Broken Bow weather in September: Broken Bow, Oklahoma: normal highs, lows, rain and records for September
Broken Bow in September has a normal high of 87°F and a normal low of 62°F, a daily mean of 74°F, falling from 90°F on the 1st to 83°F by the 30th. Measurable precipitation falls on 6 days in a normal September, 4.08 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 30°C and low of 17°C, 104 mm of precipitation in September.
- NOAA stationBroken Bow (1 mi N)
- Station IDUSC00341162
- Location34.05°N 94.74°W
- Elevation475 ft (145 m)
- Population4,227
- 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.
How warm is Broken Bow in September?
The normal high is 87°F and the normal low 62°F, for a daily mean of 74.4°F. September is 6.3°F cooler than August and 11.5°F warmer than October. September is the 4th warmest month of the year in Broken Bow and the 9th wettest. Across the month the normal high falls 7°F, from 90°F on September 1 to 83°F on September 30. From one year to the next September's mean temperature typically moves about 2.6°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 72°F and 77°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 20%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 90°F | 66°F | 20% | 16% |
| September 8 | 89°F | 65°F | 19% | 16% |
| September 15 | 87°F | 63°F | 19% | 15% |
| September 22 | 85°F | 60°F | 19% | 15% |
| September 30 | 83°F | 56°F | 19% | 15% |
Every day of September: normal high, low and chance of precipitation (warmest afternoon September 1, coldest night September 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| September 1 | 90°F | 66°F | 20% | 16% | 12 h 50 min |
| September 2 | 90°F | 66°F | 20% | 16% | 12 h 50 min |
| September 3 | 90°F | 66°F | 20% | 16% | 12 h 50 min |
| September 4 | 90°F | 66°F | 19% | 16% | 12 h 50 min |
| September 5 | 89°F | 66°F | 19% | 16% | 12 h 50 min |
| September 6 | 89°F | 65°F | 19% | 16% | 12 h 40 min |
| September 7 | 89°F | 65°F | 19% | 16% | 12 h 40 min |
| September 8 | 89°F | 65°F | 19% | 16% | 12 h 40 min |
| September 9 | 88°F | 65°F | 19% | 16% | 12 h 40 min |
| September 10 | 88°F | 64°F | 19% | 15% | 12 h 40 min |
| September 11 | 88°F | 64°F | 19% | 15% | 12 h 30 min |
| September 12 | 88°F | 64°F | 19% | 15% | 12 h 30 min |
| September 13 | 87°F | 63°F | 19% | 15% | 12 h 30 min |
| September 14 | 87°F | 63°F | 19% | 15% | 12 h 30 min |
| September 15 | 87°F | 63°F | 19% | 15% | 12 h 30 min |
| September 16 | 87°F | 62°F | 19% | 15% | 12 h 20 min |
| September 17 | 86°F | 62°F | 19% | 15% | 12 h 20 min |
| September 18 | 86°F | 62°F | 19% | 15% | 12 h 20 min |
| September 19 | 86°F | 61°F | 19% | 15% | 12 h 20 min |
| September 20 | 86°F | 61°F | 19% | 15% | 12 h 20 min |
| September 21 | 85°F | 60°F | 19% | 15% | 12 h 10 min |
| September 22 | 85°F | 60°F | 19% | 15% | 12 h 10 min |
| September 23 | 85°F | 59°F | 19% | 15% | 12 h 10 min |
| September 24 | 85°F | 59°F | 19% | 15% | 12 h 10 min |
| September 25 | 84°F | 59°F | 19% | 15% | 12 h 10 min |
| September 26 | 84°F | 58°F | 19% | 15% | 12 h |
| September 27 | 84°F | 58°F | 19% | 15% | 12 h |
| September 28 | 83°F | 57°F | 19% | 15% | 12 h |
| September 29 | 83°F | 57°F | 19% | 15% | 12 h |
| September 30 | 83°F | 56°F | 19% | 15% | 11 h 50 min |
- Normal high
- 87°FSeptember average
- Normal low
- 62°FSeptember average
- Precipitation
- 4.08 inmonth total
- Days with precipitation
- 60.01 inch or more
- Days at 90°F or more
- 15
- Daylight
- 12 h 50 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 29
- Days at 80°F or more
- 26
- Sunshine
- 80%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00341162; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Broken Bow in September?
On a given September day the chance of 0.01 inch or more is 19% on average, highest around September 1 (20%). In all, 4.08 in falls on 6 days of a normal September, 2 of them with an inch or more.
In a normal September in Broken Bow, 15 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00341162.
What are the records for September in Broken Bow?
The September mean against the 1991-2020 normal of 74.4°F: 2021 75.7°F (+1.3). 1 of 1 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 75.7°F | +1.3°F | 1.06 in |
Source: recent months: ACIS, station USC00341162. Records and recent months use complete months only.
How does September in Broken Bow compare across Oklahoma?
Across the 134 places PlainClimate covers in Oklahoma, September normal highs run from 82°F in Arnett to 89°F in Grandfield; Broken Bow's is 87°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Broken Bow in August93°F by day, 68°F at night
- Broken Bow in October77°F by day, 49°F at night
- Broken Bow through the yearEvery month, frost dates, records and recent years
- Oklahoma in SeptemberThe statewide normal and the warmest and coolest places
- Grandfield: Oklahoma's warmest Septembernormal high 89°F