Watertown weather in April

In April, Watertown sees average daytime highs of 53°F and overnight lows near 33°F, with 2.8 in of precipitation across 9.5 wet days and about 13.2 hours of daylight. It is the 7th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 47°F in the first days to 59°F by the end. The sky is clear or mostly clear about 27% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 30 min at the start of April to 13 h 54 min by month's end. Set against the rest of the year, April is Watertown's 8th-clearest and 7th-windiest month. For the whole year in context, see Watertown's year-round climate.

Daytime high: 53°; 7th warmest
Overnight low: 33°; 6th coldest
Precipitation: 2.8 in; 9.5 wet days
Daylight: 13 h 18 min; 5:51 AM – 7:06 PM
Cloud cover: 63%; 8th clearest
Wind: 11 mph; 7th windiest
Solar energy: 5.28 kWh/m²
Travel score: 3.0; out of 10

Watertown is city in and county seat of Codington County, South Dakota, United States.

Density: 329/km²; people per km²
Founded: 1879

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

← March Watertown 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 47°F in the first days to 59°F by the end.

A typical April day in Watertown reaches about 53°F in the afternoon and slips back to 33°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 36°F and 69°F. Set against its neighbours, April runs about 15°F warmer than March and about 13°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)	46	47	47	47	48	48	49	49	50	50	51	51	52	52	53	53	54	54	55	55	56	56	56	57	57	58	58	59	59	59
Avg low (°F)	28	28	29	29	29	30	30	30	31	31	32	32	32	33	33	34	34	35	35	35	36	36	36	37	37	38	38	38	39	39

	Avg high (°F)	Avg low (°F)
1	46	28
2	47	28
3	47	29
4	47	29
5	48	29
6	48	30
7	49	30
8	49	30
9	50	31
10	50	31
11	51	32
12	51	32
13	52	32
14	52	33
15	53	33
16	53	34
17	54	34
18	54	35
19	55	35
20	55	35
21	56	36
22	56	36
23	56	36
24	57	37
25	57	37
26	58	38
27	58	38
28	59	38
29	59	39
30	59	39

How April really feels in Watertown

Once humidity and wind are folded in, April averages 0 days that feel above 90°F and 29 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

The story in April is cold — wind chill drags the overnight "feels like" below the raw low.

Watertown weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 5th-wettest month here — the current month is highlighted below.

Month	High / Low (°F)	Rainfall (inches)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	21° / 6°	0.9	5.2	5.4	9	0.0
Feb	25° / 10°	0.8	4.6	4.6	10.1	0.0
Mar	38° / 21°	1.6	6	3.8	11.6	0.2
Apr	53° / 33°	2.8	9.5	3	13.2	3.0
May	66° / 46°	3.4	11.4	0.1	14.6	5.7
Jun	75° / 57°	4.4	12.2	0	15.3	6.5
Jul	80° / 62°	3.1	9.4	0	15.1	6.9
Aug	78° / 59°	3.2	9.3	0	13.9	7.1
Sep	71° / 50°	2.5	8	0	12.3	7.0
Oct	56° / 37°	2.2	6.9	1.2	10.7	4.1
Nov	40° / 24°	1.3	5	3.6	9.4	0.4
Dec	26° / 13°	0.9	5	5.4	8.7	0.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 15% of April, with mostly cloudy or overcast conditions the remaining 58%.

	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 (%)	42	42	42	42	42	42	42	42	42	42	42	42	42	42	41	41	41	41	42	42	42	42	43	44	44	44	44	44	44	44
Cloudier (%)	58	58	58	58	58	58	58	58	58	58	58	58	58	58	59	59	59	59	58	58	58	58	57	56	56	56	56	56	56	56

	Clearer (%)	Cloudier (%)
1	42	58
2	42	58
3	42	58
4	42	58
5	42	58
6	42	58
7	42	58
8	42	58
9	42	58
10	42	58
11	42	58
12	42	58
13	42	58
14	42	58
15	41	59
16	41	59
17	41	59
18	41	59
19	42	58
20	42	58
21	42	58
22	42	58
23	43	57
24	44	56
25	44	56
26	44	56
27	44	56
28	44	56
29	44	56
30	44	56

Chance of precipitation in April

Any precipitationSnow

Watertown gets around 2.8 in of rain and snow over 9.5 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 31% and peaks near 34% on the wettest days, and about 3 days bring snow. The odds climb toward the end of the month.

