Romeoville weather in February: Romeoville, Illinois: normal highs, lows, rain and records for February
Romeoville in February has a normal high of 36°F and a normal low of 20°F, a daily mean of 28°F, rising from 32°F on the 1st to 42°F by the 29th. Measurable precipitation falls on 10 days in a normal February, 1.98 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 2°C and low of −7°C, 50 mm of precipitation and 22 cm of snow in February.
- NOAA stationRomeoville Weather Office
- Station IDUSC00117457
- Location41.60°N 88.08°W
- Elevation660 ft (201 m)
- From the center2 miles
- Population41,177
- Jan 32° 16°
- Feb 36° 20°
- Mar 49° 30°
- Apr 61° 40°
- May 72° 50°
- Jun 82° 60°
- Jul 85° 65°
- Aug 83° 63°
- Sep 76° 55°
- Oct 64° 44°
- Nov 49° 32°
- Dec 37° 22°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Romeoville in February?
The normal high is 36°F and the normal low 20°F, for a daily mean of 28.0°F. February is 4.1°F warmer than January and 11.1°F cooler than March. February is the 11th warmest month of the year in Romeoville and the 12th wettest. Across the month the normal high rises 10°F, from 32°F on February 1 to 42°F on February 29. From one year to the next February's mean temperature typically moves about 5.8°F either way (NOAA's standard deviation), so roughly two Februarys in three average between 22°F and 34°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 35%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| February 1 | 32°F | 16°F | 34% | 17% |
| February 8 | 34°F | 18°F | 33% | 16% |
| February 15 | 36°F | 20°F | 33% | 16% |
| February 22 | 39°F | 22°F | 34% | 16% |
| February 28 | 41°F | 24°F | 35% | 17% |
Every day of February: normal high, low and chance of precipitation (warmest afternoon February 29, coldest night February 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| February 1 | 32°F | 16°F | 34% | 17% | 10 h |
| February 2 | 33°F | 16°F | 33% | 17% | 10 h |
| February 3 | 33°F | 17°F | 33% | 16% | 10 h 10 min |
| February 4 | 33°F | 17°F | 33% | 16% | 10 h 10 min |
| February 5 | 33°F | 17°F | 33% | 16% | 10 h 10 min |
| February 6 | 33°F | 17°F | 33% | 16% | 10 h 10 min |
| February 7 | 34°F | 17°F | 33% | 16% | 10 h 10 min |
| February 8 | 34°F | 18°F | 33% | 16% | 10 h 20 min |
| February 9 | 34°F | 18°F | 33% | 16% | 10 h 20 min |
| February 10 | 35°F | 18°F | 33% | 16% | 10 h 20 min |
| February 11 | 35°F | 18°F | 33% | 16% | 10 h 20 min |
| February 12 | 35°F | 19°F | 33% | 16% | 10 h 30 min |
| February 13 | 36°F | 19°F | 33% | 16% | 10 h 30 min |
| February 14 | 36°F | 19°F | 33% | 16% | 10 h 30 min |
| February 15 | 36°F | 20°F | 33% | 16% | 10 h 40 min |
| February 16 | 37°F | 20°F | 33% | 16% | 10 h 40 min |
| February 17 | 37°F | 20°F | 33% | 16% | 10 h 40 min |
| February 18 | 37°F | 21°F | 34% | 16% | 10 h 40 min |
| February 19 | 38°F | 21°F | 34% | 16% | 10 h 50 min |
| February 20 | 38°F | 21°F | 34% | 16% | 10 h 50 min |
| February 21 | 38°F | 22°F | 34% | 16% | 10 h 50 min |
| February 22 | 39°F | 22°F | 34% | 16% | 10 h 50 min |
| February 23 | 39°F | 22°F | 34% | 16% | 11 h |
| February 24 | 40°F | 23°F | 34% | 16% | 11 h |
| February 25 | 40°F | 23°F | 34% | 16% | 11 h |
| February 26 | 41°F | 24°F | 34% | 17% | 11 h |
| February 27 | 41°F | 24°F | 35% | 17% | 11 h 10 min |
| February 28 | 41°F | 24°F | 35% | 17% | 11 h 10 min |
| February 29 | 42°F | 24°F | 35% | 17% | 11 h 10 min |
- Normal high
- 36°FFebruary average
- Normal low
- 20°FFebruary average
- Precipitation
- 1.98 inmonth total
- Days with precipitation
- 100.01 inch or more
- Snowfall
- 8.7 inmonth total
- Nights at 32°F or colder
- 25
- Daylight
- 10 h to 11 h 10 minFebruary 1 to February 28
- Sunshine
- 65%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00117457; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Romeoville in February?
On a given February day the chance of 0.01 inch or more is 34% on average, highest around February 29 (35%). In all, 1.98 in falls on 10 days of a normal February.
In a normal February in Romeoville, 25 nights fall to freezing, 11 days stay below freezing all day and snowfall averages 8.7 inches.
Snow falls on 6 days in a normal February, and an inch or more covers the ground on 11 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00117457.
What are the records for February in Romeoville?
The warmest February temperature on this station's record (since 1992) is 73°F, on February 25, 2000; the coldest is −19°F, on February 3, 1996. The wettest February brought 6.00 in (1997); the snowiest, 22.3 inches (2008).
The February mean against the 1991-2020 normal of 28.0°F: 2021 18.5°F (−9.5), 2022 26.1°F (−1.9), 2023 32.5°F (+4.5), 2024 38.4°F (+10.4), 2025 26.6°F (−1.4), 2026 31.8°F (+3.8). 3 of 6 ran warmer than normal.
| February | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 18.5°F | −9.5°F | 1.15 in |
| 2022 | 26.1°F | −1.9°F | 3.49 in |
| 2023 | 32.5°F | +4.5°F | 4.18 in |
| 2024 | 38.4°F | +10.4°F | 0.42 in |
| 2025 | 26.6°F | −1.4°F | 0.30 in |
| 2026 | 31.8°F | +3.8°F | 0.11 in |
Source: records: ACIS, station USC00117457; recent months: ACIS, station USC00117457. Records and recent months use complete months only.
How does February in Romeoville compare across Illinois?
Across the 144 places PlainClimate covers in Illinois, February normal highs run from 31°F in Galena to 50°F in Anna; Romeoville's is 36°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.