Seeing for 38.44°N 77.13°W

Tue 2018-11-20 to Wed 2018-11-21
Ground Sky
Hour (EST) Temp rel. hum. Clouds
Best values are marked
arc sec.
19 7°C 77% 0 1.43
20 6°C 77% 0 1.43
21 5°C 75% 0 1.33
22 4°C 67% 0 1.30
23 3°C 59% 0 1.33
0 2°C 50% 0 1.41
1 1°C 46% 0 1.51
2 0°C 44% 0 1.60
3 0°C 42% 0 1.65
4 0°C 42% 0 1.66
5 0°C 43% 0 1.64
6 1°C 46% 0 1.59
7 2°C 54% 0 1.51
8 4°C 63% 0 1.42
9 5°C 69% 0 1.38
10 7°C 71% 0 1.38
11 9°C 71% 4 1.40
12 9°C 71% 8 1.45
13 10°C 71% 12 1.51
14 10°C 70% 9 1.54
15 10°C 68% 5 1.53
16 9°C 63% 1 1.51
17 8°C 61% 2 1.44
18 7°C 61% 3 1.45