Warm-summer humid continental climate

Climate Roscoe - South Dakota

Annual high54ºF

Annual low31ºF

Precipitation21.14 inch

Month	HighºF	LowºF	Precipinch	Snowinch
Jan	22	3	0.51	8
Feb	27	8	0.63	8
Mar	39	18	1.18	7
Apr	56	31	1.76	5
May	67	43	2.85	0
Jun	76	53	3.55	0
Jul	83	58	3.28	0
Aug	82	56	2.34	0
Sep	72	46	2.01	0
Oct	57	33	1.78	2
Nov	39	20	0.73	7
Dec	25	7	0.52	8

JanHigh 22ºFLow 3ºFPrecip 0.51 inch
FebHigh 27ºFLow 8ºFPrecip 0.63 inch
MarHigh 39ºFLow 18ºFPrecip 1.18 inch
AprHigh 56ºFLow 31ºFPrecip 1.76 inch
MayHigh 67ºFLow 43ºFPrecip 2.85 inch
JunHigh 76ºFLow 53ºFPrecip 3.55 inch
JulHigh 83ºFLow 58ºFPrecip 3.28 inch
AugHigh 82ºFLow 56ºFPrecip 2.34 inch
SepHigh 72ºFLow 46ºFPrecip 2.01 inch
OctHigh 57ºFLow 33ºFPrecip 1.78 inch
NovHigh 39ºFLow 20ºFPrecip 0.73 inch
DecHigh 25ºFLow 7ºFPrecip 0.52 inch

Roscoe Climate Graph - South Dakota Climate Chart

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Climate summary

What is the average weather in Roscoe, South Dakota?

Roscoe experiences a humid continental climate, marked by very large seasonal temperature contrasts. Summers are warm, but winters are very cold and bring significant snowfall. Precipitation is moderate annually, with a strong pattern of wetter summers and drier winters, though winter moisture often arrives as snow.

Based on climate normals · 1991–2020

Roscoe weather averages

Annual high54ºF

Annual low31ºF

Precipitation21.14 inch

Snowfall45 inch

Daily normals Roscoe - South Dakota - January

Day	HighºF	LowºF	Prec/moinch	Prec/yrinch	Snow/moinch	Snow/yrinch
Jan 1	21.9	4.9	0.02	0.02	0.30	0.30
Jan 2	21.7	4.7	0.04	0.04	0.60	0.60
Jan 3	21.6	4.5	0.06	0.06	0.90	0.90
Jan 4	21.4	4.3	0.08	0.08	1.20	1.20
Jan 5	21.3	4.1	0.10	0.10	1.60	1.60
Jan 6	21.2	3.9	0.13	0.13	1.90	1.90
Jan 7	21.2	3.8	0.15	0.15	2.20	2.20
Jan 8	21.1	3.6	0.17	0.17	2.50	2.50
Jan 9	21.0	3.5	0.19	0.19	2.80	2.80
Jan 10	21.0	3.3	0.21	0.21	3.10	3.10
Jan 11	21.0	3.2	0.23	0.23	3.30	3.30
Jan 12	20.9	3.1	0.25	0.25	3.60	3.60
Jan 13	20.9	3.0	0.26	0.26	3.90	3.90
Jan 14	20.9	2.9	0.28	0.28	4.20	4.20
Jan 15	21.0	2.8	0.30	0.30	4.40	4.40
Jan 16	21.0	2.7	0.31	0.31	4.70	4.70
Jan 17	21.0	2.7	0.33	0.33	4.90	4.90
Jan 18	21.1	2.6	0.34	0.34	5.20	5.20
Jan 19	21.1	2.6	0.36	0.36	5.40	5.40
Jan 20	21.2	2.6	0.37	0.37	5.60	5.60
Jan 21	21.3	2.6	0.39	0.39	5.90	5.90
Jan 22	21.3	2.6	0.40	0.40	6.10	6.10
Jan 23	21.4	2.6	0.42	0.42	6.30	6.30
Jan 24	21.5	2.6	0.43	0.43	6.50	6.50
Jan 25	21.6	2.7	0.45	0.45	6.80	6.80
Jan 26	21.8	2.7	0.46	0.46	7.00	7.00
Jan 27	21.9	2.8	0.48	0.48	7.20	7.20
Jan 28	22.0	2.9	0.49	0.49	7.40	7.40
Jan 29	22.2	3.0	0.51	0.51	7.60	7.60
Jan 30	22.3	3.1	0.52	0.52	7.90	7.90
Jan 31	22.5	3.2	0.54	0.54	8.10	8.10

Precipitation and snow add up through the month (/mo) and the year (/yr)

Weather history Roscoe - September 2026

Day	HighºF	LowºF	Precip.inch
Sep 1	–	–	0.00
Sep 2	–	–	0.04
Sep 3	–	–	0.00
Sep 4	–	–	–
Sep 5	–	–	0.45
Sep 6	–	–	0.04
Sep 7	–	–	0.03
Sep 8	–	–	0.00
Sep 9	–	–	0.00
Sep 10	–	–	0.00
Sep 11	–	–	0.00
Sep 12	–	–	0.00
Sep 13	–	–	0.00
Sep 14	–	–	0.00
Sep 15	–	–	0.80
Sep 16	–	–	0.00
Sep 17	–	–	0.00
Sep 18	–	–	0.55
Sep 19	–	–	0.01
Sep 20	–	–	0.03
Sep 21	–	–	0.00
Sep 22	–	–	0.03
Sep 23	–	–	0.00
Sep 24	–	–	0.72
Sep 25	–	–	0.02
Sep 26	–	–	0.02
Sep 27	–	–	0.03
Sep 28	–	–	0.07
Sep 29	–	–	0.29
Sep 30	–	–	0.02

The data for September 2026 is incomplete: some days or values are missing.

–No data
–Not yet observed or received
TTrace, too small to measure

Geo Roscoe - South Dakota

45.45°N, 99.34°W

Location

Country: United States
State: South Dakota
County: Edmunds
City: Roscoe
Zip Code: 57471
Elevation: 1795 ft
Longitude: -99.34
Latitude: 45.45
ICAO: –
IATA: –

Map of Roscoe - South Dakota

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