Database
[{"_id":"1","date":ISODate("2017-02-01T00:00:00Z")},{"_id":"2","date":ISODate("2017-02-01T00:00:00Z")},{"_id":"3","date":ISODate("2017-03-03T00:00:00Z")},{"_id":"4","date":ISODate("2017-02-02T00:00:00Z")},{"_id":"5","date":ISODate("2017-03-01T00:00:00Z")},{"_id":"6","date":ISODate("2017-02-01T00:00:00Z")},{"_id":"7","date":ISODate("2017-01-02T00:00:00Z")},{"_id":"8","date":ISODate("2017-01-03T00:00:00Z")}]
Query
db.collection.aggregate([{"$addFields":{month:{"$month":"$date"}}},{"$match":{month:3}},{"$sort":{date:1}},{"$project":{date:1}}])