Climate averages 1991–2020
Arlington Heights weather
in April.
A cool, wet month: the 7th warmest and one of the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cool month in Arlington Heights: daytime highs average 13.0°C and nights cool to about 4.0°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 110 mm of rain on roughly 12 days, which makes April a wet month (one of the wettest months of the year). Daylight, from sunrise to sunset, lasts about 13 h 20 min on an average April day.
The nearest other city in this atlas is Schaumburg (10 km away). In April its highs average 14.0°C, 1.1°C warmer than Arlington Heights, with 110 mm of rain.
Among the 498 cities listed in the United States, Arlington Heights ranks joint 453rd of 498 for the warmest April highs and joint 409th of 498 for the driest April (rainfall, lowest first). The mean April high of those 498 cities is 19.4°C; Arlington Heights is 6.4°C cooler than that mean.
From April to May, average highs rise by 6.3°C to 19.2°C, and monthly rainfall stays at 110 mm.
The annual picture
April in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Arlington Heights climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -1.1°C-8.3°C | -8.3°C | 53 | 8.1 | 9.59 h |
| February | 0.9°C-7.1°C | -7.1°C | 49 | 7.0 | 10.511 h |
| March | 6.6°C-1.8°C | -1.8°C | 64 | 9.7 | 11.912 h |
| April, selected | 13.0°C4.0°C | 4.0°C | 110 | 12.3 | 13.313 h |
| May | 19.2°C10.4°C | 10.4°C | 110 | 12.5 | 14.515 h |
| June | 24.9°C16.6°C | 16.6°C | 99 | 12.0 | 15.215 h |
| July | 27.4°C19.5°C | 19.5°C | 90 | 11.3 | 14.915 h |
| August | 26.4°C19.0°C | 19.0°C | 93 | 10.5 | 13.914 h |
| September | 22.7°C15.1°C | 15.1°C | 75 | 8.5 | 12.513 h |
| October | 15.8°C8.6°C | 8.6°C | 79 | 9.1 | 11.111 h |
| November | 8.1°C1.7°C | 1.7°C | 61 | 8.1 | 9.910 h |
| December | 1.8°C-4.4°C | -4.4°C | 54 | 8.2 | 9.29 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
April in nearby cities
- Schaumburg in AprilUnited States · 10 kmHigh 14.0°C · Low 3.8°C · 110 mm rain
- Evanston in AprilUnited States · 25 kmHigh 10.9°C · Low 4.4°C · 108 mm rain
- Elgin in AprilUnited States · 25 kmHigh 14.4°C · Low 4.2°C · 114 mm rain
- Waukegan in AprilUnited States · 33 kmHigh 7.9°C · Low 3.6°C · 121 mm rain
- Cicero in AprilUnited States · 33 kmHigh 13.7°C · Low 4.4°C · 114 mm rain
- Naperville in AprilUnited States · 36 kmHigh 14.4°C · Low 4.2°C · 113 mm rain
- Chicago in AprilUnited States · 38 kmHigh 12.3°C · Low 4.4°C · 114 mm rain
- Bolingbrook in AprilUnited States · 44 kmHigh 14.6°C · Low 4.3°C · 112 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Arlington Heights) is explained once on the Arlington Heights year overview and on the Sources, method and limits page.
Schaumburg lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.