Hanover weather in August

In August, Hanover sees average daytime highs of 83°F and overnight lows near 66°F, with 3.4 in of rain across 10.1 wet days and about 13.6 hours of daylight. It is the 2nd-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 84°F in the first days to 82°F by the end. The sky is clear or mostly clear about 31% 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 Hanover's 3rd-clearest and 12th-windiest month. For the whole year in context, see Hanover's year-round climate.

Daytime high
83°
2nd warmest
Overnight low
66°
11th coldest
Rainfall
3.4 in
10.1 wet days
Daylight
13 h 36 min
5:25 AM – 6:59 PM
Cloud cover
58%
3rd clearest
Wind
5 mph
12th windiest
Solar energy
5.31 kWh/m²
Travel score
5.9
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 84°F in the first days to 82°F by the end.

A typical August day in Hanover reaches about 83°F in the afternoon and slips back to 66°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 76°F and 90°F. Set against its neighbours, August runs about 2°F cooler than July and about 7°F warmer than September.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18568
28468
38468
48468
58467
68467
78467
88467
98467
108467
118367
128367
138367
148367
158367
168366
178366
188366
198366
208366
218366
228266
238265
248265
258265
268265
278265
288265
298265
308164
318164

How August really feels in Hanover

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.

Hanover 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
Jan39° / 26°3.18.83.99.50.0
Feb42° / 27°2.88.7410.40.4
Mar51° / 34°3.810.42.911.72.5
Apr63° / 45°3.510.30.2135.3
May72° / 54°3.611.7014.26.3
Jun81° / 63°3.411014.86.1
Jul85° / 68°3.711.1014.55.1
Aug83° / 66°3.410.1013.65.9
Sep76° / 59°4.49.2012.36.9
Oct65° / 47°3.58010.96.1
Nov53° / 37°3.07.80.59.83.2
Dec43° / 30°3.48.92.39.20.6

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% 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 49%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24852
34852
44753
54852
64852
74852
84951
94852
104951
114951
124951
135050
145050
155149
165248
175248
185347
195347
205347
215446
225446
235446
245446
255446
265446
275347
285446
295446
305347
315446

Chance of precipitation in August

Any precipitation

Hanover gets around 3.4 in of rain over 10.1 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 33% and peaks near 36% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
335
435
535
635
736
836
936
1036
1136
1236
1336
1436
1536
1635
1735
1834
1934
2033
2132
2231
2331
2430
2530
2629
2729
2829
2929
3029
3129

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 30% 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 (%)
11017263512
21018263412
31118263411
41118253411
51218253411
61218253312
71219253312
81219253312
91219253212
101319253212
111319253211
121319253111
131319263111
141320263111
151320263110
161320273010
17132027309
18142027309
19142028308
20142128298
21152128298
22152127297
23162227297
24162226297
25172226286
26182325286
27192324276
28202423276
29202422276
30212522266
31222521266

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 6 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
266calm
276calm
286calm
296calm
306calm
316calm

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 5:10 AM to 5:39 AM, and sunset from 7:18 PM to 6:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:107:18
214.15:117:17
314.15:127:16
414.05:137:14
514.05:147:13
614.05:157:12
713.95:167:11
813.95:177:10
913.85:187:09
1013.85:197:07
1113.85:207:06
1213.75:217:05
1313.75:227:04
1413.75:237:02
1513.65:247:01
1613.65:256:59
1713.55:266:58
1813.55:276:57
1913.55:276:55
2013.45:286:54
2113.45:296:52
2213.35:306:51
2313.35:316:49
2413.35:326:48
2513.25:336:46
2613.25:346:45
2713.15:356:43
2813.15:366:42
2913.05:376:40
3013.05:386:38
3113.05:396:37

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.31 kWh/m².

For context, solar energy here swings from a low near 1.83 kWh/m² to a high of 6.12 kWh/m² in June across the year — August's 5.31 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.1Bright
245.1Bright
255.1Bright
265.0Bright
275.0Bright
285.0Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in August

Is August a good time to visit Hanover?

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

5.9
Sightseeing
5th-best month of the year
6.8
Beach & pool
1st-best month of the year

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

What to pack for Hanover in August

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

In August, Hanover sees daytime highs around 83°F and nights near 66°F. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Hanover 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 Hanover peaks around June 22 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 22UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug7High
Sep6High
Oct3Moderate
Nov2Moderate
Dec2Low

Air quality in Hanover 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 Hanover is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (November, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1317 µg/m³Nov 138 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar12Moderate
Apr12Moderate
May15Moderate
Jun16Moderate
Jul17Moderate
Aug14Moderate
Sep12Good
Oct9Good
Nov8Good
Dec9Good
Location & terrain

Where is Hanover?

Hanover sits at 39.8°N, 77.0°W, 600 ft above sea level, in United States. The nearest listed city is Westminster, 16 mi away.

Topography around Hanover

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

Within 2 miles, the terrain around Hanover has only modest variations in elevation — a maximum elevation change of 259 ft around an average of 610 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,047 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,434 ft.

The land around Hanover is covered by artificial surfaces (37%), grassland (29%) and trees (21%) within 2 miles, trees (39%), cropland (30%) and grassland (27%) within 10 miles, and trees (54%) and cropland (20%) within 50 miles.

2 miles
259 ft
10 miles
1,047 ft
50 miles
2,434 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Westminster 16 mi · York 17 mi · Reisterstown 24 mi · Eldersburg 27 mi · Hunt Valley 27 mi · Owings Mills 29 mi · Cockeysville 29 mi · Carlisle 30 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 Hanover (39.8007°, -76.983°, elevation 600 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).