Dickinson weather in September

In September, Dickinson sees average daytime highs of 70°F and overnight lows near 46°F, with 2.0 in of precipitation across 6.2 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 77°F in the first days to 64°F by the end. The sky is clear or mostly clear about 47% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 12 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Dickinson's 3rd-clearest and 10th-windiest month. For the whole year in context, see Dickinson's year-round climate.

Daytime high: 70°; 4th warmest
Overnight low: 46°; 9th coldest
Precipitation: 2.0 in; 6.2 wet days
Daylight: 12 h 18 min; 5:36 AM – 5:55 PM
Cloud cover: 46%; 3rd clearest
Wind: 10 mph; 10th windiest
Solar energy: 4.43 kWh/m²
Travel score: 7.2; out of 10

Dickinson is seat of Stark County, North Dakota, United States.

Density: 915/km²; people per km²
Founded: 1882

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← August Dickinson year-round climate October →Best places to visit in September

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 77°F in the first days to 64°F by the end.

A typical September day in Dickinson reaches about 70°F in the afternoon and slips back to 46°F overnight — a 24°F spread between the day's warmth and the night's chill. On most days the high lands between 55°F and 85°F. Set against its neighbours, September runs about 11°F cooler than August and about 15°F warmer than October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°F)	78	77	77	76	76	75	74	74	73	73	72	72	71	71	70	70	69	69	68	68	67	67	67	66	66	65	65	64	64	63
Avg low (°F)	53	52	52	51	51	51	50	50	49	49	48	48	47	47	46	46	46	45	45	44	44	44	43	43	43	42	42	41	41	41

	Avg high (°F)	Avg low (°F)
1	78	53
2	77	52
3	77	52
4	76	51
5	76	51
6	75	51
7	74	50
8	74	50
9	73	49
10	73	49
11	72	48
12	72	48
13	71	47
14	71	47
15	70	46
16	70	46
17	69	46
18	69	45
19	68	45
20	68	44
21	67	44
22	67	44
23	67	43
24	66	43
25	66	43
26	65	42
27	65	42
28	64	41
29	64	41
30	63	41

How September really feels in Dickinson

Once humidity and wind are folded in, September averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F

heat index over the day's high

Days feeling ≤ 32°F

wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Dickinson weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 6th-wettest month here — the current month is highlighted below.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	25° / 8°	0.6	4.3	4.5	8.8	0.0
Feb	28° / 11°	0.6	4	4.2	10	0.0
Mar	40° / 20°	1.0	5.9	4.4	11.6	0.4
Apr	52° / 31°	2.0	8.4	3.4	13.3	2.9
May	64° / 43°	2.9	10.8	0.8	14.8	5.6
Jun	74° / 53°	3.2	11.1	0	15.6	6.6
Jul	81° / 58°	2.7	8.9	0	15.3	6.9
Aug	81° / 56°	2.2	7.5	0	14	7.2
Sep	70° / 46°	2.0	6.2	0.1	12.4	7.2
Oct	55° / 34°	1.5	5.9	1.7	10.6	3.9
Nov	39° / 21°	0.8	3.7	3.1	9.2	0.2
Dec	28° / 12°	0.6	4.1	4.3	8.4	0.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 37%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	68	67	68	67	67	66	65	65	64	64	63	62	62	62	61	61	61	61	61	61	62	62	62	62	62	62	61	61	62	62
Cloudier (%)	32	33	32	33	33	34	35	35	36	36	37	38	38	38	39	39	39	39	39	39	38	38	38	38	38	38	39	39	38	38

	Clearer (%)	Cloudier (%)
1	68	32
2	67	33
3	68	32
4	67	33
5	67	33
6	66	34
7	65	35
8	65	35
9	64	36
10	64	36
11	63	37
12	62	38
13	62	38
14	62	38
15	61	39
16	61	39
17	61	39
18	61	39
19	61	39
20	61	39
21	62	38
22	62	38
23	62	38
24	62	38
25	62	38
26	62	38
27	61	39
28	61	39
29	62	38
30	62	38

Chance of precipitation in September

Any precipitationSnow

Dickinson gets around 2.0 in of rain and snow over 6.2 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 21% and peaks near 23% on the wettest days, and about 0 day brings snow.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	20	20	20	20	20	21	21	21	21	22	22	22	22	23	23	23	23	22	22	21	21	21	20	20	20	19	19	19	19	18
Snow chance (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	1	2	2

	Rain chance (%)	Snow chance (%)
1	20	0
2	20	0
3	20	0
4	20	0
5	20	0
6	21	0
7	21	0
8	21	0
9	21	0
10	22	0
11	22	0
12	22	0
13	22	0
14	23	0
15	23	0
16	23	0
17	23	0
18	22	0
19	22	0
20	21	0
21	21	0
22	21	0
23	20	1
24	20	1
25	20	1
26	19	1
27	19	1
28	19	1
29	19	2
30	18	2

