Has it rained enough in Washington DC?
The last rain heavy enough to soak in fell over a week ago. What has fallen since wet the leaves and no more.
Washington DC has had 36.6mm of rain in the last 30 days. A normal October here brings 91.4mm, so that is about 40% of what the ground usually gets — and the driest October in 30 years was 3.5mm.
Rain in Washington DC through a normal year
Across a normal year Washington DC gets about 1148.7mm of rain, most of it in September (118.9mm) and least in February (75.1mm).
A normal October in Washington DC has rain on 10 days. Only 7 of them bring enough to reach a root.
That makes Washington DC one of the wetter places this site covers in the United States in October — 14th of 30, against Seattle at the wet end (131.5mm) and Las Vegas at the dry end (8.4mm).
What that means for what you grow
- Pots and hanging basketsWorst hit, and first to suffer. Very little soil, fully exposed, and nothing to fall back on — in this weather they can empty in a day.
- Salad and leafy vegShallow-rooted and quick to bolt once they run dry. First priority of anything in the ground.
- Beds and bordersA long soak that reaches the roots is worth more than a daily sprinkle, which only wets the surface and is gone by lunchtime.
- Established shrubs and treesFine as they are. They draw from far deeper than a dry spell reaches.