[{date:"2021-05-07T03:54:27.318+00:00",deviceId:"12345t6",temperature:"21"},{date:"2021-05-07T05:54:27.318+00:00",deviceId:"12345t6",temperature:"23"},{date:"2021-05-08T05:54:27.318+00:00",deviceId:"12345t6",temperature:"25"}]

db.collection.aggregate([{"$facet":{"hourly":[{"$group":{"_id":{$dateTrunc:{date:{"$toDate":"$date"},unit:"hour"}},"avg":{"$avg":{"$toInt":"$temperature"}}}}],"daily":[{"$group":{"_id":{$dateTrunc:{date:{"$toDate":"$date"},unit:"day"}},"avg":{"$avg":{"$toInt":"$temperature"}}}}],"weekly":[{"$group":{"_id":{$dateTrunc:{date:{"$toDate":"$date"},unit:"week"}},"avg":{"$avg":{"$toInt":"$temperature"}}}}],"monthly":[{"$group":{"_id":{$dateTrunc:{date:{"$toDate":"$date"},unit:"month"}},"avg":{"$avg":{"$toInt":"$temperature"}}}}]}}])