Photo: Renelibrary · CC BY-SA 3.0Blum reaches 100° on about 20 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 82% of U.S. towns. Since 1901–2000, the year has warmed by 0.7°, most of all in January. Warm coats and heating bills mark the months from December to January, when means dip under 50°.
A year in Blum at a glance
Each month’s typical high and low, and what it brings.
What stands out about Blum’s climate
Compared with towns across the U.S., with Blum’s place in Texas beside it.
What a year in Blum feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 240 frost-free days a year
In half of years the last 32° night comes by March 17 and the first by November 12. Frost and day counts come from NOAA’s station at Cleburne, TX, 12 miles from the town’s center, 190 ft higher.
The 2023 USDA map puts Blum’s center in zone 8b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 16°. 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 37 inches of rain a year
May is the wettest month and July the driest. Rain falls on about 72 days a year. Snow is rare: about 0.1" in a normal year at Kopperl 5 Nne, TX, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Blum
50% 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 Cleburne, TX.
Living with Blum’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
240 frost-free days in zone 8b. The last frost comes by Mar 17 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 12.
Months with highs of 62–84° and lows of 40° or more: March, April, May, October and November.
Parks & trails →Cold waves are 38% of the yearly building losses FEMA expects in Blum from natural hazards, the largest share. Normals are averages; the hazards page covers the extremes.
Natural hazards →Blum and similar climates
TownRatings has no climate map of the towns around Blum yet.
Climates most like Blum’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 |
|---|---|---|---|---|
| Blum, TX | 36° | 96° | 37" | 0.1" |
| Chico, CA | 38° | 96° | 31" | 0.0" |
| Duncan, OK | 29° | 95° | 35" | 2.8" |
| Cayce, SC | 35° | 93° | 46" | 1.2" |
| Evans, GA | 35° | 92° | 45" | 0.8" |
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 Blum averaged 0.7° warmer than the 1900s. The biggest change is in January (+1.7°).
A smaller shift than in 95% 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 Blum compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Blum’s place among Texas’.
Blum weather by month
Highs, lows and precipitation from NOAA’s grid at Blum’s center; snow, wet days and snow on the ground from Kopperl 5 Nne, TX. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 58° | 36° | 2.4" | 0.0" | 7 | 0 | 42° – 55° |
| February | 62° | 40° | 2.6" | 0.1" | 6 | 0 | 42° – 59° |
| March | 69° | 47° | 3.2" | 0.0" | 7 | 0 | 52° – 64° |
| April | 77° | 54° | 3.3" | 0.0" | 5 | 0 | 61° – 72° |
| May | 84° | 63° | 4.5" | 0.0" | 7 | 0 | 70° – 79° |
| June | 92° | 71° | 3.8" | 0.0" | 7 | 0 | 78° – 86° |
| July | 96° | 74° | 1.9" | 0.0" | 4 | 0 | 81° – 90° |
| August | 96° | 73° | 2.5" | 0.0" | 5 | 0 | 79° – 92° |
| September | 89° | 67° | 2.9" | 0.0" | 5 | 0 | 74° – 84° |
| October | 79° | 56° | 4.2" | 0.0" | 6 | 0 | 63° – 72° |
| November | 68° | 45° | 2.8" | 0.0" | 6 | 0 | 51° – 62° |
| December | 60° | 37° | 2.6" | 0.0" | 6 | 0 | 41° – 52° |
| Year | 77° | 55° | 36.7" | 0.1" | 72 | 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 Blum’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 Blum’s center.
- Snow: Kopperl 5 Nne, TX.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Cleburne, TX, 12 miles from the town’s center, 190 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 Blum’s climate
What is the weather like in Blum?
A typical July afternoon reaches 96°, a January night drops to 36°, and snow is almost unheard of. Milder January nights than 82% of U.S. towns; hotter July afternoons than 96% of U.S. towns.
How cold does it get in Blum in winter?
January nights average 36°. About 41 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 42°.
How much snow does Blum get?
About 0.1 inches in a normal winter at Kopperl 5 Nne, TX, so most winters see none.
How hot does it get in Blum?
July, with a typical high of 96° and a low of 74°. About 105 days a year reach 90° and 20 reach 100° (Cleburne, TX).
When is the first and last frost in Blum?
In half of years the last spring frost (32°) comes by March 17 and the first fall frost by November 12, about 240 frost-free days, at Cleburne, TX.
What growing zone is Blum in?
Zone 8b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 16°.
What is the best time of year to visit Blum?
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 Blum getting warmer?
Yes: 1991–2020 averaged 0.7° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 95% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Blum.
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.