Chillicothe, MO Climate: Temperature & Rain by Month
Average temperature and precipitation from NOAA NCEI 1991–2020 normals →, with a derived climate comfort score
30-year climate normals (1991-2020) from Chillicothe's primary NOAA station, CHILLICOTHE 22 ENE - 2 stations mapped to the area.
The climate verdict for Chillicothe
Chillicothe, Missouri has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 53°F. Its climate comfort score of 68/100 (good) lands mid-pack nationally, exceeding 56% of station-mapped location scores.
- 53°F
- annual average temperature (NOAA normal)
- 68/100
- comfort score, above 56% of station-mapped location scores
- 40.1"
- annual precipitation
- 188 days
- growing season, frost-free days
Chillicothe: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00013301 · Chillicothe, MO 53°F mean · 40.1" precip
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-MID · SWING-WIDE · COMF-MID · LOAD-HEAT · STN-MULTI · BOOK-FULL
- TEMP-COOL 53°F
- RANK-MID #3,499
- PHOTO-FINISH ≈ Steffenville
- PRCP-MID 40.1"
- SWING-WIDE 49°F
- COMF-MID 68/100
- LOAD-HEAT 5,562 HDD
- STN-MULTI USW00013301
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Steffenville, MO (+ 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 MO station list.
- Chillicothe (this station) 53°F
- Hot Shelbina, MO 53°F
- Near Steffenville, MO 53°F
- Cold Eads, CO 52°F
- Near Findlay, OH 52°F
Climate Living Index · Chillicothe
Chillicothe: 62/100 · grade C
Chillicothe publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Chillicothe, not an official NOAA rating. Rankings still use Comfort Score 68/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 40.1 in · 5.1 from 35 in | 82/100 · B |
| Normal heat + freeze calendar | 121 calendar days | 64/100 · C |
| Frost-free season | 188 days/year | 56/100 · C |
| Annual temperature balance | 52.5°F · 15.0° from 67.5°F | 51/100 · D |
Chillicothe · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Chillicothe is a continental Köppen climate: Dfa
Coldest-month mean 26.4°F and warmest-month mean 75.4°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
- 75.4°F
- Coldest month
- 26.4°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 Chillicothe sits across the climate record
Three NOAA fields for Chillicothe's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 51st percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- 58th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Wider than 78%
- Warmest-to-coldest month gap for Chillicothe is large versus 6,861 complete station-years.
How Chillicothe compares across U.S. station-mapped locations
Chillicothe's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
68 Top 44% score exceeds 56% 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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 35°F (2°C) | 18°F (-8°C) | 26°F (-3°C) | 1.4" | N/A | 27.6 | 0.0 |
| February | 40°F (5°C) | 22°F (-6°C) | 31°F (0°C) | 1.6" | N/A | 24.4 | 0.0 |
| March | 53°F (12°C) | 32°F (0°C) | 43°F (6°C) | 2.8" | N/A | 14.2 | 0.0 |
| April | 64°F (18°C) | 42°F (6°C) | 53°F (12°C) | 3.6" | N/A | 5.2 | 0.0 |
| May | 73°F (23°C) | 53°F (11°C) | 63°F (17°C) | 5.2" | N/A | 0.1 | 0.5 |
| June | 82°F (28°C) | 62°F (17°C) | 72°F (22°C) | 5.1" | N/A | 0.0 | 4.1 |
| July | 85°F (30°C) | 66°F (19°C) | 75°F (24°C) | 5.0" | N/A | 0.0 | 8.7 |
| August | 84°F (29°C) | 64°F (18°C) | 74°F (23°C) | 4.1" | N/A | 0.0 | 6.5 |
| September | 77°F (25°C) | 55°F (13°C) | 66°F (19°C) | 4.2" | N/A | 0.0 | 2.4 |
| October | 65°F (18°C) | 44°F (6°C) | 54°F (12°C) | 3.1" | N/A | 3.9 | 0.2 |
| November | 51°F (11°C) | 32°F (0°C) | 42°F (5°C) | 2.4" | N/A | 15.2 | 0.0 |
| December | 39°F (4°C) | 23°F (-5°C) | 31°F (-1°C) | 1.6" | N/A | 25.7 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 86°F around July 23, short of 90°F on every date, while 121 dates carry a normal low at or below freezing, the coldest 17°F near January 16.
