Brownsville, Tennessee climate: Normal weather by month, frost dates and records
Brownsville's normal year runs from 30°F January nights to 91°F July afternoons, with 56.1 inches of precipitation and 2 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 16.1°C, January lows of −1°C, July highs of 33°C, 1,425 mm of precipitation a year.
- NOAA stationBrownsville
- Station IDUSC00401145
- Location35.59°N 89.26°W
- Elevation330 ft (101 m)
- From the centerunder 1 mile
- Population9,358
On October 8, the normal high in Brownsville is 77°F and the normal low 53°F, and the chance of measurable rain or snow is 23%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Brownsville.
- Jan 48° 30°
- Feb 53° 33°
- Mar 62° 41°
- Apr 72° 50°
- May 80° 60°
- Jun 88° 68°
- Jul 91° 71°
- Aug 90° 70°
- Sep 85° 62°
- Oct 74° 50°
- Nov 61° 40°
- Dec 51° 33°
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 Brownsville each month?
July is the warmest month, with normal highs of 91°F; January the coldest, with normal lows of 30°F. The most precipitation falls in May (6.00 in), the least in August (3.32 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 48°F | 30°F | 39.0°F | 4.19 | 0.8 | 10 | <1 | 20 | 10 h |
| February | 53°F | 33°F | 43.1°F | 4.95 | 0.8 | 10 | <1 | 14 | 10 h 50 min |
| March | 62°F | 41°F | 51.4°F | 5.56 | 0.4 | 11 | <1 | 7 | 11 h 50 min |
| April | 72°F | 50°F | 61.0°F | 5.15 | 0.1 | 10 | <1 | 1 | 13 h |
| May | 80°F | 60°F | 70.2°F | 6.00 | 0.0 | 10 | 2 | <1 | 14 h |
| June | 88°F | 68°F | 77.8°F | 4.68 | 0.0 | 9 | 12 | <1 | 14 h 30 min |
| July | 91°F | 71°F | 81.0°F | 4.13 | 0.0 | 8 | 19 | <1 | 14 h 20 min |
| August | 90°F | 70°F | 79.9°F | 3.32 | 0.0 | 7 | 17 | <1 | 13 h 30 min |
| September | 85°F | 62°F | 73.4°F | 3.85 | 0.0 | 7 | 7 | <1 | 12 h 30 min |
| October | 74°F | 50°F | 61.9°F | 3.80 | 0.0 | 7 | <1 | 1 | 11 h 20 min |
| November | 61°F | 40°F | 50.5°F | 4.71 | 0.0 | 9 | <1 | 8 | 10 h 20 min |
| December | 51°F | 33°F | 42.3°F | 5.78 | 0.1 | 11 | <1 | 16 | 9 h 50 min |
| Year (annual) | 71°F | 51°F | 60.9°F | 56.12 | 2.2 | 108 | 57 | 67 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 9°C | −1°C | 3.9°C | 106 mm | 2 cm |
| February | 12°C | 1°C | 6.2°C | 126 mm | 2 cm |
| March | 17°C | 5°C | 10.8°C | 141 mm | 1 cm |
| April | 22°C | 10°C | 16.1°C | 131 mm | 0 cm |
| May | 27°C | 16°C | 21.2°C | 152 mm | 0 cm |
| June | 31°C | 20°C | 25.4°C | 119 mm | 0 cm |
| July | 33°C | 22°C | 27.2°C | 105 mm | 0 cm |
| August | 32°C | 21°C | 26.6°C | 84 mm | 0 cm |
| September | 29°C | 17°C | 23.0°C | 98 mm | 0 cm |
| October | 23°C | 10°C | 16.6°C | 97 mm | 0 cm |
| November | 16°C | 4°C | 10.3°C | 120 mm | 0 cm |
| December | 11°C | 1°C | 5.7°C | 147 mm | 0 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00401145; 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 Brownsville?
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 USC00401145.
When is the last frost in Brownsville?
In Brownsville, the last spring frost (32°F) comes after March 29 in half of years and after April 15 in one year in ten; the first autumn frost comes before November 5 in half of years and before October 24 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
- March 291 year in 10 after April 15; 9 in 10 after March 9
- First autumn frost, half of years before
- November 51 year in 10 before October 24; 9 in 10 before November 22
NOAA puts the median frost-free season at 221 days, and the season without a hard freeze (28°F) at 246 days.