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 92% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	80	81	81	83	84	85	86	87	88	89	90	90	92	92	93	94	94	95	95	96	96	97	98	98	99	99	99	100	100	100
Comfortable (%)	14	13	13	12	11	10	10	9	8	8	7	7	6	6	5	5	5	4	4	3	3	2	2	2	1	1	1	0	0	0
Humid (%)	6	6	6	5	5	5	4	4	4	3	3	3	2	2	2	1	1	1	1	1	1	1	0	0	0	0	0	0	0	0

	Dry (%)	Comfortable (%)	Humid (%)
1	80	14	6
2	81	13	6
3	81	13	6
4	83	12	5
5	84	11	5
6	85	10	5
7	86	10	4
8	87	9	4
9	88	8	4
10	89	8	3
11	90	7	3
12	90	7	3
13	92	6	2
14	92	6	2
15	93	5	2
16	94	5	1
17	94	5	1
18	95	4	1
19	95	4	1
20	96	3	1
21	96	3	1
22	97	2	1
23	98	2	0
24	98	2	0
25	99	1	0
26	99	1	0
27	99	1	0
28	100	0	0
29	100	0	0
30	100	0	0

Wind in September

Winds average 10 mph in September.

Across September, daily wind ranges from about 10 mph on the calmest days to 11 mph at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (mph)	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	11	11	11	11	11	11	11	11	11
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (mph)	Feels
1	10	light breeze
2	10	light breeze
3	10	light breeze
4	10	light breeze
5	10	light breeze
6	10	light breeze
7	10	light breeze
8	10	light breeze
9	10	light breeze
10	10	light breeze
11	10	light breeze
12	10	light breeze
13	10	light breeze
14	10	light breeze
15	10	light breeze
16	10	light breeze
17	10	light breeze
18	10	light breeze
19	10	light breeze
20	10	light breeze
21	10	light breeze
22	11	light breeze
23	11	light breeze
24	11	light breeze
25	11	light breeze
26	11	light breeze
27	11	light breeze
28	11	light breeze
29	11	light breeze
30	11	light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 12 min at the start of September to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 102 minutes over September. Sunrise moves from 5:15 AM to 5:55 AM, and sunset from 6:26 PM to 5:26 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	13.2	13.1	13.1	13.0	13.0	12.9	12.8	12.8	12.7	12.7	12.6	12.6	12.5	12.4	12.4	12.3	12.3	12.2	12.2	12.1	12.0	12.0	11.9	11.9	11.8	11.8	11.7	11.6	11.6	11.5
Sunrise (AM)	5:15	5:17	5:18	5:19	5:21	5:22	5:24	5:25	5:26	5:28	5:29	5:30	5:32	5:33	5:34	5:36	5:37	5:38	5:40	5:41	5:42	5:44	5:45	5:46	5:48	5:49	5:51	5:52	5:53	5:55
Sunset (PM)	6:26	6:24	6:22	6:20	6:18	6:16	6:14	6:12	6:10	6:08	6:06	6:04	6:02	6:00	5:57	5:55	5:53	5:51	5:49	5:47	5:45	5:43	5:41	5:39	5:37	5:35	5:32	5:30	5:28	5:26

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	13.2	5:15	6:26
2	13.1	5:17	6:24
3	13.1	5:18	6:22
4	13.0	5:19	6:20
5	13.0	5:21	6:18
6	12.9	5:22	6:16
7	12.8	5:24	6:14
8	12.8	5:25	6:12
9	12.7	5:26	6:10
10	12.7	5:28	6:08
11	12.6	5:29	6:06
12	12.6	5:30	6:04
13	12.5	5:32	6:02
14	12.4	5:33	6:00
15	12.4	5:34	5:57
16	12.3	5:36	5:55
17	12.3	5:37	5:53
18	12.2	5:38	5:51
19	12.2	5:40	5:49
20	12.1	5:41	5:47
21	12.0	5:42	5:45
22	12.0	5:44	5:43
23	11.9	5:45	5:41
24	11.9	5:46	5:39
25	11.8	5:48	5:37
26	11.8	5:49	5:35
27	11.7	5:51	5:32
28	11.6	5:52	5:30
29	11.6	5:53	5:28
30	11.5	5:55	5:26

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.43 kWh/m².

