Bristow, Oklahoma climate: Normal weather by month, frost dates and records
Bristow's normal year runs from 26°F January nights to 92°F July afternoons, with 42.1 inches of precipitation and 7 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 15.3°C, January lows of −3°C, July highs of 33°C, 1,069 mm of precipitation a year.
- NOAA stationBristow
- Station IDUSC00341144
- Location35.83°N 96.39°W
- Elevation830 ft (253 m)
- Population4,282
On October 23, the normal high in Bristow is 71°F and the normal low 45°F, and the chance of measurable rain or snow is 20%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Bristow.
- Jan 49° 26°
- Feb 55° 30°
- Mar 64° 39°
- Apr 72° 47°
- May 78° 57°
- Jun 87° 65°
- Jul 92° 69°
- Aug 91° 67°
- Sep 84° 59°
- Oct 73° 47°
- Nov 62° 37°
- Dec 51° 29°
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 Bristow each month?
July is the warmest month, with normal highs of 92°F; January the coldest, with normal lows of 26°F. The most precipitation falls in May (5.80 in), the least in January (1.37 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 49°F | 26°F | 37.7°F | 1.37 | 2.1 | 5 | <1 | 22 | 10 h |
| February | 55°F | 30°F | 42.2°F | 1.91 | 0.8 | 5 | <1 | 16 | 10 h 50 min |
| March | 64°F | 39°F | 51.3°F | 3.10 | 1.8 | 7 | <1 | 8 | 11 h 50 min |
| April | 72°F | 47°F | 59.5°F | 4.15 | 0.0 | 7 | 1 | 2 | 13 h |
| May | 78°F | 57°F | 67.4°F | 5.80 | 0.0 | 9 | 2 | <1 | 14 h |
| June | 87°F | 65°F | 75.8°F | 5.01 | 0.0 | 8 | 11 | <1 | 14 h 30 min |
| July | 92°F | 69°F | 80.5°F | 3.54 | 0.0 | 6 | 24 | <1 | 14 h 20 min |
| August | 91°F | 67°F | 79.0°F | 3.21 | 0.0 | 6 | 22 | <1 | 13 h 30 min |
| September | 84°F | 59°F | 71.5°F | 4.12 | 0.0 | 7 | 8 | <1 | 12 h 30 min |
| October | 73°F | 47°F | 60.2°F | 4.53 | 0.0 | 6 | 1 | 2 | 11 h 20 min |
| November | 62°F | 37°F | 49.4°F | 3.15 | 0.5 | 5 | <1 | 10 | 10 h 20 min |
| December | 51°F | 29°F | 39.9°F | 2.18 | 1.5 | 6 | <1 | 19 | 9 h 50 min |
| Year (annual) | 72°F | 48°F | 59.5°F | 42.07 | 6.7 | 77 | 69 | 78 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 10°C | −3°C | 3.2°C | 35 mm | 5 cm |
| February | 13°C | −1°C | 5.7°C | 49 mm | 2 cm |
| March | 18°C | 4°C | 10.7°C | 79 mm | 5 cm |
| April | 22°C | 8°C | 15.3°C | 105 mm | 0 cm |
| May | 26°C | 14°C | 19.7°C | 147 mm | 0 cm |
| June | 30°C | 18°C | 24.3°C | 127 mm | 0 cm |
| July | 33°C | 21°C | 26.9°C | 90 mm | 0 cm |
| August | 33°C | 19°C | 26.1°C | 82 mm | 0 cm |
| September | 29°C | 15°C | 21.9°C | 105 mm | 0 cm |
| October | 23°C | 8°C | 15.7°C | 115 mm | 0 cm |
| November | 16°C | 3°C | 9.7°C | 80 mm | 1 cm |
| December | 11°C | −2°C | 4.4°C | 55 mm | 4 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00341144; 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 Bristow?
Normal highs sit between 65°F and 85°F in April, May, September and October. Of those, October has the fewest days with rain (6).
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 USC00341144.
When is the last frost in Bristow?
In Bristow, the last spring frost (32°F) comes after April 9 in half of years and after April 27 in one year in ten; the first autumn frost comes before October 25 in half of years and before October 10 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 91 year in 10 after April 27; 9 in 10 after March 24
- First autumn frost, half of years before
- October 251 year in 10 before October 10; 9 in 10 before November 8
NOAA puts the median frost-free season at 196 days, and the season without a hard freeze (28°F) at 218 days.
