Broken Bow, Oklahoma climate: Normal weather by month, frost dates and records
Broken Bow's normal year runs from 28°F January nights to 93°F July afternoons, with 55.1 inches of precipitation and 2 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 16.6°C, January lows of −2°C, July highs of 34°C, 1,399 mm of precipitation a year.
- NOAA stationBroken Bow (1 mi N)
- Station IDUSC00341162
- Location34.05°N 94.74°W
- Elevation475 ft (145 m)
- Population4,227
On October 23, the normal high in Broken Bow is 74°F and the normal low 46°F, and the chance of measurable rain or snow is 23%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Broken Bow.
- Jan 53° 28°
- Feb 58° 32°
- Mar 66° 41°
- Apr 74° 48°
- May 81° 58°
- Jun 89° 65°
- Jul 93° 69°
- Aug 93° 68°
- Sep 87° 62°
- Oct 77° 49°
- Nov 65° 39°
- Dec 56° 32°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Broken Bow each month?
July is the warmest month, with normal highs of 93°F; January the coldest, with normal lows of 28°F. The most precipitation falls in May (6.32 in), the least in August (3.24 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 53°F | 28°F | 40.8°F | 3.77 | 1.0 | 7 | <1 | 21 | 10 h 10 min |
| February | 58°F | 32°F | 45.0°F | 4.17 | 0.8 | 7 | <1 | 14 | 11 h |
| March | 66°F | 41°F | 53.4°F | 4.58 | 0.1 | 8 | <1 | 5 | 11 h 50 min |
| April | 74°F | 48°F | 61.1°F | 5.34 | 0.0 | 7 | <1 | 1 | 13 h |
| May | 81°F | 58°F | 69.2°F | 6.32 | 0.0 | 9 | 2 | <1 | 13 h 50 min |
| June | 89°F | 65°F | 76.8°F | 4.64 | 0.0 | 7 | 17 | <1 | 14 h 20 min |
| July | 93°F | 69°F | 80.9°F | 3.87 | 0.0 | 6 | 23 | <1 | 14 h 10 min |
| August | 93°F | 68°F | 80.7°F | 3.24 | 0.0 | 6 | 23 | <1 | 13 h 30 min |
| September | 87°F | 62°F | 74.4°F | 4.08 | 0.0 | 6 | 15 | <1 | 12 h 30 min |
| October | 77°F | 49°F | 62.9°F | 5.21 | 0.0 | 7 | 1 | 1 | 11 h 20 min |
| November | 65°F | 39°F | 52.0°F | 4.54 | 0.0 | 7 | <1 | 7 | 10 h 30 min |
| December | 56°F | 32°F | 43.8°F | 5.30 | 0.3 | 8 | <1 | 17 | 9 h 50 min |
| Year (annual) | 74°F | 49°F | 61.8°F | 55.06 | 2.2 | 84 | 81 | 66 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 12°C | −2°C | 4.9°C | 96 mm | 3 cm |
| February | 14°C | 0°C | 7.2°C | 106 mm | 2 cm |
| March | 19°C | 5°C | 11.9°C | 116 mm | 0 cm |
| April | 23°C | 9°C | 16.2°C | 136 mm | 0 cm |
| May | 27°C | 14°C | 20.7°C | 161 mm | 0 cm |
| June | 32°C | 18°C | 24.9°C | 118 mm | 0 cm |
| July | 34°C | 21°C | 27.2°C | 98 mm | 0 cm |
| August | 34°C | 20°C | 27.1°C | 82 mm | 0 cm |
| September | 30°C | 17°C | 23.6°C | 104 mm | 0 cm |
| October | 25°C | 9°C | 17.2°C | 132 mm | 0 cm |
| November | 18°C | 4°C | 11.1°C | 115 mm | 0 cm |
| December | 13°C | 0°C | 6.6°C | 135 mm | 1 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00341162; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Broken Bow?
Normal highs sit between 65°F and 85°F in March, April, May and October. Of those, October has the fewest days with rain (7).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00341162.
