Seymour weather in April

In April, Seymour sees average daytime highs of 65°F and overnight lows near 46°F, with 4.9 in of precipitation across 12.5 wet days and about 13 hours of daylight. It is the 7th-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 61°F in the first days to 69°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 36 min by month's end. Set against the rest of the year, April is Seymour's 7th-clearest and 1st-windiest month. For the whole year in context, see Seymour's year-round climate.

Daytime high
65°
7th warmest
Overnight low
46°
6th coldest
Precipitation
4.9 in
12.5 wet days
Daylight
13 hours
6:13 AM – 7:14 PM
Cloud cover
64%
7th clearest
Wind
8 mph
1st windiest
Solar energy
5.11 kWh/m²
Travel score
5.5
out of 10

Seymour is city in Indiana, United States.

Density
629/km²
people per km²
Founded
1852

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 61°F in the first days to 69°F by the end.

A typical April day in Seymour 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)
16041
26042
36142
46142
56243
66243
76344
86344
96444
106445
116445
126545
136546
146546
156546
166647
176647
186647
196647
206748
216748
226748
236749
246749
256849
266850
276850
286950
296951
306951

How April really feels in Seymour

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.

Seymour weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan39° / 25°3.39.33.49.60.0
Feb43° / 27°3.08.43.410.50.6
Mar53° / 36°4.2111.711.73.0
Apr65° / 46°4.912.50.2135.5
May74° / 56°5.112.7014.16.3
Jun82° / 65°4.211.6014.75.7
Jul86° / 68°3.511.4014.55.0
Aug84° / 66°3.19.3013.55.6
Sep79° / 59°2.98.1012.37.0
Oct66° / 47°3.28.10116.3
Nov53° / 37°3.49.10.89.93.1
Dec43° / 29°3.69.92.99.30.5

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 13% of April, with mostly cloudy or overcast conditions the remaining 61%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13961
23961
33961
44060
54060
64060
74060
84159
94159
104159
114159
124159
134060
143961
153961
163961
173961
183961
193961
203961
213862
223862
233862
243763
253763
263862
273862
283763
293862
303961

Chance of precipitation in April

Any precipitation

Seymour gets around 4.9 in of rain and snow over 12.5 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 42% and peaks near 42% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202530
Rain chance (%)
142
242
342
442
542
642
742
842
942
1042
1142
1242
1342
1441
1541
1641
1741
1841
1941
2041
2141
2241
2341
2442
2542
2642
2742
2842
2942
3042

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 86% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
193610
292620
392620
491720
591720
690730
790730
890730
988840
1088840
1188840
1287850
1387850
1487850
1587850
1687850
1786950
1886950
1986950
2086950
21841060
22841060
23841060
24831160
25821170
26811270
27811270
28781381
29771391
30761491

Wind in April

Winds average 8 mph in April, the windiest month of the year.

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
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
287light breeze
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 6:37 AM to 5:54 AM, and sunset from 7:00 PM to 7:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:377:00
212.46:357:01
312.56:347:02
412.56:327:03
512.66:307:04
612.66:297:04
712.66:277:05
812.76:267:06
912.76:247:07
1012.86:227:08
1112.86:217:09
1212.86:197:10
1312.96:187:11
1412.96:167:12
1513.06:157:13
1613.06:137:14
1713.16:127:15
1813.16:107:16
1913.16:097:17
2013.26:077:18
2113.26:067:19
2213.36:057:20
2313.36:037:21
2413.36:027:22
2513.46:007:23
2613.45:597:24
2713.55:587:25
2813.55:567:26
2913.55:557:27
3013.65:547:28

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.11 kWh/m².

For context, solar energy here swings from a low near 1.73 kWh/m² to a high of 6.23 kWh/m² in June across the year — April's 5.11 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.8Bright
44.8Bright
54.8Bright
64.9Bright
74.9Bright
84.9Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
Planning a trip in April

Is April a good time to visit Seymour?

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

5.5
Sightseeing
6th-best month of the year
2.1
Beach & pool
7th-best month of the year

April is a reasonable time to visit Seymour for sightseeing.

What to pack for Seymour in April

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

In April, Seymour sees daytime highs around 65°F and nights near 46°F. Worth packing: a warm layer, rain gear and sun protection. About 13 days see rain.

a warm layerrain gearsun protection

UV index in Seymour 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 Seymour peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 23UV 9Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May7Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov3Moderate
Dec2Low

Air quality in Seymour 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 Seymour is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (October, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1316 µg/m³Oct 237 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar11Good
Apr11Good
May13Moderate
Jun15Moderate
Jul17Moderate
Aug13Moderate
Sep10Good
Oct7Good
Nov7Good
Dec8Good
Location & terrain

Where is Seymour?

Seymour sits at 39.0°N, 85.9°W, 604 ft above sea level, in United States. The nearest listed city is Columbus, 17 mi away.

Topography around Seymour

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

Within 2 miles, the terrain around Seymour has only modest variations in elevation — a maximum elevation change of 98 ft around an average of 587 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 489 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 810 ft.

The land around Seymour is covered by cropland (35%), grassland (25%) and artificial surfaces (22%) within 2 miles, cropland (53%) and trees (32%) within 10 miles, and trees (53%) and cropland (32%) within 50 miles.

2 miles
98 ft
10 miles
489 ft
50 miles
810 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Columbus 17 mi · Bloomington 37 mi · Franklin 37 mi · Shelbyville 39 mi · Clarksville 47 mi · New Albany 47 mi · Greenwood 47 mi · Jeffersonville 48 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 Seymour (38.9592°, -85.8902°, elevation 604 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).