Oklahoma City, Oklahoma weather in December

Averages from 2021–2025 (155 days of record).

Average high: 56°F
Average low: 38°F
Rainy days: ~4 per month
Total precipitation: 1.2 in
Warmest recorded: 81°F
Coldest recorded: 4°F

Expect December days in Oklahoma City, Oklahoma to top out around 56°F and cool to about 38°F overnight, with roughly 4 days of measurable rain across the month. In recent years December has ranged from 4°F to 81°F.

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Current Oklahoma City, Oklahoma forecast → · Historical data by Open-Meteo (ERA5).