Lighting Condition*  
Daylight EV
Light sand or snow in full or slightly hazy sunlight (distinct shadows) 16
Typical scene in full or slightly hazy sunlight (distinct shadows) 15
Typical scene in hazy sunlight (soft shadows) 14
Typical scene, cloudy bright (no shadows) 13
Typical scene, heavy overcast 12
Areas in open shade, clear sunlight 12
Outdoor, Natural light EV
Rainbows
Clear sky background 15
Cloudy background 14
Sunsets and skylines
Just before sunset 12 to14
At sunset 12
Just after sunset 9 to 11
The Moon, altitude > 40°
Full 15
Gibbous 14
Quarter 13
Crescent 12
Moonlight, Moon altitude > 40°
Full −3 to −2
Gibbous −4
Quarter −6
Aurora borealis and aurora australis
Bright −4 to −3
Medium −6 to −5
Outdoor, Artificial Light EV
Neon and other bright signs 9 to 10
Night sports 9
Fires and burning buildings 9
Bright street scenes 8
Night street scenes and window displays 7 to 8
Night vehicle traffic 5
Fairs and amusement parks 7
Christmas tree lights 4 to 5
Floodlit buildings, monuments, and fountains 3 to 5
Distant views of lighted buildings 2
Indoor, Artificial Light EV
Art galleries and museums 8 to 11
Sports events and stage shows 8 to 9
Circuses 8
Ice shows 9
Offices and work areas 7 to 8
Home interiors 5 to 7
Christmas tree lights 4 to 5
   
* This table was extracted from a Wikipedia article:  
http://en.wikipedia.org/wiki/Exposure_value#Tabulated_exposure_values