regional_weather/ca_weathers/rain.lua

local name = "regional_weather:rain"

local conditions = {
	min_height = regional_weather.settings.min_height,
	max_height = regional_weather.settings.max_height,
	min_heat = 35,
	min_humidity = 50,
	max_humidity = 65,
	min_biome_humidity = 26,
	indoors = false,
	not_biome = {
		"cold_desert",
		"cold_desert_ocean",
		"desert",
		"desert_ocean",
		"sandstone_desert",
		"sandstone_desert_ocean",
		"tundra"
	}
}

local effects = {}

effects["climate_api:sound"] = {
	name = "weather_rain",
	gain = 1.5
}

effects["climate_api:particles"] = {
	boxsize = { x = 18, y = 2, z = 18 },
	v_offset = 6,
	expirationtime = 1.6,
	size = 2,
	amount = 15,
	velocity = 6,
	acceleration = 0.05,
	texture = "weather_raindrop.png",
	glow = 5
}

climate_api.register_weather(name, conditions, effects)