Issue shifting from 1st --> 2nd when cold.

Hi,
Is this something I should be concerned about, and does anyone know what
it might be?

I have a 2000 SL1 with 30,000 miles on it.

In cold weather when I go to shift from 1st to 2nd gear I feel as though
I have to exert more pressure then normal to get it to go into gear...
further there is a "catching" feeling as though something is getting
caught, then uncaught, and then moving finally into second.

If I shift from 1st to 3rd, then into 2nd (not leaving the clutch out
between the whole deal).. it goes into 2nd just fine... Any ideas?