Ada, Oklahoma climate: Normal weather by month, frost dates and records
Ada's normal year runs from 27°F January nights to 94°F July afternoons, with 41.5 inches of precipitation and 4 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 16.4°C, January lows of −3°C, July highs of 34°C, 1,054 mm of precipitation a year.
- NOAA stationAda
- Station IDUSC00340017
- Location34.79°N 96.69°W
- Elevation1,015 ft (309 m)
- Population16,578
On October 23, the normal high in Ada is 73°F and the normal low 47°F, and the chance of measurable rain or snow is 24%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Ada.
- Jan 52° 27°
- Feb 57° 31°
- Mar 65° 39°
- Apr 73° 48°
- May 80° 59°
- Jun 89° 68°
- Jul 94° 72°
- Aug 94° 70°
- Sep 86° 62°
- Oct 75° 50°
- Nov 64° 39°
- Dec 54° 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 Ada each month?
July is the warmest month, with normal highs of 94°F; January the coldest, with normal lows of 27°F. The most precipitation falls in May (5.37 in), the least in February (2.05 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 | 52°F | 27°F | 39.4°F | 2.15 | 2.3 | 5 | <1 | 22 | 10 h |
| February | 57°F | 31°F | 44.1°F | 2.05 | 0.5 | 6 | <1 | 16 | 10 h 50 min |
| March | 65°F | 39°F | 52.3°F | 3.54 | 0.2 | 8 | <1 | 7 | 11 h 50 min |
| April | 73°F | 48°F | 60.6°F | 3.98 | 0.0 | 7 | <1 | 1 | 13 h |
| May | 80°F | 59°F | 69.5°F | 5.37 | 0.0 | 10 | 2 | <1 | 14 h |
| June | 89°F | 68°F | 78.2°F | 4.72 | 0.0 | 8 | 11 | <1 | 14 h 30 min |
| July | 94°F | 72°F | 82.8°F | 2.97 | 0.0 | 6 | 25 | <1 | 14 h 20 min |
| August | 94°F | 70°F | 81.9°F | 3.07 | 0.0 | 6 | 23 | <1 | 13 h 30 min |
| September | 86°F | 62°F | 73.8°F | 4.34 | 0.0 | 7 | 8 | <1 | 12 h 30 min |
| October | 75°F | 50°F | 62.5°F | 4.10 | 0.0 | 7 | 1 | 1 | 11 h 20 min |
| November | 64°F | 39°F | 51.4°F | 2.52 | 0.1 | 7 | <1 | 7 | 10 h 20 min |
| December | 54°F | 30°F | 42.1°F | 2.68 | 1.0 | 6 | <1 | 18 | 9 h 50 min |
| Year (annual) | 74°F | 50°F | 61.6°F | 41.49 | 4.1 | 83 | 70 | 72 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 11°C | −3°C | 4.1°C | 55 mm | 6 cm |
| February | 14°C | 0°C | 6.7°C | 52 mm | 1 cm |
| March | 19°C | 4°C | 11.3°C | 90 mm | 1 cm |
| April | 23°C | 9°C | 15.9°C | 101 mm | 0 cm |
| May | 27°C | 15°C | 20.8°C | 136 mm | 0 cm |
| June | 31°C | 20°C | 25.7°C | 120 mm | 0 cm |
| July | 34°C | 22°C | 28.2°C | 75 mm | 0 cm |
| August | 34°C | 21°C | 27.7°C | 78 mm | 0 cm |
| September | 30°C | 17°C | 23.2°C | 110 mm | 0 cm |
| October | 24°C | 10°C | 16.9°C | 104 mm | 0 cm |
| November | 18°C | 4°C | 10.8°C | 64 mm | 0 cm |
| December | 12°C | −1°C | 5.6°C | 68 mm | 3 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00340017; 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 Ada?
Normal highs sit between 65°F and 85°F in March, April, May and October. Of those, April 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 USC00340017.
When is the last frost in Ada?
In Ada, the last spring frost (32°F) comes after April 2 in half of years and after April 18 in one year in ten; the first autumn frost comes before November 4 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 21 year in 10 after April 18; 9 in 10 after March 14
- First autumn frost, half of years before
- November 41 year in 10 before October 20; 9 in 10 before November 21
NOAA puts the median frost-free season at 217 days, and the season without a hard freeze (28°F) at 240 days.
