Wintersmith Park Historic District · Photo: Brad Holt · CC BY-SA 2.0Ada reaches 100° on about 10 days a year, more than 91% of U.S. towns
A typical July afternoon reaches 94°, a January night drops to 29°, and about 4 inches of snow falls in a normal winter.
A year in Ada at a glance
Each month’s typical high and low, and what it brings.
What stands out about Ada’s climate
Compared with towns across the U.S., with Ada’s place in Oklahoma beside it.
What a year in Ada feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 217 frost-free days a year
In half of years the last 32° night comes by April 2 and the first by November 4. Frost and day counts come from NOAA’s station at Ada, OK, 1.6 miles from the town’s center, at about the same height.
The 2023 USDA map puts Ada’s center in zone 7b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 9°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 4 inches of snow a winter
Snow, measured at Ada, OK, falls mostly in January. Precipitation (rain plus melted snow) adds up to 42 inches a year; May is the wettest month and January the driest. Rain or snow falls on about 83 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Ada
62% of the work is heating. Months averaging under 55° run from November through March.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Ada, OK.
Living with Ada’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
217 frost-free days in zone 7b. The last frost comes by Apr 2 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 4.
Months with highs of 62–84° and lows of 40° or more: March, April, May and October. 5.7 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Ada from natural hazards, tornadoes are the largest share (30%); heat waves, cold waves, winter storms and ice storms together are 20%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Ada and similar climates
TownRatings has no climate map of the towns around Ada yet.
Climates most like Ada’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Ada, OK | 29° | 94° | 42" | 4.1" |
| Lancaster, SC | 31° | 91° | 43" | 2.6" |
| Coffeyville, KS | 25° | 92° | 43" | 8.3" |
| Monroe, NC | 31° | 91° | 43" | 2.1" |
| Clarksville, AR | 29° | 93° | 50" | 2.5" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
About as warm as it used to be
The last 30 years in Ada averaged 0.3° warmer than the 1900s. The biggest change is in March (+1.7°).
A smaller shift than in all but 53 U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Ada compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Ada’s place among Oklahoma’s.
Ada weather by month
Highs, lows and precipitation from NOAA’s grid at Ada’s center; snow, wet days and snow on the ground from Ada, OK. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 52° | 29° | 1.9" | 2.3" | 5 | 36° – 49° |
| February | 57° | 33° | 2.2" | 0.5" | 6 | 38° – 53° |
| March | 65° | 41° | 3.3" | 0.2" | 8 | 47° – 61° |
| April | 73° | 49° | 4.0" | 0.0" | 7 | 55° – 68° |
| May | 80° | 58° | 5.6" | 0.0" | 10 | 67° – 75° |
| June | 88° | 67° | 4.9" | 0.0" | 8 | 74° – 84° |
| July | 94° | 71° | 3.5" | 0.0" | 6 | 77° – 90° |
| August | 94° | 70° | 2.9" | 0.0" | 6 | 75° – 90° |
| September | 85° | 62° | 4.6" | 0.0" | 7 | 69° – 81° |
| October | 75° | 51° | 3.9" | 0.0" | 7 | 57° – 69° |
| November | 63° | 40° | 2.7" | 0.1" | 7 | 45° – 59° |
| December | 53° | 31° | 2.7" | 1.0" | 6 | 33° – 47° |
| Year | 73° | 50° | 42.2" | 4.1" | 83 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 38° to 53°. May is the most reliable, staying within 8°.
Where Ada’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Ada’s center.
- Snow: Ada, OK (NOAA station in town).
- Frost, freezing nights, 90° and 100° days, heating and cooling: Ada, OK, 1.6 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Ada’s climate
What is the weather like in Ada?
A typical July afternoon reaches 94°, a January night drops to 29°, and about 4 inches of snow falls in a normal winter. Milder January nights than 71% of U.S. towns; hotter July afternoons than 92% of U.S. towns.
How cold does it get in Ada in winter?
January nights average 29°. About 72 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 36°.
How much snow does Ada get?
About 4.1 inches in a normal winter at Ada, OK, most of it in January.
How hot does it get in Ada?
July, with a typical high of 94° and a low of 71°. About 70 days a year reach 90° and 10 reach 100° (Ada, OK).
When is the first and last frost in Ada?
In half of years the last spring frost (32°) comes by April 2 and the first fall frost by November 4, about 217 frost-free days, at Ada, OK.
What growing zone is Ada in?
Zone 7b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 9°.
What is the best time of year to visit Ada?
By one simple rule (highs of 62–84° and lows of 40° or more), March, April, May and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Ada getting warmer?
Yes: 1991–2020 averaged 0.3° warmer than 1901–2000 on NOAA’s grid. A smaller shift than all but 53 U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Ada.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.