Houston, Mississippi climate: Normal weather by month, frost dates and records
Houston's normal year runs from 32°F January nights to 90°F July afternoons, with 59.3 inches of precipitation and less than an inch of snow (0.8 in) a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 16.8°C, January lows of 0°C, July highs of 32°C, 1,507 mm of precipitation a year.
- NOAA stationHouston
- Station IDUSC00224265
- Location33.88°N 88.99°W
- Elevation290 ft (88 m)
- Population3,702
On October 22, the normal high in Houston is 74°F and the normal low 48°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 Houston.
- Jan 53° 32°
- Feb 58° 35°
- Mar 66° 43°
- Apr 74° 50°
- May 82° 59°
- Jun 88° 67°
- Jul 90° 70°
- Aug 91° 69°
- Sep 86° 62°
- Oct 76° 50°
- Nov 64° 40°
- Dec 55° 35°
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 Houston each month?
July is the warmest month, with normal highs of 90°F; January the coldest, with normal lows of 32°F. The most precipitation falls in April (6.08 in), the least in October (3.36 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 53°F | 32°F | 42.5°F | 5.12 | 9 | <1 | 18 | 10 h 10 min |
| February | 58°F | 35°F | 46.3°F | 5.80 | 10 | <1 | 15 | 11 h |
| March | 66°F | 43°F | 54.6°F | 5.14 | 10 | <1 | 8 | 11 h 50 min |
| April | 74°F | 50°F | 62.0°F | 6.08 | 8 | <1 | 2 | 13 h |
| May | 82°F | 59°F | 70.4°F | 5.67 | 9 | 2 | <1 | 13 h 50 min |
| June | 88°F | 67°F | 77.7°F | 5.59 | 9 | 9 | <1 | 14 h 20 min |
| July | 90°F | 70°F | 80.3°F | 4.13 | 9 | 18 | <1 | 14 h 10 min |
| August | 91°F | 69°F | 79.6°F | 4.66 | 8 | 17 | <1 | 13 h 30 min |
| September | 86°F | 62°F | 74.2°F | 3.49 | 5 | 8 | <1 | 12 h 30 min |
| October | 76°F | 50°F | 63.0°F | 3.36 | 6 | 1 | 2 | 11 h 20 min |
| November | 64°F | 40°F | 52.2°F | 4.50 | 8 | <1 | 10 | 10 h 30 min |
| December | 55°F | 35°F | 45.1°F | 5.80 | 10 | <1 | 16 | 10 h |
| Year (annual) | 74°F | 51°F | 62.3°F | 59.34 | 100 | 54 | 70 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 11°C | 0°C | 5.8°C | 130 mm |
| February | 14°C | 2°C | 7.9°C | 147 mm |
| March | 19°C | 6°C | 12.6°C | 131 mm |
| April | 23°C | 10°C | 16.7°C | 154 mm |
| May | 28°C | 15°C | 21.3°C | 144 mm |
| June | 31°C | 20°C | 25.4°C | 142 mm |
| July | 32°C | 21°C | 26.8°C | 105 mm |
| August | 33°C | 20°C | 26.4°C | 118 mm |
| September | 30°C | 17°C | 23.4°C | 89 mm |
| October | 24°C | 10°C | 17.2°C | 85 mm |
| November | 18°C | 5°C | 11.2°C | 114 mm |
| December | 13°C | 2°C | 7.3°C | 147 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00224265; 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 Houston?
Normal highs sit between 65°F and 85°F in March, April, May and October. Of those, October has the fewest days with rain (6).
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 USC00224265.
When is the last frost in Houston?
In Houston, the last spring frost (32°F) comes after March 28 in half of years and after April 15 in one year in ten; the first autumn frost comes before November 1 in half of years and before October 19 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 281 year in 10 after April 15; 9 in 10 after March 6
- First autumn frost, half of years before
- November 11 year in 10 before October 19; 9 in 10 before November 21
NOAA puts the median frost-free season at 220 days, and the season without a hard freeze (28°F) at 247 days.
