Central Square - Cambridge, Massachusetts
42° 21.82' N - 071° 06.48' W - 20 feet
Tuesday May 18 22:00:00 2021
Station
Time: 22:00
Date: 18 May 2021
Latitude: 42° 21.82' N
Longitude: 071° 06.48' W
Elevation: 20 feet
Daylight: 14:43
Sun
Start civil twilight: 04:46
Sunrise: 05:19
Transit: 12:40
Sunset: 20:02
End civil twilight: 20:36
Azimuth: 320.4°
Altitude: -17.6°
Right ascension: 56.1°
Declination: 19.8°
Solstice: 06/20/2021 11:32:14 PM
Equinox: 09/22/2021 03:21:08 PM
Moon
Rise: 10:46
Transit: 18:24
Set: 01:17
Azimuth: 259.2°
Altitude: 40.1°
Right ascension: 143.1°
Declination: 19.1°
Full moon: 05/26/2021 07:13:49 AM
New moon: 06/10/2021 06:52:35 AM
Phase: First Quarter
43% full
Temperature (°F)
Current: 74.0
Day Average: 70.7
Day High: 82.5 at 13:48
Day Low: 57.1 at 05:45
Week Average: 67.1
Week High: 82.5 at 01:48:50 PM Tuesday
Week Low: 54.4 at 05:23:26 AM Monday
Month Average: 58.5
Month High: 82.5 on 05/18/2021
Month Low: 41.9 on 05/01/2021
Year Average: 41.9
Year High: 82.5 on 05/18/2021
Year Low: 8.1 on 01/31/2021
All Time Average: 53.3
All Time High: 103.6 on 07/22/2011
All Time Low: -8.6 on 02/14/2016
Humidity (%)
Current: 39
Day Average: 46
Day High: 70 at 06:56
Day Low: 26 at 16:31
Week Average: 48
Week High: 74 at 07:02:52 AM Monday
Week Low: 22 at 12:52:04 PM Sunday
Month Average: 55
Month High: 94 on 05/04/2021
Month Low: 21 on 05/14/2021
Year Average: 62
Year High: 96 on 04/30/2021
Year Low: 15 on 03/12/2021
All Time Average: 65
All Time High: 100 on 05/17/2011
All Time Low: 8 on 03/30/2007
Dew Point (°F)
Current: 47.5
Day Average: 46.6
Day High: 51.0 at 09:19
Day Low: 43.1 at 12:20
Week Average: 45.5
Week High: 54.7 at 04:37:16 PM Sunday
Week Low: 35.7 at 12:52:54 PM Sunday
Month Average: 45.5
Month High: 54.7 on 05/16/2021
Month Low: 23.8 on 05/11/2021
Year Average: 28.3
Year High: 62.1 on 03/26/2021
Year Low: -8.1 on 03/02/2021
All Time Average: 40.3
All Time High: 90.5 on 07/01/2009
All Time Low: -27.8 on 02/14/2016
Wind Chill (°F)
Current: 74.0
Day Low: 57.1 at 05:45
Week Low: 54.4 at 05:23:26 AM Monday
Month Low: 35.0 on 05/01/2021
Year Low: -13.3 on 01/29/2021
All Time Low: -26.5 on 01/07/2018
Heat Index (°F)
Current: 72.9
Day High: 80.6 at 13:47
Week High: 80.6 at 01:47:52 PM Tuesday
Month High: 80.6 on 05/18/2021
Year High: 80.6 on 05/18/2021
All Time High: 113.7 on 07/20/2019
Barometer ( inHg)
Current: 30.126
Day Average: 30.157
Day High: 30.217 at 00:06
Day Low: 30.072 at 17:12
Week Average: 30.175
Week High: 30.241 at 09:08:02 AM Monday
Week Low: 30.072 at 05:12:02 PM Tuesday
Month Average: 29.923
Month High: 30.241 on 05/17/2021
Month Low: 29.427 on 05/01/2021
Year Average: 29.949
Year High: 30.550 on 03/10/2021
Year Low: 29.186 on 04/30/2021
All Time Average: 29.964
All Time High: 31.100 on 01/04/2015
All Time Low: 28.625 on 02/07/2020
Wind ( mph)
Current: 2 NW
Day Average: 2 WSW
Day High: 18 at 14:44
Week Average: 2 SW
Week High: 21 at 03:29:12 PM Sunday
Month Average: 3 W
Month High: 25 on 05/07/2021
Year Average: 4 W
Year High: 40 on 03/02/2021
All Time Average: 3 WNW
All Time High: 88 on 04/13/2020
Rain ( in - in/hr)
Rate: 0.00
Day: 0.00
Day High Rate: 0.00 at 00:00
Week: 0.01
Week High Rate: 0.00 at 12:00:03 AM Sunday
Month: 1.15
Month High Rate: 0.44 on 05/05/2021
Year: 9.75
Year High Rate: 655.35 on 04/23/2021
All Time High Rate: 655.35 on 04/23/2021