Cosby, MO Climate: Temperature & Rain by Month
Pulled from NOAA NCEI 1991–2020 normals →: climate measurements used in PlainClimate's documented score
30-year climate normals (1991-2020) from Cosby's primary NOAA station, COSBY 2W.
The climate verdict for Cosby
Cosby, Missouri has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 52°F. Its climate comfort score of 68/100 (good) lands mid-pack nationally, exceeding 56% of station-mapped location scores.
- 52°F
- yearly average temperature, NOAA normal
- 68/100
- comfort score, above 56% of station-mapped location scores
- 37.1"
- yearly precipitation total
- 185 days
- frost-free days per growing season
Cosby: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00231924 · Cosby, MO 52°F mean · 37.1" precip
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-MID · SWING-WIDE · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 52°F
- RANK-MID #3,499
- PHOTO-FINISH ≈ Rantoul
- PRCP-MID 37.1"
- SWING-WIDE 51°F
- COMF-MID 68/100
- LOAD-HEAT 5,718 HDD
- STN-1 USC00231924
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Rantoul, IL ( -0.1 °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.
- Hot Havana, IL 53°F
- Near Huntington, OR 53°F
- Cosby (this station) 52°F
- Cold Rantoul, IL 52°F
- Near Benkelman, NE 52°F
Climate Living Index · Cosby
Cosby: 62/100 · grade C
Cosby publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Cosby, not an official NOAA rating. Rankings still use Comfort Score 68/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 37.1 in · 2.1 from 35 in | 91/100 · A |
| Normal heat + freeze calendar | 131 calendar days | 58/100 · C |
| Frost-free season | 185 days/year | 54/100 · D |
| Annual temperature balance | 52.4°F · 15.1° from 67.5°F | 51/100 · D |
Cosby · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Cosby is a continental Köppen climate: Dfa
Coldest-month mean 25.6°F and warmest-month mean 77.0°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
- 77.0°F
- Coldest month
- 25.6°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 Cosby sits across the climate record
Three NOAA fields for Cosby'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
- 52nd percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Wider than 84%
- Warmest-to-coldest month gap for Cosby is large versus 6,861 complete station-years.
How Cosby compares across U.S. station-mapped locations
Cosby'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 | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 35°F (2°C) | 16°F (-9°C) | 26°F (-4°C) | 0.9" | 29.5 | 0.0 |
| February | 40°F (5°C) | 19°F (-7°C) | 30°F (-1°C) | 1.2" | 25.5 | 0.0 |
| March | 53°F (12°C) | 30°F (-1°C) | 41°F (5°C) | 2.3" | 17.7 | 0.0 |
| April | 64°F (18°C) | 40°F (5°C) | 52°F (11°C) | 3.8" | 6.4 | 0.2 |
| May | 73°F (23°C) | 52°F (11°C) | 63°F (17°C) | 5.2" | 0.0 | 1.1 |
| June | 84°F (29°C) | 63°F (17°C) | 73°F (23°C) | 4.8" | 0.0 | 7.8 |
| July | 87°F (31°C) | 67°F (19°C) | 77°F (25°C) | 4.8" | 0.0 | 12.0 |
| August | 85°F (30°C) | 64°F (18°C) | 75°F (24°C) | 4.0" | 0.0 | 7.8 |
| September | 79°F (26°C) | 55°F (13°C) | 67°F (19°C) | 3.6" | 0.1 | 3.8 |
| October | 66°F (19°C) | 42°F (6°C) | 54°F (12°C) | 3.0" | 6.0 | 0.1 |
| November | 51°F (11°C) | 31°F (-1°C) | 41°F (5°C) | 2.0" | 16.7 | 0.0 |
| December | 40°F (4°C) | 21°F (-6°C) | 30°F (-1°C) | 1.5" | 27.7 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 88°F around July 17, short of 90°F on every date, while 131 dates carry a normal low at or below freezing, the coldest 15°F near January 18.
The freezing stretch
The normal low stays at or below 32°F into March 20, then returns to freezing around November 11, covering 131 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
October 5 carries the biggest normal gap between afternoon and dawn, 25°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Cosby.
Monthly Precipitation
Average monthly rainfall
Cosby runs a summer-peaked wet season
36% of Cosby'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 51.4°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, July, June, taking 40% of the annual total between them.
- Driest month: January at 0.9".
- Winter share: 10% 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.
Frost Dates & Growing Season
First Fall Freeze
October 19
50% probability date
Last Spring Freeze
April 17
50% probability date
Growing Season
185 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,718
Higher = more heating needed
Cooling Degree Days
1,167
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside MO closest to Cosby 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 (52°F here).
- Auburn, NE 52°F · 0.0°F off
- Blanding, UT 52°F · 0.0°F off
- Cleveland, OH 52°F · 0.0°F off
- Eads, CO 52°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (37.1" here), excluding temperature-peer places.
- Taylor, TX 37.1" · 0.0" off
- Smithville, TX 37.1" · 0.0" off
- Atlantic, IA 37.1" · 0.0" off
- Duncan, OK 37.1" · 0.0" off
Data-derived climate profile
How Cosby's climate pattern fits together
heating led · moderate · mid swing
Cosby's energy balance leans toward cold weather: 5,718 annual heating degree days against 1,167 for cooling. Its 51.4°F seasonal range still makes the monthly rows more useful than the annual average alone.
Cosby's frost-free season lasts about 185 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 Cosby's middle-range seasonal profile. The measured spread is 51.4°F. The annual average is 52°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Cosby's 37.1 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 Cosby'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 Cosby, not an official NOAA class or a year-ahead forecast.
Questions about Cosby's climate
How much rain does Cosby get? ▼
How many days above 90°F does Cosby get? ▼
How much energy does heating and cooling require in Cosby? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Cosby's primary station: COSBY 2W (USC00231924). 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 2916588). Match rule for Cosby: 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 Cosby 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.