South Windsor weather in April

In April, South Windsor sees average daytime highs of 58°F and overnight lows near 40°F, with 3.5 in of precipitation across 10.9 wet days and about 13.1 hours of daylight. It is the 7th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 53°F in the first days to 63°F by the end. The sky is clear or mostly clear about 26% 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 42 min by month's end. Set against the rest of the year, April is South Windsor's 11th-clearest and 3rd-windiest month. For the whole year in context, see South Windsor's year-round climate.

Daytime high
58°
7th warmest
Overnight low
40°
6th coldest
Precipitation
3.5 in
10.9 wet days
Daylight
13 h 06 min
5:17 AM – 6:24 PM
Cloud cover
64%
11th clearest
Wind
7 mph
3rd windiest
Solar energy
5 kWh/m²
Travel score
4.3
out of 10

South Windsor is town in Hartford County, Connecticut, United States.

Density
329/km²
people per km²
Founded
1652

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 53°F in the first days to 63°F by the end.

A typical April day in South Windsor reaches about 58°F in the afternoon and slips back to 40°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 47°F and 71°F. Set against its neighbours, April runs about 12°F warmer than March and about 10°F cooler than May.

20°40°60°80°151015202530
Avg high (°F)Avg low (°F)
15335
25336
35336
45436
55437
65537
75537
85638
95638
105638
115739
125739
135839
145840
155940
165940
175941
186041
196041
206042
216142
226142
236143
246243
256243
266244
276244
286344
296345
306345

How April really feels in South Windsor

Once humidity and wind are folded in, April averages 0 days that feel above 90°F and 8 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
8
wind chill below the day's low

The story in April is cold — wind chill drags the overnight "feels like" below the raw low.

South Windsor weather by month

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

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan36° / 22°3.39.75.69.30.0
Feb38° / 23°3.08.7510.30.0
Mar46° / 30°4.110.5411.71.4
Apr58° / 40°3.510.90.913.14.3
May68° / 50°3.210.8014.36.1
Jun78° / 59°3.711.50156.5
Jul83° / 65°3.410.4014.75.7
Aug81° / 63°3.910013.76.4
Sep74° / 56°3.88.7012.37.0
Oct62° / 45°4.09.30.210.95.4
Nov51° / 35°3.38.70.99.62.5
Dec41° / 27°4.110.24.390.2

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% 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 59%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14060
24060
34060
44060
54060
64159
74159
84159
94159
104159
114060
124060
134159
144159
154159
164159
174258
184258
194258
204357
214258
224258
234258
244258
254357
264258
274258
284357
294258
304258

Chance of precipitation in April

Any precipitationSnow

South Windsor gets around 3.5 in of rain and snow over 10.9 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 37% and peaks near 38% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%50%151015202530
Rain chance (%)Snow chance (%)
1387
2387
3387
4387
5386
6386
7376
8375
9365
10365
11364
12364
13363
14363
15363
16362
17362
18372
19371
20361
21361
22361
23361
24361
25361
26361
27360
28360
29360
30360

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 97% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
19910
29910
39910
49910
59910
69910
79910
89910
99910
109910
119820
129820
139820
149820
159820
169820
179730
189730
199730
209730
219730
229730
239730
249541
259541
269541
279541
289541
299451
309451

Wind in April

Winds average 7 mph in April.

Across April, daily wind ranges from about 7 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
97light breeze
107light breeze
117light breeze
127light breeze
137light breeze
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 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 78 minutes over April. Sunrise moves from 5:43 AM to 4:56 AM, and sunset from 6:08 PM to 6:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:436:08
212.55:416:09
312.55:396:10
412.65:376:11
512.65:366:12
612.75:346:13
712.75:326:14
812.85:306:16
912.85:296:17
1012.85:276:18
1112.95:256:19
1212.95:246:20
1313.05:226:21
1413.05:206:22
1513.15:196:23
1613.15:176:24
1713.25:156:26
1813.25:146:27
1913.35:126:28
2013.35:116:29
2113.45:096:30
2213.45:076:31
2313.45:066:32
2413.55:046:33
2513.55:036:35
2613.65:016:36
2713.65:006:37
2813.74:586:38
2913.74:576:39
3013.74:566:40

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5 kWh/m².

For context, solar energy here swings from a low near 1.68 kWh/m² to a high of 5.96 kWh/m² in June across the year — April's 5 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.6Bright
54.6Bright
64.7Bright
74.7Bright
84.8Bright
94.8Bright
104.8Bright
114.9Bright
124.9Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.3Bright
305.3Bright
Planning a trip in April

Hazard calendar for South Windsor

In seasonPeak

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

South Windsor 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 South Windsor?

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

4.3
Sightseeing
7th-best month of the year
0.4
Beach & pool
7th-best month of the year

April is a reasonable time to visit South Windsor for sightseeing.

What to pack for South Windsor in April

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

In April, South Windsor sees daytime highs around 58°F and nights near 40°F. Worth packing: a warm layer, rain gear and sun protection. About 11 days see rain.

a warm layerrain gearsun protection

UV index in South Windsor in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in South Windsor peaks around July 11 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 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 highHighModerateLowJul 11UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar4Moderate
Apr5High
May8Very high
Jun7Very high
Jul8Very high
Aug5High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in South Windsor 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 South Windsor is worst in July — around 15 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1615 µg/m³Nov 197 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb11Good
Mar12Good
Apr12Good
May13Moderate
Jun14Moderate
Jul15Moderate
Aug13Moderate
Sep11Good
Oct9Good
Nov7Good
Dec8Good
Location & terrain

Where is South Windsor?

South Windsor sits at 41.8°N, 72.6°W, 33 ft above sea level, in United States. The nearest listed city is Windsor, 2.5 mi away.

Topography around South Windsor

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

Within 2 miles, the terrain around South Windsor has only modest variations in elevation — a maximum elevation change of 197 ft around an average of 62 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 968 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,575 ft.

The land around South Windsor is covered by trees (59%) within 2 miles, trees (67%) within 10 miles, and trees (83%) within 50 miles.

2 miles
197 ft
10 miles
968 ft
50 miles
2,575 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
April weather nearby: Windsor 2.5 mi · East Hartford 3.1 mi · Hartford 5.6 mi · Bloomfield 5.6 mi · Manchester 6.2 mi · West Hartford 7.5 mi · Glastonbury 7.5 mi · Wethersfield 7.5 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 South Windsor (41.8237°, -72.6212°, elevation 33 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).