As of 18:49 PDT

Bostonia, CA weather in December

83°

Bostonia, Saturday, 8 August, 18:49

Clear. Feels like 85°. High 96°, low 70°.

Pressure29.83 inHg

Wind6 mph W

Humidity54%

Visibility6.2 mi

Dew point65°

See detailed hourly forecast

In December, Bostonia, CA averages a high of 64.8° and a low of 46.4°. About 1.9 inches of precipitation fall over the month (6 wet days). The record high is 84.7° (1979) and the record low 29.1° (1990). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	67.3°	47.7°	18%	80.1° (1972)	36.7° (2004)
2	67.6°	47.5°	7%	79.9° (1977)	38.3° (2004)
3	67.5°	48.6°	13%	79° (1979)	40.3° (1970)
4	66.9°	48.4°	18%	84.7° (1979)	37.9° (2011)
5	67.1°	47.8°	17%	82.8° (1979)	38.3° (2011)
6	67.1°	48.4°	15%	83.5° (1979)	39° (1978)
7	66.4°	48.2°	22%	80.1° (2024)	31.6° (1978)
8	66.4°	48.2°	18%	82° (2015)	33.8° (1978)
9	66.4°	47.1°	15%	81.9° (2025)	32.4° (1960)
10	66.2°	46.8°	15%	84.6° (2025)	36.9° (1985)
11	65.1°	47.1°	18%	79.5° (2025)	37° (1972)
12	64°	46.8°	13%	84.4° (2010)	33.3° (1972)
13	64.2°	45.9°	18%	82.6° (2010)	35.8° (1985)
14	64.2°	45.3°	15%	76.1° (2004)	32.4° (1967)
15	64.9°	45.5°	8%	80.1° (2017)	34.5° (1987)
16	65.5°	46.4°	22%	82.6° (2013)	37.4° (1971)
17	65.1°	46.6°	18%	81.3° (2013)	36.7° (1984)
18	64.4°	46.4°	22%	78.6° (2025)	37° (1968)
19	64°	45.9°	20%	78.4° (2005)	36.9° (1992)
20	64.2°	45.9°	20%	79.5° (2020)	34.5° (1978)
21	63.1°	45.9°	18%	82.2° (2005)	29.3° (1968)
22	62.8°	46°	22%	75.7° (1960)	34.9° (1968)
23	63.9°	45.5°	23%	78.6° (1989)	29.1° (1990)
24	64.4°	45.5°	13%	80.2° (1989)	34.7° (1998)
25	64.6°	45.9°	18%	84° (2022)	33.8° (1974)
26	63°	45.1°	27%	81.9° (2022)	33.1° (1987)
27	62.8°	44.8°	13%	79.2° (2013)	33.6° (1987)
28	62.2°	45.1°	22%	81.3° (2017)	35.1° (1987)
29	62.4°	45.3°	27%	81° (1980)	34° (1988)
30	63°	45°	22%	79.7° (1980)	34.5° (1988)
31	62.6°	45.3°	20%	79.2° (1963)	34.9° (1982)