Duncan weather in April

In April, Duncan sees average daytime highs of 73°F and overnight lows near 52°F, with 3.6 in of rain across 7.9 wet days and about 12.8 hours of daylight. It is the 7th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 70°F in the first days to 76°F by the end. The sky is clear or mostly clear about 48% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 18 min at the start of April to 13 h 18 min by month's end. Set against the rest of the year, April is Duncan's 8th-clearest and 1st-windiest month. For the whole year in context, see Duncan's year-round climate.

Daytime high: 73°; 7th warmest
Overnight low: 52°; 6th coldest
Rainfall: 3.6 in; 7.9 wet days
Daylight: 12 h 54 min; 6:06 AM – 6:58 PM
Cloud cover: 47%; 8th clearest
Wind: 10 mph; 1st windiest
Solar energy: 5.84 kWh/m²
Travel score: 7.3; out of 10

Duncan is city and county seat of Stephens County, Oklahoma, United States.

Density: 188/km²; people per km²
Founded: 1892

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

← March Duncan year-round climate May →Best places to visit in April

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 70°F in the first days to 76°F by the end.

A typical April day in Duncan reaches about 73°F in the afternoon and slips back to 52°F overnight — a 21°F spread between the day's warmth and the night's chill. On most days the high lands between 61°F and 84°F. Set against its neighbours, April runs about 8°F warmer than March and about 8°F cooler than May.

	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)	70	70	70	71	71	71	71	72	72	72	73	73	73	73	73	74	74	74	74	74	74	75	75	75	75	75	76	76	76	76
Avg low (°F)	48	49	49	49	49	49	50	50	50	51	51	51	51	52	52	52	52	53	53	53	53	53	54	54	54	54	55	55	55	56

	Avg high (°F)	Avg low (°F)
1	70	48
2	70	49
3	70	49
4	71	49
5	71	49
6	71	49
7	71	50
8	72	50
9	72	50
10	72	51
11	73	51
12	73	51
13	73	51
14	73	52
15	73	52
16	74	52
17	74	52
18	74	53
19	74	53
20	74	53
21	74	53
22	75	53
23	75	54
24	75	54
25	75	54
26	75	54
27	76	55
28	76	55
29	76	55
30	76	56

How April really feels in Duncan

Once humidity and wind are folded in, April 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

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

Duncan weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 3rd-wettest month here — the current month is highlighted below.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	52° / 32°	1.5	4.8	0.9	10	3.2
Feb	56° / 36°	1.8	5.8	0.9	10.7	4.4
Mar	65° / 44°	3.1	7.6	0.4	11.7	6.4
Apr	73° / 52°	3.6	7.9	0	12.8	7.3
May	81° / 62°	4.7	10.6	0	13.8	6.3
Jun	89° / 70°	3.6	8.6	0	14.3	4.4
Jul	94° / 74°	1.8	5.8	0	14.1	3.2
Aug	93° / 73°	1.9	5.6	0	13.3	3.4
Sep	85° / 65°	2.8	6.4	0	12.2	5.8
Oct	74° / 54°	3.5	6.8	0	11.1	7.6
Nov	62° / 42°	2.1	5.5	0.2	10.2	6.2
Dec	53° / 34°	2.0	5.2	0.8	9.7	3.5

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 11% of April, with mostly cloudy or overcast conditions the remaining 41%.

	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 (%)	59	59	59	59	59	59	60	60	60	60	60	60	60	60	60	60	60	60	59	59	59	59	58	58	58	58	58	57	57	57
Cloudier (%)	41	41	41	41	41	41	40	40	40	40	40	40	40	40	40	40	40	40	41	41	41	41	42	42	42	42	42	43	43	43

	Clearer (%)	Cloudier (%)
1	59	41
2	59	41
3	59	41
4	59	41
5	59	41
6	59	41
7	60	40
8	60	40
9	60	40
10	60	40
11	60	40
12	60	40
13	60	40
14	60	40
15	60	40
16	60	40
17	60	40
18	60	40
19	59	41
20	59	41
21	59	41
22	59	41
23	58	42
24	58	42
25	58	42
26	58	42
27	58	42
28	57	43
29	57	43
30	57	43

Chance of precipitation in April

Any precipitation

Duncan gets around 3.6 in of rain over 7.9 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 27% and peaks near 31% on the wettest days.

