Photo: Renelibrary · CC BY-SA 4.0Itasca reaches 100° on about 18 days a year, more than 95% of U.S. towns
Deep winter brings January lows near 36°. In January, nights here are milder than in 83% of U.S. towns. Decade by decade the climate has edged up, 0.4° above 1901–2000. Keep the boiler serviced for the months from December to January, which average under 50°.
A year in Itasca at a glance
Each month’s typical high and low, and what it brings.
What stands out about Itasca’s climate
Compared with towns across the U.S., with Itasca’s place in Texas beside it.
What a year in Itasca feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 235 frost-free days a year
In half of years the last 32° night comes by March 21 and the first by November 10. Frost and day counts come from NOAA’s station at Hillsboro, TX, 10 miles from the town’s center, 140 ft lower.
The 2023 USDA map puts Itasca’s center in zone 8b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 17°. 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 39 inches of rain a year
May is the wettest month and July the driest. Rain falls on about 77 days a year. Snow is rare: about 0.9" in a normal year at Itasca 5ssw, TX, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Itasca
46% 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 Hillsboro, TX.
Living with Itasca’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
235 frost-free days in zone 8b. The last frost comes by Mar 21 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 10.
Months with highs of 62–84° and lows of 40° or more: March, April, May, October and November. 0.0 miles of trails are waiting.
Parks & trails →Cold waves are 41% of the yearly building losses FEMA expects in Itasca from natural hazards, the largest share. Normals are averages; the hazards page covers the extremes.
Natural hazards →Itasca and similar climates
TownRatings has no climate map of the towns around Itasca yet.
Climates most like Itasca’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 |
|---|---|---|---|---|
| Itasca, TX | 36° | 95° | 39" | 0.9" |
| Clearlake, CA | 35° | 93° | 40" | 0.4" |
| Cayce, SC | 35° | 93° | 46" | 1.2" |
| Evans, GA | 35° | 92° | 45" | 0.8" |
| Duncan, OK | 29° | 95° | 35" | 2.8" |
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 Itasca averaged 0.4° warmer than the 1900s. The biggest change is in January (+1.5°).
A smaller shift than in all but 165 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 Itasca compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Itasca’s place among Texas’.
Itasca weather by month
Highs, lows and precipitation from NOAA’s grid at Itasca’s center; snow, wet days and snow on the ground from Itasca 5ssw, TX. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 58° | 36° | 2.6" | 0.1" | 7 | 0 | 42° – 54° |
| February | 62° | 40° | 2.7" | 0.7" | 7 | 0 | 42° – 59° |
| March | 69° | 48° | 3.5" | 0.0" | 8 | 0 | 52° – 64° |
| April | 76° | 54° | 3.7" | 0.1" | 7 | 0 | 60° – 72° |
| May | 83° | 64° | 4.6" | 0.0" | 9 | 0 | 70° – 79° |
| June | 91° | 71° | 3.9" | 0.0" | 6 | 0 | 78° – 86° |
| July | 95° | 74° | 2.0" | 0.0" | 4 | 0 | 80° – 90° |
| August | 96° | 74° | 2.6" | 0.0" | 4 | 0 | 79° – 92° |
| September | 89° | 67° | 3.1" | 0.0" | 5 | 0 | 74° – 84° |
| October | 79° | 56° | 4.5" | 0.0" | 7 | 0 | 63° – 72° |
| November | 67° | 46° | 2.8" | 0.0" | 7 | 0 | 51° – 62° |
| December | 59° | 38° | 2.8" | 0.0" | 7 | 0 | 41° – 52° |
| Year | 77° | 55° | 38.6" | 0.9" | 77 | 0 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 42° to 59°. June is the most reliable, staying within 8°.
Where Itasca’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 Itasca’s center.
- Snow: Itasca 5ssw, TX.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Hillsboro, TX, 10 miles from the town’s center, 140 ft lower; 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 Itasca’s climate
What is the weather like in Itasca?
A typical July afternoon reaches 95°, a January night drops to 36°, and snow is almost unheard of. Milder January nights than 83% of U.S. towns; hotter July afternoons than 95% of U.S. towns.
How cold does it get in Itasca in winter?
January nights average 36°. About 37 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 42°.
How much snow does Itasca get?
About 0.9 inches in a normal winter at Itasca 5ssw, TX, so most winters see none.
How hot does it get in Itasca?
July, with a typical high of 95° and a low of 74°. About 105 days a year reach 90° and 18 reach 100° (Hillsboro, TX).
When is the first and last frost in Itasca?
In half of years the last spring frost (32°) comes by March 21 and the first fall frost by November 10, about 235 frost-free days, at Hillsboro, TX.
What growing zone is Itasca in?
Zone 8b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 17°.
What is the best time of year to visit Itasca?
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 Itasca getting warmer?
Yes: 1991–2020 averaged 0.4° warmer than 1901–2000 on NOAA’s grid. A smaller shift than all but 165 U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Itasca.
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.