	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 (%)	24	25	26	27	27	28	29	29	30	30	31	31	32	33	33	33	34	34	34	34	34	34	34	33	33	33	33	33	33	34
Snow chance (%)	11	11	11	12	12	13	13	13	13	13	13	12	12	12	11	11	10	10	9	8	8	7	7	6	6	5	5	4	4	3

	Rain chance (%)	Snow chance (%)
1	24	11
2	25	11
3	26	11
4	27	12
5	27	12
6	28	13
7	29	13
8	29	13
9	30	13
10	30	13
11	31	13
12	31	12
13	32	12
14	33	12
15	33	11
16	33	11
17	34	10
18	34	10
19	34	9
20	34	8
21	34	8
22	34	7
23	34	7
24	33	6
25	33	6
26	33	5
27	33	5
28	33	4
29	33	4
30	34	3

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 100% 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 (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	99	99	99	98
Comfortable (%)	0	0	0	0	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	2

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	99	1
28	99	1
29	99	1
30	98	2

Wind in April

Winds average 11 mph in April.

Across April, 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)	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	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	11	light breeze
2	11	light breeze
3	11	light breeze
4	11	light breeze
5	11	light breeze
6	11	light breeze
7	11	light breeze
8	11	light breeze
9	11	light breeze
10	11	light breeze
11	11	light breeze
12	11	light breeze
13	11	light breeze
14	11	light breeze
15	11	light breeze
16	11	light breeze
17	11	light breeze
18	11	light breeze
19	11	light breeze
20	11	light breeze
21	11	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 30 min at the start of April to 13 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 84 minutes over April. Sunrise moves from 6:19 AM to 5:27 AM, and sunset from 6:47 PM to 7:24 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)	12.5	12.5	12.6	12.6	12.7	12.7	12.8	12.8	12.9	12.9	13.0	13.0	13.1	13.2	13.2	13.3	13.3	13.4	13.4	13.5	13.5	13.6	13.6	13.7	13.7	13.8	13.8	13.9	13.9	13.9
Sunrise (AM)	6:19	6:17	6:15	6:13	6:11	6:10	6:08	6:06	6:04	6:02	6:00	5:58	5:56	5:55	5:53	5:51	5:49	5:47	5:46	5:44	5:42	5:41	5:39	5:37	5:35	5:34	5:32	5:31	5:29	5:27
Sunset (PM)	6:47	6:48	6:50	6:51	6:52	6:54	6:55	6:56	6:57	6:59	7:00	7:01	7:02	7:04	7:05	7:06	7:08	7:09	7:10	7:11	7:13	7:14	7:15	7:17	7:18	7:19	7:20	7:22	7:23	7:24

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.5	6:19	6:47
2	12.5	6:17	6:48
3	12.6	6:15	6:50
4	12.6	6:13	6:51
5	12.7	6:11	6:52
6	12.7	6:10	6:54
7	12.8	6:08	6:55
8	12.8	6:06	6:56
9	12.9	6:04	6:57
10	12.9	6:02	6:59
11	13.0	6:00	7:00
12	13.0	5:58	7:01
13	13.1	5:56	7:02
14	13.2	5:55	7:04
15	13.2	5:53	7:05
16	13.3	5:51	7:06
17	13.3	5:49	7:08
18	13.4	5:47	7:09
19	13.4	5:46	7:10
20	13.5	5:44	7:11
21	13.5	5:42	7:13
22	13.6	5:41	7:14
23	13.6	5:39	7:15
24	13.7	5:37	7:17
25	13.7	5:35	7:18
26	13.8	5:34	7:19
27	13.8	5:32	7:20
28	13.9	5:31	7:22
29	13.9	5:29	7:23
30	13.9	5:27	7:24

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.28 kWh/m².

