Dover, Tennessee climate: Normal weather by month, frost dates and records
Dover's normal year runs from 27°F January nights to 88°F July afternoons, with 54.8 inches of precipitation and 4 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 14.8°C, January lows of −3°C, July highs of 31°C, 1,392 mm of precipitation a year.
- NOAA stationDover (1 mi W)
- Station IDUSC00402589
- Location36.48°N 87.86°W
- Elevation475 ft (145 m)
- Population1,893
On October 23, the normal high in Dover is 68°F and the normal low 45°F, and the chance of measurable rain or snow is 25%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Dover.
- Jan 46° 27°
- Feb 51° 30°
- Mar 60° 38°
- Apr 70° 47°
- May 77° 57°
- Jun 84° 66°
- Jul 88° 69°
- Aug 88° 68°
- Sep 82° 60°
- Oct 71° 48°
- Nov 60° 38°
- Dec 50° 31°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Dover each month?
July is the warmest month, with normal highs of 88°F; January the coldest, with normal lows of 27°F. The most precipitation falls in May (6.03 in), the least in September (3.56 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 46°F | 27°F | 36.7°F | 4.19 | 1.3 | 9 | <1 | 22 | 10 h |
| February | 51°F | 30°F | 40.6°F | 4.82 | 1.3 | 8 | <1 | 17 | 10 h 50 min |
| March | 60°F | 38°F | 49.4°F | 5.24 | 0.4 | 10 | <1 | 10 | 11 h 50 min |
| April | 70°F | 47°F | 58.7°F | 5.66 | 0.0 | 10 | <1 | 2 | 13 h 10 min |
| May | 77°F | 57°F | 67.2°F | 6.03 | 0.0 | 10 | <1 | <1 | 14 h |
| June | 84°F | 66°F | 74.9°F | 4.53 | 0.0 | 8 | 5 | <1 | 14 h 40 min |
| July | 88°F | 69°F | 78.4°F | 4.32 | 0.0 | 8 | 12 | <1 | 14 h 30 min |
| August | 88°F | 68°F | 77.7°F | 3.77 | 0.0 | 7 | 11 | <1 | 13 h 40 min |
| September | 82°F | 60°F | 70.9°F | 3.56 | 0.0 | 7 | 4 | <1 | 12 h 30 min |
| October | 71°F | 48°F | 59.2°F | 3.82 | 0.0 | 7 | <1 | 1 | 11 h 20 min |
| November | 60°F | 38°F | 48.9°F | 4.26 | 0.1 | 8 | <1 | 9 | 10 h 20 min |
| December | 50°F | 31°F | 40.4°F | 4.60 | 0.7 | 9 | <1 | 18 | 9 h 40 min |
| Year (annual) | 69°F | 48°F | 58.6°F | 54.80 | 3.8 | 100 | 34 | 79 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 8°C | −3°C | 2.6°C | 106 mm | 3 cm |
| February | 10°C | −1°C | 4.8°C | 122 mm | 3 cm |
| March | 16°C | 4°C | 9.7°C | 133 mm | 1 cm |
| April | 21°C | 8°C | 14.8°C | 144 mm | 0 cm |
| May | 25°C | 14°C | 19.6°C | 153 mm | 0 cm |
| June | 29°C | 19°C | 23.8°C | 115 mm | 0 cm |
| July | 31°C | 21°C | 25.8°C | 110 mm | 0 cm |
| August | 31°C | 20°C | 25.4°C | 96 mm | 0 cm |
| September | 28°C | 16°C | 21.6°C | 90 mm | 0 cm |
| October | 22°C | 9°C | 15.1°C | 97 mm | 0 cm |
| November | 15°C | 3°C | 9.4°C | 108 mm | 0 cm |
| December | 10°C | 0°C | 4.7°C | 117 mm | 2 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00402589; 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.
When is the best weather to visit Dover?
Normal highs sit between 65°F and 85°F in April, May, June, September and October. Of those, September has the fewest days with rain (7).
