Benton, IL Climate: Temperature by Month
Temperature and precipitation from NOAA NCEI 1991–2020 normals →, plus PlainClimate's derived comfort score
30-year climate normals (1991-2020) from Benton's primary NOAA station, BENTON 2 N.
The climate verdict for Benton
Benton, Illinois has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 56°F. July is the warmest month at 78°F and January the coldest at 33°F.
- 56°F
- yearly average temperature, NOAA normal
- 207 days
- frost-free growing season
Benton: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00110608 · Benton, IL 56°F mean
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-UNK · SWING-WIDE · COMF-UNK · LOAD-HEAT · STN-1 · BOOK-PART
- TEMP-MILD 56°F
- RANK-UPPER #4,460
- PHOTO-FINISH ≈ Goodwell
- PRCP-UNK Rain n/a
- SWING-WIDE 46°F
- COMF-UNK Comfort n/a
- LOAD-HEAT 4,550 HDD
- STN-1 USC00110608
- BOOK-PART 4/6 fields
Nearest mean-temperature peer: Goodwell, OK (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every IL station list.
- Benton (this station) 56°F
- Cold Eldorado Springs, MO 56°F
- Hot Springfield Wbo, MO 56°F
- Near Goodwell, OK 56°F
- Near Lockwood, MO 56°F
Climate Living Index · Benton
Benton: 71/100 · grade B
Benton publishes 3 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 3 missing weights rescale to 100.
PlainClimate-derived for Benton, not an official NOAA rating. Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 91 calendar days | 79/100 · B |
| Frost-free season | 207 days/year | 69/100 · C |
| Annual temperature balance | 56.3°F · 11.2° from 67.5°F | 64/100 · C |
Benton · 2026-08-04 · NOAA NCEI Climate Normals · method .
National standing · heating-led station
Where Benton sits across the climate record
Available NOAA 1991–2020 fields for Benton are ranked only against stations that publish the same field, missing metrics stay blank rather than estimated.
- Annual temperature
- 65th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Seasonal temperature swing
- 61st percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 41°F (5°C) | 25°F (-4°C) | 33°F (0°C) | N/A | 24.4 | 0.0 |
| February | 44°F (7°C) | 28°F (-2°C) | 36°F (2°C) | N/A | 19.0 | 0.0 |
| March | 55°F (13°C) | 37°F (3°C) | 46°F (8°C) | N/A | 12.0 | 0.0 |
| April | 67°F (19°C) | 46°F (8°C) | 57°F (14°C) | N/A | 2.4 | 0.0 |
| May | 76°F (25°C) | 56°F (13°C) | 66°F (19°C) | N/A | 0.0 | 0.7 |
| June | 85°F (29°C) | 64°F (18°C) | 75°F (24°C) | N/A | 0.0 | 7.9 |
| July | 88°F (31°C) | 68°F (20°C) | 78°F (26°C) | N/A | 0.0 | 15.0 |
| August | 87°F (31°C) | 66°F (19°C) | 77°F (25°C) | N/A | 0.0 | 14.9 |
| September | 81°F (27°C) | 58°F (14°C) | 69°F (21°C) | N/A | 0.0 | 4.4 |
| October | 68°F (20°C) | 47°F (8°C) | 58°F (14°C) | N/A | 2.3 | 0.1 |
| November | 55°F (13°C) | 37°F (3°C) | 46°F (8°C) | N/A | 10.8 | 0.0 |
| December | 44°F (7°C) | 28°F (-2°C) | 36°F (2°C) | N/A | 21.7 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 88°F around July 13, short of 90°F on every date, while 91 dates carry a normal low at or below freezing, the coldest 24°F near January 18.
The freezing stretch
The normal low stays at or below 32°F into February 28, then returns to freezing around November 30, covering 91 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
The widest day
September 20 carries the biggest normal gap between afternoon and dawn, 23°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Benton.
Where Benton Stands Nationally
Days and nights track unusually close together; the widest normal swing, about 23°F, is narrower than most stations record.
Benton earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall
Frost Dates & Growing Season
First Fall Freeze
October 28
50% probability date
Last Spring Freeze
April 4
50% probability date
Growing Season
207 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,550
Higher = more heating needed
Cooling Degree Days
1,401
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside IL closest to Benton on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (56°F here).
- Billings, MO 56°F · 0.0°F off
- Charlottesville, VA 56°F · 0.0°F off
- Dennard, AR 56°F · 0.0°F off
- English, IN 56°F · 0.0°F off
Data-derived climate profile
How Benton's climate pattern fits together
heating led · mid swing
Benton's energy balance leans toward cold weather: 4,550 annual heating degree days against 1,401 for cooling. Its 45.5°F seasonal range still makes the monthly rows more useful than the annual average alone.
Benton's frost-free season lasts about 207 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
July and January mark the typical warm and cold ends of the calendar in Benton's middle-range seasonal profile. The measured spread is 45.5°F. The annual average is 56°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
A moisture-range label is withheld because Benton's annual precipitation total is unavailable. Monthly source values remain visible where NOAA provides them, and no annual amount is reconstructed from incomplete data.
These labels group NOAA 1991-2020 normals from Benton's primary station, so the winter figures are a thirty-year average and not a floor: a single hard season can run well below them. Treat each band as a descriptive range for Benton, not an official NOAA class or a year-ahead forecast.
Questions about Benton's climate
How many days above 90°F does Benton get? ▼
How much energy does heating and cooling require in Benton? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Benton's primary station: BENTON 2 N (USC00110608). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as an incorporated place (GEOID 1705300). Match rule for Benton: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Benton comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.