Photo: Paltron · CC BY-SA 4.0Heavener reaches 100° on about 11 days a year, more than 92% of U.S. towns
A typical July afternoon reaches 93°, a January night drops to 29°.
A year in Heavener at a glance
Each month’s typical high and low, and what it brings.
What stands out about Heavener’s climate
Compared with towns across the U.S., with Heavener’s place in Oklahoma beside it.
What a year in Heavener feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 210 frost-free days a year
In half of years the last 32° night comes by April 6 and the first by November 2. Frost and day counts come from NOAA’s station at Wister 3s, OK, 6 miles from the town’s center, at about the same height.
The 2023 USDA map puts Heavener’s center in zone 7b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 9°. 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 51 inches of rain a year
May is the wettest month and February the driest.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Heavener
63% of the work is heating. Months averaging under 55° run from November through March.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Wister 3s, OK.
Living with Heavener’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
210 frost-free days in zone 7b. The last frost comes by Apr 6 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 2.
Months with highs of 62–84° and lows of 40° or more: March, April, May and October. 0.0 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Heavener from natural hazards, river flooding is the largest share (50%); heat waves, cold waves, winter storms and ice storms together are 17%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Heavener and similar climates
TownRatings has no climate map of the towns around Heavener 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 Heavener averaged 0.6° warmer than the 1900s. The biggest change is in February (+1.4°).
A smaller shift than in 97% 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 Heavener compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Heavener’s place among Oklahoma’s.
Heavener weather by month
Highs, lows and precipitation from NOAA’s grid at Heavener’s center. 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 52° | 29° | 3.2" | 36° – 48° |
| February | 57° | 33° | 2.9" | 38° – 54° |
| March | 64° | 40° | 4.5" | 46° – 61° |
| April | 73° | 49° | 5.1" | 56° – 67° |
| May | 80° | 58° | 6.0" | 66° – 74° |
| June | 88° | 66° | 4.5" | 73° – 82° |
| July | 93° | 70° | 4.0" | 76° – 88° |
| August | 92° | 68° | 3.4" | 74° – 86° |
| September | 85° | 61° | 4.6" | 69° – 81° |
| October | 75° | 49° | 4.6" | 57° – 68° |
| November | 63° | 40° | 4.2" | 45° – 57° |
| December | 54° | 32° | 3.9" | 32° – 49° |
| Year | 73° | 49° | 50.7" |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 32° to 49°. May is the most reliable, staying within 8°.
Where Heavener’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 Heavener’s center.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Wister 3s, OK, 6 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 Heavener’s climate
What is the weather like in Heavener?
A typical July afternoon reaches 93°, a January night drops to 29°. Milder January nights than 71% of U.S. towns; hotter July afternoons than 90% of U.S. towns.
How cold does it get in Heavener in winter?
January nights average 29°. About 76 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 36°.
How hot does it get in Heavener?
July, with a typical high of 93° and a low of 70°. About 71 days a year reach 90° and 11 reach 100° (Wister 3s, OK).
When is the first and last frost in Heavener?
In half of years the last spring frost (32°) comes by April 6 and the first fall frost by November 2, about 210 frost-free days, at Wister 3s, OK.
What growing zone is Heavener in?
Zone 7b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 9°.
What is the best time of year to visit Heavener?
By one simple rule (highs of 62–84° and lows of 40° or more), March, April, May and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Heavener getting warmer?
Yes: 1991–2020 averaged 0.6° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 97% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Heavener.
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.