Fields Turning Yellow/ April Showers

I inspected my colonies today, dodging the showers. As I travelled between sites the fields were clearly turning yellow, so the Rape is upon us. This may be a little early as some colonies are still building up, but that may not be a bad thing if broods swell on the Rape instead of having to load lots of supers on, to then dash around and extract before the stuff sets in the comb.
I was dodging April showers all day and it was so noticeable that as a shower approached the activity at hive entrances would suddenly stop; down would come the rain and as it stopped the entrances would come back to life again.