The sun, month by month
Sunrise and sunset in Chicago in April
On April 1 in Chicago the sun rises at 06:36 and sets at 19:14; on day 30 it rises at 05:49 and sets at 19:46. Over the month the day grows 80 minutes longer.
Sunrise06:12
Sunset19:30
Golden hour18:52–19:30
Day length13 h 18 min
Day by day
All times are local to Chicago. Dawn and dusk mark civil twilight.
| Day | Dawn | Sunrise | Sunset | Dusk | Day length |
|---|---|---|---|---|---|
| 1 | 06:08 | 06:36 | 19:14 | 19:42 | 12 h 38 min |
| 2 | 06:06 | 06:34 | 19:15 | 19:43 | 12 h 41 min |
| 3 | 06:04 | 06:32 | 19:16 | 19:44 | 12 h 44 min |
| 4 | 06:02 | 06:31 | 19:17 | 19:45 | 12 h 46 min |
| 5 | 06:01 | 06:29 | 19:18 | 19:47 | 12 h 49 min |
| 6 | 05:59 | 06:27 | 19:19 | 19:48 | 12 h 52 min |
| 7 | 05:57 | 06:25 | 19:21 | 19:49 | 12 h 55 min |
| 8 | 05:55 | 06:24 | 19:22 | 19:50 | 12 h 58 min |
| 9 | 05:54 | 06:22 | 19:23 | 19:51 | 13 h 01 min |
| 10 | 05:52 | 06:20 | 19:24 | 19:52 | 13 h 04 min |
| 11 | 05:50 | 06:19 | 19:25 | 19:54 | 13 h 06 min |
| 12 | 05:48 | 06:17 | 19:26 | 19:55 | 13 h 09 min |
| 13 | 05:47 | 06:15 | 19:27 | 19:56 | 13 h 12 min |
| 14 | 05:45 | 06:14 | 19:28 | 19:57 | 13 h 15 min |
| 15 | 05:43 | 06:12 | 19:30 | 19:58 | 13 h 18 min |
| 16 | 05:41 | 06:10 | 19:31 | 19:60 | 13 h 20 min |
| 17 | 05:40 | 06:09 | 19:32 | 20:01 | 13 h 23 min |
| 18 | 05:38 | 06:07 | 19:33 | 20:02 | 13 h 26 min |
| 19 | 05:36 | 06:06 | 19:34 | 20:03 | 13 h 29 min |
| 20 | 05:35 | 06:04 | 19:35 | 20:04 | 13 h 31 min |
| 21 | 05:33 | 06:02 | 19:36 | 20:06 | 13 h 34 min |
| 22 | 05:31 | 06:01 | 19:37 | 20:07 | 13 h 37 min |
| 23 | 05:30 | 05:59 | 19:39 | 20:08 | 13 h 39 min |
| 24 | 05:28 | 05:58 | 19:40 | 20:09 | 13 h 42 min |
| 25 | 05:27 | 05:56 | 19:41 | 20:11 | 13 h 45 min |
| 26 | 05:25 | 05:55 | 19:42 | 20:12 | 13 h 47 min |
| 27 | 05:23 | 05:53 | 19:43 | 20:13 | 13 h 50 min |
| 28 | 05:22 | 05:52 | 19:44 | 20:14 | 13 h 52 min |
| 29 | 05:20 | 05:50 | 19:45 | 20:15 | 13 h 55 min |
| 30 | 05:19 | 05:49 | 19:46 | 20:17 | 13 h 57 min |
Approximate astronomical values: they can shift a minute or two from year to year.
What about vitamin D in April?
In April, the typical synthesis window in Chicago runs from 10:00 to 16:00: with medium skin and a t-shirt, ~9 min at the best moment is enough.
See the Chicago vitamin D guide