	Sun May 11	Today Mon May 12	Tue May 13	Wed May 14	Thu May 15	Fri May 16	Sat May 17	Sun May 18	Mon May 19	Tue May 20	Wed May 21	Thu May 22	Fri May 23	Sat May 24
Boston US

Autumn weather

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

Temperatures

Maximum Temperatures

Minimum Temperatures

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

Conditions

Sunny Weather

Period	Boston
Sep 1	6.5 hours/day
Sep 8	6.3 hours/day
Sep 15	6.0 hours/day
Sep 22	5.1 hours/day
Oct 1	3.6 hours/day
Oct 8	5.3 hours/day
Oct 15	5.4 hours/day
Oct 22	3.6 hours/day
Nov 1	4.6 hours/day
Nov 8	5.9 hours/day
Nov 15	4.4 hours/day
Nov 22	4.7 hours/day
Average	5.1 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

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

Wind Speed

Humidity

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Astronomy

Sunrise Time

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

Sunset Time

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

Useful Day Length

Period	Boston
Sep 1	12:13 hours
Sep 8	12:01 hours
Sep 15	11:49 hours
Sep 22	11:34 hours
Oct 1	11:20 hours
Oct 8	11:08 hours
Oct 15	10:56 hours
Oct 22	10:34 hours
Nov 1	10:10 hours
Nov 8	9:26 hours
Nov 15	9:20 hours
Nov 22	9:15 hours
Average	10:48 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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Weather in Boston

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Daily Forecast

Autumn weather

Temperatures

Conditions

Astronomy

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	Boston US
Sun May 11
Today Mon May 12
Tue May 13
Wed May 14
Thu May 15
Fri May 16
Sat May 17

Period	Boston
Sep 1	77.4°F
Sep 8	76.1°F
Sep 15	72.3°F
Sep 22	70.7°F
Oct 1	67.5°F
Oct 8	64.8°F
Oct 15	63.1°F
Oct 22	59.4°F
Nov 1	58.1°F
Nov 8	52.0°F
Nov 15	46.9°F
Nov 22	46.0°F
Average	62.9°F

Period	Boston
Sep 1	61.5°F
Sep 8	61.0°F
Sep 15	59.0°F
Sep 22	57.2°F
Oct 1	54.3°F
Oct 8	52.3°F
Oct 15	48.0°F
Oct 22	47.8°F
Nov 1	44.4°F
Nov 8	38.1°F
Nov 15	34.0°F
Nov 22	33.8°F
Average	49.3°F

Period	Boston
Sep 1	0.2in
Sep 8	0.1in
Sep 15	0.1in
Sep 22	0.2in
Oct 1	0.1in
Oct 8	0.1in
Oct 15	0.1in
Oct 22	0.2in
Nov 1	0.1in
Nov 8	0.1in
Nov 15	0.2in
Nov 22	0.2in
Average	0.2in

Period	Boston
Sep 1	9.5mph
Sep 8	8.8mph
Sep 15	9.6mph
Sep 22	10.3mph
Oct 1	9.4mph
Oct 8	10.4mph
Oct 15	11.1mph
Oct 22	11.5mph
Nov 1	11.0mph
Nov 8	11.8mph
Nov 15	12.4mph
Nov 22	13.3mph
Average	10.8mph

Period	Boston
Sep 1	68.9%
Sep 8	70.2%
Sep 15	70.9%
Sep 22	70.8%
Oct 1	73.5%
Oct 8	69.9%
Oct 15	65.1%
Oct 22	72.9%
Nov 1	68.8%
Nov 8	61.6%
Nov 15	65.4%
Nov 22	67.5%
Average	68.8%

Period	Boston
Sep 1	6:13
Sep 8	6:20
Sep 15	6:28
Sep 22	6:36
Oct 1	6:45
Oct 8	6:53
Oct 15	7:01
Oct 22	7:11
Nov 1	6:58
Nov 8	6:30
Nov 15	6:39
Nov 22	6:49
Average	6:42

Period	Boston
Sep 1	19:13
Sep 8	19:01
Sep 15	18:49
Sep 22	18:34
Oct 1	18:20
Oct 8	18:08
Oct 15	17:58
Oct 22	17:46
Nov 1	17:10
Nov 8	16:26
Nov 15	16:20
Nov 22	16:15
Average	17:48