As of 23:41 CDT

Clayton, MO weather in December

79°

Clayton, Saturday, 8 August, 23:41

Clear. Feels like 79°. High 90°, low 70°.

Pressure30.00 inHg

Wind1 mph E

Humidity81%

Visibility6.2 mi

Dew point73°

See detailed hourly forecast

In December, Clayton, MO averages a high of 43.1° and a low of 28.7°. About 2.9 inches of precipitation fall over the month (9 wet days). The record high is 74.5° (2025) and the record low -23.6° (1989). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	46.9°	32.5°	27%	69.3° (1970)	15.4° (1985)
2	48°	32.4°	20%	71.8° (2012)	10.6° (1985)
3	46.8°	32.9°	32%	72.5° (1998)	11.7° (2006)
4	45.7°	32°	28%	70° (1998)	3.7° (2006)
5	46.6°	31.1°	27%	72° (1998)	10.9° (2025)
6	44.1°	30.7°	37%	70.5° (1998)	5.7° (1977)
7	43.2°	29.8°	23%	68° (1980)	-3.1° (1977)
8	43.7°	30.4°	32%	68.4° (1991)	8.8° (2006)
9	44.1°	29.7°	30%	62.1° (2021)	3.4° (1977)
10	43.9°	28.4°	23%	65.8° (1965)	-4.5° (1977)
11	43.9°	28.4°	28%	64.6° (1979)	6.8° (1977)
12	43.9°	30.6°	25%	70.2° (2015)	1.8° (1962)
13	43.7°	29.8°	33%	65.1° (1975)	-0.4° (1961)
14	44.2°	29.8°	37%	65.5° (1975)	0.9° (1963)
15	44.8°	29.7°	38%	69.4° (2021)	-3.8° (1989)
16	42.3°	28.4°	27%	66.9° (2021)	-13° (1989)
17	41.4°	27°	18%	63° (2006)	-12.1° (1989)
18	41.9°	26.6°	28%	59° (2002)	0.9° (2000)
19	42.1°	27°	25%	63.3° (1976)	-6.9° (1981)
20	42.3°	27.1°	25%	64.4° (1988)	-4° (2000)
21	41.2°	27°	32%	62.8° (1967)	-10.3° (1989)
22	41.9°	26.8°	25%	59.9° (1965)	-22.4° (1989)
23	42.3°	27.5°	27%	66.2° (2025)	-23.6° (1989)
24	39.4°	25.7°	27%	68.2° (2021)	-14.3° (1983)
25	39.4°	24.8°	17%	65.5° (2019)	-17.7° (1983)
26	41°	26.1°	20%	67.3° (2019)	-8.7° (1983)
27	42.4°	27.9°	32%	65.8° (1971)	3.9° (2017)
28	43.2°	27.3°	32%	74.5° (2025)	2.5° (2000)
29	40.8°	27.1°	37%	68.7° (1984)	-8.7° (1983)
30	41.2°	27°	33%	64.8° (1965)	-13.9° (1983)
31	39.9°	27°	35%	66° (2021)	-0° (1976)