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Houston Methodist Episcopal Church, SouthHouston Methodist Episcopal Church, South · Photo: Valis55 · CC BY-SA 3.0
Climate in Houston · NOAA 1991–2020 normals

Houston’s winters are milder and less snowy than most of the U.S.

A typical July afternoon reaches 93°, a January night drops to 30°, and about 1 inches of snow falls in a normal winter.

Less snow than 77% of U.S. towns#24Least snow  of 125 in AR
Milder January nights than 73% of U.S. towns#65Mildest winters  of 127 in AR
All AR rankings →

A year in Houston at a glance

Each month’s typical high and low, and what it brings.

Jan51°30°
Feb56°34°
Mar65°41° Last frost ~Mar 30
Apr74°49°
May81°58° 2 days 90°+Wettest
Jun89°67° 12 days 90°+
Jul93°71° 23 days 90°+
Aug92°69° 22 days 90°+
Sep86°62° 10 days 90°+
Oct75°50° 1 day 90°+
Nov now63°40° First frost ~Nov 2
Dec53°33°

What stands out about Houston’s climate

Compared with towns across the U.S., with Houston’s place in Arkansas beside it.

A normal year

What a year in Houston feels like

Typical highs and lows by season and by month, from NOAA’s 30-year normals.

Winter
53° / 32°
Snow is rare
Spring
73° / 49°
Last frost around Mar 30
Summer
91° / 69°
70 days reach 90°
Fall
74° / 50°
First frost around Nov 2
Best months to be outsideMarAprMayOctHighs of 62–84° and lows of 40° or more
Frost, heat & the growing season

About 219 frost-free days a year

In half of years the last 32° night comes by March 30 and the first by November 2. Frost and day counts come from NOAA’s station at Morrilton, AR, 9 miles from the town’s center, at about the same height.

81
nights at or below 32° in a normal year
99th fewest of 127 in Arkansas
Fewer freezing nights than 69% of U.S. towns
<1
nights at or below 0°
81st fewest of 127 in Arkansas
Fewer nights at or below 0° than 69% of U.S. towns
70
days that reach 90°
50th most of 127 in Arkansas
More 90° days than 83% of U.S. towns
7
days that reach 100°
32nd most of 127 in Arkansas
More 100° days than 89% of U.S. towns
8aUSDA zone
Plant hardiness zone 8a

The 2023 USDA map puts Houston’s center in zone 8a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 11°. Plant labels use the zone; frost dates tell you when to plant.

Freezing nights by month

Average nights at or below 32°

22
JFMAMJJASOND

90° days by month

Average days at 90° or more

23
JFMAMJJASOND
Rain & snow

About 1 inches of snow a winter

Snow, measured at Perry, AR, falls mostly in March. Precipitation (rain plus melted snow) adds up to 52 inches a year; May is the wettest month and January the driest. Rain or snow falls on about 100 days a year.

52"
Rain + melted snow a year
48th wettest of 127 in Arkansas
Wetter than 90% of U.S. towns
1.4"
Snow in a normal winter
24th least snowy of 125 in Arkansas
Less snow than 77% of U.S. towns
1 days
With 1"+ of snow on the ground
29th fewest of 121 in Arkansas
Fewer days with snow on the ground than 72% of U.S. towns

Rain + melted snow by month

Inches of water

5.5"
JFMAMJJASOND

Snowfall by month

Inches of snow

1"
JFMAMJJASOND
Heating & cooling

Heating and cooling a home in Houston

63% of the work is heating. Months averaging under 55° run from November through March.

3,359 heating degree daysLess heating than 75% of U.S. towns
1,955 cooling degree daysMore cooling than 83% of U.S. towns

Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Morrilton, AR.

Living here

Living with Houston’s climate

What the numbers mean for a garden, a free afternoon and a bad-weather day.

The garden window

219 frost-free days in zone 8a. The last frost comes by Mar 30 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 2.

Get outside

Months with highs of 62–84° and lows of 40° or more: March, April, May and October.

Parks & trails →
Storms and extremes

Of the yearly building losses FEMA expects in Houston from natural hazards, river flooding is the largest share (47%); heat waves, cold waves, winter storms and ice storms together are 13%. Normals are averages; the hazards page covers the extremes.

Natural hazards →
Next door & far away

Houston and similar climates

TownRatings has no climate map of the towns around Houston yet.

