Knoxville Exp Stn, TN Climate: Temperature & Rain by Month
Annual temperature and rainfall from NOAA NCEI's 1991–2020 normals →; comfort score computed by PlainClimate
30-year climate normals (1991-2020) from Knoxville Exp Stn's primary NOAA station, KNOXVILLE EXP STN.
The climate verdict for Knoxville Exp Stn
Water is the standout signal in Knoxville Exp Stn, Tennessee: 55.8 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 58°F. Its climate comfort score of 68/100 (good) lands mid-pack nationally, exceeding 56% of station-mapped location scores.
- 58°F
- yearly average temperature, NOAA normal
- 68/100
- comfort score, above 56% of station-mapped location scores
- 55.8"
- precipitation, annual total
- 200 days
- growing season, frost-free days
Knoxville Exp Stn: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00404946 · Knoxville Exp Stn, TN 58°F mean · 55.8" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-WET · SWING-MID · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-MILD 58°F
- RANK-UPPER #4,734
- PHOTO-FINISH ≈ Hartsville
- PRCP-WET 55.8"
- SWING-MID 40°F
- COMF-MID 68/100
- LOAD-HEAT 3,911 HDD
- STN-1 USC00404946
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Hartsville, TN (+ 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 TN station list.
- Knoxville (this station) 58°F
- Cold Muleshoe, TX 58°F
- Hot Roanoke Rgnl, VA 58°F
- Near Hartsville, TN 58°F
- Near Sparta Wastewat…, TN 58°F
Climate Living Index · Knoxville Exp Stn
Knoxville Exp Stn: 63/100 · grade C
Knoxville Exp Stn publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Knoxville Exp Stn, not an official NOAA rating. Rankings still use Comfort Score 68/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 90 calendar days | 79/100 · B |
| Annual temperature balance | 57.9°F · 9.6° from 67.5°F | 69/100 · C |
| Frost-free season | 200 days/year | 64/100 · C |
| Precipitation balance | 55.8 in · 20.8 from 35 in | 25/100 · F |
Knoxville Exp Stn · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Knoxville Exp Stn is a temperate Köppen climate: Cfa
Coldest-month mean 37.1°F and warmest-month mean 77.2°F place this station in temperate, no dry season, hot summer climates (Cfa). Class Cfa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, no dry season, hot summer.
- Köppen code
- Cfa
- Group
- Temperate
- Warmest month
- 77.2°F
- Coldest month
- 37.1°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 Knoxville Exp Stn sits across the climate record
Three NOAA fields for Knoxville Exp Stn's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 69th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Top 10% wettest
- Knoxville Exp Stn's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- 36th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Knoxville Exp Stn compares across U.S. station-mapped locations
Knoxville Exp Stn'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 | 48°F (9°C) | 26°F (-3°C) | 37°F (3°C) | 5.2" | 21.9 | 0.0 |
| February | 53°F (11°C) | 29°F (-1°C) | 41°F (5°C) | 5.1" | 17.9 | 0.0 |
| March | 61°F (16°C) | 36°F (2°C) | 49°F (9°C) | 5.3" | 11.0 | 0.0 |
| April | 71°F (22°C) | 44°F (7°C) | 57°F (14°C) | 5.3" | 2.5 | 0.0 |
| May | 79°F (26°C) | 54°F (12°C) | 66°F (19°C) | 4.5" | 0.0 | 0.9 |
| June | 86°F (30°C) | 62°F (17°C) | 74°F (23°C) | 4.0" | 0.0 | 6.7 |
| July | 88°F (31°C) | 66°F (19°C) | 77°F (25°C) | 5.8" | 0.0 | 12.1 |
| August | 88°F (31°C) | 65°F (18°C) | 76°F (25°C) | 3.4" | 0.0 | 10.9 |
| September | 83°F (28°C) | 59°F (15°C) | 71°F (22°C) | 4.1" | 0.0 | 5.1 |
| October | 72°F (22°C) | 46°F (8°C) | 59°F (15°C) | 3.0" | 2.0 | 0.4 |
| November | 61°F (16°C) | 35°F (2°C) | 48°F (9°C) | 4.1" | 12.6 | 0.0 |
| December | 51°F (11°C) | 30°F (-1°C) | 40°F (5°C) | 5.9" | 19.4 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 88°F around July 10, short of 90°F on every date, while 90 dates carry a normal low at or below freezing, the coldest 26°F near January 19.
