The Daily Parker

Politics, Weather, Photography, and the Dog

Chicago sunrises and sunsets, 2009-2010

It's time for the semi-annual update of the Chicago sunrise chart. (You can get one for your own location at http://www.wx-now.com/Sunrise/SunriseChart.aspx.)

Date Significance Sunrise Sunset Daylight
2009
2 Jul 8:30pm sunset 05:20 20:30 15:10
16 Jul 5:30am sunrise 05:30 20:24 14:54
9 Aug 8pm sunset 05:53 19:59 14:06
16 Aug 6am sunrise 06:00 19:50 13:49
29 Aug 7:30pm sunset 06:14 19:29 13:16
14 Sep 6:30am sunrise 06:30 19:02 12:31
15 Sep 7pm sunset 06:31 19:00 12:29
22 Sep Equinox, 16:18 CDT 06:38 18:48 12:09
25 Sep 12-hour day 06:42 18:43 12:01
3 Oct 6:30pm sunset 06:50 18:29 11:39
12 Oct 7am sunrise 07:00 18:14 11:14
21 Oct 6pm sunset 07:10 18:00 10:50
31 Oct Latest sunrise until 1 Nov. 2010
Latest sunset until Mar 6th
07:23 17:46 10:24
1 Nov Standard time returns
Earliest sunrise until Mar 3rd
06:24 16:45 10:21
6 Nov 6:30am sunrise (again) 06:30 16:39 10:08
15 Nov 4:30pm sunset 06:41 16:30 9:48
2 Dec 7am sunrise 07:00 16:21 9:20
8 Dec Earliest sunset of the year 07:06 16:20 9:14
21 Dec Solstice, 11:47 CST 07:15 16:23 9:08
2010
3 Jan Latest sunrise until Oct. 29th 07:19 16:33 9:14
27 Jan 5pm sunset 07:08 17:00 9:51
4 Feb 7am sunrise 07:00 17:10 10:09
20 Feb 5:30pm sunset 06:39 17:30 10:50
27 Feb 6:30am sunrise 06:29 17:39 11:09
13 Mar Earliest sunrise until Apr. 18th
Earliest sunset until Oct. 25th
06:06 17:55 11:49
14 Mar Daylight savings time begins
Latest sunrise until Oct. 17th
Earliest sunset until Sept. 18th
07:04 18:56 11:52
17 Mar 7am sunrise, 7pm sunset
12-hour day
06:59 19:00 12:00
20 Mar Equinox 12:32 CDT 06:54 19:04 12:09
3 Apr 6:30am sunrise (again) 06:30 19:19 12:48
13 Apr 7:30pm sunset 06:14 19:30 13:16
22 Apr 6am sunrise 06:00 19:40 13:40
11 May 8pm sunset 05:35 20:01 14:25
16 May 5:30am sunrise 05:30 20:06 14:35
14 Jun Earliest sunrise of the year 05:15 20:28 15:12
21 Jun Solstice 06:28 CDT
8:30pm sunset
05:16 20:30 15:14
27 Jun Latest sunset of the year 05:18 20:31 15:12

You can get sunrise information for your location at wx-now.com.

A tease of spring

Spring officially begins Friday at 6:44 CDT, but today we're getting a little hint of it. Right now it's 19°C in Chicago; if it can squeak up to 22°C it will be the warmest day since October 12th.

Another trivial tidbit: because the earth's atmosphere bends the sun's rays a little, today, and not the official equinox Friday, is the day when we have 12 hours of daylight. From tomorrow until September 25th, days are longer than nights just about everywhere between the Tropic of Cancer and the Arctic Circle.

Update, 14:05 CDT: Yep, we just hit 22°C, warmest temperature in Chicago for 156 days. Why am I inside?

366 days and 1 second

Turns out, 2008 will be one of the longest years ever when astronomers insert an extra second at 17:59:60 CT tonight:

The additional second makes up for the difference in two clocks – one based on Earth’s rotation and the other on the more precise atomic time of the UTC.

In the U.S., the extra second will be added by the U.S. Naval Observatory at 6:59:59 p.m. Eastern Standard Time (11:59:59 p.m. Universal time). It will be the 24th "leap second" tacked on to the universal time scale since 1972.

The popular press have written about this as prolonging the gloom of 2008. I don't know if that's accurate. People familiar with the structure of fiction will notice that although we had the technical climax of our present story on November 4th, the dramatic climax hasn't happened yet. I have no idea what that will look like, only that we'll probably see it in 2009, and the dénoument that follows will make us wax nostialgic about the halcyon days of 2008. Put another way: There is a tide; when you're in the trough of a wave, things don't really feel better until you've climbed halfway to the next crest.

I'm not trying to depress anyone. I just think we've got some difficult times ahead, for the simple reason that the worst really is behind us.

Enjoy the extra second.

Earliest sunset

It's a little thing, but it means our evenings won't seem as gloomy from now on: tonight's sunset in Chicago is the earliest of the year. Seriously. It has to do with the speed of the earth's orbit around the sun this time of year (it's faster, as we approach perihelion).

In any event, tomorrow night the sun sets just a few seconds later than it does tonight, which just adds a little happiness this time of year.

Chicago Sunrise Chart

It's time for the semi-annual update of the Chicago sunrise chart. (You can get one for your own location at http://www.wx-now.com/Sunrise/SunriseChart.aspx.)

