Will I be cold?
Will I be cold in Tulsa in December?
Verdict
Yes — Yes, cold.
Lows drop to 30°F on average — noticeably cold, especially after sundown.
Day vs. night
Day
50°F
Cool
Sweater weather with the option to add a light shell.
Night
30°F
Freezing
Deep freeze after sunset — every exposed step counts.
Why
Tulsa in December averages highs of 50°F, lows of 30°F, 7 rainy days.
Plan for real winter kit — an insulated coat, warm hat, and gloves rather than a light jacket.