climate-data.org. April and May temperatures will be above normal in the north and below normal in the south, with below-normal rain. Check temperature, rainfall & sunshine averages & more in December 2021 in New Orleans, Louisiana - USA Send photos snow in your area to news@theadvertiser.com. The tables below give monthly averages for rainfall during December at cities, towns and parks in Louisiana. Throughout December, in the average 0.1 snowfall days, it … This includes the days when precipitation amounts to 0.01 inches (0.25 millimetres) or more. Subscribe To Premium (no ads) 4x the hourly forecasts. [2356628] Faster speed (due to no ads) Detailed 15-min forecasts. New Orleans December weather guide. What is the weather in December in New Orleans? Continents Select a continent. Weather Atlas: Slidell, LA - December weather forecast and climate information. Each place has a total for the amount of precipitation it usually receives this month along with information on the number of days with wet weather. The snowiest periods will be in mid-November, early to mid-December, and mid-February. Record Coldest year in Louisiana - 1968 and 1983 / Avg temperature 64.53 degrees; Louisiana average Summer temperature (June, July, August) 81.1 F degrees, warmest U.S. summer state (tied with Tx) Louisiana average Winter temperature (December, January, February) 50.9 F degrees, 48th coldest U.S. winter state In Slidell snow does not fall in February through December. The Old Farmer's Almanac Long Range Weather Forecast for the Heartland Region. A wave of winter weather left a blanket of snow in Lafayette, Acadiana and across Louisiana. Baton Rouge, LA Weather. With an average of 10.2h of daylight, December has the shortest days of the year in Slidell, Louisiana. While temperatures do drop, it rarely gets below freezing. climate-data.org. With an average high of 64℉ and a low of 45℉ layers, scarves, and gloves are encouraged. December is the first month it typically snows in Lake Charles. Africa; North America See Historical Weather Data for a Location and Date. December 19, 2017: Severe Weather & Heavy Rainfall May 28, 2017: Tornadoes and Widespread Wind Damage in Texas and Louisiana May 11, 2017: Tornadoes in East Texas & Northwest Louisiana Weather History for Places in Louisiana . Unlike most places, New Orleans is the perfect place for parades, fireworks, and outdoor sporting events in December. December weather for Lake Charles, Louisiana. Year * Month * Day * Data is available up to February 16, 2021.