Superior weather in April

In April, Superior sees average daytime highs of 41°F and overnight lows near 31°F, with 3.3 in of precipitation across 10.2 wet days and about 13.3 hours of daylight. It is the 7th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 37°F in the first days to 46°F by the end. The sky is clear or mostly clear about 25% 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 14 h 06 min by month's end. Set against the rest of the year, April is Superior's 8th-clearest and 7th-windiest month. For the whole year in context, see Superior's year-round climate.

Daytime high: 41°; 7th warmest
Overnight low: 31°; 6th coldest
Precipitation: 3.3 in; 10.2 wet days
Daylight: 13 h 18 min; 5:28 AM – 6:49 PM
Cloud cover: 65%; 8th clearest
Wind: 10 mph; 7th windiest
Solar energy: 5.14 kWh/m²
Travel score: 0.4; out of 10

Superior is city in and county seat of Douglas County, Wisconsin, United States.

Density: 185/km²; people per km²
Founded: 1854

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

← March Superior 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 37°F in the first days to 46°F by the end.

A typical April day in Superior reaches about 41°F in the afternoon and slips back to 31°F overnight — a 11°F spread between the day's warmth and the night's chill. On most days the high lands between 33°F and 51°F. Set against its neighbours, April runs about 10°F warmer than March and about 11°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)	37	37	37	38	38	38	38	39	39	39	40	40	40	41	41	41	42	42	42	43	43	44	44	44	45	45	45	46	46	46
Avg low (°F)	26	27	27	27	27	28	28	28	29	29	29	29	30	30	30	31	31	31	32	32	33	33	33	34	34	34	35	35	35	36

	Avg high (°F)	Avg low (°F)
1	37	26
2	37	27
3	37	27
4	38	27
5	38	27
6	38	28
7	38	28
8	39	28
9	39	29
10	39	29
11	40	29
12	40	29
13	40	30
14	41	30
15	41	30
16	41	31
17	42	31
18	42	31
19	42	32
20	43	32
21	43	33
22	44	33
23	44	33
24	44	34
25	45	34
26	45	34
27	45	35
28	46	35
29	46	35
30	46	36

How April really feels in Superior

Once humidity and wind are folded in, April averages 0 days that feel above 90°F and 30 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.

Superior weather by month

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

Month	High / Low (°F)	Rainfall (inches)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	19° / 8°	1.0	6.3	6.9	8.8	0.0
Feb	22° / 10°	1.1	5.3	5.6	10	0.0
Mar	31° / 20°	1.9	7.3	5.1	11.6	0.0
Apr	41° / 31°	3.3	10.2	4.2	13.3	0.4
May	53° / 42°	3.8	11.1	0.5	14.8	2.9
Jun	65° / 55°	4.1	11.6	0	15.6	5.5
Jul	73° / 64°	3.9	11.7	0	15.3	6.7
Aug	73° / 64°	4.0	10.5	0	14	6.9
Sep	66° / 56°	3.6	10.7	0	12.4	5.9
Oct	52° / 44°	4.1	10.8	0.8	10.6	2.8
Nov	38° / 30°	2.6	8.9	5	9.2	0.1
Dec	26° / 17°	1.8	7.4	7.8	8.4	0.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 14% of April, with mostly cloudy or overcast conditions the remaining 61%.

	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 (%)	38	38	38	37	36	36	36	36	36	36	37	37	39	39	39	40	40	40	40	41	42	42	41	42	42	42	42	42	42	41
Cloudier (%)	62	62	62	63	64	64	64	64	64	64	63	63	61	61	61	60	60	60	60	59	58	58	59	58	58	58	58	58	58	59

	Clearer (%)	Cloudier (%)
1	38	62
2	38	62
3	38	62
4	37	63
5	36	64
6	36	64
7	36	64
8	36	64
9	36	64
10	36	64
11	37	63
12	37	63
13	39	61
14	39	61
15	39	61
16	40	60
17	40	60
18	40	60
19	40	60
20	41	59
21	42	58
22	42	58
23	41	59
24	42	58
25	42	58
26	42	58
27	42	58
28	42	58
29	42	58
30	41	59

Chance of precipitation in April

Any precipitationSnow

Superior gets around 3.3 in of rain and snow over 10.2 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 33% and peaks near 34% on the wettest days, and about 4 days bring 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 (%)	32	33	33	34	34	34	34	34	34	34	34	34	34	34	34	34	34	34	34	34	34	34	33	33	33	32	32	32	31	31
Snow chance (%)	17	17	18	18	18	18	17	17	17	16	16	15	15	15	14	14	14	13	13	12	12	11	11	10	10	10	9	9	8	8

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

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	100	100	100	100

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

Wind in April

Winds average 10 mph in April.

