Rockford weather in April: Rockford, Illinois: normal highs, lows, rain and records for April
Rockford 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 65°F by the 30th. Measurable precipitation falls on 12 days in a normal April, 3.75 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 15°C and low of 4°C, 95 mm of precipitation and 2 cm of snow in April.
- NOAA stationRockford Greater Rockford Airport
- Station IDUSW00094822
- Location42.19°N 89.09°W
- Elevation730 ft (223 m)
- From the center5 miles
- Population147,486
- Jan 29° 15°
- Feb 33° 18°
- Mar 47° 28°
- Apr 60° 39°
- May 71° 50°
- Jun 81° 60°
- Jul 84° 64°
- Aug 82° 62°
- Sep 75° 54°
- Oct 62° 42°
- Nov 47° 31°
- Dec 34° 20°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Rockford in April?
The normal high is 60°F and the normal low 39°F, for a daily mean of 49.1°F. April is 11.8°F warmer than March and 11.3°F cooler than May. April is the 7th warmest month of the year in Rockford and the 5th wettest. Across the month the normal high rises 11°F, from 54°F on April 1 to 65°F on April 30. From one year to the next April's mean temperature typically moves about 3.1°F either way (NOAA's standard deviation), so roughly two Aprils in three average between 46°F and 52°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 | 36% | 20% |
| April 8 | 57°F | 36°F | 38% | 22% |
| April 15 | 60°F | 38°F | 39% | 23% |
| April 22 | 62°F | 41°F | 41% | 24% |
| April 30 | 65°F | 44°F | 42% | 25% |
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 | 36% | 20% | 12 h 40 min |
| April 2 | 54°F | 34°F | 36% | 21% | 12 h 40 min |
| April 3 | 55°F | 34°F | 37% | 21% | 12 h 50 min |
| April 4 | 55°F | 35°F | 37% | 21% | 12 h 50 min |
| April 5 | 56°F | 35°F | 37% | 21% | 12 h 50 min |
| April 6 | 56°F | 35°F | 37% | 22% | 12 h 50 min |
| April 7 | 56°F | 36°F | 37% | 22% | 13 h |
| April 8 | 57°F | 36°F | 38% | 22% | 13 h |
| April 9 | 57°F | 36°F | 38% | 22% | 13 h |
| April 10 | 58°F | 37°F | 38% | 22% | 13 h 10 min |
| April 11 | 58°F | 37°F | 38% | 23% | 13 h 10 min |
| April 12 | 58°F | 37°F | 38% | 23% | 13 h 10 min |
| April 13 | 59°F | 38°F | 39% | 23% | 13 h 10 min |
| April 14 | 59°F | 38°F | 39% | 23% | 13 h 20 min |
| April 15 | 60°F | 38°F | 39% | 23% | 13 h 20 min |
| April 16 | 60°F | 39°F | 39% | 23% | 13 h 20 min |
| April 17 | 60°F | 39°F | 40% | 24% | 13 h 20 min |
| April 18 | 61°F | 39°F | 40% | 24% | 13 h 30 min |
| April 19 | 61°F | 40°F | 40% | 24% | 13 h 30 min |
| April 20 | 62°F | 40°F | 40% | 24% | 13 h 30 min |
| April 21 | 62°F | 40°F | 41% | 24% | 13 h 40 min |
| April 22 | 62°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% | 24% | 13 h 40 min |
| April 25 | 63°F | 42°F | 41% | 24% | 13 h 50 min |
| April 26 | 64°F | 42°F | 41% | 24% | 13 h 50 min |
| April 27 | 64°F | 43°F | 42% | 24% | 13 h 50 min |
| April 28 | 65°F | 43°F | 42% | 24% | 13 h 50 min |
| April 29 | 65°F | 43°F | 42% | 24% | 14 h |
| April 30 | 65°F | 44°F | 42% | 25% | 14 h |
- Normal high
- 60°FApril average
- Normal low
- 39°FApril average
- Precipitation
- 3.75 inmonth total
- Days with precipitation
- 120.01 inch or more
- Snowfall
- 0.9 inmonth total
- Nights at 32°F or colder
- 7
- Daylight
- 12 h 40 min to 14 hApril 1 to April 30
- Days at 70°F or more
- 6
- Days at 80°F or more
- 1
- Sunshine
- 68%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00094822; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Rockford in April?
On a given April day the chance of 0.01 inch or more is 39% on average, highest around April 30 (42%). In all, 3.75 in falls on 12 days of a normal April, 1 of them with an inch or more.
In a normal April in Rockford, 7 nights fall to freezing and snowfall averages 0.9 inches.
Snow falls on 1 day in a normal April.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00094822.
How humid and windy is Rockford in April?
At 3 p.m. the normal temperature is 63°F with 45% relative humidity and a dew point of 41°F; at 6 a.m. it is 47°F with 77% humidity. The wind averages 10.2 mph, most often from the west-southwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 47°F | 40°F | 77% | 8.1 mph | 29% |
| 9 a.m. | 55°F | 41°F | 59% | 11.6 mph | 32% |
| noon | 61°F | 41°F | 48% | 12.7 mph | 20% |
| 3 p.m. | 63°F | 41°F | 45% | 13.1 mph | – |
| 6 p.m. | 60°F | 40°F | 48% | 11.2 mph | 22% |
| 9 p.m. | 53°F | 41°F | 63% | 8.8 mph | 37% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00094822. 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 Rockford?
The warmest April temperature on Rockford's official record (since 1893) is 93°F, on April 10, 1930; the coldest is 5°F, on April 7, 1982. The wettest April brought 9.92 in (1973); the snowiest, 9.0 inches (1936).
The April mean against the 1991-2020 normal of 49.1°F: 2021 52.5°F (+3.4), 2022 46.0°F (−3.1), 2023 49.2°F (+0.1), 2024 51.6°F (+2.5), 2025 49.9°F (+0.8), 2026 53.5°F (+4.4). 5 of 6 ran warmer than normal.
| April | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 52.5°F | +3.4°F | 1.66 in |
| 2022 | 46.0°F | −3.1°F | 4.48 in |
| 2023 | 49.2°F | +0.1°F | 2.68 in |
| 2024 | 51.6°F | +2.5°F | 3.89 in |
| 2025 | 49.9°F | +0.8°F | 2.16 in |
| 2026 | 53.5°F | +4.4°F | 6.46 in |
Source: records: ACIS, NWS threaded record RFDthr; recent months: ACIS, station USW00094822. Records and recent months use complete months only.
How does April in Rockford 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; Rockford's is 60°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.