Date Significance Sunrise Sunset Daylight
2008
2 Jul 8:30pm sunset 05:20 20:30 15:09
16 Jul 5:30am sunrise 05:30 20:24 14:55
8 Aug 8pm sunset 05:52 20:00 14:08
16 Aug 6am sunrise 06:00 19:49 13:48
28 Aug 7:30pm sunset 06:13 19:30 13:17
15 Sep 6:30am sunrise; 7pm sunset 06:30 19:00 12:29
22 Sep Equinox, 10:44 CDT 06:39 18:48 12:08
25 Sep 12-hour day 06:42 18:42 12:00
2 Oct 6:30pm sunset 06:49 18:30 11:40
12 Oct 7am sunrise 07:00 18:14 11:13
21 Oct 6pm sunset 07:11 18:00 10:48
1 Nov Latest sunrise until 2 Nov. 2010
Latest sunset until Mar 4th
07:24 17:45 10:20
2 Nov Standard time returns
Earliest sunrise until Mar 2nd
06:25 16:43 10:18
6 Nov 6:30am sunrise (again) 06:30 16:39 10:08
15 Nov 4:30pm sunset 06:41 16:30 9:48
2 Dec 7am sunrise 07:01 16:20 9:19
8 Dec Earliest sunset of the year 07:06 16:20 9:13
21 Dec Solstice, 06:04 CST 07:16 16:23 9:07
2009
3 Jan Latest sunrise until Oct. 29th 07:19 16:33 9:14
27 Jan 5pm sunset 07:08 17:00 9:52
4 Feb 7am sunrise 07:00 17:10 10:10
20 Feb 5:30pm sunset 06:39 17:30 10:51
26 Feb 6:30am sunrise 06:30 17:38 11:08
7 Mar Earliest sunrise until April 12th
Earliest sunset until Oct. 25th
06:16 17:49 11:32
8 Mar Daylight savings time begins
Latest sunrise until Oct. 25th
07:14 18:50 11:35
17 Mar 7am sunrise, 7pm sunset
12-hour day
06:59 19:00 12:01
20 Mar Equinox 06:44 CDT 06:54 19:04 12:09
3 Apr 6:30am sunrise (again) 06:30 19:19 12:49
13 Apr 7:30pm sunset 06:13 19:30 13:16
22 Apr 6am sunrise 05:59 19:40 13:40
10 May 8pm sunset 05:36 20:00 14:24
15 May 5:30am sunrise 05:30 20:05 14:34
14 Jun Earliest sunrise of the year 05:15 20:28 15:13
21 Jun Solstice 00:45 CDT
8:30pm sunset
05:16 20:30 15:14
26 Jun Latest sunset of the year 05:17 20:31 15:13

You can get sunrise information for your location at wx-now.com.

Chicago Sunrise Chart

It's time for the semi-annual update of the Chicago sunrise chart. (You can get one for your own location at http://www.wx-now.com/Sunrise/SunriseChart.aspx.)

Date Significance Sunrise Sunset Daylight
2008
4 Jan Latest sunrise until Oct 28 07:19 16:33 9:14
28 Jan 5pm sunset 07:08 17:00 9:52
5 Feb 7am sunrise 07:00 17:11 10:10
20 Feb 5:30pm sunset 06:40 17:30 10:49
27 Feb 6:30am sunrise 06:30 17:38 11:08
8 Mar Earliest sunrise until April 12th
Earliest sunset until Oct 28th
06:14 17:50 11:36
9 Mar Daylight savings time begins
Latest sunrise until Oct 22nd
07:12 18:51 11:39
16 Mar 7am sunrise, 7pm sunset
12-hour day
07:00 19:00 12:00
20 Mar Equinox 00:48 CDT 06:54 19:04 12:10
3 Apr 6:30am sunrise (again) 06:30 19:19 12:49
13 Apr 7:30pm sunset 06:13 19:30 13:17
22 Apr 6am sunrise 05:59 19:41 13:31
10 May 8pm sunset 05:35 20:00 14:24
15 May 5:30am sunrise 05:30 20:05 14:34
14 Jun Earliest sunrise of the year 05:15 20:28 15:13
20 Jun Solstice 18:59 CDT 05:15 20:30 15:15
21 Jun 8:30pm sunset 05:16 20:30 15:14
27 Jun Latest sunset of the year 05:18 20:31 15:13
2 Jul 8:30pm sunset 05:20 20:30 15:09
16 Jul 5:30am sunrise 05:30 20:24 14:55
8 Aug 8pm sunset 05:52 20:00 14:08
16 Aug 6am sunrise 06:00 19:49 13:48
28 Aug 7:30pm sunset 06:13 19:30 13:17
15 Sep 6:30am sunrise; 7pm sunset 06:30 19:00 12:29
22 Sep Equinox, 10:44 CDT 06:39 18:48 12:08
25 Sep 12-hour day 06:42 18:42 12:00
2 Oct 6:30pm sunset 06:49 18:30 11:40
12 Oct 7am sunrise 07:00 18:14 11:13
21 Oct 6pm sunset 07:11 18:00 10:48
1 Nov Latest sunrise of the year
Latest sunset until Mar 5th
07:24 17:45 10:20
2 Nov Standard time returns
Earliest sunrise until Mar 2nd
06:25 16:43 10:18
6 Nov 6:30am sunrise (again) 06:30 16:39 10:08
15 Nov 4:30pm sunset 06:41 16:30 9:48
2 Dec 7am sunrise 07:01 16:20 9:19
8 Dec Earliest sunset of the year 07:06 16:20 9:13
21 Dec Solstice, 06:04 CST 07:16 16:23 9:07

You can get sunrise information for your location at wx-now.com.