Warm-summer humid continental climate

Climate Mandan - North Dakota

Annual high54ºF

Annual low31ºF

Precipitation17.95 inch

Month	HighºF	LowºF	Precipinch
Jan	23	2	0.37
Feb	28	8	0.40
Mar	39	19	0.64
Apr	56	31	1.20
May	67	43	2.61
Jun	76	53	3.31
Jul	83	58	3.26
Aug	82	56	2.15
Sep	71	45	1.54
Oct	57	32	1.37
Nov	39	19	0.68
Dec	26	7	0.42

JanHigh 23ºFLow 2ºFPrecip 0.37 inch
FebHigh 28ºFLow 8ºFPrecip 0.40 inch
MarHigh 39ºFLow 19ºFPrecip 0.64 inch
AprHigh 56ºFLow 31ºFPrecip 1.20 inch
MayHigh 67ºFLow 43ºFPrecip 2.61 inch
JunHigh 76ºFLow 53ºFPrecip 3.31 inch
JulHigh 83ºFLow 58ºFPrecip 3.26 inch
AugHigh 82ºFLow 56ºFPrecip 2.15 inch
SepHigh 71ºFLow 45ºFPrecip 1.54 inch
OctHigh 57ºFLow 32ºFPrecip 1.37 inch
NovHigh 39ºFLow 19ºFPrecip 0.68 inch
DecHigh 26ºFLow 7ºFPrecip 0.42 inch

Mandan Climate Graph - North Dakota Climate Chart

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Climate summary

What is the average weather in Mandan, North Dakota?

Mandan experiences a humid continental climate, marked by very large seasonal temperature contrasts due to its inland location. Summers are warm, but winters are very cold. The area is dry overall, with precipitation spread relatively evenly throughout the year, though summer is the wettest season.

Based on climate normals · 1991–2020

Mandan weather averages

Annual high54ºF

Annual low31ºF

Precipitation17.95 inch

Daily normals Mandan - North Dakota - January

Day	HighºF	LowºF	Prec/moinch	Prec/yrinch
Jan 1	22.9	4.1	0.02	0.02
Jan 2	22.8	3.9	0.03	0.03
Jan 3	22.7	3.7	0.05	0.05
Jan 4	22.5	3.5	0.06	0.06
Jan 5	22.4	3.4	0.08	0.08
Jan 6	22.3	3.2	0.09	0.09
Jan 7	22.3	3.1	0.11	0.11
Jan 8	22.2	3.0	0.12	0.12
Jan 9	22.1	2.8	0.14	0.14
Jan 10	22.1	2.7	0.15	0.15
Jan 11	22.1	2.6	0.17	0.17
Jan 12	22.1	2.5	0.18	0.18
Jan 13	22.0	2.5	0.20	0.20
Jan 14	22.0	2.4	0.21	0.21
Jan 15	22.1	2.3	0.22	0.22
Jan 16	22.1	2.3	0.23	0.23
Jan 17	22.1	2.2	0.24	0.24
Jan 18	22.2	2.2	0.26	0.26
Jan 19	22.2	2.2	0.27	0.27
Jan 20	22.3	2.2	0.28	0.28
Jan 21	22.4	2.2	0.29	0.29
Jan 22	22.4	2.2	0.30	0.30
Jan 23	22.5	2.2	0.31	0.31
Jan 24	22.6	2.3	0.32	0.32
Jan 25	22.7	2.3	0.33	0.33
Jan 26	22.9	2.4	0.34	0.34
Jan 27	23.0	2.5	0.35	0.35
Jan 28	23.1	2.5	0.35	0.35
Jan 29	23.3	2.6	0.36	0.36
Jan 30	23.4	2.8	0.37	0.37
Jan 31	23.6	2.9	0.38	0.38

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

Weather history Mandan - August 2026

Day	HighºF	LowºF	Precip.inch
Aug 1	95.0	55.0	0.00
Aug 2	100.9	64.9	0.00
Aug 3	78.1	48.0	0.00
Aug 4	75.0	45.0	0.08
Aug 5	86.0	45.0	0.00
Aug 6	93.9	53.1	0.00
Aug 7	79.0	48.0	0.00
Aug 8	91.9	48.0	0.00
Aug 9	81.0	57.9	0.00
Aug 10	82.9	53.1	0.00
Aug 11	87.1	62.1	0.00
Aug 12	80.1	60.1	1.33
Aug 13	80.1	55.9	0.04
Aug 14	70.0	63.0	0.00
Aug 15	73.9	57.9	0.65
Aug 16	82.0	48.9	0.00
Aug 17	84.9	55.0	0.60
Aug 18	80.1	54.0	0.00
Aug 19	86.0	52.0	0.00
Aug 20	84.0	55.9	0.00
Aug 21	82.0	52.0	0.00
Aug 22	82.0	48.9	0.00
Aug 23	88.0	55.0	0.00
Aug 24	91.0	61.0	0.00
Aug 25	78.1	57.0	0.00
Aug 26	80.1	51.1	0.02
Aug 27	84.0	46.9	0.00
Aug 28	86.0	59.0	0.07
Aug 29	86.0	62.1	0.00
Aug 30	82.0	55.0	0.00
Aug 31	80.1	50.0	0.85

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

Observed extremes

Highest max temperature100.9ºF · Aug 2
Lowest max temperature70.0ºF · Aug 14
Highest min temperature64.9ºF · Aug 2
Lowest min temperature45.0ºF · Aug 4

Geo Mandan - North Dakota

46.77°N, 100.89°W

Location

Country: United States
State: North Dakota
County: Morton
City: Mandan
Zip Code: 58554
Elevation: 1939 ft
Longitude: -100.89
Latitude: 46.77
ICAO: –
IATA: –

Map of Mandan - North Dakota

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USGS National Map