As of 08:54 MST

South Tucson, AZ weather in December

90°

South Tucson, Sunday, 9 August, 08:54

Clear. Feels like 94°. High 108°, low 83°.

Pressure29.91 inHg

Wind4 mph S

Humidity50%

Visibility6.2 mi

Dew point69°

See detailed hourly forecast

In December, South Tucson, AZ averages a high of 63.5° and a low of 39.9°. About 1.4 inches of precipitation fall over the month (4 wet days). The record high is 83.3° (2025) and the record low 8.6° (1990). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	66.9°	41°	7%	81° (1973)	28.6° (2004)
2	66.7°	41.9°	8%	80.2° (2024)	29.1° (1991)
3	66.7°	41.9°	8%	79.5° (2024)	28.2° (1991)
4	66.7°	41.5°	22%	78.4° (1987)	30.9° (1999)
5	66.4°	42.3°	15%	79.3° (2012)	30.7° (2005)
6	66.7°	41.4°	10%	79° (2010)	27.7° (2011)
7	66°	41.5°	10%	81.3° (1970)	27° (1960)
8	64.4°	41.4°	18%	77.9° (1996)	25.9° (1978)
9	64.4°	40.8°	12%	79.3° (1996)	22.5° (1978)
10	64.6°	40.8°	13%	79.2° (1975)	26.8° (1971)
11	64.8°	40.5°	10%	78.3° (2025)	29.1° (1997)
12	64.6°	40.6°	20%	77.9° (2023)	26.4° (1997)
13	63.7°	39.7°	22%	79.5° (2010)	27.1° (1985)
14	62.6°	39.6°	13%	80.6° (2025)	27.5° (2001)
15	63.1°	38.3°	7%	80.2° (2025)	27.7° (1987)
16	64°	39.6°	12%	77.7° (2024)	27° (2015)
17	64.4°	39.7°	17%	80.2° (2013)	27.5° (2015)
18	63.3°	40.1°	20%	79.3° (2023)	27.9° (1996)
19	63.3°	40.1°	17%	79.3° (2024)	28.2° (1996)
20	63.3°	39.2°	13%	79.3° (2024)	29.1° (1996)
21	62.6°	39.7°	15%	80.1° (2024)	15.4° (1978)
22	61.9°	39.4°	17%	83.3° (2025)	23.5° (1968)
23	60.4°	39°	17%	82.2° (2025)	8.6° (1990)
24	61.7°	37.6°	12%	76.1° (1971)	19.2° (1990)
25	61.9°	38.5°	12%	76.8° (2005)	22.3° (1990)
26	61.3°	37.9°	18%	79° (1980)	16.5° (1987)
27	60.4°	38.3°	18%	79.3° (1980)	25° (1987)
28	60.4°	38.7°	18%	77.7° (1980)	24.6° (1988)
29	60.3°	38.5°	22%	78.4° (2017)	25.5° (1966)
30	60.8°	38.3°	12%	77.7° (2017)	24.8° (1988)
31	61.3°	38.3°	13%	74.5° (2017)	25.5° (1969)