Annandale weather in April

In April, Annandale sees average daytime highs of 66°F and overnight lows near 48°F, with 3.4 in of rain across 9.9 wet days and about 13 hours of daylight. It is the 7th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 62°F in the first days to 70°F by the end. The sky is clear or mostly clear about 29% 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 Annandale's 9th-clearest and 2nd-windiest month. For the whole year in context, see Annandale's year-round climate.

Daytime high
66°
7th warmest
Overnight low
48°
6th coldest
Rainfall
3.4 in
9.9 wet days
Daylight
13 hours
5:39 AM – 6:39 PM
Cloud cover
60%
9th clearest
Wind
7 mph
2nd windiest
Solar energy
5.22 kWh/m²
Travel score
6.0
out of 10

Annandale is census designated place in Virginia, United Stetes.

Density
2,014/km²
people per km²
Founded
1685

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 62°F in the first days to 70°F by the end.

A typical April day in Annandale reaches about 66°F in the afternoon and slips back to 48°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 53°F and 80°F. Set against its neighbours, April runs about 11°F warmer than March and about 8°F cooler than May.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
16143
26243
36244
46244
56344
66345
76445
86445
96446
106546
116546
126547
136647
146647
156648
166748
176748
186749
196749
206849
216850
226850
236950
246951
256951
266951
276951
287052
297052
307052

How April really feels in Annandale

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.

Annandale weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan43° / 29°3.18.72.89.60.6
Feb46° / 31°2.88.52.510.51.4
Mar55° / 38°3.910.31.711.73.5
Apr66° / 48°3.49.90136.0
May75° / 57°3.711.4014.16.5
Jun84° / 66°3.511.4014.75.4
Jul88° / 71°3.811.7014.44.3
Aug86° / 69°3.510.1013.55.1
Sep79° / 62°4.39.4012.36.8
Oct67° / 51°3.47.90116.6
Nov56° / 40°2.97.60.29.94.2
Dec47° / 33°3.48.91.69.31.6

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 15% of April, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14555
24555
34753
44753
54753
64852
74852
84852
94753
104753
114753
124753
134654
144555
154456
164357
174357
184357
194357
204357
214258
224258
234159
244357
254357
264258
274258
284258
294357
304357

Chance of precipitation in April

Any precipitation

Annandale gets around 3.4 in of rain over 9.9 wet days in April. 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.

0%10%20%30%40%50%151015202530
Rain chance (%)
132
233
333
433
532
632
732
832
932
1031
1131
1231
1332
1432
1532
1633
1733
1833
1933
2034
2134
2234
2334
2434
2535
2635
2735
2836
2936
3036

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 87% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
196400
296400
395500
495500
593610
693610
792710
892710
991810
1091810
1190910
1290910
1389920
14881020
15881020
16871120
17871120
18861130
19861130
20851230
21841240
22831241
23831241
24821251
25811351
26801361
27791371
28781471
29771481
30751591

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
17light breeze
27light breeze
37light breeze
47light breeze
57light breeze
67light breeze
77light breeze
87light breeze
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 6:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:026:25
212.46:006:26
312.55:596:27
412.55:576:28
512.55:566:29
612.65:546:30
712.65:536:31
812.75:516:32
912.75:496:33
1012.85:486:34
1112.85:466:34
1212.85:456:35
1312.95:436:36
1412.95:426:37
1513.05:406:38
1613.05:396:39
1713.15:376:40
1813.15:366:41
1913.15:346:42
2013.25:336:43
2113.25:316:44
2213.35:306:45
2313.35:296:46
2413.35:276:47
2513.45:266:48
2613.45:246:49
2713.55:236:50
2813.55:226:51
2913.55:206:52
3013.65:196:53

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.22 kWh/m².

For context, solar energy here swings from a low near 1.98 kWh/m² to a high of 6.15 kWh/m² in June across the year — April's 5.22 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.8Bright
34.8Bright
44.9Bright
54.9Bright
65.0Bright
75.0Bright
85.0Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in April

Hazard calendar for Annandale

In seasonPeak

None of Annandale's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Annandale sits in the Atlantic hurricane belt; the season peaks August–October.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is April a good time to visit Annandale?

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

6.0
Sightseeing
4th-best month of the year
2.6
Beach & pool
7th-best month of the year

April is a reasonable time to visit Annandale for sightseeing.

What to pack for Annandale in April

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

In April, Annandale sees daytime highs around 66°F and nights near 48°F. Worth packing: rain gear and sun protection. About 10 days see rain.

rain gearsun protection

UV index in Annandale 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 Annandale 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
Jan2Moderate
Feb3Moderate
Mar5High
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug7High
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Annandale 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 Annandale 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 Annandale?

Annandale sits at 38.8°N, 77.2°W, 361 ft above sea level, in United States. The nearest listed city is West Falls Church, 2.5 mi away.

Topography around Annandale

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

Within 2 miles, the terrain around Annandale has only modest variations in elevation — a maximum elevation change of 213 ft around an average of 308 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 627 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,533 ft.

The land around Annandale is covered by trees (79%) within 2 miles, trees (72%) within 10 miles, and trees (63%) within 50 miles.

2 miles
213 ft
10 miles
627 ft
50 miles
2,533 ft
treesgrasslandcroplandartificial surfaceswater
April weather nearby: West Falls Church 2.5 mi · Springfield 3.1 mi · Lincolnia 3.1 mi · Merrifield 3.7 mi · Baileys Crossroads 3.7 mi · West Springfield 4.3 mi · Franconia 4.3 mi · Idylwood 4.3 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 Annandale (38.8304°, -77.1964°, elevation 361 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).