A hard freeze (28°F) comes after March 19 in half of springs and before November 13 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Ada in zone 7b in ZIP code 74820, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Ada's NOAA station is in zone 7b: the coldest night of a typical year reaches 9°F (20 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 USC00340017; 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 Ada?
In a normal year in Ada, 70 days a year reach 90°F (10 of them 100°F or more), 72 nights fall to 32°F or colder and 83 days bring measurable precipitation.
- Days at 90°F or more
- 70a normal year
- Days at 100°F or more
- 10a normal year
- Nights at 32°F or colder
- 72a normal year
- Days that stay below freezing
- 5high of 32°F or less
- Days with 0.01 inch of precipitation
- 83a normal year
- Days with 1 inch of snow or more
- 1a normal year
The highest temperature in this station's record (since 1907) is 116°F, on August 11, 1936; the lowest is −10°F, on January 18, 1930.
The wettest calendar year on that record is 1990, with 63.97 in; the snowiest season is 1948–49, with 24.2 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00340017; records: ACIS (NOAA Regional Climate Centers), station USC00340017. Records use complete months only; a month missing more than three days is left out.
How sunny is Ada?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Ada, 4.6 kWh per square metre a day. July is the sunniest month (87%) and February the cloudiest (70%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 74% | 2.7 |
| February | 70% | 3.3 |
| March | 72% | 4.3 |
| April | 74% | 5.4 |
| May | 74% | 5.8 |
| June | 83% | 6.7 |
| July | 87% | 6.8 |
| August | 86% | 6.1 |
| September | 82% | 5.0 |
| October | 79% | 3.9 |
| November | 77% | 3.0 |
| December | 72% | 2.4 |
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 Ada need?
A normal year in Ada brings 3,258 heating degree days, 39% fewer than the median U.S. place (5,373), and 2,038 cooling degree days, 2.2 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 5,278 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 792 | 0 |
| February | 585 | 1 |
| March | 398 | 6 |
| April | 170 | 36 |
| May | 30 | 168 |
| June | 1 | 397 |
| July | 0 | 553 |
| August | 0 | 524 |
| September | 17 | 281 |
| October | 142 | 65 |
| November | 414 | 8 |
| December | 710 | 0 |
| Year (annual) | 3,258 | 2,038 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00340017. 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 Ada's climate compare?
Ada is warmer than 103 of the other 133 places with their own NOAA record in Oklahoma, and wetter than 67. Across the 7,247 U.S. stations with normals, its annual mean of 61.6°F is warmer than 79%.
In the Köppen classification computed from these normals, Ada 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 Ada 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.
- Latta, OK1,413 people · 3 mi SW
- Byng, OK1,403 people · 6 mi N
- Konawa, OK1,246 people · 12 mi N
- Pickett, OK987 people · 5 mi W
- Francis, OK251 people · 8 mi NE
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 Ada's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Ada. This page uses Ada; the other differs by site and elevation:
| Station | From this station | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Ada 2 mi NNE Mesonet USC00340027 | 1 mi NE | 967 ft | 61.5°F | 29°F | 93°F | – | – | March 31 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Ada's climate
What is the coldest month in Ada?
January, with a normal high of 52°F and a normal low of 27°F. The warmest is July (94°F by day, 72°F at night).
Does it snow in Ada?
Yes: 4 inches in a normal year, falling on 2 days with 0.1 inch or more, the most in January (2.3 inches).
What is the rainiest month in Ada?
May, with 5.37 in of precipitation in a normal year; the driest is February with 2.05 in.
What plant hardiness zone is Ada in?
The USDA's 2023 map puts Ada in zone 7b in ZIP code 74820, the nearest ZIP area. By the same method at Ada's NOAA station, the coldest night of a typical year reaches 9°F (20 years, 1991-2020): zone 7b.
How late can frost come in Ada?
In half of years the last 32°F night comes after April 2; in one year in ten it comes after April 18. Waiting until April 18 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Ada in OctoberThis month day by day, its records and recent years
- Oklahoma climateThe statewide normals and every place in the state
- Fittstown, OK16 miles from this station, 61.0°F a year
- Byars, OK19 miles from this station, 61.7°F a year
- Sulphur, OK22 miles from this station, 61.3°F a year
- Centrahoma, OK24 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