date-season
===

Author: Sean Fridman

License: MIT

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Description
---

Takes a date and returns its season as a string. Currently supports only "Western" astronomical seasons


API
---

The resolver will return one of 'Spring', 'Summer', 'Fall', or 'Winter'
(and 'Autumn' instead of 'Fall' if configured)


Usage
---

```Javascript
// Returns a function which accepts configuration options for the
// desired resolver.
var createSeasonResolver = require('date-season')

// The season resolver will default to the Northern hemisphere
var seasonNorth = createSeasonResolver()
seasonNorth('2015-12-25') // 'Winter'
seasonNorth(new Date()) // whatever season it currently is in the Northern hemisphere

// We can configure the resolver with the following options
var seasonSouth = createSeasonResolver({ north: false, autumn: true })
seasonSouth('2015-12-25') // 'Summer'
```