Photo: Jordanmac at English Wikipedia · CC BY 2.5Summer arrives in force in Broken Arrow, hotter than in 90% of U.S. towns
The depth of winter brings overnight lows near 27°. By January nights alone, it runs milder than 68% of U.S. towns. Decade by decade the climate has edged up, 0.3° above 1901–2000. Seedlings are safe outdoors from about April 1, with the first autumn frost due around November 1.
A year in Broken Arrow at a glance
Each month’s typical high and low, and what it brings.
What stands out about Broken Arrow’s climate
Compared with towns across the U.S., with Broken Arrow’s place in Oklahoma beside it.
What a year in Broken Arrow feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 212 frost-free days a year
In half of years the last 32° night comes by April 1 and the first by November 1. Frost and day counts come from NOAA’s station at Bixby, OK, 7 miles from the city’s center point, at about the same height.
The 2023 USDA map puts Broken Arrow’s center in zone 7b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 8°. 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 9 inches of snow a winter
Snow, measured at Tulsa International Airport, falls mostly in February. Precipitation (rain plus melted snow) adds up to 43 inches a year; May is the wettest month and January the driest. Rain or snow falls on about 94 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Broken Arrow
66% 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 Bixby, OK.
Living with Broken Arrow’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
212 frost-free days in zone 7b. The last frost comes by Apr 1 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 1.
Months with highs of 62–84° and lows of 40° or more: March, April, May and October. 44 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Broken Arrow from natural hazards, river flooding is the largest share (47%); heat waves, cold waves, winter storms and ice storms together are 33%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Broken Arrow and its neighbors
Every town next door is within a degree of Broken Arrow in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Broken Arrow’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 |
|---|---|---|---|---|
| Broken Arrow, OK | 27° | 93° | 43" | 8.7" |
| East Highland Park, VA | 28° | 90° | 46" | 8.8" |
| Chester, SC | 32° | 91° | 44" | 2.9" |
| Harrisburg, NC | 31° | 90° | 45" | 3.3" |
| Mountain Home, AR | 26° | 90° | 48" | 7.8" |
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 Broken Arrow averaged 0.3° warmer than the 1900s. The biggest change is in March (+1.7°).
A smaller shift than in all but 83 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. In a city of 125,000 people, part of the change is the city itself: pavement and buildings hold heat (the urban heat island).
How Broken Arrow compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Broken Arrow’s place among Oklahoma’s.
Broken Arrow weather by month
Highs, lows and precipitation from NOAA’s grid at Broken Arrow’s center; snow, wet days and snow on the ground from Tulsa International Airport. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 48° | 27° | 1.8" | 1.9" | 6 | 2 | 33° – 47° |
| February | 54° | 31° | 1.9" | 2.4" | 7 | 2 | 36° – 51° |
| March | 62° | 40° | 3.4" | 1.9" | 9 | 1 | 45° – 61° |
| April | 72° | 49° | 4.5" | 0.0" | 9 | 0 | 54° – 66° |
| May | 79° | 58° | 5.8" | 0.0" | 11 | 0 | 66° – 76° |
| June | 87° | 67° | 4.7" | 0.0" | 9 | 0 | 73° – 83° |
| July | 93° | 71° | 3.7" | 0.0" | 7 | 0 | 77° – 89° |
| August | 92° | 70° | 3.5" | 0.0" | 7 | 0 | 74° – 87° |
| September | 84° | 62° | 4.1" | 0.0" | 8 | 0 | 69° – 80° |
| October | 73° | 50° | 3.8" | 0.0" | 8 | 0 | 55° – 69° |
| November | 61° | 39° | 3.1" | 0.8" | 7 | 0 | 43° – 57° |
| December | 51° | 31° | 2.6" | 1.7" | 7 | 2 | 29° – 46° |
| Year | 71° | 50° | 42.8" | 8.7" | 94 | 6 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 29° to 46°. June is the most reliable, staying within 10°.
Where Broken Arrow’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 Broken Arrow’s center.
- Snow: Tulsa International Airport.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Bixby, OK, 7 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 Broken Arrow’s climate
What is the weather like in Broken Arrow?
A typical July afternoon reaches 93°, a January night drops to 27°, and about 9 inches of snow falls in a normal winter. Milder January nights than 68% of U.S. towns; hotter July afternoons than 90% of U.S. towns.
How cold does it get in Broken Arrow in winter?
January nights average 27°. About 87 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 33°.
How much snow does Broken Arrow get?
About 8.7 inches in a normal winter at Tulsa International Airport, most of it in February, with snow on the ground about 6 days a year.
How hot does it get in Broken Arrow?
July, with a typical high of 93° and a low of 71°. About 65 days a year reach 90° and 9 reach 100° (Bixby, OK).
When is the first and last frost in Broken Arrow?
In half of years the last spring frost (32°) comes by April 1 and the first fall frost by November 1, about 212 frost-free days, at Bixby, OK.
What growing zone is Broken Arrow in?
Zone 7b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 8°.
What is the best time of year to visit Broken Arrow?
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 Broken Arrow getting warmer?
Yes: 1991–2020 averaged 0.3° warmer than 1901–2000 on NOAA’s grid. A smaller shift than all but 83 U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Broken Arrow.
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.