The freezing stretch
The normal low stays at or below 32°F into February 26, then returns to freezing around November 29, covering 90 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 March 10, when 41% of years recorded at least a hundredth of an inch. The driest is September 14 at 26%. Summed across the calendar, that is about 128 wet dates a year.
The widest day
October 29 carries the biggest normal gap between afternoon and dawn, 28°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Knoxville Exp Stn.
Where Knoxville Exp Stn Stands Nationally
This is one of the wettest normals climates ranked: about 56 inches of precipitation in a normal year, a total fewer than one station in ten surpasses.
Knoxville Exp Stn 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
11.7 days with precipitation
11.2 days with precipitation
12.9 days with precipitation
11.0 days with precipitation
11.6 days with precipitation
10.6 days with precipitation
11.7 days with precipitation
9.8 days with precipitation
8.5 days with precipitation
8.3 days with precipitation
9.0 days with precipitation
11.6 days with precipitation
Knoxville Exp Stn spreads its precipitation across the year
Neither half of the year dominates here: June through August take 24% of the annual total and December through February 29%, with neither reaching the 35% that would mark a distinct wet season. Knoxville Exp Stn has no dry season to plan around, though it does carry a 40.1°F seasonal spread.
The gap between the wettest and driest month still matters: December averages 5.9" and October 3.0". The three wettest months together take 30% 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 Knoxville Exp Stn, it arrives in quantity
55.8" of precipitation falls across only about 128 wet days here, averaging 0.44 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 128 a year, 35% of all days
- Average depth per wet day
- 0.44 inches
- Most wet days
- March, about 13
- Fewest wet days
- October, about 8
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 28
50% probability date
Last Spring Freeze
April 11
50% probability date
Growing Season
200 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
3,911
Higher = more heating needed
Cooling Degree Days
1,364
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside TN closest to Knoxville Exp Stn 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 (58°F here).
- Albuquerque, NM 58°F · 0.0°F off
- Buffalo, OK 58°F · 0.0°F off
- Lenoir, NC 58°F · 0.0°F off
- Marion, NC 58°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (55.8" here), excluding temperature-peer places.
- Moorhead, MS 55.8" · 0.0" off
- Richwood, WV 55.8" · 0.0" off
- Mount Ida, AR 55.8" · 0.0" off
- Manning, SC 55.7" · 0.1" off
Data-derived climate profile
How Knoxville Exp Stn's climate pattern fits together
heating led · wet · mid swing
Knoxville Exp Stn's energy balance leans toward cold weather: 3,911 annual heating degree days against 1,364 for cooling. Its 40.1°F seasonal range still makes the monthly rows more useful than the annual average alone.
Knoxville Exp Stn's frost-free season lasts about 200 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 Knoxville Exp Stn's middle-range seasonal profile. The measured spread is 40.1°F. The annual average is 58°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Alongside its heating load, Knoxville Exp Stn carries 55.8 inches of precipitation in a normal year, inside PlainClimate's wet range. Snowfall is not added to the interpretation because its annual value is missing. That distinction matters because a wet annual total can arrive as rain, snow, or a mixture at different times.
These labels group NOAA 1991-2020 normals from Knoxville Exp Stn'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 Knoxville Exp Stn, not an official NOAA class or a year-ahead forecast.
Questions about Knoxville Exp Stn's climate
How much rain does Knoxville Exp Stn get? ▼
How many days above 90°F does Knoxville Exp Stn get? ▼
How much energy does heating and cooling require in Knoxville Exp Stn? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Knoxville Exp Stn's primary station: KNOXVILLE EXP STN (USC00404946). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Knoxville Exp Stn; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Knoxville Exp Stn 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.