Central Square - Cambridge, Massachusetts
42° 21.82' N - 071° 06.48' W - 20 feet
Sunday December 17 12:30:00 2017

Monthly Summary: 
Yearly Summary: 

Station
Time: 12:30
Date: 17 Dec 2017
Latitude: 42° 21.82' N
Longitude: 071° 06.48' W
Elevation: 20 feet
Daylight: 09:06
 
Sun
Start civil twilight: 06:35
Sunrise: 07:07
Transit: 11:40
Sunset: 16:13
End civil twilight: 16:46
Azimuth: 192.3°
Altitude: 23.3°
Right ascension: 265.6°
Declination: -23.4°
Solstice: 12/21/2017 11:27:48 AM
Equinox: 03/20/2018 12:15:17 PM
 
Moon
Rise: 06:15
Transit: 11:14
Set: 16:10
Azimuth: 199.5°
Altitude: 25.7°
Right ascension: 259.3°
Declination: -19.6°
New moon: 12/18/2017 01:30:25 AM
Full moon: 01/01/2018 09:24:05 PM
Phase: New
0% full
Temperature (°F) Humidity (%) Dew Point (°F)
Current: 29.7
Day Average: 22.5
Day High: 29.7 at 12:28
Day Low: 19.0 at 07:02
Week Average: 22.5
Week High: 29.7 at 12:28:03 PM Sunday
Week Low: 19.0 at 07:02:24 AM Sunday
Month Average: 35.7
Month High: 60.3 on 12/05/2017
Month Low: 17.8 on 12/15/2017
Year Average: 56.3
Year High: 97.6 on 06/12/2017
Year Low: 9.7 on 03/12/2017
All Time Average: 53.8
All Time High: 103.6 on 07/22/2011
All Time Low: -8.6 on 02/14/2016
Current: 35
Day Average: 60
Day High: 70 at 04:01
Day Low: 35 at 12:29
Week Average: 60
Week High: 70 at 04:01:24 AM Sunday
Week Low: 35 at 12:29:21 PM Sunday
Month Average: 68
Month High: 94 on 12/06/2017
Month Low: 35 on 12/17/2017
Year Average: 68
Year High: 98 on 04/06/2017
Year Low: 11 on 03/06/2017
All Time Average: 64
All Time High: 100 on 05/17/2011
All Time Low: 8 on 03/30/2007
Current: 5.4
Day Average: 10.4
Day High: 13.8 at 01:39
Day Low: 5.3 at 12:09
Week Average: 10.4
Week High: 13.8 at 01:39:34 AM Sunday
Week Low: 5.3 at 12:09:17 PM Sunday
Month Average: 10.4
Month High: 56.9 on 12/06/2017
Month Low: 3.9 on 12/14/2017
Year Average: 44.6
Year High: 75.7 on 06/23/2017
Year Low: -11.0 on 03/04/2017
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) Heat Index (°F) Barometer ( inHg)
Current: 24.4
Day Low: 8.4 at 07:57
Week Low: 8.4 at 07:57:38 AM Sunday
Month Low: 5.2 on 12/13/2017
Year Low: -5.7 on 03/05/2017
All Time Low: -24.6 on 02/14/2016
Current: 29.7
Day High: 29.7 at 12:28
Week High: 29.7 at 12:28:03 PM Sunday
Month High: 60.3 on 12/05/2017
Year High: 102.3 on 06/23/2017
All Time High: 111.9 on 08/02/2006
Current: 30.206
Day Average: 30.209
Day High: 30.258 at 09:07
Day Low: 30.129 at 00:07
Week Average: 30.209
Week High: 30.258 at 09:07:02 AM Sunday
Week Low: 30.129 at 12:07:02 AM Sunday
Month Average: 29.931
Month High: 30.471 on 12/04/2017
Month Low: 29.190 on 12/13/2017
Year Average: 29.977
Year High: 30.688 on 01/14/2017
Year Low: 28.832 on 03/14/2017
All Time Average: 29.958
All Time High: 31.100 on 01/04/2015
All Time Low: 28.703 on 02/25/2010
Wind ( mph) Rain ( in - in/hr)
Current: 5 W
Day Average: 3 WNW
Day High: 15 at 10:22
Week Average: 3 WNW
Week High: 15 at 10:22:07 AM Sunday
Month Average: 3 WSW
Month High: 38 on 12/05/2017
Year Average: 3 N
Year High: 46 on 03/02/2017
All Time Average: 3 WNW
All Time High: 46 on 03/02/2017
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: 1.00
Month High Rate: 0.49 on 12/06/2017
Year: 35.09
Year High Rate: 6.62 on 07/12/2017
All Time High Rate: 12.52 on 07/10/2010