For context, solar energy here swings from a low near 1.56 kWh/m² to a high of 6.64 kWh/m² in July across the year — April's 5.28 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)	4.8	4.8	4.9	4.9	5.0	5.0	5.0	5.0	5.1	5.1	5.1	5.2	5.2	5.2	5.3	5.3	5.3	5.3	5.4	5.4	5.4	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.6	5.6
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	4.8	Bright
2	4.8	Bright
3	4.9	Bright
4	4.9	Bright
5	5.0	Bright
6	5.0	Bright
7	5.0	Bright
8	5.0	Bright
9	5.1	Bright
10	5.1	Bright
11	5.1	Bright
12	5.2	Bright
13	5.2	Bright
14	5.2	Bright
15	5.3	Bright
16	5.3	Bright
17	5.3	Bright
18	5.3	Bright
19	5.4	Bright
20	5.4	Bright
21	5.4	Bright
22	5.5	Bright
23	5.5	Bright
24	5.5	Bright
25	5.5	Bright
26	5.5	Bright
27	5.5	Bright
28	5.5	Bright
29	5.6	Bright
30	5.6	Bright

Planning a trip in April

Hazard calendar for Watertown

In seasonPeak

In April, Watertown sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Watertown sits in the Atlantic hurricane belt; the season peaks August–October.

Watertown's rainy season runs April–October, when most of the year's rain falls.

Atlantic hurricane

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is April a good time to visit Watertown?

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

3.0

Sightseeing

7th-best month of the year

0.0

Beach & pool

7th-best month of the year

April is a weaker month for outdoor sightseeing in Watertown.

What to pack for Watertown in April

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

In April, Watertown sees daytime highs around 53°F and nights near 33°F. Pack a warm layer. Worth having: rain gear and sun protection. About 10 days see rain.

a warm layerrain gearsun protection

UV index in Watertown in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 Watertown peaks around June 19 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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	4	5	6	9	8	6	6	4	2	1
Level	Low	Moderate	Moderate	Moderate	High	Very high	Very high	High	High	Moderate	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	2	Moderate
Mar	4	Moderate
Apr	5	Moderate
May	6	High
Jun	9	Very high
Jul	8	Very high
Aug	6	High
Sep	6	High
Oct	4	Moderate
Nov	2	Low
Dec	1	Low

Location & terrain

Where is Watertown?

Watertown sits at 44.9°N, 97.1°W, 1,732 ft above sea level, in United States. The nearest listed city is Brookings, 43 mi away.

Topography around Watertown

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

Within 2 miles, the terrain around Watertown has only modest variations in elevation — a maximum elevation change of 115 ft around an average of 1,736 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 344 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,237 ft.

The land around Watertown is covered by grassland (38%) and artificial surfaces (29%) within 2 miles, cropland (58%) and grassland (28%) within 10 miles, and cropland (62%) and grassland (29%) within 50 miles.

2 miles

115 ft

grassland 38%

10 miles

344 ft

cropland 58%

50 miles

1,237 ft

cropland 62%

treesgrasslandcroplandartificial surfacesbare terrainwater

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

April weather nearby: Brookings 43 mi · Aberdeen 78 mi · Mitchell 94 mi · Sioux Falls 96 mi · Willmar 103 mi · West Fargo 137 mi · Moorhead 137 mi · Fargo 137 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 Watertown (44.8994°, -97.1151°, elevation 1,732 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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	46	28
2	47	28
3	47	29
4	47	29
5	48	29
6	48	30
7	49	30
8	49	30
9	50	31
10	50	31
11	51	32
12	51	32
13	52	32
14	52	33
15	53	33
16	53	34
17	54	34
18	54	35
19	55	35
20	55	35
21	56	36
22	56	36
23	56	36
24	57	37
25	57	37
26	58	38
27	58	38
28	59	38
29	59	39
30	59	39

