Joplin weather in August

In August, Joplin sees average daytime highs of 89°F and overnight lows near 69°F, with 2.9 in of rain across 8.3 wet days and about 13.4 hours of daylight. It is the 2nd-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 89°F through the month. The sky is clear or mostly clear about 48% 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 54 min by month's end. Set against the rest of the year, August is Joplin's 3rd-clearest and 12th-windiest month. For the whole year in context, see Joplin's year-round climate.

Daytime high
89°
2nd warmest
Overnight low
69°
11th coldest
Rainfall
2.9 in
8.3 wet days
Daylight
13 h 24 min
5:39 AM – 7:05 PM
Cloud cover
46%
3rd clearest
Wind
6 mph
12th windiest
Solar energy
5.95 kWh/m²
Travel score
4.5
out of 10

Joplin is city in southern Jasper County and northern Newton County, Missouri, USA.

Density
542/km²
people per km²
Founded
1873

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 89°F through the month.

A typical August day in Joplin reaches about 89°F in the afternoon and slips back to 69°F overnight — a 20°F spread between the day's warmth and the night's chill. On most days the high lands between 80°F and 98°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)
19071
29071
39070
49070
59070
69070
78970
88970
98970
108970
118969
128969
138969
148969
158969
168969
178969
188969
198969
208969
218969
228969
238968
248968
258868
268868
278868
288868
298867
308767
318767

How August really feels in Joplin

Once humidity and wind are folded in, August averages 28 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
28
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.

Joplin weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan45° / 28°2.37.129.71.0
Feb50° / 31°2.271.610.62.3
Mar59° / 40°3.910.30.911.74.6
Apr68° / 48°5.111.50.112.96.1
May76° / 58°6.2130.1146.3
Jun85° / 67°4.310.8014.55.3
Jul90° / 71°3.29.2014.34.2
Aug89° / 69°2.98.3013.44.5
Sep81° / 61°3.97.9012.36.7
Oct70° / 50°3.98.40.1117.0
Nov57° / 39°2.97.60.6104.5
Dec47° / 30°2.57.11.79.51.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 33%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16634
26634
36634
46634
56634
66634
76634
86733
96733
106733
116733
126733
136733
146733
156634
166634
176733
186733
196733
206733
216733
226832
236733
246832
256832
266832
276832
286931
296832
306832
316931

Chance of precipitation in August

Any precipitation

Joplin gets around 2.9 in of rain over 8.3 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 27% and peaks near 29% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
129
229
329
429
528
628
728
827
927
1027
1127
1227
1328
1427
1527
1627
1727
1827
1926
2026
2127
2227
2327
2427
2527
2627
2727
2827
2927
3027
3127

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 41% of days. Sticky, muggy-or-worse air turns up on roughly 67% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1281639341
2281640331
3281641321
4281541321
5381542311
6371542311
7381642301
8481642301
9481642291
10491642291
11491641281
125101641271
135101641271
145101740261
155111740251
165111840251
176111841241
186111941231
196111941221
206112042220
216112042210
225102142210
235102143200
245102243200
255102343190
265102343180
275102443180
285102443170
296112542170
306112541160
317122640150

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 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over August. Sunrise moves from 5:26 AM to 5:52 AM, and sunset from 7:22 PM to 6:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:267:22
213.95:277:21
313.95:287:20
413.85:297:19
513.85:307:18
613.85:317:17
713.75:317:16
813.75:327:15
913.75:337:14
1013.65:347:12
1113.65:357:11
1213.65:367:10
1313.55:377:09
1413.55:377:08
1513.55:387:06
1613.45:397:05
1713.45:407:04
1813.45:417:03
1913.35:427:01
2013.35:437:00
2113.35:436:59
2213.25:446:57
2313.25:456:56
2413.15:466:54
2513.15:476:53
2613.15:486:52
2713.05:496:50
2813.05:496:49
2912.95:506:47
3012.95:516:46
3112.95:526:44

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.95 kWh/m².

For context, solar energy here swings from a low near 2.18 kWh/m² to a high of 6.6 kWh/m² in July across the year — August's 5.95 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.2Intense
46.2Intense
56.2Intense
66.2Intense
76.1Intense
86.1Intense
96.1Intense
106.0Intense
116.0Intense
126.0Intense
136.0Bright
146.0Bright
156.0Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.7Bright
265.7Bright
275.7Bright
285.6Bright
295.6Bright
305.5Bright
315.5Bright
Planning a trip in August

Is August a good time to visit Joplin?

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

4.5
Sightseeing
7th-best month of the year
7.0
Beach & pool
2nd-best month of the year

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

What to pack for Joplin in August

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

In August, Joplin sees daytime highs around 89°F and nights near 69°F. Pack light clothes. Worth having: rain gear and sun protection. About 8 days see rain.

light clothesrain gearsun protection

UV index in Joplin 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 Joplin peaks around June 21 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 21UV 10Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5High
Apr8Very high
May8Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep7Very high
Oct5Moderate
Nov4Moderate
Dec2Moderate

Air quality in Joplin 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 Joplin is worst in July — around 17 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (November, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1516 µg/m³Nov 196 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar12Good
Apr10Good
May12Moderate
Jun15Moderate
Jul17Moderate
Aug14Moderate
Sep10Good
Oct6Good
Nov6Good
Dec6Good
Location & terrain

Where is Joplin?

Joplin sits at 37.1°N, 94.5°W, 1,004 ft above sea level, in United States. The nearest listed city is Pittsburg, 25 mi away.

Topography around Joplin

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

Within 2 miles, the terrain around Joplin has only modest variations in elevation — a maximum elevation change of 177 ft around an average of 1,017 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 423 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,017 ft.

The land around Joplin is covered by artificial surfaces (40%), trees (38%) and grassland (21%) within 2 miles, trees (48%) and grassland (36%) within 10 miles, and grassland (43%), trees (31%) and cropland (23%) within 50 miles.

2 miles
177 ft
10 miles
423 ft
50 miles
1,017 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Pittsburg 25 mi · Bella Vista 43 mi · Bentonville 52 mi · Rogers 57 mi · Republic 57 mi · Siloam Springs 62 mi · Springdale 66 mi · Nixa 67 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 Joplin (37.0842°, -94.5133°, elevation 1,004 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).