Belleville weather in April: Belleville, Illinois: normal highs, lows, rain and records for April
Belleville in April has a normal high of 71°F and a normal low of 46°F, a daily mean of 58°F, rising from 66°F on the 1st to 75°F by the 30th. Measurable precipitation falls on 10 days in a normal April, 4.90 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 21°C and low of 8°C, 124 mm of precipitation in April.
- NOAA stationBelleville Siu Research
- Station IDUSW00013802
- Location38.52°N 89.85°W
- Elevation450 ft (137 m)
- From the center8 miles
- Population40,560
- Jan 43° 24°
- Feb 49° 28°
- Mar 59° 36°
- Apr 71° 46°
- May 79° 56°
- Jun 87° 65°
- Jul 90° 68°
- Aug 89° 65°
- Sep 83° 57°
- Oct 73° 47°
- Nov 58° 37°
- Dec 46° 28°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Belleville in April?
The normal high is 71°F and the normal low 46°F, for a daily mean of 58.3°F. April is 10.5°F warmer than March and 9.4°F cooler than May. April is the 7th warmest month of the year in Belleville and the 2nd wettest. Across the month the normal high rises 9°F, from 66°F on April 1 to 75°F on April 30. From one year to the next April's mean temperature typically moves about 3.2°F either way (NOAA's standard deviation), so roughly two Aprils in three average between 55°F and 62°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 38%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| April 1 | 66°F | 41°F | 33% | 23% |
| April 8 | 68°F | 43°F | 34% | 24% |
| April 15 | 71°F | 46°F | 35% | 26% |
| April 22 | 73°F | 48°F | 36% | 27% |
| April 30 | 75°F | 51°F | 38% | 28% |
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 | 66°F | 41°F | 33% | 23% | 12 h 40 min |
| April 2 | 66°F | 41°F | 33% | 24% | 12 h 40 min |
| April 3 | 67°F | 42°F | 33% | 24% | 12 h 40 min |
| April 4 | 67°F | 42°F | 33% | 24% | 12 h 40 min |
| April 5 | 67°F | 42°F | 33% | 24% | 12 h 50 min |
| April 6 | 68°F | 43°F | 33% | 24% | 12 h 50 min |
| April 7 | 68°F | 43°F | 34% | 24% | 12 h 50 min |
| April 8 | 68°F | 43°F | 34% | 24% | 12 h 50 min |
| April 9 | 69°F | 44°F | 34% | 25% | 13 h |
| April 10 | 69°F | 44°F | 34% | 25% | 13 h |
| April 11 | 69°F | 44°F | 34% | 25% | 13 h |
| April 12 | 70°F | 45°F | 34% | 25% | 13 h |
| April 13 | 70°F | 45°F | 35% | 25% | 13 h 10 min |
| April 14 | 70°F | 45°F | 35% | 26% | 13 h 10 min |
| April 15 | 71°F | 46°F | 35% | 26% | 13 h 10 min |
| April 16 | 71°F | 46°F | 35% | 26% | 13 h 10 min |
| April 17 | 71°F | 47°F | 35% | 26% | 13 h 10 min |
| April 18 | 72°F | 47°F | 36% | 26% | 13 h 20 min |
| April 19 | 72°F | 47°F | 36% | 27% | 13 h 20 min |
| April 20 | 72°F | 48°F | 36% | 27% | 13 h 20 min |
| April 21 | 72°F | 48°F | 36% | 27% | 13 h 20 min |
| April 22 | 73°F | 48°F | 36% | 27% | 13 h 30 min |
| April 23 | 73°F | 49°F | 37% | 27% | 13 h 30 min |
| April 24 | 73°F | 49°F | 37% | 28% | 13 h 30 min |
| April 25 | 74°F | 49°F | 37% | 28% | 13 h 30 min |
| April 26 | 74°F | 50°F | 37% | 28% | 13 h 40 min |
| April 27 | 74°F | 50°F | 37% | 28% | 13 h 40 min |
| April 28 | 74°F | 50°F | 38% | 28% | 13 h 40 min |
| April 29 | 75°F | 51°F | 38% | 28% | 13 h 40 min |
| April 30 | 75°F | 51°F | 38% | 28% | 13 h 40 min |
- Normal high
- 71°FApril average
- Normal low
- 46°FApril average
- Precipitation
- 4.90 inmonth total
- Days with precipitation
- 100.01 inch or more
- Nights at 32°F or colder
- 3
- Daylight
- 12 h 40 min to 13 h 40 minApril 1 to April 30
- Days at 70°F or more
- 17
- Days at 80°F or more
- 5
- Sunshine
- 73%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00013802; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Belleville in April?
On a given April day the chance of 0.01 inch or more is 35% on average, highest around April 30 (38%). In all, 4.90 in falls on 10 days of a normal April, 1 of them with an inch or more.
In a normal April in Belleville, 3 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013802.
How humid and windy is Belleville in April?
At 3 p.m. the normal temperature is 69°F with 51% relative humidity and a dew point of 50°F; at 6 a.m. it is 53°F with 86% humidity. The wind averages 7.7 mph, most often from the south-southwest in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 53°F | 49°F | 86% | 5.5 mph | 47% |
| 9 a.m. | 62°F | 51°F | 67% | 9.4 mph | 46% |
| noon | 67°F | 50°F | 55% | 10.3 mph | 34% |
| 3 p.m. | 69°F | 50°F | 51% | 11.0 mph | 40% |
| 6 p.m. | 66°F | 50°F | 57% | 8.7 mph | 44% |
| 9 p.m. | 59°F | 51°F | 74% | 6.0 mph | 51% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00013802. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for April in Belleville?
The warmest April temperature on this station's record (since 1948) is 91°F, on April 15, 2006; the coldest is 18°F, on April 8, 2007. The wettest April brought 11.46 in (1994); the snowiest, 13.1 inches (1971).
The April mean against the 1991-2020 normal of 58.3°F: 2021 54.7°F (−3.6), 2023 55.8°F (−2.5), 2024 58.4°F (+0.1), 2025 59.5°F (+1.3), 2026 64.5°F (+6.2). 3 of 5 ran warmer than normal.
| April | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 54.7°F | −3.6°F | 3.03 in |
| 2023 | 55.8°F | −2.5°F | 2.30 in |
| 2024 | 58.4°F | +0.1°F | – |
| 2025 | 59.5°F | +1.3°F | – |
| 2026 | 64.5°F | +6.2°F | – |
Source: records: ACIS, station USW00013802; recent months: ACIS, station USW00013802. Records and recent months use complete months only.
How does April in Belleville compare across Illinois?
Across the 144 places PlainClimate covers in Illinois, April normal highs run from 55°F in Waukegan to 71°F in Anna; Belleville's is 71°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.