For context, solar energy here swings from a low near 1.45 kWh/m² to a high of 6.85 kWh/m² in July across the year — September's 4.43 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	5.2	5.2	5.1	5.1	5.0	4.9	4.9	4.8	4.8	4.7	4.6	4.6	4.5	4.5	4.4	4.4	4.3	4.3	4.2	4.2	4.1	4.1	4.0	4.0	3.9	3.9	3.8	3.8	3.7	3.7
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	5.2	Bright
2	5.2	Bright
3	5.1	Bright
4	5.1	Bright
5	5.0	Bright
6	4.9	Bright
7	4.9	Bright
8	4.8	Bright
9	4.8	Bright
10	4.7	Bright
11	4.6	Bright
12	4.6	Bright
13	4.5	Bright
14	4.5	Bright
15	4.4	Bright
16	4.4	Bright
17	4.3	Bright
18	4.3	Bright
19	4.2	Bright
20	4.2	Bright
21	4.1	Bright
22	4.1	Bright
23	4.0	Bright
24	4.0	Moderate
25	3.9	Moderate
26	3.9	Moderate
27	3.8	Moderate
28	3.8	Moderate
29	3.7	Moderate
30	3.7	Moderate

Planning a trip in September

Is September a good time to visit Dickinson?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.2

Sightseeing

1st-best month of the year

4.5

Beach & pool

4th-best month of the year

September is one of the better times to visit Dickinson for general sightseeing.

What to pack for Dickinson in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Dickinson sees daytime highs around 70°F and nights near 46°F. Little to plan around — just the basics. About 6 days see rain.

UV index in Dickinson in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Dickinson peaks around June 21 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	1	2	3	5	6	8	8	7	5	4	2	1
Level	Low	Low	Moderate	Moderate	High	Very high	Very high	High	High	Moderate	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	2	Low
Mar	3	Moderate
Apr	5	Moderate
May	6	High
Jun	8	Very high
Jul	8	Very high
Aug	7	High
Sep	5	High
Oct	4	Moderate
Nov	2	Low
Dec	1	Low

Location & terrain

Where is Dickinson?

Dickinson sits at 46.9°N, 102.8°W, 2,411 ft above sea level, in United States. The nearest listed city is Mandan, 90 mi away.

Topography around Dickinson

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Dickinson.

Within 2 miles, the terrain around Dickinson has only modest variations in elevation — a maximum elevation change of 243 ft around an average of 2,441 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 479 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,650 ft.

The land around Dickinson is covered by grassland (39%) and artificial surfaces (34%) within 2 miles, grassland (54%) and cropland (42%) within 10 miles, and grassland (64%) and cropland (34%) within 50 miles.

2 miles

243 ft

grassland 39%

10 miles

479 ft

grassland 54%

50 miles

1,650 ft

grassland 64%

treesgrasslandcroplandartificial surfacesbare terrainwater

← August Dickinson year-round climate October →Best places to visit in September

September weather nearby: Mandan 90 mi · Bismarck 95 mi · Williston 96 mi · Minot 117 mi · Jamestown 193 mi · Rapid City 194 mi · Gillette 222 mi · Aberdeen 228 mi

United States travel facts

Power plugs: Type A / B; 120 V · 60 Hz
Prices: ≈ 100% of US; price level, 2025
GDP per capita: $90,027; 2025
Happiness: 6.8 / 10; World Happiness, 2025
Safe drinking water: 98%; of population, 2024
Homicide rate: 5.8; per 100k, 2023
Road deaths: 12.7; per 100k/yr, 2019
Income group: High; World Bank
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Dickinson (46.8792°, -102.7896°, elevation 2,411 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°F)	Avg low (°F)
1	78	53
2	77	52
3	77	52
4	76	51
5	76	51
6	75	51
7	74	50
8	74	50
9	73	49
10	73	49
11	72	48
12	72	48
13	71	47
14	71	47
15	70	46
16	70	46
17	69	46
18	69	45
19	68	45
20	68	44
21	67	44
22	67	44
23	67	43
24	66	43
25	66	43
26	65	42
27	65	42
28	64	41
29	64	41
30	63	41

	Clearer (%)	Cloudier (%)
1	68	32
2	67	33
3	68	32
4	67	33
5	67	33
6	66	34
7	65	35
8	65	35
9	64	36
10	64	36
11	63	37
12	62	38
13	62	38
14	62	38
15	61	39
16	61	39
17	61	39
18	61	39
19	61	39
20	61	39
21	62	38
22	62	38
23	62	38
24	62	38
25	62	38
26	62	38
27	61	39
28	61	39
29	62	38
30	62	38

	Rain chance (%)	Snow chance (%)
1	20	0
2	20	0
3	20	0
4	20	0
5	20	0
6	21	0
7	21	0
8	21	0
9	21	0
10	22	0
11	22	0
12	22	0
13	22	0
14	23	0
15	23	0
16	23	0
17	23	0
18	22	0
19	22	0
20	21	0
21	21	0
22	21	0
23	20	1
24	20	1
25	20	1
26	19	1
27	19	1
28	19	1
29	19	2
30	18	2

