Chenoa, IL Climate: Temperature & Rain by Month
Explore NOAA NCEI's 1991–2020 climate normals → and a clearly labeled PlainClimate comfort calculation
30-year climate normals (1991-2020) from Chenoa's primary NOAA station, CHENOA.
The climate verdict for Chenoa
Chenoa, Illinois has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 51°F. Its climate comfort score of 64/100 (good) lands mid-pack nationally, exceeding 49% of station-mapped location scores.
- 51°F
- yearly average temperature, NOAA normal
- 64/100
- comfort score, above 49% of station-mapped location scores
- 36.3"
- annual precipitation · 20" snow
- 175 days
- growing season, frost-free days
Chenoa: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00111475 · Chenoa, IL 51°F mean · 36.3" precip
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-MID · SWING-WIDE · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 51°F
- RANK-MID #2,882
- PHOTO-FINISH ≈ Detroit City
- PRCP-MID 36.3"
- SWING-WIDE 50°F
- COMF-MID 64/100
- LOAD-HEAT 6,106 HDD
- STN-1 USC00111475
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Detroit City, MI (+ 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.
- Chenoa (this station) 51°F
- Hot Crook, CO 51°F
- Near Detroit City, MI 51°F
- Near Idalia, CO 51°F
- Near Paxton, IL 51°F
Climate Living Index · Chenoa
Chenoa: 57/100 · grade C
Chenoa publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Chenoa, not an official NOAA rating. Rankings still use Comfort Score 64/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 36.3 in · 1.3 from 35 in | 93/100 · A |
| Normal heat + freeze calendar | 135 calendar days | 56/100 · C |
| Snowfall burden | 19.9 inches/year | 49/100 · D |
| Frost-free season | 175 days/year | 46/100 · D |
| Annual temperature balance | 50.5°F · 17.0° from 67.5°F | 43/100 · D |
Chenoa · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Chenoa is a continental Köppen climate: Dfa
Coldest-month mean 23.4°F and warmest-month mean 73.4°F place this station in continental, no dry season, hot summer climates (Dfa). Class Dfa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, no dry season, hot summer.
- Köppen code
- Dfa
- Group
- Continental
- Warmest month
- 73.4°F
- Coldest month
- 23.4°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where Chenoa sits across the climate record
Three NOAA fields for Chenoa's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 42nd percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- 50th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Wider than 81%
- Warmest-to-coldest month gap for Chenoa is large versus 6,861 complete station-years.
How Chenoa compares across U.S. station-mapped locations
Chenoa's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
64 49th percentile score exceeds 49% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). This entry sits in this band.
- 70–80: 650 station-mapped locations (11%). Above this entry.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Chenoa's measured station temperature trend
MethodologyAcross 48 complete annual observations from 1952 to 2021, CHENOA warmed at a fitted rate of 0.13°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Chenoa primary station fitted change +0.13 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 32°F (0°C) | 15°F (-9°C) | 23°F (-5°C) | 2.2" | 5.3" | 28.7 | 0.0 |
| February | 37°F (3°C) | 19°F (-7°C) | 28°F (-2°C) | 1.6" | 4.8" | 25.3 | 0.0 |
| March | 49°F (10°C) | 29°F (-2°C) | 39°F (4°C) | 2.7" | 2.3" | 19.9 | 0.0 |
| April | 62°F (17°C) | 39°F (4°C) | 51°F (10°C) | 3.6" | 0.8" | 6.1 | 0.0 |
| May | 73°F (23°C) | 51°F (10°C) | 62°F (17°C) | 4.5" | 0.0" | 0.1 | 1.5 |
| June | 82°F (28°C) | 60°F (16°C) | 71°F (22°C) | 3.8" | 0.0" | 0.0 | 5.9 |
| July | 84°F (29°C) | 63°F (17°C) | 73°F (23°C) | 3.7" | 0.0" | 0.0 | 7.8 |
| August | 82°F (28°C) | 61°F (16°C) | 72°F (22°C) | 3.2" | 0.0" | 0.0 | 5.0 |
| September | 77°F (25°C) | 53°F (12°C) | 65°F (18°C) | 3.1" | 0.0" | 0.1 | 2.9 |
| October | 64°F (18°C) | 42°F (6°C) | 53°F (12°C) | 3.2" | 0.0" | 3.8 | 0.1 |
| November | 49°F (9°C) | 31°F (-1°C) | 40°F (4°C) | 2.6" | 1.3" | 16.9 | 0.0 |
| December | 37°F (3°C) | 21°F (-6°C) | 29°F (-2°C) | 2.0" | 5.4" | 25.9 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 84°F around July 6, short of 90°F on every date, while 135 dates carry a normal low at or below freezing, the coldest 14°F near January 21.
