Altoona weather in August

In August, Altoona sees average daytime highs of 78°F and overnight lows near 60°F, with 3.3 in of rain across 11.2 wet days and about 13.6 hours of daylight. It is the 2nd-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 78°F through the month. The sky is clear or mostly clear about 27% of the time in August, and the air most often feels humid.

Daylight stretches from about 14 h 12 min at the start of August to 13 hours by month's end. Set against the rest of the year, August is Altoona's 3rd-clearest and 12th-windiest month. For the whole year in context, see Altoona's year-round climate.

Daytime high
78°
2nd warmest
Overnight low
60°
11th coldest
Rainfall
3.3 in
11.2 wet days
Daylight
13 h 36 min
5:29 AM – 7:06 PM
Cloud cover
59%
3rd clearest
Wind
5 mph
12th windiest
Solar energy
5.23 kWh/m²
Travel score
6.5
out of 10

Altoona is city in Blair County, Pennsylvania, United States.

Density
1,767/km²
people per km²
Founded
1849

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 78°F through the month.

A typical August day in Altoona reaches about 78°F in the afternoon and slips back to 60°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 71°F and 86°F. Set against its neighbours, August runs on par with July and about 7°F warmer than September.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
17962
27962
37962
47961
57961
67961
77961
87961
97961
107961
117961
127861
137861
147861
157860
167860
177860
187860
197860
207860
217860
227860
237860
247860
257759
267759
277759
287759
297759
307758
317658

How August really feels in Altoona

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.

Altoona 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
Jan33° / 20°3.110.97.69.40.0
Feb36° / 21°2.8106.710.40.0
Mar45° / 28°3.912.1511.70.9
Apr58° / 39°4.213.41.3133.8
May67° / 49°4.614.6014.25.4
Jun75° / 57°4.412.7014.86.3
Jul79° / 62°3.912.4014.66.3
Aug78° / 60°3.311.2013.66.5
Sep71° / 53°4.110.2012.36.6
Oct59° / 42°3.59.80.510.94.7
Nov47° / 33°3.19.62.19.71.6
Dec38° / 25°3.210.25.59.20.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 23% of August, with mostly cloudy or overcast conditions the remaining 50%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25149
35050
45050
55050
65149
75149
84951
94951
104951
114951
124852
134852
144951
154951
164852
174951
184951
194951
204951
214951
224951
234951
245050
255050
265149
275050
285050
295149
305149
315248

Chance of precipitation in August

Any precipitation

Altoona gets around 3.3 in of rain over 11.2 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 37% and peaks near 40% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
140
240
340
439
539
639
739
839
939
1039
1139
1239
1339
1439
1539
1638
1738
1837
1937
2036
2135
2235
2334
2434
2534
2633
2733
2833
2932
3032
3132

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the humid band about 30% of days. Sticky, muggy-or-worse air turns up on roughly 20% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1162532242
2172532232
3182532232
4192531232
5192631222
6202631222
7202630212
8202630212
9212630212
10212730202
11212730202
12222730192
13222730182
14222731182
15222731172
16222831172
17232831162
18232831162
19232832162
20242732162
21242732161
22252631161
23262631161
24272630161
25282530161
26292529161
27302528171
28312427171
29322426171
30332425171
31342425161

Wind in August

Winds average 5 mph in August, the calmest month.

Across August, daily wind ranges from about 5 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 12 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 72 minutes over August. Sunrise moves from 5:14 AM to 5:44 AM, and sunset from 7:25 PM to 6:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.25:147:25
214.15:157:24
314.15:167:23
414.15:177:22
514.05:187:21
614.05:197:19
714.05:207:18
813.95:217:17
913.95:227:16
1013.95:237:14
1113.85:247:13
1213.85:257:12
1313.75:267:11
1413.75:277:09
1513.75:287:08
1613.65:297:06
1713.65:307:05
1813.55:317:03
1913.55:327:02
2013.55:337:01
2113.45:346:59
2213.45:356:58
2313.35:366:56
2413.35:376:54
2513.25:386:53
2613.25:396:51
2713.25:406:50
2813.15:416:48
2913.15:426:46
3013.05:436:45
3113.05:446:43

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.23 kWh/m².

For context, solar energy here swings from a low near 1.59 kWh/m² to a high of 5.92 kWh/m² in June across the year — August's 5.23 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.1Bright
205.1Bright
215.1Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
264.9Bright
274.9Bright
284.9Bright
294.8Bright
304.8Bright
314.8Bright
Planning a trip in August

Is August a good time to visit Altoona?

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
6.1
Beach & pool
2nd-best month of the year

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

What to pack for Altoona in August

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

In August, Altoona sees daytime highs around 78°F and nights near 60°F. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in Altoona in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Altoona peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJun 23UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug7Very high
Sep6High
Oct3Moderate
Nov2Moderate
Dec2Low

Air quality in Altoona 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 Altoona is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1316 µg/m³Nov 147 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar11Good
Apr12Good
May14Moderate
Jun16Moderate
Jul16Moderate
Aug14Moderate
Sep11Good
Oct8Good
Nov7Good
Dec8Good
Location & terrain

Where is Altoona?

Altoona sits at 40.5°N, 78.4°W, 1,165 ft above sea level, in United States. The nearest listed city is Johnstown, 30 mi away.

Topography around Altoona

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

Within 2 miles, the terrain around Altoona has significant variations in elevation — a maximum elevation change of 942 ft around an average of 1,302 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,762 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,703 ft.

The land around Altoona is covered by trees (54%) and artificial surfaces (35%) within 2 miles, trees (80%) within 10 miles, and trees (80%) within 50 miles.

2 miles
942 ft
10 miles
1,762 ft
50 miles
2,703 ft
treesgrasslandcroplandartificial surfaces
August weather nearby: Johnstown 30 mi · State College 34 mi · Chambersburg 56 mi · Cumberland 63 mi · Carlisle 67 mi · Murrysville 69 mi · Hagerstown 70 mi · Plum 71 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 Altoona (40.5187°, -78.3947°, elevation 1,165 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).