How obvious is it to decrypt numerics encrypted with a reused one time pad? For instance say you encrypt text using the one time pad and you end up with some scrambled text that appears illegible.  If you reused the key for multiple times for enough text, someone could potentially crack the message using something like crib-dragging. The hacker tries and tries until eventually comes up with a message that has meaning and is no longer scrambled. 

However say you use the one time pad technique to encrypt numeric values like dates, time, or just some numbers within a range like say numbers from 00000 - 10000  AND reuse the same key over and over.

For example in the case of dates like a month you would create a key that consists of a random number between 1 and 12, so that when you add the key value to actual month value and mod by 12 (and add 1) you end with a real month value different from the initial.  Then you use the same method (different range of values) with the days, or years, always ensuring you end up with a real date value in the end.

First is it even possible for someone to recognize that the result was encrypted? The values all appear to be legitimate, real, non-scrambled values, just as the originals were (only displaced in time)

If for some reason they figured out that the numeric values were encrypted, would they even be able to decrypt them to their original values?  How would they know that their efforts are resulting in the correct original value?
Yes, the same weaknesses apply. Text on computers is a bunch of numbers; a OTP encrypts a sequence of numbers modulo 2.