| Cloud Cover: |
Overcast |
90% |
80% |
70% |
60% |
50% |
40% |
30% |
20% |
10% |
Clear |
| Transparency: |
Poor |
Below Average |
Average |
Above average |
Transparent |
| Seeing: |
Very Unstable |
Unstable |
Somewhat Stable |
Mostly Stable |
Perfectly Stable |
| Darkness: |
-3 |
-2 |
-1 |
0 |
1.0 |
2.0 |
3.0 |
3.5 |
4.0 |
4.5 |
5.0 |
5.2 |
5.4 |
5.6 |
5.8 |
| Wind: |
Howling |
Windy |
Breezy |
Slight Breeze |
Calm |
| Humidity: |
< 29 |
30 - 35 |
35 - 40 |
40 - 45 |
45 - 50 |
50 - 55 |
55 - 60 |
60 - 70 |
65 - 70 |
70 - 75 |
75 - 80 |
80 - 85 |
85 - 90 |
90 - 95 |
95 - 100 |
| Temperature: |
-22 - -13 |
-13 - -4 |
-4 - 5 |
5 - 14 |
14 - 23 |
23 - 32 |
32 - 41 |
41 - 50 |
50 - 59 |
59 - 68 |
68 - 77 |
77 - 86 |
86 - 95 |
95 - 104 |
> 104 |
|
