Old Hickory Weather Office, Tennessee climate: Climate normals at a NOAA weather station
Old Hickory Weather Office's normal year runs from 28°F January nights to 89°F July afternoons, with 54.9 inches of precipitation and 5 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 14.8°C, January lows of −2°C, July highs of 31°C, 1,393 mm of precipitation a year.
- NOAA stationOld Hickory Weather Office
- Station IDUSC00406806
- Location36.25°N 86.56°W
- Elevation590 ft (180 m)
On October 23, the normal high in Old Hickory Weather Office is 69°F and the normal low 46°F, and the chance of measurable rain or snow is 30%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Old Hickory Weather Office.
- Jan 46° 28°
- Feb 51° 30°
- Mar 60° 38°
- Apr 70° 47°
- May 78° 56°
- Jun 85° 65°
- Jul 89° 68°
- Aug 88° 67°
- Sep 82° 61°
- Oct 72° 49°
- Nov 59° 38°
- Dec 50° 32°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like at Old Hickory Weather Office each month?
July is the warmest month, with normal highs of 89°F; January the coldest, with normal lows of 28°F. The most precipitation falls in May (5.43 in), the least in October (3.52 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 46°F | 28°F | 37.0°F | 4.34 | 1.9 | 12 | <1 | 19 | 10 h |
| February | 51°F | 30°F | 40.5°F | 4.68 | 1.6 | 11 | <1 | 15 | 10 h 50 min |
| March | 60°F | 38°F | 48.8°F | 4.94 | 0.5 | 13 | <1 | 8 | 11 h 50 min |
| April | 70°F | 47°F | 58.6°F | 5.18 | 0.0 | 12 | <1 | 1 | 13 h |
| May | 78°F | 56°F | 67.1°F | 5.43 | 0.0 | 12 | 1 | <1 | 14 h |
| June | 85°F | 65°F | 74.9°F | 4.41 | 0.0 | 11 | 8 | <1 | 14 h 40 min |
| July | 89°F | 68°F | 78.5°F | 4.85 | 0.0 | 11 | 15 | <1 | 14 h 20 min |
| August | 88°F | 67°F | 77.6°F | 4.63 | 0.0 | 10 | 13 | <1 | 13 h 30 min |
| September | 82°F | 61°F | 71.4°F | 4.04 | 0.0 | 8 | 5 | <1 | 12 h 30 min |
| October | 72°F | 49°F | 60.2°F | 3.52 | 0.0 | 9 | <1 | 1 | 11 h 20 min |
| November | 59°F | 38°F | 48.7°F | 4.00 | 0.1 | 10 | <1 | 8 | 10 h 20 min |
| December | 50°F | 32°F | 40.6°F | 4.83 | 0.5 | 12 | <1 | 16 | 9 h 40 min |
| Year (annual) | 69°F | 48°F | 58.6°F | 54.85 | 4.6 | 132 | 42 | 69 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 8°C | −2°C | 2.8°C | 110 mm | 5 cm |
| February | 10°C | −1°C | 4.7°C | 119 mm | 4 cm |
| March | 16°C | 3°C | 9.3°C | 125 mm | 1 cm |
| April | 21°C | 8°C | 14.8°C | 132 mm | 0 cm |
| May | 25°C | 13°C | 19.5°C | 138 mm | 0 cm |
| June | 30°C | 18°C | 23.8°C | 112 mm | 0 cm |
| July | 31°C | 20°C | 25.8°C | 123 mm | 0 cm |
| August | 31°C | 19°C | 25.3°C | 118 mm | 0 cm |
| September | 28°C | 16°C | 21.9°C | 103 mm | 0 cm |
| October | 22°C | 9°C | 15.7°C | 89 mm | 0 cm |
| November | 15°C | 3°C | 9.3°C | 102 mm | 0 cm |
| December | 10°C | 0°C | 4.8°C | 123 mm | 1 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00406806; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
Which months are mildest at Old Hickory Weather Office?
Normal highs sit between 65°F and 85°F in April, May, September and October. Of those, September has the fewest days with rain (8).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00406806.
When is the last frost at Old Hickory Weather Office?
In Old Hickory Weather Office, the last spring frost (32°F) comes after April 1 in half of years and after April 17 in one year in ten; the first autumn frost comes before November 4 in half of years and before October 23 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 11 year in 10 after April 17; 9 in 10 after March 17
- First autumn frost, half of years before
- November 41 year in 10 before October 23; 9 in 10 before November 20
NOAA puts the median frost-free season at 216 days, and the season without a hard freeze (28°F) at 241 days.