A hard freeze (28°F) comes after March 16 in half of springs and before November 17 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Brownsville in zone 8a in ZIP code 38012, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Brownsville's NOAA station is in zone 8a: the coldest night of a typical year reaches 11°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 USC00401145; 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 in Brownsville?
In a normal year in Brownsville, 57 days a year reach 90°F (2 of them 100°F or more), 67 nights fall to 32°F or colder and 108 days bring measurable precipitation.
- Days at 90°F or more
- 57a normal year
- Days at 100°F or more
- 2a normal year
- Nights at 32°F or colder
- 67a normal year
- Days that stay below freezing
- 7high of 32°F or less
- Days with 0.01 inch of precipitation
- 108a normal year
- Days with 1 inch of snow or more
- 1a normal year
The highest temperature in this station's record (since 1895) is 109°F, on July 12, 1930; the lowest is −10°F, on January 7, 1912.
The wettest calendar year on that record is 1945, with 70.47 in; the snowiest season is 1967–68, with 31.8 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00401145; records: ACIS (NOAA Regional Climate Centers), station USC00401145. Records use complete months only; a month missing more than three days is left out.
How sunny is Brownsville?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Brownsville, 4.4 kWh per square metre a day. August is the sunniest month (83%) and February the cloudiest (65%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 69% | 2.4 |
| February | 65% | 3.0 |
| March | 69% | 4.1 |
| April | 75% | 5.3 |
| May | 77% | 6.0 |
| June | 83% | 6.6 |
| July | 83% | 6.3 |
| August | 83% | 5.8 |
| September | 81% | 4.9 |
| October | 78% | 3.8 |
| November | 74% | 2.8 |
| December | 67% | 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 Brownsville need?
A normal year in Brownsville brings 3,399 heating degree days, 37% fewer than the median U.S. place (5,373), and 1,955 cooling degree days, 2.2 times 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 5,179 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 806 | 1 |
| February | 614 | 1 |
| March | 433 | 12 |
| April | 179 | 59 |
| May | 36 | 197 |
| June | 1 | 387 |
| July | 0 | 496 |
| August | 0 | 460 |
| September | 15 | 267 |
| October | 164 | 68 |
| November | 444 | 7 |
| December | 706 | 1 |
| Year (annual) | 3,399 | 1,955 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00401145. 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.
Has Brownsville been warmer than normal lately?
Over 76 complete years from 1915 to 2018, the station's annual mean temperature rose at a fitted -0.1°F per century (−0.00°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Brownsville's climate compare?
Brownsville is warmer than 108 of the other 115 places with their own NOAA record in Tennessee, and wetter than 58. Across the 7,247 U.S. stations with normals, its annual mean of 60.9°F is warmer than 77%.
In the Köppen classification computed from these normals, Brownsville 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 Brownsville 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.
- Stanton, TN415 people · 12 mi SW
- Dancyville, TN44 people · 13 mi S
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 Brownsville's climate
What is the coldest month in Brownsville?
January, with a normal high of 48°F and a normal low of 30°F. The warmest is July (91°F by day, 71°F at night).
Does it snow in Brownsville?
Yes: 2 inches in a normal year, falling on 2 days with 0.1 inch or more, the most in January (0.8 inches).
What is the rainiest month in Brownsville?
May, with 6.00 in of precipitation in a normal year; the driest is August with 3.32 in.
What plant hardiness zone is Brownsville in?
The USDA's 2023 map puts Brownsville in zone 8a in ZIP code 38012, the nearest ZIP area. By the same method at Brownsville's NOAA station, the coldest night of a typical year reaches 11°F (29 years, 1991-2020): zone 8a.
How late can frost come in Brownsville?
In half of years the last 32°F night comes after March 29; in one year in ten it comes after April 15. Waiting until April 15 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Tennessee climateThe statewide normals and every place in the state
- Ripley, TN16 miles from this station, 60.2°F a year
- Alamo, TN16 miles from this station, 59.5°F a year
- Jackson, TN19 miles from this station, 60.0°F a year
- Covington, TN25 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