,"precip_in":3.26,"snow_in":0.1,"heating_degree_days":251.3,"cooling_degree_days":40.5,"days_with_precip":8.8,"days_with_snow":0.1,"days_freezing":1.5,"days_90f_plus":0.2,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null},{"month":"November","month_number":11,"avg_temp_f":46,"avg_high_f":55.7,"avg_low_f":36.4,"precip_in":3.92,"snow_in":1.3,"heating_degree_days":572.4,"cooling_degree_days":3.9,"days_with_precip":9.5,"days_with_snow":1.1,"days_freezing":10.5,"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":36,"avg_high_f":44.8,"avg_low_f":27.2,"precip_in":2.83,"snow_in":3.4,"heating_degree_days":898.9,"cooling_degree_days":0.1,"days_with_precip":9.2,"days_with_snow":3.8,"days_freezing":22.4,"days_90f_plus":0,"humidity_pct":null,"wind_speed_mph":null,"clear_sky_pct":null,"overcast_pct":null}]}