Paris is always gray in winter. Gray and rainy. However, I don't think I remember it being so horribly gray and wet for such a long time without a break.
Last year, the Paris weather was mediocre. Still Paris had 81 hours of sunshine in January. This year, so far, only 35.5 and we are 3/4 through the month. Add to that, already 88 mm. of rainfall. The ground is soggy; it just can't absorb any more!
So, in the brief time I have this morning, sitting in front of the computer, it's sunny. The sky is blue. Scattered showers are expected. I am not going to sit at the computer any longer.