	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 (%)	25	25	25	24	24	24	25	25	25	25	25	25	26	26	27	27	27	28	28	28	28	29	29	29	29	29	30	30	30	31

	Rain chance (%)
1	25
2	25
3	25
4	24
5	24
6	24
7	25
8	25
9	25
10	25
11	25
12	25
13	26
14	26
15	27
16	27
17	27
18	28
19	28
20	28
21	28
22	29
23	29
24	29
25	29
26	29
27	30
28	30
29	30
30	31

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 72% 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 (%)	82	82	81	80	79	79	78	78	77	77	75	75	73	73	73	72	72	71	70	70	70	69	69	69	67	66	65	63	61	59
Comfortable (%)	10	10	11	11	12	12	13	13	14	14	15	15	16	16	16	16	16	16	16	16	16	16	16	16	17	17	17	17	17	17
Humid (%)	7	7	7	8	8	8	8	8	8	8	9	9	10	10	10	11	11	11	12	12	12	13	13	13	14	14	15	16	17	18
Muggy (%)	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	2	2	2	2	2	2	2	2	3	3	4	5	6

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	82	10	7	1
2	82	10	7	1
3	81	11	7	1
4	80	11	8	1
5	79	12	8	1
6	79	12	8	1
7	78	13	8	1
8	78	13	8	1
9	77	14	8	1
10	77	14	8	1
11	75	15	9	1
12	75	15	9	1
13	73	16	10	1
14	73	16	10	1
15	73	16	10	1
16	72	16	11	1
17	72	16	11	1
18	71	16	11	2
19	70	16	12	2
20	70	16	12	2
21	70	16	12	2
22	69	16	13	2
23	69	16	13	2
24	69	16	13	2
25	67	17	14	2
26	66	17	14	3
27	65	17	15	3
28	63	17	16	4
29	61	17	17	5
30	59	17	18	6

Wind in April

Winds average 10 mph in April, the windiest month of the year.

Across April, daily wind ranges from about 10 mph on the calmest days to 10 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	10	10	10	10	10	10	10	10	10
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	10	light breeze
23	10	light breeze
24	10	light breeze
25	10	light breeze
26	10	light breeze
27	10	light breeze
28	10	light breeze
29	10	light breeze
30	10	light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 18 min at the start of April to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over April. Sunrise moves from 6:27 AM to 5:49 AM, and sunset from 6:46 PM to 7:09 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)	12.3	12.4	12.4	12.4	12.5	12.5	12.5	12.6	12.6	12.7	12.7	12.7	12.8	12.8	12.8	12.9	12.9	12.9	13.0	13.0	13.0	13.1	13.1	13.1	13.2	13.2	13.2	13.3	13.3	13.3
Sunrise (AM)	6:27	6:25	6:24	6:23	6:21	6:20	6:18	6:17	6:16	6:14	6:13	6:11	6:10	6:09	6:07	6:06	6:05	6:04	6:02	6:01	6:00	5:59	5:57	5:56	5:55	5:54	5:53	5:51	5:50	5:49
Sunset (PM)	6:46	6:47	6:48	6:49	6:49	6:50	6:51	6:52	6:52	6:53	6:54	6:55	6:56	6:56	6:57	6:58	6:59	7:00	7:00	7:01	7:02	7:03	7:04	7:04	7:05	7:06	7:07	7:08	7:08	7:09

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.3	6:27	6:46
2	12.4	6:25	6:47
3	12.4	6:24	6:48
4	12.4	6:23	6:49
5	12.5	6:21	6:49
6	12.5	6:20	6:50
7	12.5	6:18	6:51
8	12.6	6:17	6:52
9	12.6	6:16	6:52
10	12.7	6:14	6:53
11	12.7	6:13	6:54
12	12.7	6:11	6:55
13	12.8	6:10	6:56
14	12.8	6:09	6:56
15	12.8	6:07	6:57
16	12.9	6:06	6:58
17	12.9	6:05	6:59
18	12.9	6:04	7:00
19	13.0	6:02	7:00
20	13.0	6:01	7:01
21	13.0	6:00	7:02
22	13.1	5:59	7:03
23	13.1	5:57	7:04
24	13.1	5:56	7:04
25	13.2	5:55	7:05
26	13.2	5:54	7:06
27	13.2	5:53	7:07
28	13.3	5:51	7:08
29	13.3	5:50	7:08
30	13.3	5:49	7:09

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.84 kWh/m².

