Photo: Barboufatte · CC BY-SA 3.0Cool reaches 100° on about 26 days a year, more than 97% of U.S. towns
January nights here settle around 32°. The wettest month is May; the driest is January. It is a dry place: less rain and snow fall here than on 81% of U.S. towns. Radiators earn their keep from December to February, the months that average under 50°.
A year in Cool at a glance
Each month’s typical high and low, and what it brings.
What stands out about Cool’s climate
Compared with towns across the U.S., with Cool’s place in Texas beside it.
What a year in Cool feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 231 frost-free days a year
In half of years the last 32° night comes by March 24 and the first by November 10. Frost and day counts come from NOAA’s station at Mineral Wells Airport, 3 miles from the town’s center, at about the same height.
The 2023 USDA map puts Cool’s center in zone 8a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 15°. 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 33 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 Cool
49% of the work is heating, so air conditioning is the bigger bill. 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 Mineral Wells Airport.
Living with Cool’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
231 frost-free days in zone 8a. The last frost comes by Mar 24 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, October and November.
Parks & trails →Of the yearly building losses FEMA expects in Cool from natural hazards, river flooding is the largest share (29%); heat waves, cold waves, winter storms and ice storms together are 13%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Cool and similar climates
TownRatings has no climate map of the towns around Cool yet.
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 Cool averaged 0.8° warmer than the 1900s. The biggest change is in January (+2.0°).
A smaller shift than in 91% 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 Cool compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Cool’s place among Texas’.
Cool weather by month
Highs, lows and precipitation from NOAA’s grid at Cool’s center. 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 57° | 32° | 1.8" | 40° – 52° |
| February | 62° | 37° | 2.3" | 40° – 57° |
| March | 69° | 45° | 2.9" | 52° – 62° |
| April | 77° | 52° | 2.9" | 60° – 70° |
| May | 84° | 62° | 4.3" | 69° – 79° |
| June | 92° | 69° | 3.7" | 77° – 86° |
| July | 96° | 72° | 2.1" | 80° – 90° |
| August | 96° | 72° | 2.5" | 78° – 91° |
| September | 89° | 64° | 2.9" | 72° – 83° |
| October | 79° | 53° | 3.5" | 61° – 71° |
| November | 67° | 42° | 2.5" | 49° – 60° |
| December | 59° | 35° | 2.0" | 39° – 51° |
| Year | 77° | 53° | 33.2" |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 40° to 57°. June is the most reliable, staying within 9°.
Where Cool’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 Cool’s center.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Mineral Wells Airport, 3 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 Cool’s climate
What is the weather like in Cool?
A typical July afternoon reaches 96°, a January night drops to 32°. Milder January nights than 76% of U.S. towns; hotter July afternoons than 97% of U.S. towns.
How cold does it get in Cool in winter?
January nights average 32°. About 48 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 40°.
How hot does it get in Cool?
July, with a typical high of 96° and a low of 72°. About 111 days a year reach 90° and 26 reach 100° (Mineral Wells Airport).
When is the first and last frost in Cool?
In half of years the last spring frost (32°) comes by March 24 and the first fall frost by November 10, about 231 frost-free days, at Mineral Wells Airport.
What growing zone is Cool in?
Zone 8a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 15°.
What is the best time of year to visit Cool?
By one simple rule (highs of 62–84° and lows of 40° or more), March, April, October and November. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Cool getting warmer?
Yes: 1991–2020 averaged 0.8° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 91% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Cool.
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.