When viewing snow falling, appears white. But soon as it intersects with water as a background it turns to a shade of blue. I highly doubt this is intented as snow particles die when hitting water surfaces as it should. So snow falling above the waterline would have no reason for a color change. This happens for both static water and moving water. Even if the snowfall passing in front of ice, soon as it intersects with the blocks of water under the ice, it changes the tint.
Environment
Minecraft Version: 1.8
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_67, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 322854472 bytes (307 MB) / 802684928 bytes (765 MB) up to 802684928 bytes (765 MB)
Duplicate of MC-9553.