Collierville, Tennessee climate: Normal weather by month, frost dates and records
Collierville's normal year runs from 29°F January nights to 91°F July afternoons, with 57.0 inches of precipitation and 1 inch of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 16.2°C, January lows of −2°C, July highs of 33°C, 1,447 mm of precipitation a year.
- NOAA stationCollierville
- Station IDUSC00401950
- Location35.08°N 89.67°W
- Elevation300 ft (91 m)
- Population51,951
On October 22, the normal high in Collierville is 73°F and the normal low 46°F, and the chance of measurable rain or snow is 27%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Collierville.
- Jan 50° 29°
- Feb 55° 32°
- Mar 64° 40°
- Apr 73° 49°
- May 82° 59°
- Jun 88° 67°
- Jul 91° 70°
- Aug 91° 68°
- Sep 85° 61°
- Oct 75° 49°
- Nov 63° 39°
- Dec 54° 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 Collierville each month?
July is the warmest month, with normal highs of 91°F; January the coldest, with normal lows of 29°F. The most precipitation falls in December (5.83 in), the least in August (3.43 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 50°F | 29°F | 39.6°F | 4.41 | 0.7 | 11 | <1 | 22 | 10 h |
| February | 55°F | 32°F | 43.5°F | 4.97 | 0.5 | 10 | <1 | 15 | 10 h 50 min |
| March | 64°F | 40°F | 52.1°F | 5.56 | 0.2 | 12 | <1 | 8 | 11 h 50 min |
| April | 73°F | 49°F | 61.1°F | 5.69 | 0.0 | 10 | <1 | 1 | 13 h |
| May | 82°F | 59°F | 70.2°F | 5.75 | 0.0 | 10 | 3 | <1 | 14 h |
| June | 88°F | 67°F | 77.4°F | 4.19 | 0.0 | 8 | 14 | <1 | 14 h 30 min |
| July | 91°F | 70°F | 80.9°F | 4.94 | 0.0 | 8 | 21 | <1 | 14 h 20 min |
| August | 91°F | 68°F | 79.5°F | 3.43 | 0.0 | 8 | 17 | <1 | 13 h 30 min |
| September | 85°F | 61°F | 72.9°F | 3.72 | 0.0 | 7 | 8 | <1 | 12 h 30 min |
| October | 75°F | 49°F | 61.8°F | 4.19 | 0.0 | 8 | 1 | 1 | 11 h 20 min |
| November | 63°F | 39°F | 50.9°F | 4.28 | 0.0 | 10 | <1 | 10 | 10 h 20 min |
| December | 54°F | 33°F | 43.2°F | 5.83 | 0.0 | 11 | <1 | 19 | 9 h 50 min |
| Year (annual) | 73°F | 50°F | 61.1°F | 56.96 | 1.4 | 114 | 63 | 75 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 10°C | −2°C | 4.2°C | 112 mm | 2 cm |
| February | 13°C | 0°C | 6.4°C | 126 mm | 1 cm |
| March | 18°C | 5°C | 11.2°C | 141 mm | 1 cm |
| April | 23°C | 9°C | 16.2°C | 145 mm | 0 cm |
| May | 28°C | 15°C | 21.2°C | 146 mm | 0 cm |
| June | 31°C | 19°C | 25.2°C | 106 mm | 0 cm |
| July | 33°C | 21°C | 27.2°C | 125 mm | 0 cm |
| August | 33°C | 20°C | 26.4°C | 87 mm | 0 cm |
| September | 29°C | 16°C | 22.7°C | 94 mm | 0 cm |
| October | 24°C | 9°C | 16.6°C | 106 mm | 0 cm |
| November | 17°C | 4°C | 10.5°C | 109 mm | 0 cm |
| December | 12°C | 0°C | 6.2°C | 148 mm | 0 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00401950; 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 Collierville?
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 USC00401950.
When is the last frost in Collierville?
In Collierville, 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 3 in half of years and before October 22 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 31 year in 10 before October 22; 9 in 10 before November 20
NOAA puts the median frost-free season at 220 days, and the season without a hard freeze (28°F) at 246 days.
A hard freeze (28°F) comes after March 13 in half of springs and before November 14 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Collierville in zone 8a across its 2 ZIP code areas (8a in 38017, the largest).
Frost dates for every NOAA station in Tennessee · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00401950; 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.
What hardiness zone is each Collierville ZIP code in?
The USDA's 2023 map gives each ZIP code area one zone. Collierville's 2 ZIP code areas are all in zone 8a. Each ZIP's frost dates are in the frost tool.
Source: USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; ZIP areas in the place: Census Bureau 2020 ZCTA-to-place relationship file. A ZIP area counts when at least a tenth of its land (and 0.5 km²) lies in the place.
How hot and how cold does it get in Collierville?
In a normal year in Collierville, 63 days a year reach 90°F (2 of them 100°F or more), 75 nights fall to 32°F or colder and 114 days bring measurable precipitation.
- Days at 90°F or more
- 63a normal year
- Days at 100°F or more
- 2a normal year
- Nights at 32°F or colder
- 75a normal year
- Days that stay below freezing
- 6high of 32°F or less
- Days with 0.01 inch of precipitation
- 114a normal year
- Days with 1 inch of snow or more
- 1a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00401950.
How sunny is Collierville?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Collierville, 4.4 kWh per square metre a day. August is the sunniest month (83%) and February the cloudiest (65%). Among the 459 U.S. places of 50,000 or more, that ranks tied 243rd (with 32 others) in sunshine.
| 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 Collierville need?
A normal year in Collierville brings 3,293 heating degree days, 39% fewer than the median U.S. place (5,373), and 1,899 cooling degree days, 2.1 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 5,146 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 789 | 1 |
| February | 602 | 1 |
| March | 411 | 11 |
| April | 175 | 57 |
| May | 32 | 193 |
| June | 1 | 374 |
| July | 0 | 491 |
| August | 0 | 450 |
| September | 15 | 250 |
| October | 162 | 64 |
| November | 427 | 6 |
| December | 678 | 1 |
| Year (annual) | 3,293 | 1,899 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00401950. 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 Collierville's climate compare?
Collierville is warmer than 109 of the other 115 places with their own NOAA record in Tennessee, and wetter than 66. Across the 7,247 U.S. stations with normals, its annual mean of 61.1°F is warmer than 77%.
In the Köppen classification computed from these normals, Collierville 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 Collierville share this climate record?
6 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.
- Arlington, TN15,550 people · 12 mi N
- Oakland, TN10,769 people · 12 mi NE
- Piperton, TN2,766 people · 4 mi SE
- Byhalia, MS1,370 people · 14 mi S
- Victoria, MS1,208 people · 17 mi S
- Rossville, TN1,183 people · 7 mi SE
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 Collierville's climate
What is the coldest month in Collierville?
January, with a normal high of 50°F and a normal low of 29°F. The warmest is July (91°F by day, 70°F at night).
Does it snow in Collierville?
Yes: 1 inch in a normal year, falling on 1 days with 0.1 inch or more, the most in January (0.7 inches).
What is the rainiest month in Collierville?
December, with 5.83 in of precipitation in a normal year; the driest is August with 3.43 in.
What plant hardiness zone is Collierville in?
The USDA's 2023 map puts Collierville in zone 8a across its 2 ZIP code areas (8a in 38017, the largest).
How late can frost come in Collierville?
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
- Germantown, TN4 miles from this station, 62.2°F a year
- Olive Branch, MS12 miles from this station, 61.8°F a year
- Moscow, TN14 miles from this station, 61.2°F a year
- Memphis, TN18 miles from this station, 63.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made