Central Square - Cambridge, Massachusetts
42° 21.82' N - 071° 06.48' W - 20 feet
Saturday December 15 21:20:00 2018
Station
Time: 21:20
Date: 15 Dec 2018
Latitude: 42° 21.82' N
Longitude: 071° 06.48' W
Elevation: 20 feet
Daylight: 09:07
Sun
Start civil twilight: 06:33
Sunrise: 07:06
Transit: 11:39
Sunset: 16:13
End civil twilight: 16:45
Azimuth: 292.2°
Altitude: -55.4°
Right ascension: 263.5°
Declination: -23.3°
Solstice: 12/21/2018 05:22:34 PM
Equinox: 03/20/2019 05:58:31 PM
Moon
Rise: 12:21
Transit: 18:10
Set: 00:08
Azimuth: 234.1°
Altitude: 27.0°
Right ascension: 2.1°
Declination: -4.6°
Full moon: 12/22/2018 12:48:35 PM
New moon: 01/05/2019 08:28:11 PM
Phase: First Quarter
56% full
Temperature (°F)
Current: 43.6
Day Average: 49.0
Day High: 53.8 at 14:23
Day Low: 43.6 at 21:18
Week Average: 33.5
Week High: 53.8 at 02:23:43 PM Saturday
Week Low: 20.0 at 05:14:55 AM Thursday
Month Average: 34.7
Month High: 56.9 on 12/03/2018
Month Low: 19.2 on 12/08/2018
Year Average: 53.8
Year High: 98.9 on 07/03/2018
Year Low: -2.6 on 01/07/2018
All Time Average: 53.7
All Time High: 103.6 on 07/22/2011
All Time Low: -8.6 on 02/14/2016
Humidity (%)
Current: 68
Day Average: 80
Day High: 91 at 00:09
Day Low: 60 at 15:34
Week Average: 63
Week High: 91 at 12:09:47 AM Saturday
Week Low: 39 at 05:13:02 PM Wednesday
Month Average: 64
Month High: 97 on 12/03/2018
Month Low: 28 on 12/08/2018
Year Average: 70
Year High: 98 on 01/23/2018
Year Low: 14 on 04/22/2018
All Time Average: 64
All Time High: 100 on 05/17/2011
All Time Low: 8 on 03/30/2007
Dew Point (°F)
Current: 33.7
Day Average: 42.7
Day High: 47.3 at 11:13
Day Low: 33.7 at 21:18
Week Average: 22.0
Week High: 47.3 at 11:13:57 AM Saturday
Week Low: 6.6 at 09:01:06 PM Wednesday
Month Average: 22.0
Month High: 51.2 on 12/03/2018
Month Low: 0.0 on 12/08/2018
Year Average: 43.2
Year High: 79.5 on 07/03/2018
Year Low: -13.1 on 01/07/2018
All Time Average: 40.5
All Time High: 90.5 on 07/01/2009
All Time Low: -27.8 on 02/14/2016
Wind Chill (°F)
Current: 41.5
Day Low: 38.8 at 19:54
Week Low: 10.0 at 02:32:34 AM Thursday
Month Low: 7.5 on 12/08/2018
Year Low: -26.5 on 01/07/2018
All Time Low: -26.5 on 01/07/2018
Heat Index (°F)
Current: 43.6
Day High: 53.8 at 14:23
Week High: 53.8 at 02:23:43 PM Saturday
Month High: 56.9 on 12/03/2018
Year High: 111.0 on 07/03/2018
All Time High: 111.9 on 08/02/2006
Barometer ( inHg)
Current: 30.204
Day Average: 30.141
Day High: 30.220 at 20:53
Day Low: 30.095 at 13:57
Week Average: 30.212
Week High: 30.552 at 02:12:02 AM Friday
Week Low: 29.854 at 12:15:02 AM Wednesday
Month Average: 30.097
Month High: 30.552 on 12/14/2018
Month Low: 29.461 on 12/03/2018
Year Average: 30.005
Year High: 30.812 on 02/13/2018
Year Low: 28.838 on 01/04/2018
All Time Average: 29.962
All Time High: 31.100 on 01/04/2015
All Time Low: 28.703 on 02/25/2010
Wind ( mph)
Current: 4 NE
Day Average: 3 NW
Day High: 17 at 17:28
Week Average: 2 WNW
Week High: 23 at 11:57:17 AM Wednesday
Month Average: 3 WNW
Month High: 28 on 12/04/2018
Year Average: 3 WNW
Year High: 44 on 03/02/2018
All Time Average: 3 WNW
All Time High: 46 on 03/02/2017
Rain ( in - in/hr)
Rate: 0.00
Day: 0.00
Day High Rate: 0.00 at 00:00
Week: 0.00
Week High Rate: 0.00 at 12:00:04 AM Sunday
Month: 0.03
Month High Rate: 0.00 on 12/01/2018
Year: 30.36
Year High Rate: 8.47 on 01/13/2018
All Time High Rate: 12.52 on 07/10/2010