Henderson, Tennessee climate: Normal weather by month, frost dates and records
Henderson's normal year runs from 27°F January nights to 89°F July afternoons, with 61.8 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 14.5°C, January lows of −3°C, July highs of 31°C, 1,570 mm of precipitation a year.
- NOAA stationHenderson (4 mi W)
- Station IDUSC00404033
- Location35.44°N 88.72°W
- Elevation460 ft (140 m)
- Population6,519
On October 22, the normal high in Henderson is 70°F and the normal low 43°F, and the chance of measurable rain or snow is 28%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Henderson.
- Jan 48° 27°
- Feb 52° 30°
- Mar 62° 36°
- Apr 71° 45°
- May 79° 54°
- Jun 86° 63°
- Jul 89° 67°
- Aug 88° 65°
- Sep 83° 57°
- Oct 72° 46°
- Nov 60° 36°
- Dec 51° 29°
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 Henderson each month?
July is the warmest month, with normal highs of 89°F; January the coldest, with normal lows of 27°F. The most precipitation falls in April (6.40 in), the least in August (3.69 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 48°F | 27°F | 37.3°F | 5.24 | 10 | <1 | 22 | 10 h |
| February | 52°F | 30°F | 40.8°F | 5.59 | 10 | <1 | 19 | 10 h 50 min |
| March | 62°F | 36°F | 48.8°F | 6.08 | 12 | <1 | 12 | 11 h 50 min |
| April | 71°F | 45°F | 57.9°F | 6.40 | 10 | <1 | 3 | 13 h |
| May | 79°F | 54°F | 66.5°F | 5.82 | 11 | 1 | <1 | 14 h |
| June | 86°F | 63°F | 74.2°F | 5.13 | 9 | 8 | <1 | 14 h 30 min |
| July | 89°F | 67°F | 77.9°F | 4.98 | 10 | 15 | <1 | 14 h 20 min |
| August | 88°F | 65°F | 76.6°F | 3.69 | 8 | 13 | <1 | 13 h 30 min |
| September | 83°F | 57°F | 70.2°F | 4.58 | 7 | 5 | <1 | 12 h 30 min |
| October | 72°F | 46°F | 58.8°F | 4.18 | 8 | <1 | 3 | 11 h 20 min |
| November | 60°F | 36°F | 48.1°F | 4.47 | 9 | <1 | 13 | 10 h 20 min |
| December | 51°F | 29°F | 40.0°F | 5.66 | 11 | <1 | 20 | 9 h 50 min |
| Year (annual) | 70°F | 46°F | 58.1°F | 61.82 | 115 | 43 | 92 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 9°C | −3°C | 2.9°C | 133 mm |
| February | 11°C | −1°C | 4.9°C | 142 mm |
| March | 16°C | 2°C | 9.3°C | 154 mm |
| April | 22°C | 7°C | 14.4°C | 163 mm |
| May | 26°C | 12°C | 19.2°C | 148 mm |
| June | 30°C | 17°C | 23.4°C | 130 mm |
| July | 31°C | 20°C | 25.5°C | 126 mm |
| August | 31°C | 18°C | 24.8°C | 94 mm |
| September | 28°C | 14°C | 21.2°C | 116 mm |
| October | 22°C | 8°C | 14.9°C | 106 mm |
| November | 16°C | 2°C | 8.9°C | 114 mm |
| December | 11°C | −2°C | 4.4°C | 144 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Jackson Experiment Station (14 miles away), gets 3 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00404033; 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 Henderson?
Normal highs sit between 65°F and 85°F in April, May, 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 USC00404033.
When is the last frost in Henderson?
In Henderson, the last spring frost (32°F) comes after April 10 in half of years and after April 26 in one year in ten; the first autumn frost comes before October 25 in half of years and before October 12 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 101 year in 10 after April 26; 9 in 10 after March 26
- First autumn frost, half of years before
- October 251 year in 10 before October 12; 9 in 10 before November 8
NOAA puts the median frost-free season at 200 days, and the season without a hard freeze (28°F) at 221 days.
A hard freeze (28°F) comes after March 30 in half of springs and before November 4 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Henderson in zone 7b in ZIP code 38340, 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 USC00404033; 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 Henderson?
In a normal year in Henderson, 43 days a year reach 90°F (2 of them 100°F or more), 92 nights fall to 32°F or colder and 115 days bring measurable precipitation.
- Days at 90°F or more
- 43a normal year
- Days at 100°F or more
- 2a normal year
- Nights at 32°F or colder
- 92a normal year
- Days that stay below freezing
- 8high of 32°F or less
- Days with 0.01 inch of precipitation
- 115a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00404033.
How sunny is Henderson?
Over a year 76% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Henderson, 4.4 kWh per square metre a day. June is the sunniest month (82%) and February the cloudiest (64%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 68% | 2.4 |
| February | 64% | 2.9 |
| March | 68% | 4.0 |
| April | 74% | 5.3 |
| May | 76% | 5.9 |
| June | 82% | 6.5 |
| July | 82% | 6.3 |
| August | 82% | 5.7 |
| September | 81% | 4.9 |
| October | 77% | 3.8 |
| November | 74% | 2.8 |
| December | 66% | 2.1 |
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 Henderson need?
A normal year in Henderson brings 3,898 heating degree days, 27% fewer than the median U.S. place (5,373), and 1,410 cooling degree days, 55% 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 4,379 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 860 | 0 |
| February | 678 | 1 |
| March | 507 | 4 |
| April | 240 | 27 |
| May | 72 | 117 |
| June | 3 | 279 |
| July | 0 | 401 |
| August | 1 | 362 |
| September | 28 | 184 |
| October | 225 | 33 |
| November | 511 | 2 |
| December | 774 | 1 |
| Year (annual) | 3,898 | 1,410 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00404033. 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 Henderson's climate compare?
Henderson is warmer than 49 of the other 115 places with their own NOAA record in Tennessee, and wetter than 102. Across the 7,247 U.S. stations with normals, its annual mean of 58.1°F is warmer than 69%.
In the Köppen classification computed from these normals, Henderson 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 Henderson share this climate record?
7 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.
- Beech Bluff, TN511 people · 12 mi NE
- Pinson, TN464 people · 3 mi N
- Finger, TN279 people · 9 mi SE
- Medon, TN194 people · 8 mi W
- Enville, TN189 people · 17 mi E
- Silerton, TN97 people · 9 mi SW
- Jacks Creek, TN14 people · 12 mi E
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 Henderson's climate
What is the coldest month in Henderson?
January, with a normal high of 48°F and a normal low of 27°F. The warmest is July (89°F by day, 67°F at night).
Does it snow in Henderson?
Yes. NOAA publishes no 1991-2020 snowfall normal for Henderson's NOAA station; the nearest record that keeps one, Jackson Experiment Station (14 miles away), records 3 inches of snow in a normal year.
What is the rainiest month in Henderson?
April, with 6.40 in of precipitation in a normal year; the driest is August with 3.69 in.
What plant hardiness zone is Henderson in?
The USDA's 2023 map puts Henderson in zone 7b in ZIP code 38340, the nearest ZIP area.
How late can frost come in Henderson?
In half of years the last 32°F night comes after April 10; in one year in ten it comes after April 26. Waiting until April 26 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Tennessee climateThe statewide normals and every place in the state
- Jackson, TN15 miles from this station, 60.0°F a year
- Bolivar, TN19 miles from this station, 59.6°F a year
- Selmer, TN21 miles from this station, 60.4°F a year
- Lexington, TN24 miles from this station, 59.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made