Summer weather

Calculations are based on the last 8 years of historical weather data.

Temperatures

Maximum Temperatures

Period	Chicago	Houston	Atlanta
Jun 1	71.4°F	90.1°F	85.1°F
Jun 8	72.3°F	93.6°F	85.5°F
Jun 15	76.5°F	93.0°F	87.3°F
Jun 22	77.0°F	91.8°F	88.2°F
Jul 1	79.2°F	92.5°F	89.4°F
Jul 8	79.2°F	93.0°F	89.2°F
Jul 15	79.9°F	93.9°F	90.0°F
Jul 22	80.4°F	92.5°F	89.8°F
Aug 1	79.7°F	94.3°F	88.9°F
Aug 8	79.5°F	95.2°F	90.7°F
Aug 15	78.6°F	95.5°F	88.3°F
Aug 22	80.1°F	91.9°F	88.2°F
Average	88.4°F	77.8°F	93.1°F

Minimum Temperatures

Period	Chicago	Houston	Atlanta
Jun 1	59.0°F	75.0°F	67.8°F
Jun 8	60.4°F	76.5°F	68.4°F
Jun 15	63.9°F	77.5°F	69.8°F
Jun 22	65.7°F	77.9°F	71.1°F
Jul 1	67.5°F	78.1°F	73.6°F
Jul 8	68.0°F	78.3°F	73.2°F
Jul 15	69.3°F	78.3°F	73.6°F
Jul 22	69.3°F	78.4°F	73.6°F
Aug 1	68.9°F	79.0°F	73.2°F
Aug 8	68.4°F	79.9°F	74.3°F
Aug 15	68.5°F	80.1°F	72.5°F
Aug 22	68.2°F	79.0°F	72.1°F
Average	71.9°F	66.4°F	78.2°F

Maximum/minimum temperature averages are computed by averaging the max/min temperature of each day for a given period.

Conditions

Sunny Weather

Period	Chicago	Houston	Atlanta
Jun 1	9.7 hours/day	5.4 hours/day	6.0 hours/day
Jun 8	7.7 hours/day	8.5 hours/day	5.4 hours/day
Jun 15	8.9 hours/day	6.1 hours/day	6.8 hours/day
Jun 22	7.4 hours/day	4.2 hours/day	5.3 hours/day
Jul 1	7.3 hours/day	4.8 hours/day	4.8 hours/day
Jul 8	7.3 hours/day	5.8 hours/day	4.2 hours/day
Jul 15	7.4 hours/day	6.1 hours/day	5.0 hours/day
Jul 22	8.1 hours/day	5.7 hours/day	6.1 hours/day
Aug 1	7.4 hours/day	6.2 hours/day	4.9 hours/day
Aug 8	8.2 hours/day	6.8 hours/day	6.3 hours/day
Aug 15	7.0 hours/day	7.1 hours/day	5.6 hours/day
Aug 22	7.5 hours/day	4.2 hours/day	5.4 hours/day
Average	5.5 hours/day	7.8 hours/day	5.9 hours/day

Sun hours are computed from the number of hours of direct sunlight. The length of the day can affect these measurements; for example, northern cities have longer days in summer.

Precipitation Levels

Period	Chicago	Houston	Atlanta
Jun 1	0.1in	0.2in	0.1in
Jun 8	0.2in	0.0in	0.2in
Jun 15	0.2in	0.3in	0.2in
Jun 22	0.3in	0.2in	0.2in
Jul 1	0.1in	0.2in	0.2in
Jul 8	0.2in	0.2in	0.2in
Jul 15	0.2in	0.1in	0.2in
Jul 22	0.1in	0.1in	0.1in
Aug 1	0.1in	0.2in	0.2in
Aug 8	0.1in	0.1in	0.2in
Aug 15	0.2in	0.1in	0.2in
Aug 22	0.1in	0.5in	0.2in
Average	0.2in	0.2in	0.2in

Average amount of precipitation that falls in a form of a rain, snow, sleet or hail.

