Photo: J.B. Hill from Huntsville, TX, USA · CC BY 2.0Shiro has warmer summer afternoons than 94% of U.S. towns
On a normal January night the air cools to about 40°. In January, nights here are milder than in 89% of U.S. towns. Since 1901–2000, the year has warmed by 1.0°, most of all in March. The outdoor season runs from February to April and October to December, with highs of 63–81°.
A year in Shiro at a glance
Each month’s typical high and low, and what it brings.
What stands out about Shiro’s climate
Compared with towns across the U.S., with Shiro’s place in Texas beside it.
What a year in Shiro feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 272 frost-free days a year
In half of years the last 32° night comes by March 1 and the first by November 28. Frost and day counts come from NOAA’s station at Huntsville, TX, 22 miles from the town’s center, 150 ft higher.
The 2023 USDA map puts Shiro’s center in zone 9a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 23°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 46 inches of rain a year
May is the wettest month and July the driest. Rain falls on about 64 days a year. Snow is rare: about 0.0" in a normal year at Richards, TX, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Shiro
44% of the work is heating, so air conditioning is the bigger bill. Months averaging under 55° run from December through February.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Huntsville, TX.
Living with Shiro’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
272 frost-free days in zone 9a. The last frost comes by Mar 1 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 28.
Months with highs of 62–84° and lows of 40° or more: February, March, April, October, November and December.
Parks & trails →Cold waves are 25% of the yearly building losses FEMA expects in Shiro from natural hazards, the largest share. Normals are averages; the hazards page covers the extremes.
Natural hazards →Shiro and similar climates
TownRatings has no climate map of the towns around Shiro yet.
Climates most like Shiro’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.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Shiro, TX | 40° | 94° | 46" | 0.0" |
| Glennville, GA | 39° | 93° | 48" | 0.0" |
| Hardeeville, SC | 38° | 92° | 48" | 0.0" |
| Shreveport, LA | 37° | 94° | 52" | 0.1" |
| Macclenny, FL | 41° | 92° | 52" | 0.0" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Shiro averaged 1.0° warmer than the 1900s. The biggest change is in March (+2.2°).
A smaller shift than in 75% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Shiro compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Shiro’s place among Texas’.
Shiro weather by month
Highs, lows and precipitation from NOAA’s grid at Shiro’s center; snow, wet days and snow on the ground from Richards, TX. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 61° | 40° | 3.8" | 0.0" | 6 | 0 | 46° – 56° |
| February | 65° | 44° | 3.1" | 0.0" | 6 | 0 | 45° – 63° |
| March | 72° | 50° | 3.3" | 0.0" | 5 | 0 | 55° – 68° |
| April | 79° | 56° | 3.5" | 0.0" | 5 | 0 | 62° – 73° |
| May | 85° | 64° | 5.0" | 0.0" | 5 | 0 | 71° – 79° |
| June | 91° | 71° | 4.3" | 0.0" | 6 | 0 | 79° – 86° |
| July | 94° | 73° | 2.6" | 0.0" | 5 | 0 | 81° – 88° |
| August | 95° | 73° | 3.3" | 0.0" | 5 | 0 | 80° – 90° |
| September | 90° | 68° | 4.0" | 0.0" | 5 | 0 | 75° – 83° |
| October | 81° | 57° | 4.7" | 0.0" | 5 | 0 | 66° – 76° |
| November | 70° | 48° | 4.1" | 0.0" | 5 | 0 | 53° – 65° |
| December | 63° | 41° | 4.1" | 0.0" | 7 | 0 | 45° – 57° |
| Year | 79° | 57° | 45.7" | 0.0" | 64 | 0 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 45° to 63°. September is the most reliable, staying within 7°.
Where Shiro’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 Shiro’s center.
- Snow: Richards, TX.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Huntsville, TX, 22 miles from the town’s center, 150 ft higher; 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 Shiro’s climate
What is the weather like in Shiro?
A typical July afternoon reaches 94°, a January night drops to 40°, and snow is almost unheard of. Milder January nights than 89% of U.S. towns; hotter July afternoons than 94% of U.S. towns.
How cold does it get in Shiro in winter?
January nights average 40°. About 17 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 46°.
How much snow does Shiro get?
About 0.0 inches in a normal winter at Richards, TX, so most winters see none.
How hot does it get in Shiro?
July, with a typical high of 94° and a low of 73°. About 96 days a year reach 90° and 6 reach 100° (Huntsville, TX).
When is the first and last frost in Shiro?
In half of years the last spring frost (32°) comes by March 1 and the first fall frost by November 28, about 272 frost-free days, at Huntsville, TX.
What growing zone is Shiro in?
Zone 9a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 23°.
What is the best time of year to visit Shiro?
By one simple rule (highs of 62–84° and lows of 40° or more), February, March, April, October, November and December. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Shiro getting warmer?
Yes: 1991–2020 averaged 1.0° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 75% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Shiro.
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.