A hard freeze (28°F) comes after March 28 in half of springs and before November 2 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Bristow in zone 7b in ZIP code 74010, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Bristow's NOAA station is in zone 7a: the coldest night of a typical year reaches 4°F (20 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Oklahoma · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00341144; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. 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 Bristow?
In a normal year in Bristow, 69 days a year reach 90°F (13 of them 100°F or more), 78 nights fall to 32°F or colder and 77 days bring measurable precipitation.
- Days at 90°F or more
- 69a normal year
- Days at 100°F or more
- 13a normal year
- Nights at 32°F or colder
- 78a normal year
- Days that stay below freezing
- 6high of 32°F or less
- Days with 0.01 inch of precipitation
- 77a normal year
- Days with 1 inch of snow or more
- 2a normal year
The highest temperature in this station's record (since 1915) is 115°F, on August 10, 1936; the lowest is −20°F, on February 10, 2011.
The wettest calendar year on that record is 1992, with 51.69 in; the snowiest season is 1943–44, with 22.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00341144; records: ACIS (NOAA Regional Climate Centers), station USC00341144. Records use complete months only; a month missing more than three days is left out.
How sunny is Bristow?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Bristow, 4.6 kWh per square metre a day. July is the sunniest month (87%) and February the cloudiest (71%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 75% | 2.7 |
| February | 71% | 3.3 |
| March | 72% | 4.3 |
| April | 74% | 5.3 |
| May | 74% | 5.7 |
| June | 84% | 6.7 |
| July | 87% | 6.7 |
| August | 85% | 6.0 |
| September | 82% | 5.0 |
| October | 78% | 3.8 |
| November | 77% | 2.9 |
| December | 72% | 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 Bristow need?
A normal year in Bristow brings 3,665 heating degree days, 32% fewer than the median U.S. place (5,373), and 1,701 cooling degree days, 87% more than 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 4,784 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 846 | 0 |
| February | 639 | 1 |
| March | 436 | 11 |
| April | 204 | 41 |
| May | 58 | 134 |
| June | 3 | 325 |
| July | 0 | 480 |
| August | 1 | 433 |
| September | 29 | 223 |
| October | 195 | 46 |
| November | 475 | 5 |
| December | 780 | 0 |
| Year (annual) | 3,665 | 1,701 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00341144. 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 Bristow's climate compare?
Bristow is warmer than 40 of the other 133 places with their own NOAA record in Oklahoma, and wetter than 69. Across the 7,247 U.S. stations with normals, its annual mean of 59.5°F is warmer than 73%.
In the Köppen classification computed from these normals, Bristow 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 Bristow share this climate record?
5 places have no NOAA station with 1991-2020 normals of their 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.
- Depew, OK415 people · 7 mi W
- Welty, OK158 people · 14 mi S
- Slick, OK148 people · 8 mi SE
- Milfay, OK71 people · 11 mi SW
- Shamrock, OK39 people · 12 mi NW
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 Bristow's climate
What is the coldest month in Bristow?
January, with a normal high of 49°F and a normal low of 26°F. The warmest is July (92°F by day, 69°F at night).
Does it snow in Bristow?
Yes: 7 inches in a normal year, falling on 3 days with 0.1 inch or more, the most in January (2.1 inches).
What is the rainiest month in Bristow?
May, with 5.80 in of precipitation in a normal year; the driest is January with 1.37 in.
What plant hardiness zone is Bristow in?
The USDA's 2023 map puts Bristow in zone 7b in ZIP code 74010, the nearest ZIP area. By the same method at Bristow's NOAA station, the coldest night of a typical year reaches 4°F (20 years, 1991-2020): zone 7a.
How late can frost come in Bristow?
In half of years the last 32°F night comes after April 9; in one year in ten it comes after April 27. Waiting until April 27 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Oklahoma climateThe statewide normals and every place in the state
- Cushing, OK24 miles from this station, 60.4°F a year
- Mannford, OK24 miles from this station, 60.8°F a year
- Okmulgee, OK25 miles from this station, 60.0°F a year
- Tulsa R.L. Jones Jr. Airport, OK27 miles from this station, 61.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made