Photo: Renelibrary · CC BY-SA 3.0Sherman’s winters are milder than most of the U.S.; July afternoons average 94°
A typical July afternoon reaches 94°, a January night drops to 34°.
A year in Sherman at a glance
Each month’s typical high and low, and what it brings.
What stands out about Sherman’s climate
Compared with towns across the U.S., with Sherman’s place in Texas beside it.
What a year in Sherman feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 250 frost-free days a year
In half of years the last 32° night comes by March 14 and the first by November 19. Frost and day counts come from NOAA’s station at Sherman, TX, 5 miles from the city’s center point, at about the same height.
The 2023 USDA map puts Sherman’s center in zone 8a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 14°. 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 42 inches of rain a year
May is the wettest month and January the driest.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Sherman
55% of the work is heating. Months averaging under 55° run from November 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 Sherman, TX.
Living with Sherman’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
250 frost-free days in zone 8a. The last frost comes by Mar 14 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 19.
Months with highs of 62–84° and lows of 40° or more: March, April, May, October and November. 14 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Sherman from natural hazards, river flooding is the largest share (46%); heat waves, cold waves, winter storms and ice storms together are 22%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Sherman and its neighbors
Every town next door is within a degree of Sherman in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in Sherman averaged 0.5° warmer than the 1900s. The biggest change is in January (+1.8°).
A smaller shift than in 98% 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 Sherman compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Sherman’s place among Texas’.
Sherman weather by month
Highs, lows and precipitation from NOAA’s grid at Sherman’s center. 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 54° | 34° | 2.3" | 39° – 52° |
| February | 58° | 37° | 2.7" | 39° – 56° |
| March | 66° | 45° | 3.8" | 50° – 63° |
| April | 73° | 52° | 3.7" | 58° – 68° |
| May | 81° | 61° | 5.6" | 68° – 76° |
| June | 89° | 69° | 4.2" | 76° – 84° |
| July | 94° | 73° | 2.8" | 79° – 89° |
| August | 94° | 73° | 2.8" | 78° – 91° |
| September | 87° | 65° | 3.4" | 72° – 82° |
| October | 76° | 54° | 4.2" | 60° – 71° |
| November | 64° | 44° | 3.1" | 48° – 61° |
| December | 55° | 35° | 3.3" | 36° – 50° |
| Year | 74° | 54° | 42.0" |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 39° to 56°. June is the most reliable, staying within 8°.
Where Sherman’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 Sherman’s center.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Sherman, TX, 5 miles from the city’s center point, 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 Sherman’s climate
What is the weather like in Sherman?
A typical July afternoon reaches 94°, a January night drops to 34°. Milder January nights than 78% of U.S. towns; hotter July afternoons than 92% of U.S. towns.
How cold does it get in Sherman in winter?
January nights average 34°. About 43 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 39°.
How hot does it get in Sherman?
July, with a typical high of 94° and a low of 73°. About 73 days a year reach 90° and 6 reach 100° (Sherman, TX).
When is the first and last frost in Sherman?
In half of years the last spring frost (32°) comes by March 14 and the first fall frost by November 19, about 250 frost-free days, at Sherman, TX.
What growing zone is Sherman in?
Zone 8a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 14°.
What is the best time of year to visit Sherman?
By one simple rule (highs of 62–84° and lows of 40° or more), March, April, May, October and November. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Sherman getting warmer?
Yes: 1991–2020 averaged 0.5° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 98% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Sherman.
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.