As of 10:28 CDT

Tiffin, IA weather in December

76°

Tiffin, Sunday, 9 August, 10:28

Overcast. Feels like 78°. High 95°, low 67°.

Pressure29.91 inHg

Wind11.2 mph S

Humidity87%

Visibility6.2 mi

Dew point73°

See detailed hourly forecast

In December, Tiffin, IA averages a high of 33.9° and a low of 20°. About 1.9 inches of precipitation fall over the month (7 wet days). The record high is 71.4° (2021) and the record low -25.6° (1983). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	38.1°	25.5°	28%	60.4° (1970)	-1.8° (1971)
2	39.6°	25.3°	22%	63.5° (1982)	-4.7° (1985)
3	38.3°	24.1°	27%	67.5° (2012)	-14.1° (1985)
4	37.6°	23.7°	17%	67.3° (1998)	-5.8° (1991)
5	37.8°	23.5°	23%	67.5° (2001)	0.3° (1990)
6	34.9°	21.4°	28%	57.9° (1998)	-4.7° (2005)
7	33.6°	20.7°	20%	55.9° (2023)	-11.7° (2005)
8	34.3°	21.2°	27%	59.9° (1991)	-2.6° (2025)
9	34.5°	20.7°	27%	53.8° (1993)	-9.9° (1977)
10	34°	19.9°	23%	56.5° (2015)	-14.3° (1977)
11	33.6°	18.7°	25%	57.6° (1965)	-12.6° (1977)
12	34.3°	20.3°	18%	58.1° (1991)	-14.6° (2000)
13	34.9°	20.5°	23%	61° (2015)	-18.6° (2000)
14	35.4°	21.2°	27%	61° (1975)	-17.1° (1985)
15	35.2°	21.9°	25%	71.4° (2021)	-8° (1989)
16	34.2°	20.1°	23%	64.8° (2021)	-8.7° (2009)
17	31.6°	18.5°	12%	51.1° (1977)	-18.6° (1972)
18	32.7°	19°	13%	54.9° (2002)	-16.8° (1983)
19	32.7°	18.5°	18%	54.1° (1988)	-24.9° (1985)
20	32.4°	18.5°	30%	53.8° (1967)	-17.3° (1983)
21	31.8°	18.1°	20%	58.3° (1967)	-21.1° (1963)
22	32°	18.1°	23%	51.3° (1979)	-18.9° (1983)
23	32.2°	18°	28%	58.5° (1965)	-21.3° (1983)
24	30.4°	16.2°	28%	59.2° (2021)	-25.6° (1983)
25	30.7°	16.9°	17%	58.6° (2019)	-19.8° (2000)
26	32°	17.6°	20%	57.6° (2016)	-13.9° (1983)
27	33.3°	18.7°	27%	56.8° (2008)	-8° (2000)
28	34.7°	21.2°	38%	63.9° (1984)	-11.6° (1961)
29	32.9°	18.7°	22%	62.8° (1984)	-14.6° (1983)
30	32.4°	16.2°	28%	58.5° (1965)	-15.5° (1983)
31	30°	16.3°	20%	61° (1965)	-16.1° (1990)