The freezing stretch
The normal low stays at or below 32°F into March 26, then returns to freezing around November 13, covering 135 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.
Where the wet dates fall
The likeliest wet date is April 30, when 37% of years recorded at least a hundredth of an inch. The driest is February 9 at 18%. Summed across the calendar, that is about 97 wet dates a year.
The widest day
September 21 carries the biggest normal gap between afternoon and dawn, 24°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Chenoa.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 5.3"
6.5 days with precipitation
Snow: 4.8"
4.8 days with precipitation
Snow: 2.3"
7.8 days with precipitation
Snow: 0.8"
10.5 days with precipitation
11.1 days with precipitation
9.1 days with precipitation
8.1 days with precipitation
7.6 days with precipitation
6.9 days with precipitation
8.9 days with precipitation
Snow: 1.3"
8.1 days with precipitation
Snow: 5.4"
6.6 days with precipitation
Chenoa spreads its precipitation across the year
Neither half of the year dominates here: June through August take 30% of the annual total and December through February 16%, with neither reaching the 35% that would mark a distinct wet season. Chenoa has no dry season to plan around, though it does carry a wide 50°F gap between its warmest and coldest month.
The gap between the wettest and driest month still matters: May averages 4.5" and February 1.6". The three wettest months together take 33% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
When it rains in Chenoa, it arrives in quantity
36.3" of precipitation falls across only about 96 wet days here, averaging 0.38 inches each. Fewer days carry more water: the year's total is delivered in comparatively heavy events rather than persistent damp.
- Days with measurable precipitation
- about 96 a year, 26% of all days
- Average depth per wet day
- 0.38 inches
- Most wet days
- May, about 11
- Fewest wet days
- February, about 5
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, and a per-day average is not a forecast of any individual storm.
Winter brings real snow to Chenoa
Chenoa averages 19.9 inches of snowfall a year, with December the snowiest month on the normals, spread across roughly 11 days that record measurable snow. That is depth accumulating on the ground, which is why it can exceed the annual precipitation figure: precipitation counts the liquid the snow melts down to, and fresh snow is mostly air.
- Annual snowfall: 19.9 inches of depth.
- Days recording measurable snow: about 11 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 5% of the year's precipitation.
NOAA 1991-2020 normals. The ten-to-one ratio is a convention, not a measurement: real ratios vary with temperature, so treat the share as an order of magnitude rather than an exact split.
Frost Dates & Growing Season
First Fall Freeze
October 15
50% probability date
Last Spring Freeze
April 23
50% probability date
Growing Season
175 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
6,106
Higher = more heating needed
Cooling Degree Days
862
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside IL closest to Chenoa 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 (51°F here).
- Columbus, NE 51°F · 0.0°F off
- Coos Bay, OR 51°F · 0.0°F off
- Crook, CO 51°F · 0.0°F off
- Dufur, OR 51°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (36.3" here), excluding temperature-peer places.
- Mason City, IA 36.3" · 0.0" off
- Medina, TX 36.3" · 0.0" off
- Montello, WI 36.3" · 0.0" off
- Waterloo, IA 36.3" · 0.0" off
Snow and freeze rhythm
When cold and snow define Chenoa
heating led · moderate · mid swing
Chenoa's energy balance leans toward cold weather: 6,106 annual heating degree days against 862 for cooling. Its 50.0°F seasonal range still makes the monthly rows more useful than the annual average alone.
Chenoa's frost-free season lasts about 175 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
-
1. Chenoa coldest normal
January
Averaging 23°F (-5°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. Chenoa typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Chenoa snow peak
December
Chenoa averages 19.9 inches of snow a year, with December the snowiest month on the normals.
Questions about Chenoa's climate
How much snow does Chenoa get? ▼
How cold does Chenoa get in winter? ▼
How much energy does heating and cooling require in Chenoa? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Chenoa's primary station: CHENOA (USC00111475). 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 1712931). Match rule for Chenoa: 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 Chenoa 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.