Old Hickory Dam, TN 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 Old Hickory Dam's primary NOAA station, OLD HICKORY DAM.
The climate verdict for Old Hickory Dam
Water is the standout signal in Old Hickory Dam, Tennessee: 47.9 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 59°F. It scores 83/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 81% of them.
- 59°F
- annual average temperature (NOAA normal)
- 83/100
- comfort score, above 81% of station-mapped location scores
- 47.9"
- annual precipitation · 1" snow
- 201 days
- frost-free days per growing season
Old Hickory Dam: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00406803 · Old Hickory Dam, TN 59°F mean · 47.9" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-MID · SWING-MID · COMF-TOP · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-MILD 59°F
- RANK-UPPER #4,871
- PHOTO-FINISH ≈ Dresden
- PRCP-MID 47.9"
- SWING-MID 42°F
- COMF-TOP 83/100
- LOAD-HEAT 3,900 HDD
- STN-1 USC00406803
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Dresden, TN (+ 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 TN station list.
- Old Hickory Dam (this station) 59°F
- Hot Fayetteville NW…, AR 59°F
- Near Dresden, TN 59°F
- Near Silverton, TX 59°F
- Cold Tennessee Ridge, TN 58°F
Climate Living Index · Old Hickory Dam
Old Hickory Dam: 65/100 · grade C
Old Hickory Dam publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Old Hickory Dam, not an official NOAA rating. Rankings still use Comfort Score 83/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Snowfall burden | 1.2 inches/year | 81/100 · B |
| Annual temperature balance | 58.5°F · 9.0° from 67.5°F | 71/100 · B |
| Frost-free season | 201 days/year | 65/100 · C |
| Normal heat + freeze calendar | 127 calendar days | 60/100 · C |
| Precipitation balance | 47.9 in · 12.9 from 35 in | 55/100 · C |
Old Hickory Dam · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Old Hickory Dam is a temperate Köppen climate: Cfa
Coldest-month mean 37.1°F and warmest-month mean 78.6°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
- 78.6°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 Old Hickory Dam sits across the climate record
Three NOAA fields for Old Hickory Dam's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 29% warmest
- Among 6,861 stations, Old Hickory Dam sits in the warmer third of annual means.
- Annual precipitation
- Top 24% wettest
- Old Hickory Dam's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- 42nd percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Old Hickory Dam compares across U.S. station-mapped locations
Old Hickory Dam's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
83 Top 19% score exceeds 81% 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%). Below this entry.
- 70–80: 650 station-mapped locations (11%). Below this entry.
- 80–90: 921 station-mapped locations (15%). This entry sits in this band.
- 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 | 47°F (8°C) | 27°F (-3°C) | 37°F (3°C) | 3.7" | 0.6" | 22.8 | 0.0 |
| February | 51°F (11°C) | 30°F (-1°C) | 41°F (5°C) | 4.3" | 0.3" | 17.0 | 0.0 |
| March | 61°F (16°C) | 37°F (3°C) | 49°F (9°C) | 4.6" | 0.2" | 10.6 | 0.0 |
| April | 71°F (22°C) | 45°F (7°C) | 58°F (15°C) | 4.7" | 0.0" | 2.2 | 0.2 |
| May | 79°F (26°C) | 55°F (13°C) | 67°F (19°C) | 4.5" | 0.0" | 0.0 | 3.3 |
| June | 86°F (30°C) | 64°F (18°C) | 75°F (24°C) | 3.8" | 0.0" | 0.0 | 11.9 |
| July | 90°F (32°C) | 67°F (19°C) | 79°F (26°C) | 4.0" | 0.0" | 0.0 | 19.2 |
| August | 90°F (32°C) | 67°F (19°C) | 79°F (26°C) | 3.4" | 0.0" | 0.0 | 15.0 |
| September | 83°F (29°C) | 60°F (15°C) | 72°F (22°C) | 3.7" | 0.0" | 0.0 | 8.9 |
| October | 72°F (22°C) | 47°F (8°C) | 60°F (15°C) | 3.3" | 0.0" | 0.9 | 0.9 |
| November | 60°F (16°C) | 36°F (2°C) | 48°F (9°C) | 3.4" | 0.0" | 14.7 | 0.0 |
| December | 50°F (10°C) | 29°F (-2°C) | 40°F (4°C) | 4.4" | 0.1" | 17.8 | 0.0 |
The year, day by day
Old Hickory Dam works both ends of the calendar. Normal highs climb to 91°F by August 6 and hold at or above 90°F on 37 dates, then normal lows drop to freezing or below on 90 dates, bottoming at 27°F around January 4.