	Dry (%)	Comfortable (%)	Humid (%)
1	80	14	6
2	81	13	6
3	81	13	6
4	83	12	5
5	84	11	5
6	85	10	5
7	86	10	4
8	87	9	4
9	88	8	4
10	89	8	3
11	90	7	3
12	90	7	3
13	92	6	2
14	92	6	2
15	93	5	2
16	94	5	1
17	94	5	1
18	95	4	1
19	95	4	1
20	96	3	1
21	96	3	1
22	97	2	1
23	98	2	0
24	98	2	0
25	99	1	0
26	99	1	0
27	99	1	0
28	100	0	0
29	100	0	0
30	100	0	0

	Avg high (°F)	Avg low (°F)
1	78	53
2	77	52
3	77	52
4	76	51
5	76	51
6	75	51
7	74	50
8	74	50
9	73	49
10	73	49
11	72	48
12	72	48
13	71	47
14	71	47
15	70	46
16	70	46
17	69	46
18	69	45
19	68	45
20	68	44
21	67	44
22	67	44
23	67	43
24	66	43
25	66	43
26	65	42
27	65	42
28	64	41
29	64	41
30	63	41

	Clearer (%)	Cloudier (%)
1	68	32
2	67	33
3	68	32
4	67	33
5	67	33
6	66	34
7	65	35
8	65	35
9	64	36
10	64	36
11	63	37
12	62	38
13	62	38
14	62	38
15	61	39
16	61	39
17	61	39
18	61	39
19	61	39
20	61	39
21	62	38
22	62	38
23	62	38
24	62	38
25	62	38
26	62	38
27	61	39
28	61	39
29	62	38
30	62	38

	Rain chance (%)	Snow chance (%)
1	20	0
2	20	0
3	20	0
4	20	0
5	20	0
6	21	0
7	21	0
8	21	0
9	21	0
10	22	0
11	22	0
12	22	0
13	22	0
14	23	0
15	23	0
16	23	0
17	23	0
18	22	0
19	22	0
20	21	0
21	21	0
22	21	0
23	20	1
24	20	1
25	20	1
26	19	1
27	19	1
28	19	1
29	19	2
30	18	2

	Dry (%)	Comfortable (%)	Humid (%)
1	80	14	6
2	81	13	6
3	81	13	6
4	83	12	5
5	84	11	5
6	85	10	5
7	86	10	4
8	87	9	4
9	88	8	4
10	89	8	3
11	90	7	3
12	90	7	3
13	92	6	2
14	92	6	2
15	93	5	2
16	94	5	1
17	94	5	1
18	95	4	1
19	95	4	1
20	96	3	1
21	96	3	1
22	97	2	1
23	98	2	0
24	98	2	0
25	99	1	0
26	99	1	0
27	99	1	0
28	100	0	0
29	100	0	0
30	100	0	0

	Avg high (°F)	Avg low (°F)
1	78	53
2	77	52
3	77	52
4	76	51
5	76	51
6	75	51
7	74	50
8	74	50
9	73	49
10	73	49
11	72	48
12	72	48
13	71	47
14	71	47
15	70	46
16	70	46
17	69	46
18	69	45
19	68	45
20	68	44
21	67	44
22	67	44
23	67	43
24	66	43
25	66	43
26	65	42
27	65	42
28	64	41
29	64	41
30	63	41

	Clearer (%)	Cloudier (%)
1	68	32
2	67	33
3	68	32
4	67	33
5	67	33
6	66	34
7	65	35
8	65	35
9	64	36
10	64	36
11	63	37
12	62	38
13	62	38
14	62	38
15	61	39
16	61	39
17	61	39
18	61	39
19	61	39
20	61	39
21	62	38
22	62	38
23	62	38
24	62	38
25	62	38
26	62	38
27	61	39
28	61	39
29	62	38
30	62	38

	Rain chance (%)	Snow chance (%)
1	20	0
2	20	0
3	20	0
4	20	0
5	20	0
6	21	0
7	21	0
8	21	0
9	21	0
10	22	0
11	22	0
12	22	0
13	22	0
14	23	0
15	23	0
16	23	0
17	23	0
18	22	0
19	22	0
20	21	0
21	21	0
22	21	0
23	20	1
24	20	1
25	20	1
26	19	1
27	19	1
28	19	1
29	19	2
30	18	2

	Dry (%)	Comfortable (%)	Humid (%)
1	80	14	6
2	81	13	6
3	81	13	6
4	83	12	5
5	84	11	5
6	85	10	5
7	86	10	4
8	87	9	4
9	88	8	4
10	89	8	3
11	90	7	3
12	90	7	3
13	92	6	2
14	92	6	2
15	93	5	2
16	94	5	1
17	94	5	1
18	95	4	1
19	95	4	1
20	96	3	1
21	96	3	1
22	97	2	1
23	98	2	0
24	98	2	0
25	99	1	0
26	99	1	0
27	99	1	0
28	100	0	0
29	100	0	0
30	100	0	0