As of 12:40 CDT

Ethan, SD weather in December

74°

Ethan, Wednesday, 7 October, 12:40

Overcast. Feels like 73°. High 75°, low 49°.

Pressure30.06 inHg

Wind6 mph NW

Humidity45%

Visibility6.2 mi

Dew point51°

See detailed hourly forecast

In December, Ethan, SD averages a high of 30.9° and a low of 15.6°. About 1.0 inches of precipitation fall over the month (5 wet days). The record high is 65.8° (2021) and the record low -33.5° (1990). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	35.1°	21.7°	20%	65.8° (2021)	-9.2° (1960)
2	34.7°	19.2°	13%	62.2° (1998)	-15.2° (1985)
3	33.6°	19.2°	12%	59.2° (1962)	-13.2° (1985)
4	35.6°	19.2°	15%	50.9° (1995)	-8.1° (1991)
5	33.8°	19°	13%	53.6° (2012)	-8.1° (2005)
6	32°	16.2°	12%	55° (2023)	-19.1° (1972)
7	31.6°	17.4°	17%	54.3° (2024)	-15.2° (2013)
8	32°	16.7°	18%	53.4° (2020)	-11.9° (1976)
9	32.9°	17.2°	20%	53.6° (2015)	-13.5° (1972)
10	33.1°	16.3°	10%	58.6° (1979)	-17.7° (1972)
11	32.5°	16.2°	8%	53.4° (1968)	-14.1° (2013)
12	32°	15.6°	8%	52° (1993)	-22.9° (2000)
13	31.6°	17.6°	17%	53.8° (2014)	-17.9° (1985)
14	31.6°	16.7°	25%	56.5° (1998)	-16.6° (1985)
15	31.5°	17.1°	22%	52.7° (2021)	-25.4° (1963)
16	31.5°	16°	18%	52.3° (1962)	-21.5° (1963)
17	30.2°	15.1°	10%	55.2° (2025)	-15.7° (1964)
18	29.8°	13.8°	8%	53.4° (1979)	-25.8° (2016)
19	29.1°	12.9°	15%	48.6° (2018)	-24.2° (1983)
20	29.1°	14.4°	13%	51.1° (1979)	-18.6° (1996)
21	29.5°	14.4°	17%	48.7° (2003)	-23.8° (1989)
22	28.9°	15.4°	8%	55.4° (2020)	-29.7° (1989)
23	27.7°	12.6°	15%	48° (2023)	-33.5° (1990)
24	27.5°	11.7°	20%	50.5° (2021)	-27.6° (1983)
25	29.8°	12.9°	18%	51.1° (1994)	-21.8° (1983)
26	30.2°	14.4°	17%	51.6° (2011)	-20° (1964)
27	31.1°	15.8°	20%	53.8° (2025)	-9° (1996)
28	29.7°	15.3°	20%	52.2° (2002)	-14.1° (1993)
29	27.3°	12.6°	17%	54° (1999)	-17.3° (2018)
30	27.3°	11.5°	18%	54.1° (2004)	-18.8° (1990)
31	24.3°	8.2°	8%	50.9° (1999)	-22.7° (2017)