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 USC00402589.
When is the last frost in Dover?
In Dover, the last spring frost (32°F) comes after April 4 in half of years and after April 21 in one year in ten; the first autumn frost comes before October 31 in half of years and before October 18 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 41 year in 10 after April 21; 9 in 10 after March 17
- First autumn frost, half of years before
- October 311 year in 10 before October 18; 9 in 10 before November 15
NOAA puts the median frost-free season at 210 days, and the season without a hard freeze (28°F) at 234 days.
A hard freeze (28°F) comes after March 23 in half of springs and before November 11 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Dover in zone 7b in ZIP code 37058, the nearest ZIP area.
Frost dates for every NOAA station in Tennessee · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00402589; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. 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 in Dover?
In a normal year in Dover, 34 days a year reach 90°F (1 of them 100°F or more), 79 nights fall to 32°F or colder and 100 days bring measurable precipitation.
- Days at 90°F or more
- 34a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 79a normal year
- Days that stay below freezing
- 10high of 32°F or less
- Days with 0.01 inch of precipitation
- 100a normal year
- Days with 1 inch of snow or more
- 1a normal year
The highest temperature in this station's record (since 1897) is 108°F, on June 30, 2012; the lowest is −24°F, on January 24, 1963.
The wettest calendar year on that record is 1923, with 70.67 in; the snowiest season is 1967–68, with 34.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00402589; records: ACIS (NOAA Regional Climate Centers), station USC00402589. Records use complete months only; a month missing more than three days is left out.
How sunny is Dover?
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Dover, 4.3 kWh per square metre a day. August is the sunniest month (81%) and February the cloudiest (63%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 66% | 2.2 |
| February | 63% | 2.8 |
| March | 67% | 3.9 |
| April | 73% | 5.2 |
| May | 75% | 5.8 |
| June | 81% | 6.4 |
| July | 81% | 6.2 |
| August | 81% | 5.6 |
| September | 80% | 4.8 |
| October | 76% | 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 much heating and cooling does Dover need?
A normal year in Dover brings 3,845 heating degree days, 28% fewer than the median U.S. place (5,373), and 1,539 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 4,553 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 877 | 0 |
| February | 684 | 1 |
| March | 493 | 9 |
| April | 227 | 38 |
| May | 64 | 131 |
| June | 4 | 302 |
| July | 0 | 415 |
| August | 1 | 394 |
| September | 27 | 204 |
| October | 219 | 41 |
| November | 489 | 4 |
| December | 761 | 0 |
| Year (annual) | 3,845 | 1,539 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00402589. 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.
How does Dover's climate compare?
Dover is warmer than 65 of the other 115 places with their own NOAA record in Tennessee, and wetter than 41. 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, Dover 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 Dover share this climate record?
Big Rock has no NOAA station with 1991-2020 normals of its 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.
- Big Rock, TN161 people · 9 mi NE
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 Dover's climate
What is the coldest month in Dover?
January, with a normal high of 46°F and a normal low of 27°F. The warmest is July (88°F by day, 69°F at night).
Does it snow in Dover?
Yes: 4 inches in a normal year, falling on 2 days with 0.1 inch or more, the most in January (1.3 inches).
What is the rainiest month in Dover?
May, with 6.03 in of precipitation in a normal year; the driest is September with 3.56 in.
What plant hardiness zone is Dover in?
The USDA's 2023 map puts Dover in zone 7b in ZIP code 37058, the nearest ZIP area.
How late can frost come in Dover?
In half of years the last 32°F night comes after April 4; in one year in ten it comes after April 21. Waiting until April 21 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Tennessee climateThe statewide normals and every place in the state
- Tennessee Ridge, TN12 miles from this station, 58.4°F a year
- Big Sandy, TN21 miles from this station, 59.3°F a year
- Kenlake Resort, KY25 miles from this station, 59.1°F a year
- Waverly, TN26 miles from this station, 58.9°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made