Climates most like Houston’s, farther away

TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.

TownJan. lowJuly highPrecip.Snow
Houston, AR30°93°52"1.4"
Hugo, OK31°93°49"0.3"
Lincoln, AL33°91°54"0.9"
Columbus, MS33°92°56"0.4"
Bartlett, TN32°91°56"2.8"

Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.

Then and now

Warmer than it used to be

The last 30 years in Houston averaged 0.6° warmer than the 1900s. The biggest change is in February (+1.1°).

+0.6°1991–2020 vs. 1901–2000

A smaller shift than in 97% of U.S. towns.

Winter+1.0°now 43°, was 42°
Spring+0.5°now 61°, was 61°
Summer+0.5°now 80°, was 80°
Fall+0.3°now 62°, was 62°

Change by month

JanFebMarAprMayJunJulAugSepOctNovDec

The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.

Compared with other towns

How Houston compares

Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Houston’s place among Arkansas’.

Summer heat93° July high
Hotter July afternoons than 91% of U.S. towns5th hottest of 127 in Arkansas
Winter cold30° January low
Milder January nights than 73% of U.S. towns65th mildest of 127 in Arkansas
Precipitation52" a year
Wetter than 90% of U.S. towns48th wettest of 127 in Arkansas
Snow1.4" a winter
Less snow than 77% of U.S. towns24th least snowy of 125 in Arkansas
Hot days70 days at 90°+
More 90° days than 83% of U.S. towns50th most of 127 in Arkansas
Freezing nights81 a year
Fewer freezing nights than 69% of U.S. towns99th fewest of 127 in Arkansas
Growing season219 frost-free days
A longer frost-free season than 79% of U.S. towns78th longest of 127 in Arkansas
Month by month

Houston weather by month

Highs, lows and precipitation from NOAA’s grid at Houston’s center; snow, wet days and snow on the ground from Perry, AR. 1991–2020 normals.

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January51°30°3.6"0.3"9036° – 47°
February56°34°3.9"0.4"9037° – 53°
March65°41°5.2"0.6"9047° – 63°
April74°49°5.4"0.0"9055° – 67°
May81°58°5.5"0.0"9067° – 76°
June89°67°3.7"0.0"7074° – 83°
July93°71°4.0"0.0"9076° – 87°
August92°69°3.7"0.0"7075° – 86°
September86°62°3.7"0.0"7070° – 80°
October75°50°4.1"0.0"8057° – 67°
November63°40°4.9"0.1"9045° – 56°
December53°33°4.7"0.0"9032° – 50°
Year73°50°52.4"1.4"1001
Year to year

How much a month can swing

A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 32° to 50°. May is the most reliable, staying within 9°.

Coldest to warmest month in 30 yearsNormal
Sources

Where Houston’s numbers come from

Normals are 30-year averages, not a forecast. How TownRatings reads climate data →

  • Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Houston’s center.
  • Snow: Perry, AR.
  • Frost, freezing nights, 90° and 100° days, heating and cooling: Morrilton, AR, 9 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
  • Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
  • Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
  • Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).

Common questions about Houston’s climate

What is the weather like in Houston?

A typical July afternoon reaches 93°, a January night drops to 30°, and about 1 inches of snow falls in a normal winter. Milder January nights than 73% of U.S. towns; hotter July afternoons than 91% of U.S. towns.

How cold does it get in Houston in winter?

January nights average 30°. About 81 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 36°.

How much snow does Houston get?

About 1.4 inches in a normal winter at Perry, AR, most of it in March, with snow on the ground about 1 days a year.

How hot does it get in Houston?

July, with a typical high of 93° and a low of 71°. About 70 days a year reach 90° and 7 reach 100° (Morrilton, AR).

When is the first and last frost in Houston?

In half of years the last spring frost (32°) comes by March 30 and the first fall frost by November 2, about 219 frost-free days, at Morrilton, AR.

What growing zone is Houston in?

Zone 8a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 11°.

What is the best time of year to visit Houston?

By one simple rule (highs of 62–84° and lows of 40° or more), March, April, May and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.

Is Houston getting warmer?

Yes: 1991–2020 averaged 0.6° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 97% of U.S. towns.

Neighbors talk weather

Gardens, snow, and the best days of the year in Houston.

Town Square →
Ask your neighbors

Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.