While showers make the weather above ground unpredictable, they are not necessarily a problem for your bulbs and plants with there roots, tucked safely away in the soil of your garden.
In fact, intermittent light showers can help to keep your plants and bulbs well watered; giving them the moisture they need in order to grow.
The only reason avoid planting bulbs on a rainy day is if your soil has poor drainage, which can cause it to become waterlogged and threaten your bulb and plant survival when placed in wet soggy ground.
If you are worried about poor drainage adding grit to the soil will help or alternatively you can start planting bulbs in pots or any container you wish to use.
A greenhouse or warm kitchen provides the necessary shelter from the elements, while you can also control the precise amount of moisture your bulbs and plants are exposed to.
Once your bulbs and plants are established and the worst of the weather is over you can transfer them to your flower beds ready for the explosion of colour as they come into bloom.