Anderson weather in August

In August, Anderson sees average daytime highs of 82°F and overnight lows near 64°F, with 2.9 in of rain across 9.4 wet days and about 13.6 hours of daylight. It is the 2nd-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 82°F through the month. The sky is clear or mostly clear about 37% of the time in August, and the air most often feels muggy.

Daylight stretches from about 14 h 06 min at the start of August to 13 hours by month's end. Set against the rest of the year, August is Anderson's 2nd-clearest and 12th-windiest month. For the whole year in context, see Anderson's year-round climate.

Daytime high
82°
2nd warmest
Overnight low
64°
11th coldest
Rainfall
2.9 in
9.4 wet days
Daylight
13 h 36 min
5:59 AM – 7:35 PM
Cloud cover
54%
2nd clearest
Wind
6 mph
12th windiest
Solar energy
5.64 kWh/m²
Travel score
6.5
out of 10

Anderson is city and county seat of Madison County, Indiana, United States.

Density
499/km²
people per km²

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 82°F through the month.

A typical August day in Anderson reaches about 82°F in the afternoon and slips back to 64°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 74°F and 89°F. Set against its neighbours, August runs on par with July and about 5°F warmer than September.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18266
28265
38265
48265
58265
68265
78265
88265
98265
108265
118265
128265
138265
148264
158264
168264
178264
188264
198264
208264
218264
228264
238264
248264
258264
268264
278264
288163
298163
308163
318163

How August really feels in Anderson

Once humidity and wind are folded in, August averages 0 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
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Anderson weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan35° / 21°3.29.74.89.50.0
Feb39° / 24°2.68.84.410.40.1
Mar50° / 33°3.810.72.411.72.2
Apr62° / 44°4.612.20.6135.0
May72° / 54°4.613.7014.26.0
Jun80° / 63°4.112.1014.86.1
Jul83° / 66°3.411.7014.65.7
Aug82° / 64°2.99.4013.66.5
Sep76° / 57°2.87.7012.37.2
Oct64° / 46°3.28.80.110.95.8
Nov50° / 35°3.49.11.19.82.4
Dec40° / 26°3.110.23.69.20.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% 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 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25644
35743
45743
55743
65743
75644
85644
95545
105545
115545
125545
135545
145644
155644
165644
175644
185743
195743
205743
215743
225644
235644
245644
255644
265743
275743
285743
295743
305842
315941

Chance of precipitation in August

Any precipitation

Anderson gets around 2.9 in of rain over 9.4 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 30% and peaks near 34% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
134
234
334
433
533
632
732
832
932
1031
1131
1231
1331
1431
1530
1630
1730
1830
1929
2029
2129
2229
2329
2429
2528
2628
2728
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 26% of days. Sticky, muggy-or-worse air turns up on roughly 40% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
18232426180
29232425181
39232425171
410232425171
510232425171
611232425161
711232425161
812232425161
912232425161
1013232425161
1113232325151
1213232325151
1313232325141
1413232326141
1513232326131
1613232426131
1713242427121
1813242427121
1913232427121
2013232528111
2113232528111
2213222528110
2313222628110
2414212628110
2515212628100
2616202628100
2717202627100
2818202627100
292019262690
302119262690
312219252580

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 7 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
307calm
317calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 06 min at the start of August to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over August. Sunrise moves from 5:44 AM to 6:14 AM, and sunset from 7:53 PM to 7:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:447:53
214.15:457:52
314.15:467:51
414.05:477:50
514.05:487:49
614.05:497:48
713.95:507:46
813.95:517:45
913.95:527:44
1013.85:537:43
1113.85:547:42
1213.85:557:40
1313.75:567:39
1413.75:577:38
1513.65:587:36
1613.65:597:35
1713.66:007:33
1813.56:017:32
1913.56:027:31
2013.46:037:29
2113.46:047:28
2213.46:057:26
2313.36:067:25
2413.36:077:23
2513.26:087:21
2613.26:097:20
2713.16:107:18
2813.16:117:17
2913.16:127:15
3013.06:137:14
3113.06:147:12

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.64 kWh/m².

For context, solar energy here swings from a low near 1.7 kWh/m² to a high of 6.28 kWh/m² in July across the year — August's 5.64 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.0Intense
26.0Bright
36.0Bright
46.0Bright
55.9Bright
65.9Bright
75.9Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.6Bright
175.6Bright
185.6Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.4Bright
245.4Bright
255.4Bright
265.3Bright
275.3Bright
285.3Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in August

Is August a good time to visit Anderson?

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

6.5
Sightseeing
2nd-best month of the year
6.9
Beach & pool
1st-best month of the year

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

What to pack for Anderson in August

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

In August, Anderson sees daytime highs around 82°F and nights near 64°F. Pack light clothes. Worth having: rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

UV index in Anderson in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Anderson peaks around June 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 20UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov3Moderate
Dec2Low

Air quality in Anderson 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 Anderson is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1317 µg/m³Oct 228 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar12Good
Apr12Good
May14Moderate
Jun16Moderate
Jul17Moderate
Aug14Moderate
Sep11Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Anderson?

Anderson sits at 40.1°N, 85.7°W, 879 ft above sea level, in United States. The nearest listed city is Muncie, 17 mi away.

Topography around Anderson

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

Within 2 miles, the terrain around Anderson has only modest variations in elevation — a maximum elevation change of 121 ft around an average of 879 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 397 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 804 ft.

The land around Anderson is covered by trees (45%), artificial surfaces (28%) and grassland (22%) within 2 miles, cropland (60%) and trees (22%) within 10 miles, and cropland (71%) within 50 miles.

2 miles
121 ft
10 miles
397 ft
50 miles
804 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Muncie 17 mi · Noblesville 18 mi · New Castle 21 mi · Fishers 21 mi · Greenfield 22 mi · Westfield 24 mi · Carmel 25 mi · Lawrence 26 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 Anderson (40.1053°, -85.6803°, elevation 879 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).