Owasso weather in August

In August, Owasso sees average daytime highs of 91°F and overnight lows near 72°F, with 2.9 in of rain across 6.9 wet days and about 13.4 hours of daylight. It is the 2nd-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 91°F through the month. The sky is clear or mostly clear about 52% of the time in August, and the air most often feels muggy.

Daylight stretches from about 13 h 54 min at the start of August to 12 h 48 min by month's end. Set against the rest of the year, August is Owasso's 2nd-clearest and 12th-windiest month. For the whole year in context, see Owasso's year-round climate.

Daytime high
91°
2nd warmest
Overnight low
72°
11th coldest
Rainfall
2.9 in
6.9 wet days
Daylight
13 h 24 min
5:46 AM – 7:09 PM
Cloud cover
42%
2nd clearest
Wind
6 mph
12th windiest
Solar energy
6.12 kWh/m²
Travel score
4.0
out of 10

Owasso is city in the Rogers and Tulsa counties, Oklahoma, United States.

Density
818/km²
people per km²
Founded
1904

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 91°F through the month.

A typical August day in Owasso reaches about 91°F in the afternoon and slips back to 72°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 82°F and 99°F. Set against its neighbours, August runs on par with July and about 8°F warmer than September.

60°70°80°90°100°151015202531
Avg high (°F)Avg low (°F)
19274
29274
39274
49274
59273
69273
79273
89273
99173
109173
119173
129173
139173
149172
159172
169172
179172
189172
199172
209172
219172
229172
239171
249171
259071
269071
279071
289071
299071
308970
318970

How August really feels in Owasso

Once humidity and wind are folded in, August averages 31 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
31
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Owasso weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan47° / 30°2.05.91.39.81.8
Feb52° / 33°2.16.51.310.63.1
Mar62° / 42°3.79.40.811.75.3
Apr70° / 51°5.010.5012.96.5
May78° / 61°6.012.4013.96.3
Jun87° / 70°4.610.2014.44.8
Jul92° / 74°3.28.2014.23.7
Aug91° / 72°2.96.9013.44.0
Sep83° / 64°4.17.6012.26.3
Oct72° / 52°3.98.3011.17.3
Nov60° / 42°2.670.410.15.2
Dec50° / 33°2.46.41.39.62.4

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 28%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17228
27228
37228
47228
57228
67228
77228
87228
97228
107228
117228
127228
137228
147228
157228
167228
177228
187327
197327
207327
217327
227327
237327
247327
257327
267327
277327
287327
297228
307228
317129

Chance of precipitation in August

Any precipitation

Owasso gets around 2.9 in of rain over 6.9 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 23% and peaks near 24% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
124
224
324
424
524
624
724
824
924
1024
1124
1224
1323
1423
1523
1623
1723
1822
1922
2022
2121
2221
2321
2421
2522
2622
2722
2822
2923
3023
3123

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the muggy band about 39% of days. Sticky, muggy-or-worse air turns up on roughly 74% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1041537422
2041537422
3041538422
4041538412
5041538411
6141538411
7141538411
8151538401
9151538401
10161537391
11161537391
12171637381
13171637381
14181637371
15181637361
16281738351
17281738341
18281739341
19291739330
20291740320
21281741310
22281841300
23281842300
24281942290
25381942280
26372042270
27372142270
28372142260
29482242250
30482241240
31582340230

Wind in August

Winds average 6 mph in August, the calmest month.

Across August, daily wind ranges from about 6 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 54 min at the start of August to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over August. Sunrise moves from 5:34 AM to 5:58 AM, and sunset from 7:25 PM to 6:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:347:25
213.85:347:24
313.85:357:24
413.85:367:23
513.75:377:22
613.75:387:21
713.75:387:20
813.75:397:18
913.65:407:17
1013.65:417:16
1113.65:427:15
1213.55:427:14
1313.55:437:13
1413.55:447:12
1513.45:457:10
1613.45:467:09
1713.45:477:08
1813.35:477:07
1913.35:487:05
2013.35:497:04
2113.25:507:03
2213.25:517:01
2313.15:527:00
2413.15:526:59
2513.15:536:57
2613.05:546:56
2713.05:556:55
2813.05:566:53
2912.95:566:52
3012.95:576:50
3112.85:586:49

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.12 kWh/m².

For context, solar energy here swings from a low near 2.27 kWh/m² to a high of 6.73 kWh/m² in July across the year — August's 6.12 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.4Intense
46.4Intense
56.4Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.2Intense
116.2Intense
126.2Intense
136.2Intense
146.1Intense
156.1Intense
166.1Intense
176.1Intense
186.0Intense
196.0Intense
206.0Intense
216.0Bright
226.0Bright
235.9Bright
245.9Bright
255.9Bright
265.8Bright
275.8Bright
285.8Bright
295.7Bright
305.7Bright
315.6Bright
Planning a trip in August

Is August a good time to visit Owasso?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.0
Sightseeing
8th-best month of the year
6.9
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Owasso for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Owasso in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Owasso sees daytime highs around 91°F and nights near 72°F. Pack light clothes and sun protection. About 7 days see rain.

light clothessun protection

UV index in Owasso in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Owasso peaks around June 23 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 23UV 10Dec 22UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr8Very high
May8Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep7Very high
Oct5High
Nov4Moderate
Dec2Moderate

Air quality in Owasso in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Owasso is worst in July — around 17 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (November, 5 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1716 µg/m³Nov 165 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar13Moderate
Apr13Moderate
May12Good
Jun14Moderate
Jul17Moderate
Aug14Moderate
Sep10Good
Oct6Good
Nov5Good
Dec6Good
Location & terrain

Where is Owasso?

Owasso sits at 36.3°N, 95.9°W, 610 ft above sea level, in United States. The nearest listed city is Tulsa, 11 mi away.

Topography around Owasso

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Owasso.

Within 2 miles, the terrain around Owasso has only modest variations in elevation — a maximum elevation change of 184 ft around an average of 620 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 436 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 794 ft.

The land around Owasso is covered by trees (36%), grassland (31%) and artificial surfaces (28%) within 2 miles, grassland (42%) and trees (39%) within 10 miles, and grassland (50%) and trees (41%) within 50 miles.

2 miles
184 ft
10 miles
436 ft
50 miles
794 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Tulsa 11 mi · Claremore 14 mi · Broken Arrow 16 mi · Sand Springs 17 mi · Jenks 18 mi · Bixby 23 mi · Sapulpa 24 mi · Bartlesville 34 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Owasso (36.2695°, -95.8547°, elevation 610 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).