A hard freeze (28°F) comes after March 12 in half of springs and before November 14 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Houston in zone 8a in ZIP code 38851, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Houston's NOAA station is in zone 8a: the coldest night of a typical year reaches 10°F (16 complete years).
Frost dates for every NOAA station in Mississippi · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00224265; 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 Houston?
In a normal year in Houston, 54 days a year reach 90°F (1 of them 100°F or more), 70 nights fall to 32°F or colder and 100 days bring measurable precipitation.
- Days at 90°F or more
- 54a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 70a normal year
- Days that stay below freezing
- 2high of 32°F or less
- Days with 0.01 inch of precipitation
- 100a normal year
The highest temperature in this station's record (since 1942) is 109°F, on August 5, 1947; the lowest is −10°F, on January 12, 1962.
The wettest calendar year on that record is 2020, with 81.51 in; the snowiest season is 1967–68, with 16.1 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00224265; records: ACIS (NOAA Regional Climate Centers), station USC00224265. Records use complete months only; a month missing more than three days is left out.
How sunny is Houston?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Houston, 4.5 kWh per square metre a day. June is the sunniest month (82%) and February the cloudiest (67%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 71% | 2.6 |
| February | 67% | 3.2 |
| March | 71% | 4.3 |
| April | 77% | 5.5 |
| May | 79% | 6.1 |
| June | 82% | 6.5 |
| July | 81% | 6.2 |
| August | 82% | 5.7 |
| September | 82% | 5.0 |
| October | 79% | 4.0 |
| November | 77% | 3.0 |
| December | 68% | 2.3 |
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 Houston need?
A normal year in Houston brings 2,913 heating degree days, 46% fewer than the median U.S. place (5,373), and 1,964 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 5,374 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 700 | 1 |
| February | 526 | 3 |
| March | 339 | 16 |
| April | 150 | 58 |
| May | 31 | 196 |
| June | 1 | 381 |
| July | 0 | 473 |
| August | 0 | 453 |
| September | 13 | 289 |
| October | 143 | 82 |
| November | 394 | 11 |
| December | 618 | 2 |
| Year (annual) | 2,913 | 1,964 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00224265. 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 Houston been warmer than normal lately?
2023 averaged 64.0°F, 1.7°F above the 1991-2020 normal of 62.3°F. 1 of the 3 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 62.3°F | at normal | 69.36 |
| 2022 | 62.3°F | at normal | 55.77 |
| 2023 | 64.0°F | +1.7°F | 53.66 |
Over 37 complete years from 1945 to 2023, the station's annual mean temperature rose at a fitted 1.6°F per century (+0.09°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00224265; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Houston's climate compare?
Houston is warmer than 20 of the other 80 places with their own NOAA record in Mississippi, and wetter than 40. Across the 7,247 U.S. stations with normals, its annual mean of 62.3°F is warmer than 81%.
In the Köppen classification computed from these normals, Houston 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 Houston share this climate record?
3 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.
- Mantee, MS245 people · 12 mi S
- Woodland, MS116 people · 8 mi SW
- Van Vleet, MS15 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 Houston's climate
What is the coldest month in Houston?
January, with a normal high of 53°F and a normal low of 32°F. The warmest is July (90°F by day, 70°F at night).
Does it snow in Houston?
Rarely: NOAA's normal is 0.8 inch a year.
What is the rainiest month in Houston?
April, with 6.08 in of precipitation in a normal year; the driest is October with 3.36 in.
What plant hardiness zone is Houston in?
The USDA's 2023 map puts Houston in zone 8a in ZIP code 38851, the nearest ZIP area. By the same method at Houston's NOAA station, the coldest night of a typical year reaches 10°F (16 years, 1991-2020): zone 8a.
How late can frost come in Houston?
In half of years the last 32°F night comes after March 28; 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
- Mississippi climateThe statewide normals and every place in the state
- Pontotoc, MS17 miles from this station, 61.6°F a year
- Calhoun City, MS19 miles from this station, 62.8°F a year
- Verona, MS24 miles from this station, 63.2°F a year
- Eupora, MS27 miles from this station, 62.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made