Late yesterday afternoon, the National Weather Service posted a frost advisory for our area.  I didn’t see this until I checked the forecast at about 9:00 pm.  The advisory did not seem to make sense—the expected overnight temperature was warmer than 40 degrees—but just to be on the safe side, I covered the garden with a sheet of black plastic.  The effects of micro-climate should not be underestimated.

The temperature did drop into the 30s (but only just, at 39 degrees) so there was no real danger of frost.  Still, I imagine that the peas, carrots, turnips, radishes and beets appreciated the protection.  They have spent their entire (if short) lives out in the cold and probably envy their cousins (the tomatoes, squash, cucumbers, eggplant, bell peppers and basil) who have yet to venture outdoors.

Now that we are into the month of May, the risk of further frosty nights is rapidly diminishing.  It’s tempting to think that the threat has vanished but statistics don’t work that way.  No, there is still a non-zero chance of freezing temperatures but the probability has dropped below ten percent.