Wind Speed

Period	Chicago	Houston	Atlanta
Jun 1	11.6mph	10.2mph	8.3mph
Jun 8	12.0mph	11.0mph	8.6mph
Jun 15	11.9mph	12.3mph	9.2mph
Jun 22	12.5mph	11.6mph	9.3mph
Jul 1	10.3mph	10.3mph	8.1mph
Jul 8	10.8mph	10.4mph	7.9mph
Jul 15	11.4mph	10.9mph	7.8mph
Jul 22	10.6mph	10.4mph	7.3mph
Aug 1	11.1mph	10.1mph	7.8mph
Aug 8	10.9mph	11.0mph	7.6mph
Aug 15	10.9mph	10.4mph	8.1mph
Aug 22	11.6mph	10.9mph	8.3mph
Average	8.2mph	11.3mph	10.8mph

Humidity

Period	Chicago	Houston	Atlanta
Jun 1	67.7%	69.7%	61.1%
Jun 8	70.2%	62.3%	62.2%
Jun 15	68.8%	66.4%	61.4%
Jun 22	72.7%	70.0%	62.5%
Jul 1	73.4%	69.2%	65.6%
Jul 8	73.5%	69.9%	64.2%
Jul 15	73.0%	69.0%	64.1%
Jul 22	68.1%	66.9%	60.1%
Aug 1	69.2%	63.9%	63.0%
Aug 8	67.6%	66.7%	59.9%
Aug 15	70.1%	63.7%	61.2%
Aug 22	67.4%	67.2%	61.4%
Average	62.2%	70.1%	67.1%

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Astronomy

Sunrise Time

Period	Chicago	Houston	Atlanta
Jun 1	5:17	6:20	6:27
Jun 8	5:16	6:20	6:26
Jun 15	5:16	6:21	6:26
Jun 22	5:17	6:23	6:29
Jul 1	5:22	6:26	6:32
Jul 8	5:26	6:29	6:35
Jul 15	5:32	6:32	6:40
Jul 22	5:40	6:38	6:46
Aug 1	5:48	6:43	6:52
Aug 8	5:55	6:47	6:57
Aug 15	6:02	6:51	7:02
Aug 22	6:11	6:56	7:08
Average	6:42	5:36	6:36

Sunrise times are output in the local timezone of each place.

Sunset Time

Period	Chicago	Houston	Atlanta
Jun 1	20:22	20:19	20:45
Jun 8	20:26	20:22	20:48
Jun 15	20:28	20:24	20:50
Jun 22	20:29	20:26	20:52
Jul 1	20:29	20:26	20:52
Jul 8	20:26	20:25	20:50
Jul 15	20:22	20:22	20:47
Jul 22	20:14	20:17	20:42
Aug 1	20:05	20:11	20:35
Aug 8	19:56	20:06	20:28
Aug 15	19:46	19:59	20:20
Aug 22	19:33	19:50	20:10
Average	20:42	20:12	20:18

Sunset times are output in the local timezone of each place.

Useful Day Length

Period	Chicago	Houston	Atlanta
Jun 1	13:22 hours	13:19 hours	13:45 hours
Jun 8	13:26 hours	13:22 hours	13:48 hours
Jun 15	13:28 hours	13:24 hours	13:50 hours
Jun 22	13:29 hours	13:26 hours	13:52 hours
Jul 1	13:29 hours	13:26 hours	13:52 hours
Jul 8	13:26 hours	13:25 hours	13:50 hours
Jul 15	13:22 hours	13:22 hours	13:47 hours
Jul 22	13:14 hours	13:17 hours	13:42 hours
Aug 1	13:05 hours	13:11 hours	13:35 hours
Aug 8	12:56 hours	13:06 hours	13:28 hours
Aug 15	12:46 hours	12:59 hours	13:19 hours
Aug 22	12:33 hours	12:50 hours	13:02 hours
Average	13:42 hours	13:12 hours	13:18 hours

Discards daylight hours before 7 AM. In places that are located to the west of the timezone, the sun rises and sets later compared to the cities that are located to the east. This means that the useful day length is longer in the cities located to the west of the time zone.

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Summer weather

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