Joliet weather in April: Joliet, Illinois: normal highs, lows, rain and records for April
Joliet in April has a normal high of 60°F and a normal low of 39°F, a daily mean of 49°F, rising from 54°F on the 1st to 66°F by the 30th. Measurable precipitation falls on 12 days in a normal April, 3.93 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 16°C and low of 4°C, 100 mm of precipitation and 0 cm of snow in April.
- NOAA stationJoliet Brandon Rd Dam
- Station IDUSC00114530
- Location41.50°N 88.10°W
- Elevation543 ft (166 m)
- Population151,837
- Jan 31° 17°
- Feb 35° 20°
- Mar 47° 29°
- Apr 60° 39°
- May 71° 49°
- Jun 80° 60°
- Jul 84° 64°
- Aug 82° 63°
- Sep 76° 55°
- Oct 63° 43°
- Nov 49° 32°
- Dec 36° 22°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Joliet in April?
The normal high is 60°F and the normal low 39°F, for a daily mean of 49.4°F. April is 11.3°F warmer than March and 10.8°F cooler than May. April is the 7th warmest month of the year in Joliet and the 5th wettest. Across the month the normal high rises 12°F, from 54°F on April 1 to 66°F on April 30. From one year to the next April's mean temperature typically moves about 3.3°F either way (NOAA's standard deviation), so roughly two Aprils in three average between 46°F and 53°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 42%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| April 1 | 54°F | 34°F | 37% | 20% |
| April 8 | 57°F | 36°F | 39% | 21% |
| April 15 | 60°F | 39°F | 41% | 23% |
| April 22 | 63°F | 41°F | 41% | 24% |
| April 30 | 66°F | 44°F | 42% | 26% |
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 | 54°F | 34°F | 37% | 20% | 12 h 40 min |
| April 2 | 54°F | 34°F | 37% | 20% | 12 h 40 min |
| April 3 | 55°F | 35°F | 38% | 20% | 12 h 40 min |
| April 4 | 55°F | 35°F | 38% | 21% | 12 h 50 min |
| April 5 | 56°F | 35°F | 38% | 21% | 12 h 50 min |
| April 6 | 56°F | 36°F | 38% | 21% | 12 h 50 min |
| April 7 | 57°F | 36°F | 39% | 21% | 13 h |
| April 8 | 57°F | 36°F | 39% | 21% | 13 h |
| April 9 | 57°F | 37°F | 39% | 22% | 13 h |
| April 10 | 58°F | 37°F | 39% | 22% | 13 h |
| April 11 | 58°F | 37°F | 40% | 22% | 13 h 10 min |
| April 12 | 59°F | 38°F | 40% | 22% | 13 h 10 min |
| April 13 | 59°F | 38°F | 40% | 22% | 13 h 10 min |
| April 14 | 59°F | 38°F | 40% | 23% | 13 h 10 min |
| April 15 | 60°F | 39°F | 41% | 23% | 13 h 20 min |
| April 16 | 60°F | 39°F | 41% | 23% | 13 h 20 min |
| April 17 | 61°F | 39°F | 41% | 23% | 13 h 20 min |
| April 18 | 61°F | 40°F | 41% | 24% | 13 h 30 min |
| April 19 | 61°F | 40°F | 41% | 24% | 13 h 30 min |
| April 20 | 62°F | 40°F | 41% | 24% | 13 h 30 min |
| April 21 | 62°F | 41°F | 41% | 24% | 13 h 30 min |
| April 22 | 63°F | 41°F | 41% | 24% | 13 h 40 min |
| April 23 | 63°F | 41°F | 41% | 24% | 13 h 40 min |
| April 24 | 63°F | 42°F | 41% | 25% | 13 h 40 min |
| April 25 | 64°F | 42°F | 41% | 25% | 13 h 40 min |
| April 26 | 64°F | 43°F | 42% | 25% | 13 h 50 min |
| April 27 | 64°F | 43°F | 42% | 25% | 13 h 50 min |
| April 28 | 65°F | 43°F | 42% | 25% | 13 h 50 min |
| April 29 | 65°F | 44°F | 42% | 25% | 13 h 50 min |
| April 30 | 66°F | 44°F | 42% | 26% | 14 h |
- Normal high
- 60°FApril average
- Normal low
- 39°FApril average
- Precipitation
- 3.93 inmonth total
- Days with precipitation
- 120.01 inch or more
- Snowfall
- 0.1 inmonth total
- Nights at 32°F or colder
- 6
- Daylight
- 12 h 40 min to 14 hApril 1 to April 30
- Days at 70°F or more
- 7
- Days at 80°F or more
- 1
- Sunshine
- 70%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00114530; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Joliet in April?
On a given April day the chance of 0.01 inch or more is 40% on average, highest around April 28 (42%). In all, 3.93 in falls on 12 days of a normal April, 1 of them with an inch or more.
In a normal April in Joliet, 6 nights fall to freezing and snowfall averages 0.1 inches.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00114530.
What are the records for April in Joliet?
The warmest April temperature on this station's record (since 1975) is 92°F, on April 26, 1986; the coldest is 11°F, on April 7, 1982. The wettest April brought 9.26 in (1947); the snowiest, 2.0 inches (1951).
The April mean against the 1991-2020 normal of 49.4°F: 2022 45.3°F (−4.1), 2023 49.8°F (+0.4), 2024 50.9°F (+1.5), 2025 50.0°F (+0.6), 2026 54.6°F (+5.2). 4 of 5 ran warmer than normal.
| April | Mean | Against normal | Precip. |
|---|---|---|---|
| 2022 | 45.3°F | −4.1°F | 2.28 in |
| 2023 | 49.8°F | +0.4°F | 2.85 in |
| 2024 | 50.9°F | +1.5°F | 4.64 in |
| 2025 | 50.0°F | +0.6°F | 2.69 in |
| 2026 | 54.6°F | +5.2°F | 5.86 in |
Source: records: ACIS, station USC00114530; recent months: ACIS, station USC00114530. Records and recent months use complete months only.
How does April in Joliet 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; Joliet's is 60°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.