For context, solar energy here swings from a low near 2.59 kWh/m² to a high of 6.94 kWh/m² in July across the year — April's 5.84 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)	5.4	5.5	5.5	5.5	5.6	5.6	5.6	5.7	5.7	5.7	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.9	6.0	6.0	6.0	6.0	6.0
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	5.4	Bright
2	5.5	Bright
3	5.5	Bright
4	5.5	Bright
5	5.6	Bright
6	5.6	Bright
7	5.6	Bright
8	5.7	Bright
9	5.7	Bright
10	5.7	Bright
11	5.8	Bright
12	5.8	Bright
13	5.8	Bright
14	5.8	Bright
15	5.8	Bright
16	5.8	Bright
17	5.8	Bright
18	5.9	Bright
19	5.9	Bright
20	5.9	Bright
21	5.9	Bright
22	5.9	Bright
23	5.9	Bright
24	5.9	Bright
25	5.9	Bright
26	6.0	Bright
27	6.0	Bright
28	6.0	Bright
29	6.0	Bright
30	6.0	Bright

Planning a trip in April

Is April a good time to visit Duncan?

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

7.3

Sightseeing

2nd-best month of the year

5.5

Beach & pool

7th-best month of the year

April is one of the better times to visit Duncan for general sightseeing.

What to pack for Duncan in April

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

In April, Duncan sees daytime highs around 73°F and nights near 52°F. Worth packing: light clothes and sun protection. About 8 days see rain.

light clothessun protection

UV index in Duncan in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Duncan peaks around June 23 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	3	5	6	9	9	10	10	10	7	6	4	3
Level	Moderate	Moderate	High	Very high	Very high	Extreme	Extreme	Very high	Very high	High	Moderate	Moderate

	UV index (midday)	Level
Jan	3	Moderate
Feb	5	Moderate
Mar	6	High
Apr	9	Very high
May	9	Very high
Jun	10	Extreme
Jul	10	Extreme
Aug	10	Very high
Sep	7	Very high
Oct	6	High
Nov	4	Moderate
Dec	3	Moderate

Location & terrain

Where is Duncan?

Duncan sits at 34.5°N, 98.0°W, 1,122 ft above sea level, in United States. The nearest listed city is Lawton, 25 mi away.

Topography around Duncan

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

Within 2 miles, the terrain around Duncan has only modest variations in elevation — a maximum elevation change of 167 ft around an average of 1,125 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 367 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,716 ft.

The land around Duncan is covered by grassland (39%), trees (29%) and artificial surfaces (27%) within 2 miles, grassland (64%) and trees (25%) within 10 miles, and grassland (66%) within 50 miles.

2 miles

167 ft

grassland 39%

10 miles

367 ft

grassland 64%

50 miles

1,716 ft

grassland 66%

treesgrasslandcroplandartificial surfacesbare terrainwater

← March Duncan year-round climate May →Best places to visit in April

April weather nearby: Lawton 25 mi · Chickasha 38 mi · Wichita Falls 51 mi · Ardmore 52 mi · Norman 58 mi · Mustang 62 mi · Moore 64 mi · Yukon 70 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 Duncan (34.5023°, -97.9578°, elevation 1,122 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	70	48
2	70	49
3	70	49
4	71	49
5	71	49
6	71	49
7	71	50
8	72	50
9	72	50
10	72	51
11	73	51
12	73	51
13	73	51
14	73	52
15	73	52
16	74	52
17	74	52
18	74	53
19	74	53
20	74	53
21	74	53
22	75	53
23	75	54
24	75	54
25	75	54
26	75	54
27	76	55
28	76	55
29	76	55
30	76	56

	Clearer (%)	Cloudier (%)
1	59	41
2	59	41
3	59	41
4	59	41
5	59	41
6	59	41
7	60	40
8	60	40
9	60	40
10	60	40
11	60	40
12	60	40
13	60	40
14	60	40
15	60	40
16	60	40
17	60	40
18	60	40
19	59	41
20	59	41
21	59	41
22	59	41
23	58	42
24	58	42
25	58	42
26	58	42
27	58	42
28	57	43
29	57	43
30	57	43

	Rain chance (%)
1	25
2	25
3	25
4	24
5	24
6	24
7	25
8	25
9	25
10	25
11	25
12	25
13	26
14	26
15	27
16	27
17	27
18	28
19	28
20	28
21	28
22	29
23	29
24	29
25	29
26	29
27	30
28	30
29	30
30	31

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	82	10	7	1
2	82	10	7	1
3	81	11	7	1
4	80	11	8	1
5	79	12	8	1
6	79	12	8	1
7	78	13	8	1
8	78	13	8	1
9	77	14	8	1
10	77	14	8	1
11	75	15	9	1
12	75	15	9	1
13	73	16	10	1
14	73	16	10	1
15	73	16	10	1
16	72	16	11	1
17	72	16	11	1
18	71	16	11	2
19	70	16	12	2
20	70	16	12	2
21	70	16	12	2
22	69	16	13	2
23	69	16	13	2
24	69	16	13	2
25	67	17	14	2
26	66	17	14	3
27	65	17	15	3
28	63	17	16	4
29	61	17	17	5
30	59	17	18	6