	Clearer (%)	Cloudier (%)
1	42	58
2	42	58
3	42	58
4	42	58
5	42	58
6	42	58
7	42	58
8	42	58
9	42	58
10	42	58
11	42	58
12	42	58
13	42	58
14	42	58
15	41	59
16	41	59
17	41	59
18	41	59
19	42	58
20	42	58
21	42	58
22	42	58
23	43	57
24	44	56
25	44	56
26	44	56
27	44	56
28	44	56
29	44	56
30	44	56

	Rain chance (%)	Snow chance (%)
1	24	11
2	25	11
3	26	11
4	27	12
5	27	12
6	28	13
7	29	13
8	29	13
9	30	13
10	30	13
11	31	13
12	31	12
13	32	12
14	33	12
15	33	11
16	33	11
17	34	10
18	34	10
19	34	9
20	34	8
21	34	8
22	34	7
23	34	7
24	33	6
25	33	6
26	33	5
27	33	5
28	33	4
29	33	4
30	34	3

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	99	1
28	99	1
29	99	1
30	98	2

	Avg high (°F)	Avg low (°F)
1	46	28
2	47	28
3	47	29
4	47	29
5	48	29
6	48	30
7	49	30
8	49	30
9	50	31
10	50	31
11	51	32
12	51	32
13	52	32
14	52	33
15	53	33
16	53	34
17	54	34
18	54	35
19	55	35
20	55	35
21	56	36
22	56	36
23	56	36
24	57	37
25	57	37
26	58	38
27	58	38
28	59	38
29	59	39
30	59	39

	Clearer (%)	Cloudier (%)
1	42	58
2	42	58
3	42	58
4	42	58
5	42	58
6	42	58
7	42	58
8	42	58
9	42	58
10	42	58
11	42	58
12	42	58
13	42	58
14	42	58
15	41	59
16	41	59
17	41	59
18	41	59
19	42	58
20	42	58
21	42	58
22	42	58
23	43	57
24	44	56
25	44	56
26	44	56
27	44	56
28	44	56
29	44	56
30	44	56

	Rain chance (%)	Snow chance (%)
1	24	11
2	25	11
3	26	11
4	27	12
5	27	12
6	28	13
7	29	13
8	29	13
9	30	13
10	30	13
11	31	13
12	31	12
13	32	12
14	33	12
15	33	11
16	33	11
17	34	10
18	34	10
19	34	9
20	34	8
21	34	8
22	34	7
23	34	7
24	33	6
25	33	6
26	33	5
27	33	5
28	33	4
29	33	4
30	34	3

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	99	1
28	99	1
29	99	1
30	98	2

	Avg high (°F)	Avg low (°F)
1	46	28
2	47	28
3	47	29
4	47	29
5	48	29
6	48	30
7	49	30
8	49	30
9	50	31
10	50	31
11	51	32
12	51	32
13	52	32
14	52	33
15	53	33
16	53	34
17	54	34
18	54	35
19	55	35
20	55	35
21	56	36
22	56	36
23	56	36
24	57	37
25	57	37
26	58	38
27	58	38
28	59	38
29	59	39
30	59	39

	Clearer (%)	Cloudier (%)
1	42	58
2	42	58
3	42	58
4	42	58
5	42	58
6	42	58
7	42	58
8	42	58
9	42	58
10	42	58
11	42	58
12	42	58
13	42	58
14	42	58
15	41	59
16	41	59
17	41	59
18	41	59
19	42	58
20	42	58
21	42	58
22	42	58
23	43	57
24	44	56
25	44	56
26	44	56
27	44	56
28	44	56
29	44	56
30	44	56

	Rain chance (%)	Snow chance (%)
1	24	11
2	25	11
3	26	11
4	27	12
5	27	12
6	28	13
7	29	13
8	29	13
9	30	13
10	30	13
11	31	13
12	31	12
13	32	12
14	33	12
15	33	11
16	33	11
17	34	10
18	34	10
19	34	9
20	34	8
21	34	8
22	34	7
23	34	7
24	33	6
25	33	6
26	33	5
27	33	5
28	33	4
29	33	4
30	34	3

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	99	1
28	99	1
29	99	1
30	98	2