As of 01:38 CDT

McKinney, TX weather in December

80°

McKinney, Sunday, 9 August, 01:38

Clear. Feels like 80°. High 101°, low 79°.

Pressure30.00 inHg

Wind2 mph S

Humidity69%

Visibility6.2 mi

Dew point69°

See detailed hourly forecast

In December, McKinney, TX averages a high of 56.5° and a low of 40.4°. About 3.1 inches of precipitation fall over the month (7 wet days). The record high is 84.4° (2005) and the record low 4.3° (1983). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	59.5°	42.1°	10%	79.3° (2012)	28.4° (2006)
2	60.4°	43.2°	25%	79.5° (2012)	23.4° (1985)
3	60.6°	43.7°	23%	84.4° (2005)	27.5° (1985)
4	58.6°	42.4°	17%	78.4° (2017)	26.2° (2006)
5	58.8°	43°	27%	75.4° (1998)	26.8° (2009)
6	56.8°	42.8°	23%	76.8° (1966)	22.1° (1972)
7	56.8°	41.7°	20%	77.9° (1966)	21.9° (2013)
8	58.1°	41.9°	25%	76.6° (2007)	20.7° (2005)
9	57.9°	40.8°	23%	77.5° (2021)	20.7° (2005)
10	55.6°	40.8°	25%	78.6° (2021)	22.6° (2013)
11	57°	40.1°	28%	74.5° (1996)	26.4° (1972)
12	56.5°	41.2°	28%	74.3° (1990)	22.1° (1961)
13	57°	41.5°	28%	75.2° (1995)	22.1° (1961)
14	57.2°	41.7°	30%	74.8° (1995)	22.3° (1985)
15	56.5°	40.5°	30%	77.4° (2021)	22.5° (1989)
16	54.9°	39.7°	23%	78.6° (1977)	15.8° (1989)
17	55.8°	39°	15%	75° (2021)	23.4° (1979)
18	56.8°	39.9°	22%	74.3° (1980)	19.6° (1964)
19	56.1°	40.3°	25%	73.9° (2012)	19.6° (2016)
20	56.7°	40.6°	23%	75° (2025)	21.9° (1983)
21	56.8°	39.7°	22%	76.1° (2010)	20.7° (1989)
22	56.1°	39.2°	18%	72.5° (2025)	8.6° (1989)
23	54.1°	39.4°	22%	79.2° (2025)	5.9° (1989)
24	52.9°	37.6°	17%	77° (2025)	8.8° (1983)
25	52.3°	36.3°	13%	77° (2021)	4.3° (1983)
26	54.3°	38.7°	27%	81.7° (2025)	13.1° (1983)
27	56.5°	39°	27%	80.8° (2025)	18.1° (2012)
28	55.4°	40.1°	23%	81.5° (2025)	23.5° (2009)
29	54.9°	39.9°	27%	72° (1984)	10.6° (1983)
30	55.8°	38.8°	30%	73.2° (2024)	12° (1983)
31	53.4°	38.1°	20%	71.4° (1964)	17.1° (1990)