	Avg high (°F)	Avg low (°F)
1	70	48
2	70	49
3	70	49
4	71	49
5	71	49
6	71	49
7	71	50
8	72	50
9	72	50
10	72	51
11	73	51
12	73	51
13	73	51
14	73	52
15	73	52
16	74	52
17	74	52
18	74	53
19	74	53
20	74	53
21	74	53
22	75	53
23	75	54
24	75	54
25	75	54
26	75	54
27	76	55
28	76	55
29	76	55
30	76	56

	Clearer (%)	Cloudier (%)
1	59	41
2	59	41
3	59	41
4	59	41
5	59	41
6	59	41
7	60	40
8	60	40
9	60	40
10	60	40
11	60	40
12	60	40
13	60	40
14	60	40
15	60	40
16	60	40
17	60	40
18	60	40
19	59	41
20	59	41
21	59	41
22	59	41
23	58	42
24	58	42
25	58	42
26	58	42
27	58	42
28	57	43
29	57	43
30	57	43

	Rain chance (%)
1	25
2	25
3	25
4	24
5	24
6	24
7	25
8	25
9	25
10	25
11	25
12	25
13	26
14	26
15	27
16	27
17	27
18	28
19	28
20	28
21	28
22	29
23	29
24	29
25	29
26	29
27	30
28	30
29	30
30	31

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	82	10	7	1
2	82	10	7	1
3	81	11	7	1
4	80	11	8	1
5	79	12	8	1
6	79	12	8	1
7	78	13	8	1
8	78	13	8	1
9	77	14	8	1
10	77	14	8	1
11	75	15	9	1
12	75	15	9	1
13	73	16	10	1
14	73	16	10	1
15	73	16	10	1
16	72	16	11	1
17	72	16	11	1
18	71	16	11	2
19	70	16	12	2
20	70	16	12	2
21	70	16	12	2
22	69	16	13	2
23	69	16	13	2
24	69	16	13	2
25	67	17	14	2
26	66	17	14	3
27	65	17	15	3
28	63	17	16	4
29	61	17	17	5
30	59	17	18	6

	Avg high (°F)	Avg low (°F)
1	70	48
2	70	49
3	70	49
4	71	49
5	71	49
6	71	49
7	71	50
8	72	50
9	72	50
10	72	51
11	73	51
12	73	51
13	73	51
14	73	52
15	73	52
16	74	52
17	74	52
18	74	53
19	74	53
20	74	53
21	74	53
22	75	53
23	75	54
24	75	54
25	75	54
26	75	54
27	76	55
28	76	55
29	76	55
30	76	56

	Clearer (%)	Cloudier (%)
1	59	41
2	59	41
3	59	41
4	59	41
5	59	41
6	59	41
7	60	40
8	60	40
9	60	40
10	60	40
11	60	40
12	60	40
13	60	40
14	60	40
15	60	40
16	60	40
17	60	40
18	60	40
19	59	41
20	59	41
21	59	41
22	59	41
23	58	42
24	58	42
25	58	42
26	58	42
27	58	42
28	57	43
29	57	43
30	57	43

	Rain chance (%)
1	25
2	25
3	25
4	24
5	24
6	24
7	25
8	25
9	25
10	25
11	25
12	25
13	26
14	26
15	27
16	27
17	27
18	28
19	28
20	28
21	28
22	29
23	29
24	29
25	29
26	29
27	30
28	30
29	30
30	31

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	82	10	7	1
2	82	10	7	1
3	81	11	7	1
4	80	11	8	1
5	79	12	8	1
6	79	12	8	1
7	78	13	8	1
8	78	13	8	1
9	77	14	8	1
10	77	14	8	1
11	75	15	9	1
12	75	15	9	1
13	73	16	10	1
14	73	16	10	1
15	73	16	10	1
16	72	16	11	1
17	72	16	11	1
18	71	16	11	2
19	70	16	12	2
20	70	16	12	2
21	70	16	12	2
22	69	16	13	2
23	69	16	13	2
24	69	16	13	2
25	67	17	14	2
26	66	17	14	3
27	65	17	15	3
28	63	17	16	4
29	61	17	17	5
30	59	17	18	6