A hard freeze (28°F) comes after March 20 in half of springs and before November 15 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Old Hickory Weather Office in zone 7b in ZIP code 37138, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 7b: the coldest night of a typical year reaches 8°F (29 complete years).
Frost dates for every NOAA station in Tennessee · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00406806; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get at Old Hickory Weather Office?
In a normal year in Old Hickory Weather Office, 42 days a year reach 90°F (1 of them 100°F or more), 69 nights fall to 32°F or colder and 132 days bring measurable precipitation.
- Days at 90°F or more
- 42a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 69a normal year
- Days that stay below freezing
- 8high of 32°F or less
- Days with 0.01 inch of precipitation
- 132a normal year
- Days with 1 inch of snow or more
- 1a normal year
The highest temperature in this station's record (since 1990) is 107°F, on July 1, 2012; the lowest is −5°F, on January 19, 1994.
The wettest calendar year on that record is 2019, with 73.14 in; the snowiest season is 2002–03, with 15.1 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00406806; records: ACIS (NOAA Regional Climate Centers), station USC00406806. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Old Hickory Weather Office?
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds at Old Hickory Weather Office, 4.2 kWh per square metre a day. August is the sunniest month (81%) and February the cloudiest (62%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 65% | 2.2 |
| February | 62% | 2.8 |
| March | 67% | 3.9 |
| April | 74% | 5.2 |
| May | 75% | 5.7 |
| June | 80% | 6.3 |
| July | 80% | 6.1 |
| August | 81% | 5.6 |
| September | 79% | 4.7 |
| October | 75% | 3.6 |
| November | 73% | 2.6 |
| December | 64% | 1.9 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How many heating and cooling degree days does Old Hickory Weather Office record?
A normal year at Old Hickory Weather Office brings 3,825 heating degree days, 29% fewer than the median U.S. place (5,373), and 1,542 cooling degree days, 70% more than the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 4,558 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 869 | 0 |
| February | 688 | 0 |
| March | 508 | 6 |
| April | 227 | 34 |
| May | 67 | 130 |
| June | 4 | 300 |
| July | 0 | 417 |
| August | 0 | 389 |
| September | 22 | 215 |
| October | 195 | 46 |
| November | 491 | 3 |
| December | 755 | 0 |
| Year (annual) | 3,825 | 1,542 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00406806. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Have recent years at Old Hickory Weather Office been warmer than normal?
2025 averaged 60.2°F, 1.6°F above the 1991-2020 normal of 58.6°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 59.4°F | +0.8°F | 60.26 | – |
| 2022 | 59.2°F | +0.6°F | 49.56 | 13.8 |
| 2023 | 60.6°F | +2.0°F | 43.75 | 0.0 |
| 2024 | 61.1°F | +2.5°F | 53.36 | 8.1 |
| 2025 | 60.2°F | +1.6°F | 53.82 | 5.0 |
Over 32 complete years from 1987 to 2025, the station's annual mean temperature rose at a fitted 5.2°F per century (+0.29°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00406806; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Old Hickory Weather Office's climate compare?
Old Hickory Weather Office is warmer than 65 of the 116 places with their own NOAA record in Tennessee, and wetter than 42. Across the 7,247 U.S. stations with normals, its annual mean of 58.6°F is warmer than 71%.
In the Köppen classification computed from these normals, Old Hickory Weather Office is Cfa: temperate, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Old Hickory Weather Office share this climate record?
2 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Mount Juliet, TN44,066 people · 4 mi SE
- Green Hill, TN6,617 people · 1 mi SW
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Old Hickory Weather Office's climate
What is the coldest month at Old Hickory Weather Office?
January, with a normal high of 46°F and a normal low of 28°F. The warmest is July (89°F by day, 68°F at night).
Does it snow at Old Hickory Weather Office?
Yes: 5 inches in a normal year, falling on 5 days with 0.1 inch or more, the most in January (1.9 inches).
What is the rainiest month at Old Hickory Weather Office?
May, with 5.43 in of precipitation in a normal year; the driest is October with 3.52 in.
What plant hardiness zone is Old Hickory Weather Office in?
The USDA's 2023 map puts Old Hickory Weather Office in zone 7b in ZIP code 37138, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 8°F (29 years, 1991-2020): zone 7b.
How late can frost come at Old Hickory Weather Office?
In half of years the last 32°F night comes after April 1; in one year in ten it comes after April 17. Waiting until April 17 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Tennessee climateThe statewide normals and every place in the state
- Old Hickory Dam, TN6 miles from this station, 58.5°F a year
- Shelby Bottoms Nature, TN11 miles from this station, 59.3°F a year
- Nashville, TN11 miles from this station, 60.8°F a year
- Lebanon, TN14 miles from this station, 59.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made