| Station | |
| Time: | 20:45 |
| Date: | 18 Dec 2018 |
| 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: | 11:41 |
| Sunset: | 16:14 |
| End civil twilight: | 16:46 |
| Azimuth: | 283.3° |
| Altitude: | -49.0° |
| Right ascension: | 266.8° |
| Declination: | -23.4° |
| Solstice: | 12/21/2018 05:22:34 PM |
| Equinox: | 03/20/2019 05:58:31 PM |
| Moon | |
| Rise: | 13:42 |
| Transit: | 20:26 |
| Set: | 02:13 |
| Azimuth: | 188.3° |
| Altitude: | 56.5° |
| Right ascension: | 38.1° |
| Declination: | 9.1° |
| Full moon: | 12/22/2018 12:48:35 PM |
| New moon: | 01/05/2019 08:28:11 PM |
| Phase: | Waxing Gibbous 83% full |
| Temperature (°F) | |
| Current: | 26.6 |
| Day Average: | 29.0 |
| Day High: | 37.9 at 00:00 |
| Day Low: | 24.7 at 05:41 |
| Week Average: | 36.5 |
| Week High: | 44.1 at 10:13:59 AM Sunday |
| Week Low: | 24.7 at 05:41:51 AM Tuesday |
| Month Average: | 35.0 |
| Month High: | 56.9 on 12/03/2018 |
| Month Low: | 19.2 on 12/08/2018 |
| Year Average: | 53.6 |
| 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: | 58 |
| Day Average: | 56 |
| Day High: | 84 at 01:14 |
| Day Low: | 45 at 12:47 |
| Week Average: | 74 |
| Week High: | 94 at 10:46:14 PM Sunday |
| Week Low: | 45 at 12:47:08 PM Tuesday |
| Month Average: | 65 |
| 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: | 13.8 |
| Day Average: | 15.0 |
| Day High: | 30.4 at 00:00 |
| Day Low: | 11.3 at 06:08 |
| Week Average: | 28.5 |
| Week High: | 39.0 at 06:40:54 PM Sunday |
| Week Low: | 11.3 at 06:08:27 AM Tuesday |
| Month Average: | 28.5 |
| Month High: | 51.2 on 12/03/2018 |
| Month Low: | 0.0 on 12/08/2018 |
| Year Average: | 43.1 |
| 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: | 19.0 |
| Day Low: | 7.2 at 06:07 |
| Week Low: | 7.2 at 06:07:15 AM Tuesday |
| Month Low: | 7.2 on 12/18/2018 |
| Year Low: | -26.5 on 01/07/2018 |
| All Time Low: | -26.5 on 01/07/2018 |
| Heat Index (°F) | |
| Current: | 26.6 |
| Day High: | 37.9 at 00:00 |
| Week High: | 44.1 at 10:13:59 AM Sunday |
| 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: | 30.002 |
| Day Average: | 29.780 |
| Day High: | 30.002 at 20:41 |
| Day Low: | 29.501 at 00:30 |
| Week Average: | 29.788 |
| Week High: | 30.210 at 12:00:04 AM Sunday |
| Week Low: | 29.485 at 03:43:03 PM Monday |
| Month Average: | 30.048 |
| Month High: | 30.552 on 12/14/2018 |
| Month Low: | 29.461 on 12/03/2018 |
| Year Average: | 30.004 |
| 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: | 7 WNW |
| Day Average: | 9 WNW |
| Day High: | 33 at 05:01 |
| Week Average: | 6 NW |
| Week High: | 33 at 05:01:25 AM Tuesday |
| Month Average: | 3 WNW |
| Month High: | 33 on 12/18/2018 |
| 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: | 0.39 |
| Week High Rate: | 0.84 at 10:31:34 PM Sunday |
| Month: | 0.42 |
| Month High Rate: | 0.84 on 12/16/2018 |
| Year: | 30.75 |
| Year High Rate: | 8.47 on 01/13/2018 |
| All Time High Rate: | 12.52 on 07/10/2010 |