Weather in December in Grand Coteau, La

• The average temperature in Grand Coteau, La in December is quite mild at 12 °C (53.6 °F).
• Afternoons can be very mild with average high temperatures reaching 17.8 °C (64 °F).
• Overnight temperatures are generally cool with an average low of 6.1 °C (43 °F).
• The range/ variation of diurnal mean temperatures in December is 11.7 °C (21.1 °F).
• Precipitation averages for December are high with 142mm (5.6 in) recorded.
• The shortest day is 10h 12' long and the longest day is 10h 20' long with an average length of 10h 14'.

Weather Trend Graph for December in Grand Coteau, La, Usa