Autumn is from mid August onwards as far as the weather goes if not officially according to the calender.
1	Autumn	Autumn	PROPN	NNP	Number=Sing	5	nsubj	5:nsubj	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	cop	5:cop	_
3	from	from	ADP	IN	_	5	case	5:case	_
4	mid	mid	X	AFX	_	5	compound	5:compound	_
5	August	August	PROPN	NNP	Number=Sing	0	root	0:root	_
6	onwards	onwards	ADV	RB	_	5	advmod	5:advmod	_
7	as	as	ADV	RB	_	8	advmod	8:advmod	_
8	far	far	ADV	RB	Degree=Pos	5	advmod	5:advmod	_
9	as	as	SCONJ	IN	_	12	mark	12:mark	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	11:det	_
11	weather	weather	NOUN	NN	Number=Sing	12	nsubj	12:nsubj	_
12	goes	go	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	advcl	8:advcl:as	_
13	if	if	SCONJ	IN	_	15	mark	15:mark	_
14	not	not	PART	RB	_	15	advmod	15:advmod	_
15	officially	officially	ADV	RB	_	5	advcl	5:advcl:if	_
16	according	accord	VERB	VBG	ExtPos=ADP|VerbForm=Ger	19	case	19:case	_
17	to	to	ADP	IN	_	16	fixed	16:fixed	_
18	the	the	DET	DT	Definite=Def|PronType=Art	19	det	19:det	_
19	calender	calender	NOUN	NN	Number=Sing	15	obl	15:obl:according_to	SpaceAfter=No
20	.	.	PUNCT	.	_	5	punct	5:punct	_