When the heat sits
Normal highs reach 90°F from July 16 through August 21, covering 37 dates. The broader mild season, normal highs of 70°F or more, runs April 11 to October 21.
This counts calendar dates whose 1991–2020 normal high reaches 90°F. It is a smaller number than the 90°F+ day counts in the monthly table above, which measure how often the threshold was actually crossed in a typical year. A date can average 88°F and still exceed 90°F in half of all years.
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 April 24, when 35% of years recorded at least a hundredth of an inch. The driest is August 27 at 22%. Summed across the calendar, that is about 105 wet dates a year.
The widest day
April 19 carries the biggest normal gap between afternoon and dawn, 27°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Old Hickory Dam.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 0.6"
9.5 days with precipitation
Snow: 0.3"
8.9 days with precipitation
Snow: 0.2"
10.5 days with precipitation
10.0 days with precipitation
9.8 days with precipitation
9.3 days with precipitation
8.8 days with precipitation
6.9 days with precipitation
6.9 days with precipitation
7.1 days with precipitation
8.2 days with precipitation
Snow: 0.1"
9.4 days with precipitation
Old Hickory Dam spreads its precipitation across the year
Neither half of the year dominates here: June through August take 23% of the annual total and December through February 26%, with neither reaching the 35% that would mark a distinct wet season. Old Hickory Dam has no dry season to plan around, though it does carry a 41.5°F seasonal spread.
The gap between the wettest and driest month still matters: April averages 4.7" and October 3.3". The three wettest months together take 29% 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 Old Hickory Dam, it arrives in quantity
47.9" of precipitation falls across only about 105 wet days here, averaging 0.46 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 105 a year, 29% of all days
- Average depth per wet day
- 0.46 inches
- Most wet days
- March, about 11
- Fewest wet days
- August, 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.
Snow reaches Old Hickory Dam, but rarely amounts to much
The normals record 1.2 inches of snow a year here, most likely in January. That is a real but marginal amount: enough that snow is part of the local record, not enough to define the winter.
A figure in this range usually reflects a handful of events that melt quickly rather than a season of accumulation; about 1 days a year record any measurable snow at all.
NOAA 1991-2020 normals. An average across thirty years can smooth away a single heavy winter, so a small annual figure does not mean a significant snowfall is impossible.
Frost Dates & Growing Season
First Fall Freeze
October 29
50% probability date
Last Spring Freeze
April 11
50% probability date
Growing Season
201 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
3,900
Higher = more heating needed
Cooling Degree Days
1,571
Higher = more cooling needed
Warmest Month
August
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside TN closest to Old Hickory Dam 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 (59°F here).
- Anna, IL 59°F · 0.0°F off
- Berkeley, CA 59°F · 0.0°F off
- Cape Charles, VA 59°F · 0.0°F off
- Cherokee, OK 59°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (47.9" here), excluding temperature-peer places.
- Fayetteville, NC 47.9" · 0.0" off
- Antlers, OK 47.9" · 0.0" off
- Gilmer, TX 47.9" · 0.0" off
- Damascus, MD 47.9" · 0.0" off
Data-derived climate profile
How Old Hickory Dam's climate pattern fits together
heating led · wet · mid swing
Old Hickory Dam's energy balance leans toward cold weather: 3,900 annual heating degree days against 1,571 for cooling. Its 41.5°F seasonal range still makes the monthly rows more useful than the annual average alone.
Old Hickory Dam's frost-free season lasts about 201 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
August and January mark the typical warm and cold ends of the calendar in Old Hickory Dam's middle-range seasonal profile. The measured spread is 41.5°F. The annual average is 59°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Alongside its heating load, Old Hickory Dam carries 47.9 inches of precipitation in a normal year, inside PlainClimate's wet range. Annual snowfall totals 1.2 inches. 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 Old Hickory Dam'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 Old Hickory Dam, not an official NOAA class or a year-ahead forecast.
Questions about Old Hickory Dam's climate
How much rain does Old Hickory Dam get? ▼
How many days above 90°F does Old Hickory Dam get? ▼
How much energy does heating and cooling require in Old Hickory Dam? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Old Hickory Dam's primary station: OLD HICKORY DAM (USC00406803). 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 Old Hickory Dam; 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 Old Hickory Dam 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.