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 30 min at the start of April to 14 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 96 minutes over April. Sunrise moves from 5:58 AM to 5:03 AM, and sunset from 6:28 PM to 7:08 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	12.6	12.6	12.7	12.7	12.8	12.8	12.9	13.0	13.0	13.1	13.1	13.2	13.2	13.3	13.3	13.4	13.4	13.5	13.6	13.6	13.7	13.7	13.8	13.8	13.9	13.9	14.0	14.0	14.1
Sunrise (AM)	5:58	5:56	5:54	5:52	5:50	5:48	5:46	5:44	5:42	5:40	5:38	5:36	5:34	5:32	5:30	5:28	5:27	5:25	5:23	5:21	5:19	5:17	5:16	5:14	5:12	5:10	5:09	5:07	5:05	5:03
Sunset (PM)	6:28	6:29	6:31	6:32	6:34	6:35	6:36	6:38	6:39	6:40	6:42	6:43	6:45	6:46	6:47	6:49	6:50	6:52	6:53	6:54	6:56	6:57	6:58	7:00	7:01	7:03	7:04	7:05	7:07	7:08

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.5	5:58	6:28
2	12.6	5:56	6:29
3	12.6	5:54	6:31
4	12.7	5:52	6:32
5	12.7	5:50	6:34
6	12.8	5:48	6:35
7	12.8	5:46	6:36
8	12.9	5:44	6:38
9	13.0	5:42	6:39
10	13.0	5:40	6:40
11	13.1	5:38	6:42
12	13.1	5:36	6:43
13	13.2	5:34	6:45
14	13.2	5:32	6:46
15	13.3	5:30	6:47
16	13.3	5:28	6:49
17	13.4	5:27	6:50
18	13.4	5:25	6:52
19	13.5	5:23	6:53
20	13.6	5:21	6:54
21	13.6	5:19	6:56
22	13.7	5:17	6:57
23	13.7	5:16	6:58
24	13.8	5:14	7:00
25	13.8	5:12	7:01
26	13.9	5:10	7:03
27	13.9	5:09	7:04
28	14.0	5:07	7:05
29	14.0	5:05	7:07
30	14.1	5:03	7:08

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.14 kWh/m².

For context, solar energy here swings from a low near 1.21 kWh/m² to a high of 6.06 kWh/m² in July across the year — April's 5.14 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)	4.7	4.7	4.7	4.8	4.8	4.8	4.9	4.9	5.0	5.0	5.0	5.1	5.1	5.1	5.2	5.2	5.2	5.2	5.3	5.3	5.3	5.3	5.3	5.4	5.4	5.4	5.4	5.4	5.4	5.4
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	4.7	Bright
2	4.7	Bright
3	4.7	Bright
4	4.8	Bright
5	4.8	Bright
6	4.8	Bright
7	4.9	Bright
8	4.9	Bright
9	5.0	Bright
10	5.0	Bright
11	5.0	Bright
12	5.1	Bright
13	5.1	Bright
14	5.1	Bright
15	5.2	Bright
16	5.2	Bright
17	5.2	Bright
18	5.2	Bright
19	5.3	Bright
20	5.3	Bright
21	5.3	Bright
22	5.3	Bright
23	5.3	Bright
24	5.4	Bright
25	5.4	Bright
26	5.4	Bright
27	5.4	Bright
28	5.4	Bright
29	5.4	Bright
30	5.4	Bright

Planning a trip in April

Is April a good time to visit Superior?

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

0.4

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 Superior.

What to pack for Superior in April

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

In April, Superior sees daytime highs around 41°F and nights near 31°F. Pack a warm layer. Worth having: a heavy coat, rain gear and sun protection. About 10 days see rain.

a warm layera heavy coatrain gearsun protection

Sea temperature near Superior in April

The nearest coast averages about 36°F in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 12 mi away) is warmest in August at about 63°F and coldest in February near 34°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°F)	36	34	34	36	38	44	55	63	58	50	43	38
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Cool	Bracing	Bracing	Bracing	Bracing

	Sea temperature (°F)	Comfort
Jan	36	Bracing
Feb	34	Bracing
Mar	34	Bracing
Apr	36	Bracing
May	38	Bracing
Jun	44	Bracing
Jul	55	Bracing
Aug	63	Cool
Sep	58	Bracing
Oct	50	Bracing
Nov	43	Bracing
Dec	38	Bracing

UV index in Superior 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 Superior peaks around June 17 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 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	7	7	5	3	2	1
Level	Low	Low	Moderate	Moderate	High	Very high	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	7	High
Aug	7	High
Sep	5	High
Oct	3	Moderate
Nov	2	Low
Dec	1	Low

Location & terrain

Where is Superior?