When is the last frost in Broken Bow?
In Broken Bow, the last spring frost (32°F) comes after April 1 in half of years and after April 17 in one year in ten; the first autumn frost comes before November 2 in half of years and before October 20 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 11 year in 10 after April 17; 9 in 10 after March 10
- First autumn frost, half of years before
- November 21 year in 10 before October 20; 9 in 10 before November 19
NOAA puts the median frost-free season at 220 days, and the season without a hard freeze (28°F) at 246 days.
A hard freeze (28°F) comes after March 13 in half of springs and before November 14 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Broken Bow in zone 8a in ZIP code 74737, the nearest ZIP area.
Frost dates for every NOAA station in Oklahoma · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00341162; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Broken Bow?
In a normal year in Broken Bow, 81 days a year reach 90°F (11 of them 100°F or more), 66 nights fall to 32°F or colder and 84 days bring measurable precipitation.
- Days at 90°F or more
- 81a normal year
- Days at 100°F or more
- 11a normal year
- Nights at 32°F or colder
- 66a normal year
- Days that stay below freezing
- 2high of 32°F or less
- Days with 0.01 inch of precipitation
- 84a normal year
- Days with 1 inch of snow or more
- 1a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00341162.
How sunny is Broken Bow?
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Broken Bow, 4.4 kWh per square metre a day. August is the sunniest month (82%) and February the cloudiest (64%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 71% | 2.6 |
| February | 64% | 3.0 |
| March | 68% | 4.1 |
| April | 71% | 5.1 |
| May | 72% | 5.6 |
| June | 80% | 6.4 |
| July | 82% | 6.3 |
| August | 82% | 5.8 |
| September | 80% | 4.9 |
| October | 76% | 3.8 |
| November | 72% | 2.8 |
| December | 69% | 2.3 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Broken Bow need?
A normal year in Broken Bow brings 3,079 heating degree days, 43% fewer than the median U.S. place (5,373), and 1,927 cooling degree days, 2.1 times the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 5,211 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 749 | 0 |
| February | 561 | 1 |
| March | 368 | 10 |
| April | 160 | 43 |
| May | 34 | 165 |
| June | 0 | 354 |
| July | 0 | 495 |
| August | 0 | 487 |
| September | 8 | 289 |
| October | 143 | 76 |
| November | 397 | 7 |
| December | 660 | 1 |
| Year (annual) | 3,079 | 1,927 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00341162. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
How does Broken Bow's climate compare?
Broken Bow is warmer than 108 of the other 133 places with their own NOAA record in Oklahoma, and wetter than 88. Across the 7,247 U.S. stations with normals, its annual mean of 61.8°F is warmer than 79%.
In the Köppen classification computed from these normals, Broken Bow is Cfa: temperate, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Broken Bow share this climate record?
Hochatown has no NOAA station with 1991-2020 normals of its own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Hochatown, OK268 people · 8 mi N
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Broken Bow's climate
What is the coldest month in Broken Bow?
January, with a normal high of 53°F and a normal low of 28°F. The warmest is July (93°F by day, 69°F at night).
Does it snow in Broken Bow?
Yes: 2 inches in a normal year, falling on 1 days with 0.1 inch or more, the most in January (1.0 inches).
What is the rainiest month in Broken Bow?
May, with 6.32 in of precipitation in a normal year; the driest is August with 3.24 in.
What plant hardiness zone is Broken Bow in?
The USDA's 2023 map puts Broken Bow in zone 8a in ZIP code 74737, the nearest ZIP area.
How late can frost come in Broken Bow?
In half of years the last 32°F night comes after April 1; in one year in ten it comes after April 17. Waiting until April 17 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Broken Bow in OctoberThis month day by day, its records and recent years
- Oklahoma climateThe statewide normals and every place in the state
- Idabel, OK9 miles from this station, 62.4°F a year
- De Queen, AR19 miles from this station, 63.1°F a year
- Dequeen, AR22 miles from this station, 62.0°F a year
- Battiest, OK25 miles from this station, 59.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made