Bartlesville, Oklahoma climate: Normal weather by month, frost dates and records
Bartlesville's normal year runs from 22°F January nights to 93°F July afternoons, with 40.3 inches of precipitation and 8 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 14.6°C, January lows of −5°C, July highs of 34°C, 1,022 mm of precipitation a year.
- NOAA stationBartlesville F P Field
- Station IDUSW00003959
- Location36.77°N 96.03°W
- Elevation715 ft (218 m)
- Population38,355
On October 23, the normal high in Bartlesville is 70°F and the normal low 43°F, and the chance of measurable rain or snow is 25%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Bartlesville.
- Jan 47° 22°
- Feb 52° 26°
- Mar 62° 35°
- Apr 71° 45°
- May 79° 55°
- Jun 88° 65°
- Jul 93° 69°
- Aug 92° 66°
- Sep 84° 58°
- Oct 73° 45°
- Nov 60° 34°
- Dec 49° 25°
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 Bartlesville each month?
July is the warmest month, with normal highs of 93°F; January the coldest, with normal lows of 22°F. The most precipitation falls in May (5.68 in), the least in January (1.53 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 | 47°F | 22°F | 34.7°F | 1.53 | 1.9 | 6 | <1 | 26 | 9 h 50 min |
| February | 52°F | 26°F | 39.4°F | 1.88 | 1.6 | 6 | <1 | 20 | 10 h 50 min |
| March | 62°F | 35°F | 48.7°F | 3.00 | 1.5 | 9 | <1 | 11 | 11 h 50 min |
| April | 71°F | 45°F | 58.1°F | 4.29 | 0.0 | 9 | 1 | 3 | 13 h 10 min |
| May | 79°F | 55°F | 67.1°F | 5.68 | 0.0 | 11 | 3 | <1 | 14 h 10 min |
| June | 88°F | 65°F | 76.1°F | 5.29 | 0.0 | 9 | 13 | <1 | 14 h 40 min |
| July | 93°F | 69°F | 80.6°F | 3.65 | 0.0 | 8 | 23 | <1 | 14 h 30 min |
| August | 92°F | 66°F | 79.3°F | 3.39 | 0.0 | 8 | 21 | <1 | 13 h 40 min |
| September | 84°F | 58°F | 70.9°F | 3.43 | 0.0 | 8 | 9 | <1 | 12 h 30 min |
| October | 73°F | 45°F | 59.0°F | 3.63 | 0.0 | 8 | 1 | 2 | 11 h 20 min |
| November | 60°F | 34°F | 47.2°F | 2.36 | 0.2 | 7 | <1 | 13 | 10 h 10 min |
| December | 49°F | 25°F | 37.3°F | 2.12 | 3.0 | 6 | <1 | 23 | 9 h 40 min |
| Year (annual) | 71°F | 46°F | 58.2°F | 40.25 | 8.2 | 95 | 71 | 97 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 8°C | −5°C | 1.5°C | 39 mm | 5 cm |
| February | 11°C | −3°C | 4.1°C | 48 mm | 4 cm |
| March | 17°C | 2°C | 9.3°C | 76 mm | 4 cm |
| April | 22°C | 7°C | 14.5°C | 109 mm | 0 cm |
| May | 26°C | 13°C | 19.5°C | 144 mm | 0 cm |
| June | 31°C | 18°C | 24.5°C | 134 mm | 0 cm |
| July | 34°C | 20°C | 27.0°C | 93 mm | 0 cm |
| August | 33°C | 19°C | 26.3°C | 86 mm | 0 cm |
| September | 29°C | 14°C | 21.6°C | 87 mm | 0 cm |
| October | 23°C | 7°C | 15.0°C | 92 mm | 0 cm |
| November | 16°C | 1°C | 8.4°C | 60 mm | 1 cm |
| December | 10°C | −4°C | 2.9°C | 54 mm | 8 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00003959; 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 Bartlesville?
Normal highs sit between 65°F and 85°F in April, May, September and October. Of those, September has the fewest days with rain (8).
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 USW00003959.
When is the last frost in Bartlesville?
In Bartlesville, the last spring frost (32°F) comes after April 12 in half of years and after April 28 in one year in ten; the first autumn frost comes before October 21 in half of years and before October 5 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 121 year in 10 after April 28; 9 in 10 after March 28
- First autumn frost, half of years before
- October 211 year in 10 before October 5; 9 in 10 before November 3
NOAA puts the median frost-free season at 192 days, and the season without a hard freeze (28°F) at 213 days.
A hard freeze (28°F) comes after March 31 in half of springs and before October 31 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Bartlesville in zone 7a in ZIP code 74006. By the map's own method, the average of each year's coldest night over 1991-2020, Bartlesville's NOAA station is in zone 7a: the coldest night of a typical year reaches 0°F (29 complete years).