The freezing stretch
The normal low stays at or below 32°F into March 15, then returns to freezing around November 16, covering 121 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 25, when 39% of years recorded at least a hundredth of an inch. The driest is July 16 at 25%. Summed across the calendar, that is about 111 wet dates a year.
The widest day
September 26 carries the biggest normal gap between afternoon and dawn, 22°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Chillicothe.
Where Chillicothe Stands Nationally
Days and nights track unusually close together; the widest normal swing, about 22°F, is narrower than most stations record.
Chillicothe 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 and snowfall
7.9 days with precipitation
8.8 days with precipitation
10.3 days with precipitation
11.7 days with precipitation
11.4 days with precipitation
10.5 days with precipitation
7.4 days with precipitation
9.8 days with precipitation
8.1 days with precipitation
8.9 days with precipitation
7.5 days with precipitation
8.5 days with precipitation
Chillicothe runs a summer-peaked wet season
35% of Chillicothe's yearly precipitation falls in June, July and August alone, against the 25% an evenly spread year would give those three months. The wettest month is May at 5.2", on a wide 49°F gap between its warmest and coldest month. Warm-season convection and, across the Southwest, the North American monsoon produce this shape: rain arrives in short heavy bursts during the hottest part of the year rather than as long cool-season soaking.
- Wettest three months: May, June, July, taking 38% of the annual total between them.
- Driest month: January at 1.4".
- Winter share: 12% falls in December, January and February.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A summer-peaked label means the June-August share reaches 35%; it describes timing across an average year, not any single season, and says nothing about how heavy an individual storm can be.
When it rains in Chillicothe, it arrives in quantity
40.1" of precipitation falls across only about 111 wet days here, averaging 0.36 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 111 a year, 30% of all days
- Average depth per wet day
- 0.36 inches
- Most wet days
- April, about 12
- Fewest wet days
- July, about 7
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.
Frost Dates & Growing Season
First Fall Freeze
October 20
50% probability date
Last Spring Freeze
April 15
50% probability date
Growing Season
188 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,562
Higher = more heating needed
Cooling Degree Days
1,053
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside MO closest to Chillicothe 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 (53°F here).
- Cheraw, CO 53°F · 0.0°F off
- Cloverdale, OR 53°F · 0.0°F off
- Cougar, WA 53°F · 0.0°F off
- Geneva, NE 53°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (40.1" here), excluding temperature-peer places.
- Attica, IN 40.1" · 0.0" off
- Kent, WA 40.1" · 0.0" off
- Rensselaer, IN 40.1" · 0.0" off
- Bentley, IL 40.1" · 0.0" off
Data-derived climate profile
How Chillicothe's climate pattern fits together
heating led · moderate · mid swing
Chillicothe's energy balance leans toward cold weather: 5,562 annual heating degree days against 1,053 for cooling. Its 49.0°F seasonal range still makes the monthly rows more useful than the annual average alone.
Chillicothe's frost-free season lasts about 188 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 Chillicothe's middle-range seasonal profile. The measured spread is 49.0°F. The annual average is 53°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Chillicothe's 40.1 inches of annual precipitation falls in PlainClimate's middle band, so “wet” or “dry” is not the leading description. Snowfall is not added to the interpretation because its annual value is missing. Temperature balance and the calendar distribution carry more information than the annual moisture label alone.
These labels group NOAA 1991-2020 normals from Chillicothe'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 Chillicothe, not an official NOAA class or a year-ahead forecast.
Questions about Chillicothe's climate
How much rain does Chillicothe get? ▼
How cold does Chillicothe get in winter? ▼
How much energy does heating and cooling require in Chillicothe? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Chillicothe's primary station: CHILLICOTHE 22 ENE (USW00013301). 2 NOAA stations are mapped to the Chillicothe area; the primary station's record is used for consistency. 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 2913690). Match rule for Chillicothe: 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 Chillicothe 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.