Gallatin, Tennessee climate: NOAA's gridded normals for the city, beside the nearest station records
NOAA's gridded 1991-2020 normals put Gallatin's center at January lows of 29°F and July highs of 89°F, a yearly mean of 59.0°F and 52.4 inches of precipitation. No NOAA station keeps a record under the city's name. The nearest station record, Bethpage (10 miles NE, 560 ft), has January lows of 25°F and July highs of 88°F.
52,489 people (Census Bureau 2024). Distances and directions are from the city's center.
- Jan 47° 29°
- Feb 52° 32°
- Mar 61° 39°
- Apr 71° 46°
- May 79° 56°
- Jun 86° 64°
- Jul 89° 68°
- Aug 89° 67°
- Sep 83° 60°
- Oct 72° 48°
- Nov 60° 37°
- Dec 50° 32°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
The months above are NOAA's gridded normals at Gallatin's center.
What is each month like in Gallatin?
NOAA's grid estimates the normals every 5 km or so from the stations around each point, terrain included. It smooths between stations, so night lows at the heart of a large city can run warmer than the grid shows: at five big-city airports we compared, the grid's highs were within about 1°F of the station and its lows 1-6°F cooler. The nearest record's high and low are beside each month.
| Month | High | Low | Mean | Precip. | Bethpage high | Bethpage low |
|---|---|---|---|---|---|---|
| January | 47°F | 29°F | 37.9°F | 4.16 | 45°F | 25°F |
| February | 52°F | 32°F | 41.7°F | 4.52 | 50°F | 28°F |
| March | 61°F | 39°F | 49.7°F | 4.75 | 59°F | 34°F |
| April | 71°F | 46°F | 58.6°F | 4.99 | 69°F | 43°F |
| May | 79°F | 56°F | 67.3°F | 5.25 | 77°F | 53°F |
| June | 86°F | 64°F | 75.1°F | 4.39 | 84°F | 62°F |
| July | 89°F | 68°F | 78.8°F | 4.62 | 88°F | 67°F |
| August | 89°F | 67°F | 77.6°F | 3.86 | 87°F | 65°F |
| September | 83°F | 60°F | 71.2°F | 3.71 | 82°F | 57°F |
| October | 72°F | 48°F | 59.9°F | 3.60 | 71°F | 44°F |
| November | 60°F | 37°F | 48.7°F | 3.73 | 59°F | 34°F |
| December | 50°F | 32°F | 41.1°F | 4.82 | 49°F | 28°F |
In metric: a yearly mean of 15.0°C, January lows of −2°C, July highs of 32°C and 1,331 mm of precipitation a year.
Source: NOAA NCEI U.S. Monthly Gridded Climate Normals 1991-2020 (nClimGrid, accession 0245564); NOAA NCEI 1991-2020 station normals. The grid cell holding the city's Census center point.
What do the station records around Gallatin say?
Each row is a NOAA station's own 1991-2020 normals, with the snow and frost dates the grid does not give. A record downhill or nearer the coast than the city can run warmer, one uphill cooler: compare the elevations.
| Record | Where | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Bethpage1 mi S | 10 mi NE | 560 ft | 56.7°F | 25°F | 88°F | 55.0 | 5 | April 16 |
| Old Hickory Weather Office | 11 mi SW | 590 ft | 58.6°F | 28°F | 89°F | 54.9 | 5 | April 1 |
| White House | 11 mi NW | 820 ft | 58.2°F | 27°F | 89°F | 54.4 | – | April 7 |
Source: NOAA NCEI 1991-2020 U.S. Climate Normals; place center and population: Census Bureau 2024. Last frost: the median last spring date of 32°F.
How much snow, how late a frost, what zone and how much sun in Gallatin?
NOAA's grid gives no snow, frost dates or records, so these come from the nearest station record, Bethpage (10 miles NE, 560 ft). It gets 5 inches of snow in a normal year. The last spring frost (32°F) comes after April 16 in half of years and the first autumn frost before October 23.
The USDA's 2023 Plant Hardiness Zone Map puts Gallatin in zone 7b (ZIP code 37066).
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds in the area (4.2 kWh per square metre a day, NASA POWER 2001-2020); August is the sunniest month (81%) and February the cloudiest (62%).
Bethpage's page has its months, frost probabilities, records by month and recent years. NOAA's grid has monthly figures only, so there are no day-by-day month pages for Gallatin; the nearest record's month pages have them.
Source: NOAA NCEI 1991-2020 normals, station USC00400669; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; sunshine: NASA POWER.
How does the climate vary across Gallatin, ZIP code by ZIP code?
One ZIP code area lies wholly or partly in Gallatin. Each row also names the nearest station record and its frost dates.
Source: Census Bureau 2020 ZCTA-to-place relationship file and ZCTA centers; NOAA NCEI gridded and station normals, 1991-2020. A ZIP area counts when at least a tenth of its land (and 0.5 km²) is in the city; its figures are the grid cell at its center; frost dates are the nearest record's medians of 32°F.