Frost dates for every NOAA station in Oklahoma · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00003959; 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 Bartlesville?
In a normal year in Bartlesville, 71 days a year reach 90°F (11 of them 100°F or more), 97 nights fall to 32°F or colder and 95 days bring measurable precipitation.
- Days at 90°F or more
- 71a normal year
- Days at 100°F or more
- 11a normal year
- Nights at 32°F or colder
- 97a normal year
- Days that stay below freezing
- 9high of 32°F or less
- Days with 0.01 inch of precipitation
- 95a normal year
- Days with 1 inch of snow or more
- 2a normal year
The highest temperature in this station's record (since 1920) is 115°F, on July 14, 1954; the lowest is −28°F, on February 10, 2011.
The wettest calendar year on that record is 1986, with 58.70 in; the snowiest season is 1978–79, with 26.9 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USW00003959; records: ACIS (NOAA Regional Climate Centers), station USW00003959. Records use complete months only; a month missing more than three days is left out.
How sunny is Bartlesville?
Over a year 79% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Bartlesville, 4.6 kWh per square metre a day. July is the sunniest month (86%) and February the cloudiest (72%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 75% | 2.6 |
| February | 72% | 3.3 |
| March | 73% | 4.3 |
| April | 74% | 5.3 |
| May | 75% | 5.8 |
| June | 84% | 6.8 |
| July | 86% | 6.7 |
| August | 85% | 6.0 |
| September | 83% | 5.0 |
| October | 79% | 3.8 |
| November | 78% | 2.8 |
| December | 73% | 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 Bartlesville need?
A normal year in Bartlesville brings 4,137 heating degree days, 23% fewer than the median U.S. place (5,373), and 1,687 cooling degree days, 86% 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 4,609 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 939 | 0 |
| February | 717 | 1 |
| March | 512 | 7 |
| April | 240 | 32 |
| May | 68 | 132 |
| June | 2 | 334 |
| July | 0 | 484 |
| August | 0 | 443 |
| September | 32 | 211 |
| October | 227 | 41 |
| November | 537 | 3 |
| December | 860 | 0 |
| Year (annual) | 4,137 | 1,687 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00003959. 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.
Has Bartlesville been warmer than normal lately?
2025 averaged 59.2°F, 1.0°F above the 1991-2020 normal of 58.2°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 58.9°F | +0.7°F | 39.09 | – |
| 2022 | 58.6°F | +0.4°F | 28.28 | – |
| 2023 | 59.6°F | +1.4°F | 26.66 | – |
| 2024 | 61.1°F | +2.9°F | 28.75 | – |
| 2025 | 59.2°F | +1.0°F | 47.25 | – |
Over 77 complete years from 1929 to 2025, the station's annual mean temperature rose at a fitted 1.0°F per century (+0.06°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USW00003959; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Bartlesville's climate compare?
Bartlesville is warmer than 14 of the other 133 places with their own NOAA record in Oklahoma, and wetter than 60. Across the 7,247 U.S. stations with normals, its annual mean of 58.2°F is warmer than 69%.
In the Köppen classification computed from these normals, Bartlesville 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 Bartlesville share this climate record?
2 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.
- Dewey, OK3,439 people · 5 mi E
- Caney, KS1,726 people · 18 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.
What do Bartlesville's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Bartlesville. This page uses Bartlesville F P Field; the other differs by site and elevation:
| Station | From this station | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Bartlesville 3 USC00340546 | 1 mi SE | 715 ft | 58.0°F | 22°F | 93°F | 39.7 | – | April 11 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Bartlesville's climate
What is the coldest month in Bartlesville?
January, with a normal high of 47°F and a normal low of 22°F. The warmest is July (93°F by day, 69°F at night).
Does it snow in Bartlesville?
Yes: 8 inches in a normal year, falling on 3 days with 0.1 inch or more, the most in December (3.0 inches).
What is the rainiest month in Bartlesville?
May, with 5.68 in of precipitation in a normal year; the driest is January with 1.53 in.
What plant hardiness zone is Bartlesville in?
The USDA's 2023 map puts Bartlesville in zone 7a in ZIP code 74006. By the same method at Bartlesville's NOAA station, the coldest night of a typical year reaches 0°F (29 years, 1991-2020): zone 7a.
How late can frost come in Bartlesville?
In half of years the last 32°F night comes after April 12; in one year in ten it comes after April 28. Waiting until April 28 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Bartlesville in OctoberThis month day by day, its records and recent years
- Oklahoma climateThe statewide normals and every place in the state
- Barnsdall, OK16 miles from this station, 59.9°F a year
- Pawhuska, OK19 miles from this station, 59.9°F a year
- Nowata, OK22 miles from this station, 60.1°F a year
- Sedan, KS27 miles from this station, 57.3°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made