Germantown weather in April

In April, Germantown sees average daytime highs of 65°F and overnight lows near 46°F, with 3.4 in of precipitation across 10.4 wet days and about 13 hours of daylight. It is the 7th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 60°F in the first days to 69°F by the end. The sky is clear or mostly clear about 27% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 24 min at the start of April to 13 h 36 min by month's end. Set against the rest of the year, April is Germantown's 9th-clearest and 4th-windiest month. For the whole year in context, see Germantown's year-round climate.

Daytime high
65°
7th warmest
Overnight low
46°
6th coldest
Precipitation
3.4 in
10.4 wet days
Daylight
13 hours
5:39 AM – 6:40 PM
Cloud cover
62%
9th clearest
Wind
7 mph
4th windiest
Solar energy
5.18 kWh/m²
Travel score
5.7
out of 10

Germantown is census-designated place in Montgomery County, Maryland, United States.

Density
1,950/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 60°F in the first days to 69°F by the end.

A typical April day in Germantown reaches about 65°F in the afternoon and slips back to 46°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 52°F and 78°F. Set against its neighbours, April runs about 12°F warmer than March and about 9°F cooler than May.

20°40°60°80°151015202530
Avg high (°F)Avg low (°F)
15941
26041
36042
46142
56142
66243
76243
86243
96344
106344
116444
126445
136445
146546
156546
166546
176546
186647
196647
206647
216748
226748
236748
246748
256849
266849
276849
286950
296950
306950

How April really feels in Germantown

Once humidity and wind are folded in, April 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

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

Germantown weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan41° / 27°3.18.63.19.60.1
Feb44° / 29°2.88.43.210.50.8
Mar53° / 36°3.810.22.311.73.0
Apr65° / 46°3.410.40.2135.7
May73° / 55°3.811.5014.16.5
Jun83° / 64°3.610.8014.75.7
Jul87° / 69°4.011.3014.54.6
Aug85° / 67°3.410.5013.55.3
Sep78° / 60°4.59.3012.36.9
Oct66° / 49°3.47.80116.4
Nov55° / 38°3.07.70.39.93.7
Dec45° / 32°3.58.81.99.31.1

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 16% of April, with mostly cloudy or overcast conditions the remaining 58%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14159
24258
34357
44357
54456
64456
74456
84456
94456
104456
114456
124456
134357
144357
154258
164258
174159
184159
194159
204258
214159
224159
234258
244159
254258
264258
274258
284258
294357
304357

Chance of precipitation in April

Any precipitationSnow

Germantown gets around 3.4 in of rain and snow over 10.4 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 35% and peaks near 38% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202530
Rain chance (%)Snow chance (%)
1353
2353
3353
4352
5352
6342
7342
8342
9331
10331
11331
12331
13331
14331
15341
16341
17340
18350
19350
20350
21360
22360
23360
24360
25360
26370
27370
28370
29380
30380

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 90% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
197300
297300
396400
496400
596400
695500
795500
895500
994600
1093610
1192710
1292710
1392710
1491810
1591810
1691810
1790820
1890820
1989920
2089920
2189920
2288930
2387931
24861031
25851041
26841141
27841141
28821251
29821251
30801361

Wind in April

Winds average 7 mph in April.

Across April, daily wind ranges from about 7 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 24 min at the start of April to 13 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 72 minutes over April. Sunrise moves from 6:02 AM to 5:19 AM, and sunset from 6:25 PM to 6:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:026:25
212.46:016:26
312.55:596:27
412.55:576:28
512.65:566:29
612.65:546:30
712.65:536:31
812.75:516:32
912.75:496:33
1012.85:486:34
1112.85:466:35
1212.95:456:36
1312.95:436:37
1412.95:426:38
1513.05:406:39
1613.05:396:40
1713.15:376:41
1813.15:366:42
1913.15:346:43
2013.25:336:44
2113.25:316:45
2213.35:306:46
2313.35:286:47
2413.45:276:48
2513.45:266:49
2613.45:246:50
2713.55:236:51
2813.55:226:52
2913.55:206:53
3013.65:196:54

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.18 kWh/m².

For context, solar energy here swings from a low near 1.91 kWh/m² to a high of 6.15 kWh/m² in June across the year — April's 5.18 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.8Bright
44.8Bright
54.9Bright
64.9Bright
75.0Bright
85.0Bright
95.0Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.5Bright
Planning a trip in April

Is April a good time to visit Germantown?

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

5.7
Sightseeing
4th-best month of the year
2.0
Beach & pool
7th-best month of the year

April is a reasonable time to visit Germantown for sightseeing.

What to pack for Germantown in April

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

In April, Germantown sees daytime highs around 65°F and nights near 46°F. Worth packing: a warm layer, rain gear and sun protection. About 10 days see rain.

a warm layerrain gearsun protection

UV index in Germantown in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Germantown peaks around July 11 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 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 highHighModerateLowJul 11UV 9Dec 19UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5High
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug7High
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Germantown in April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.

Air quality in Germantown is worst in July — around 17 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (November, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1317 µg/m³Nov 129 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb12Moderate
Mar13Moderate
Apr13Moderate
May15Moderate
Jun16Moderate
Jul17Moderate
Aug15Moderate
Sep12Moderate
Oct9Good
Nov9Good
Dec10Good
Location & terrain

Where is Germantown?

Germantown sits at 39.2°N, 77.3°W, 440 ft above sea level, in United States. The nearest listed city is Montgomery Village, 4.3 mi away.

Topography around Germantown

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

Within 2 miles, the terrain around Germantown has only modest variations in elevation — a maximum elevation change of 295 ft around an average of 433 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,332 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,533 ft.

The land around Germantown is covered by trees (68%) within 2 miles, trees (63%) and grassland (20%) within 10 miles, and trees (61%) within 50 miles.

2 miles
295 ft
10 miles
1,332 ft
50 miles
2,533 ft
treesgrasslandcroplandartificial surfaceswater
April weather nearby: Montgomery Village 4.3 mi · Gaithersburg 4.3 mi · North Potomac 6.2 mi · Redland 6.8 mi · Damascus 8.7 mi · Rockville 8.7 mi · Olney 11 mi · Potomac 11 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 Germantown (39.1732°, -77.2716°, elevation 440 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).