There is no standard collective noun for 'dry weather', however, the term sometimes used is a spell of dry weather.
A herbarium
Drought
coma
Spell means a period of time
the period
The word bereavement means a period of grief. This is a word most commonly used after a loved one dies.
rod
Drought .
That is a drought.
mintcondion
Climate.
The phrase "wary of the weather" means that someone/something is cautious of the weather, since the word wary means caution or cautious.
The national weather service
Weather-over-a-period-of-time.
The word "molder" means to disintegrate or decay slowly, especially due to neglect. Books that are left in a basement for a long period of time will molder.
A period of 100 years is conveyed by the single word century.
yo mama so stupid that she gave birth to a kid like you who has no idea what the word weather watch means!
In social studies, the term "climate" usually refers to the prevailing attitudes, behaviors, and practices within a society or group of people. It can describe the overall environment or atmosphere of a social setting, including factors like values, norms, and customs that influence interactions and relationships among individuals.
Season