Washington, Oklahoma climate: Normal weather by month, frost dates and records
Washington's normal year runs from 29°F January nights to 93°F July afternoons. (NOAA 1991-2020 normals)
In metric: a yearly mean of 16.2°C, January lows of −2°C, July highs of 34°C.
- NOAA stationWashington 6 mi SSW Mesonet
- Station IDUSC00349346
- Location34.98°N 97.52°W
- Elevation1,131 ft (345 m)
- Population767
On October 23, the normal high in Washington is 71°F and the normal low 47°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Washington.
- Jan 52° 29°
- Feb 55° 33°
- Mar 64° 41°
- Apr 72° 48°
- May 79° 58°
- Jun 88° 66°
- Jul 93° 70°
- Aug 93° 69°
- Sep 86° 62°
- Oct 74° 49°
- Nov 63° 39°
- Dec 53° 30°
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 Washington each month?
July is the warmest month, with normal highs of 93°F; January the coldest, with normal lows of 29°F.
| Month | High | Low | Mean | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|
| January | 52°F | 29°F | 40.2°F | – | <1 | 21 | 10 h |
| February | 55°F | 33°F | 43.9°F | – | <1 | 16 | 10 h 50 min |
| March | 64°F | 41°F | 52.6°F | – | <1 | 6 | 11 h 50 min |
| April | 72°F | 48°F | 60.2°F | – | 1 | 2 | 13 h |
| May | 79°F | 58°F | 68.6°F | – | 2 | <1 | 14 h |
| June | 88°F | 66°F | 76.9°F | – | 16 | <1 | 14 h 30 min |
| July | 93°F | 70°F | 81.5°F | – | 24 | <1 | 14 h 20 min |
| August | 93°F | 69°F | 81.0°F | – | 23 | <1 | 13 h 30 min |
| September | 86°F | 62°F | 73.5°F | – | 11 | <1 | 12 h 30 min |
| October | 74°F | 49°F | 61.8°F | – | 1 | 1 | 11 h 20 min |
| November | 63°F | 39°F | 50.9°F | – | <1 | 8 | 10 h 20 min |
| December | 53°F | 30°F | 41.5°F | – | <1 | 19 | 9 h 50 min |
| Year (annual) | 73°F | 49°F | 61.1°F | – | 77 | 73 |
The same normals in °C and millimetres
| Month | High | Low | Mean |
|---|---|---|---|
| January | 11°C | −2°C | 4.6°C |
| February | 13°C | 0°C | 6.6°C |
| March | 18°C | 5°C | 11.4°C |
| April | 22°C | 9°C | 15.7°C |
| May | 26°C | 15°C | 20.3°C |
| June | 31°C | 19°C | 24.9°C |
| July | 34°C | 21°C | 27.5°C |
| August | 34°C | 20°C | 27.2°C |
| September | 30°C | 16°C | 23.1°C |
| October | 23°C | 10°C | 16.6°C |
| November | 17°C | 4°C | 10.5°C |
| December | 12°C | −1°C | 5.3°C |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Blanchard (13 miles away), gets 6 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00349346; 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 Washington?
Normal highs sit between 65°F and 85°F in April, May and October.
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 USC00349346.
When is the last frost in Washington?
In Washington, the last spring frost (32°F) comes after March 31 in half of years and after April 17 in one year in ten; the first autumn frost comes before November 3 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
- March 311 year in 10 after April 17; 9 in 10 after March 12
- First autumn frost, half of years before
- November 31 year in 10 before October 20; 9 in 10 before November 18
NOAA puts the median frost-free season at 217 days, and the season without a hard freeze (28°F) at 242 days.
A hard freeze (28°F) comes after March 15 in half of springs and before November 13 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Washington in zone 7b in ZIP code 73080, 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 USC00349346; 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 Washington?
In a normal year in Washington, 77 days a year reach 90°F (15 of them 100°F or more) and 73 nights fall to 32°F or colder.
- Days at 90°F or more
- 77a normal year
- Days at 100°F or more
- 15a normal year
- Nights at 32°F or colder
- 73a normal year
- Days that stay below freezing
- 6high of 32°F or less
Source: NOAA NCEI 1991-2020 annual normals, station USC00349346.
How sunny is Washington?
Over a year 80% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Washington, 4.8 kWh per square metre a day. July is the sunniest month (88%) and February the cloudiest (72%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 77% | 2.9 |
| February | 72% | 3.5 |
| March | 74% | 4.6 |
| April | 77% | 5.6 |
| May | 76% | 6.0 |
| June | 85% | 6.9 |
| July | 88% | 6.9 |
| August | 87% | 6.3 |
| September | 83% | 5.2 |
| October | 81% | 4.0 |
| November | 79% | 3.1 |
| December | 74% | 2.5 |
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 Washington need?
A normal year in Washington brings 3,326 heating degree days, 38% fewer than the median U.S. place (5,373), and 1,921 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 5,133 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 770 | 0 |
| February | 592 | 2 |
| March | 396 | 13 |
| April | 184 | 40 |
| May | 46 | 159 |
| June | 0 | 357 |
| July | 0 | 511 |
| August | 0 | 496 |
| September | 15 | 270 |
| October | 166 | 67 |
| November | 429 | 6 |
| December | 728 | 0 |
| Year (annual) | 3,326 | 1,921 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00349346. 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 Washington been warmer than normal lately?
2025 averaged 62.1°F, 1.0°F above the 1991-2020 normal of 61.1°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal |
|---|---|---|
| 2021 | 61.5°F | +0.4°F |
| 2022 | 61.5°F | +0.4°F |
| 2023 | 62.6°F | +1.5°F |
| 2024 | 63.7°F | +2.6°F |
| 2025 | 62.1°F | +1.0°F |
Source: observed years: ACIS, station USC00349346. A year counts only with all twelve months complete.
How does Washington's climate compare?
Washington is warmer than 89 of the other 133 places with their own NOAA record in Oklahoma. Across the 7,247 U.S. stations with normals, its annual mean of 61.1°F is warmer than 77%.
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers.
Which places near Washington share this climate record?
Dibble 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.
- Dibble, OK985 people · 7 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 Washington's climate
What is the coldest month in Washington?
January, with a normal high of 52°F and a normal low of 29°F. The warmest is July (93°F by day, 70°F at night).
Does it snow in Washington?
Yes. NOAA publishes no 1991-2020 snowfall normal for Washington's NOAA station; the nearest record that keeps one, Blanchard (13 miles away), records 6 inches of snow in a normal year.
What plant hardiness zone is Washington in?
The USDA's 2023 map puts Washington in zone 7b in ZIP code 73080, the nearest ZIP area.
How late can frost come in Washington?
In half of years the last 32°F night comes after March 31; 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
- Oklahoma climateThe statewide normals and every place in the state
- Purcell, OK7 miles from this station, 61.4°F a year
- Blanchard, OK12 miles from this station, 61.4°F a year
- Lindsay, OK12 miles from this station, 60.3°F a year
- Norman, OK14 miles from this station, 60.7°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made