Superior weather in April: Superior, Wisconsin: normal highs, lows, rain and records for April
Superior in April has a normal high of 46°F and a normal low of 32°F, a daily mean of 39°F, rising from 41°F on the 1st to 52°F by the 30th. Measurable precipitation falls on 9 days in a normal April, 2.64 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 8°C and low of 0°C, 67 mm of precipitation and 4 cm of snow in April.
- NOAA stationSuperior
- Station IDUSC00478349
- Location46.73°N 92.07°W
- Elevation607 ft (185 m)
- Population26,620
- Jan 23° 6°
- Feb 27° 9°
- Mar 36° 21°
- Apr 46° 32°
- May 57° 41°
- Jun 67° 50°
- Jul 76° 58°
- Aug 75° 58°
- Sep 67° 50°
- Oct 53° 39°
- Nov 39° 26°
- Dec 27° 13°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Superior in April?
The normal high is 46°F and the normal low 32°F, for a daily mean of 38.9°F. April is 10.4°F warmer than March and 10.2°F cooler than May. April is the 7th warmest month of the year in Superior and the 7th wettest. Across the month the normal high rises 11°F, from 41°F on April 1 to 52°F on April 30. From one year to the next April's mean temperature typically moves about 2.8°F either way (NOAA's standard deviation), so roughly two Aprils in three average between 36°F and 42°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 34%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| April 1 | 41°F | 27°F | 26% | 16% |
| April 8 | 43°F | 29°F | 28% | 17% |
| April 15 | 46°F | 32°F | 30% | 19% |
| April 22 | 49°F | 34°F | 32% | 20% |
| April 30 | 52°F | 37°F | 34% | 22% |
Every day of April: normal high, low and chance of precipitation (warmest afternoon April 30, coldest night April 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| April 1 | 41°F | 27°F | 26% | 16% | 12 h 50 min |
| April 2 | 41°F | 27°F | 27% | 16% | 12 h 50 min |
| April 3 | 41°F | 28°F | 27% | 16% | 12 h 50 min |
| April 4 | 42°F | 28°F | 27% | 17% | 13 h |
| April 5 | 42°F | 28°F | 27% | 17% | 13 h |
| April 6 | 42°F | 29°F | 28% | 17% | 13 h |
| April 7 | 43°F | 29°F | 28% | 17% | 13 h 10 min |
| April 8 | 43°F | 29°F | 28% | 17% | 13 h 10 min |
| April 9 | 43°F | 30°F | 28% | 18% | 13 h 10 min |
| April 10 | 44°F | 30°F | 28% | 18% | 13 h 20 min |
| April 11 | 44°F | 30°F | 29% | 18% | 13 h 20 min |
| April 12 | 45°F | 31°F | 29% | 18% | 13 h 20 min |
| April 13 | 45°F | 31°F | 29% | 18% | 13 h 30 min |
| April 14 | 45°F | 31°F | 29% | 19% | 13 h 30 min |
| April 15 | 46°F | 32°F | 30% | 19% | 13 h 30 min |
| April 16 | 46°F | 32°F | 30% | 19% | 13 h 30 min |
| April 17 | 46°F | 32°F | 30% | 19% | 13 h 40 min |
| April 18 | 47°F | 33°F | 31% | 20% | 13 h 40 min |
| April 19 | 47°F | 33°F | 31% | 20% | 13 h 40 min |
| April 20 | 48°F | 33°F | 31% | 20% | 13 h 50 min |
| April 21 | 48°F | 34°F | 31% | 20% | 13 h 50 min |
| April 22 | 49°F | 34°F | 32% | 20% | 13 h 50 min |
| April 23 | 49°F | 34°F | 32% | 21% | 14 h |
| April 24 | 49°F | 35°F | 32% | 21% | 14 h |
| April 25 | 50°F | 35°F | 32% | 21% | 14 h |
| April 26 | 50°F | 35°F | 33% | 21% | 14 h 10 min |
| April 27 | 51°F | 36°F | 33% | 21% | 14 h 10 min |
| April 28 | 51°F | 36°F | 33% | 21% | 14 h 10 min |
| April 29 | 52°F | 36°F | 33% | 22% | 14 h 20 min |
| April 30 | 52°F | 37°F | 34% | 22% | 14 h 20 min |
- Normal high
- 46°FApril average
- Normal low
- 32°FApril average
- Precipitation
- 2.64 inmonth total
- Days with precipitation
- 90.01 inch or more
- Snowfall
- 1.7 inmonth total
- Nights at 32°F or colder
- 15
- Daylight
- 12 h 50 min to 14 h 20 minApril 1 to April 30
- Days at 70°F or more
- 1
- Sunshine
- 69%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00478349; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Superior in April?
On a given April day the chance of 0.01 inch or more is 30% on average, highest around April 30 (34%). In all, 2.64 in falls on 9 days of a normal April, 1 of them with an inch or more.
In a normal April in Superior, 15 nights fall to freezing, 1 days stay below freezing all day and snowfall averages 1.7 inches.
Snow falls on 2 days in a normal April, and an inch or more covers the ground on 4 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00478349.
What are the records for April in Superior?
The April mean against the 1991-2020 normal of 38.9°F: 2021 40.9°F (+2.0), 2022 34.5°F (−4.4), 2023 37.6°F (−1.3), 2024 42.4°F (+3.5), 2025 39.6°F (+0.7), 2026 38.4°F (−0.5). 3 of 6 ran warmer than normal.
| April | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 40.9°F | +2.0°F | 2.74 in |
| 2022 | 34.5°F | −4.4°F | 4.44 in |
| 2023 | 37.6°F | −1.3°F | 2.35 in |
| 2024 | 42.4°F | +3.5°F | 3.29 in |
| 2025 | 39.6°F | +0.7°F | 1.86 in |
| 2026 | 38.4°F | −0.5°F | 4.96 in |
Source: records: ACIS, station USC00478349; recent months: ACIS, station USC00478349. Records and recent months use complete months only.
How does April in Superior compare across Wisconsin?
Across the 165 places PlainClimate covers in Wisconsin, April normal highs run from 46°F in Superior to 61°F in Boscobel; Superior's is 46°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.