Beaver Dam weather in August

In August, Beaver Dam sees average daytime highs of 78°F and overnight lows near 60°F, with 3.6 in of rain across 10.6 wet days and about 13.8 hours of daylight. It is the 2nd-warmest and 4th-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 34% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 14 h 24 min at the start of August to 13 h 06 min by month's end. Set against the rest of the year, August is Beaver Dam's 3rd-clearest and 12th-windiest month. For the whole year in context, see Beaver Dam's year-round climate.

Daytime high
78°
2nd warmest
Overnight low
60°
11th coldest
Rainfall
3.6 in
10.6 wet days
Daylight
13 h 48 min
5:05 AM – 6:54 PM
Cloud cover
55%
3rd clearest
Wind
7 mph
12th windiest
Solar energy
5.29 kWh/m²
Travel score
6.7
out of 10

Beaver Dam is city in Dodge County, Wisconsin, United States.

Density
782/km²
people per km²
Founded
1852

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 Beaver Dam 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 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)
18062
28062
38062
47962
57962
67962
77961
87961
97961
107961
117961
127861
137861
147861
157860
167860
177860
187860
197860
207860
217860
227860
237860
247860
257860
267759
277759
287759
297759
307758
317758

How August really feels in Beaver Dam

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.

Beaver Dam weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan26° / 12°1.67.86.49.10.0
Feb30° / 15°1.56.65.710.20.0
Mar42° / 26°2.39411.60.7
Apr55° / 37°3.7122.113.23.4
May67° / 48°3.711.40.114.55.9
Jun77° / 58°4.011.3015.26.5
Jul80° / 62°3.310.1014.96.5
Aug78° / 60°3.610.6013.86.7
Sep71° / 53°2.99.1012.36.8
Oct58° / 41°2.99.10.410.84.4
Nov44° / 30°2.182.29.50.8
Dec31° / 19°1.87.45.58.80.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% 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 45%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25743
35743
45644
55644
65644
75545
85446
95446
105446
115347
125248
135248
145248
155347
165347
175347
185347
195347
205347
215347
225347
235446
245446
255545
265545
275644
285644
295842
305842
315842

Chance of precipitation in August

Any precipitation

Beaver Dam gets around 3.6 in of rain over 10.6 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 35% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
235
335
435
535
634
734
834
934
1034
1134
1234
1333
1433
1533
1633
1734
1834
1934
2034
2134
2234
2334
2433
2533
2632
2732
2831
2930
3030
3129

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the comfortable band about 26% of days. Sticky, muggy-or-worse air turns up on roughly 25% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1192627208
2192628208
3192628207
4202628207
5202627207
6202627197
7212627197
8212627197
9212627196
10222626196
11222726196
12222726195
13232726195
14232726195
15232726204
16232726204
17232726214
18232726223
19232625223
20232625233
21232625233
22232625242
23242624242
24242624242
25252524232
26262524232
27272524222
28282423222
29302423212
30312423202
31332422192

Wind in August

Winds average 7 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
17calm
27calm
37calm
47calm
57calm
66calm
76calm
86calm
96calm
106calm
116calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 24 min at the start of August to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over August. Sunrise moves from 4:49 AM to 5:23 AM, and sunset from 7:14 PM to 6:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.44:497:14
214.44:507:13
314.34:517:12
414.34:527:10
514.34:537:09
614.24:547:08
714.24:557:07
814.14:567:05
914.14:577:04
1014.14:597:02
1114.05:007:01
1214.05:017:00
1313.95:026:58
1413.95:036:57
1513.85:046:55
1613.85:056:54
1713.85:076:52
1813.75:086:50
1913.75:096:49
2013.65:106:47
2113.65:116:46
2213.55:126:44
2313.55:136:42
2413.45:156:40
2513.45:166:39
2613.35:176:37
2713.35:186:35
2813.25:196:34
2913.25:206:32
3013.15:216:30
3113.15:236:28

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.29 kWh/m².

For context, solar energy here swings from a low near 1.57 kWh/m² to a high of 6.28 kWh/m² in June across the year — August's 5.29 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.7Bright
45.7Bright
55.7Bright
65.6Bright
75.6Bright
85.5Bright
95.5Bright
105.5Bright
115.4Bright
125.4Bright
135.4Bright
145.3Bright
155.3Bright
165.3Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
304.9Bright
314.9Bright
Planning a trip in August

Is August a good time to visit Beaver Dam?

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

6.7
Sightseeing
2nd-best month of the year
6.4
Beach & pool
2nd-best month of the year

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

What to pack for Beaver Dam in August

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

In August, Beaver Dam 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 Beaver Dam 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 Beaver Dam peaks around June 18 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 18UV 8Dec 21UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul8Very high
Aug7Very high
Sep6High
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Beaver Dam 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 Beaver Dam is worst in July — around 15 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (November, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodJul 1415 µg/m³Nov 118 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Moderate
Mar13Moderate
Apr12Good
May13Moderate
Jun14Moderate
Jul15Moderate
Aug14Moderate
Sep11Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Beaver Dam?

Beaver Dam sits at 43.5°N, 88.8°W, 879 ft above sea level, in United States. The nearest listed city is Watertown, 19 mi away.

Topography around Beaver Dam

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

Within 2 miles, the terrain around Beaver Dam has only modest variations in elevation — a maximum elevation change of 135 ft around an average of 879 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 249 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,050 ft.

The land around Beaver Dam is covered by water (23%), grassland (21%) and artificial surfaces (20%) within 2 miles, cropland (63%) within 10 miles, and cropland (44%) and trees (30%) within 50 miles.

2 miles
135 ft
10 miles
249 ft
50 miles
1,050 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
August weather nearby: Watertown 19 mi · Sun Prairie 27 mi · Oconomowoc 29 mi · Fond du Lac 30 mi · West Bend 33 mi · Madison 39 mi · Germantown 40 mi · Menomonee Falls 41 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 Beaver Dam (43.4578°, -88.8373°, 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).