Superior sits at 46.7°N, 92.1°W, 643 ft above sea level, in United States. The nearest listed city is Duluth, 4.3 mi away.

Topography around Superior

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

Within 2 miles, the terrain around Superior has only modest variations in elevation — a maximum elevation change of 118 ft around an average of 630 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 912 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,322 ft.

The land around Superior is covered by artificial surfaces (33%), water (22%) and trees (21%) within 2 miles, trees (53%) and water (28%) within 10 miles, and trees (77%) within 50 miles.

2 miles

118 ft

artificial surfaces 33%

10 miles

912 ft

trees 53%

50 miles

1,322 ft

trees 77%

treesgrasslandcroplandartificial surfacesbare terrainwater

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

April weather nearby: Duluth 4.3 mi · Hibbing 63 mi · Forest Lake 108 mi · Ham Lake 116 mi · Andover 117 mi · Lino Lakes 117 mi · Ramsey 120 mi · Stillwater 120 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 Superior (46.7208°, -92.1041°, elevation 643 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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	37	26
2	37	27
3	37	27
4	38	27
5	38	27
6	38	28
7	38	28
8	39	28
9	39	29
10	39	29
11	40	29
12	40	29
13	40	30
14	41	30
15	41	30
16	41	31
17	42	31
18	42	31
19	42	32
20	43	32
21	43	33
22	44	33
23	44	33
24	44	34
25	45	34
26	45	34
27	45	35
28	46	35
29	46	35
30	46	36

	Clearer (%)	Cloudier (%)
1	38	62
2	38	62
3	38	62
4	37	63
5	36	64
6	36	64
7	36	64
8	36	64
9	36	64
10	36	64
11	37	63
12	37	63
13	39	61
14	39	61
15	39	61
16	40	60
17	40	60
18	40	60
19	40	60
20	41	59
21	42	58
22	42	58
23	41	59
24	42	58
25	42	58
26	42	58
27	42	58
28	42	58
29	42	58
30	41	59

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

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

	Avg high (°F)	Avg low (°F)
1	37	26
2	37	27
3	37	27
4	38	27
5	38	27
6	38	28
7	38	28
8	39	28
9	39	29
10	39	29
11	40	29
12	40	29
13	40	30
14	41	30
15	41	30
16	41	31
17	42	31
18	42	31
19	42	32
20	43	32
21	43	33
22	44	33
23	44	33
24	44	34
25	45	34
26	45	34
27	45	35
28	46	35
29	46	35
30	46	36

	Clearer (%)	Cloudier (%)
1	38	62
2	38	62
3	38	62
4	37	63
5	36	64
6	36	64
7	36	64
8	36	64
9	36	64
10	36	64
11	37	63
12	37	63
13	39	61
14	39	61
15	39	61
16	40	60
17	40	60
18	40	60
19	40	60
20	41	59
21	42	58
22	42	58
23	41	59
24	42	58
25	42	58
26	42	58
27	42	58
28	42	58
29	42	58
30	41	59

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

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

	Avg high (°F)	Avg low (°F)
1	37	26
2	37	27
3	37	27
4	38	27
5	38	27
6	38	28
7	38	28
8	39	28
9	39	29
10	39	29
11	40	29
12	40	29
13	40	30
14	41	30
15	41	30
16	41	31
17	42	31
18	42	31
19	42	32
20	43	32
21	43	33
22	44	33
23	44	33
24	44	34
25	45	34
26	45	34
27	45	35
28	46	35
29	46	35
30	46	36

	Clearer (%)	Cloudier (%)
1	38	62
2	38	62
3	38	62
4	37	63
5	36	64
6	36	64
7	36	64
8	36	64
9	36	64
10	36	64
11	37	63
12	37	63
13	39	61
14	39	61
15	39	61
16	40	60
17	40	60
18	40	60
19	40	60
20	41	59
21	42	58
22	42	58
23	41	59
24	42	58
25	42	58
26	42	58
27	42	58
28	42	58
29	42	58
30	41	59

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

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