6
Aa5-68 (401)	Aa5-69		Aa5-76 (409)	Aa5-77 (410)
day 201		3	day 205 (= 45 + 160)

		64
Aa5-78 (411)	Aa5-79		Aa6-61	Aa6-62 (478)	Aa6-63	Aa6-64 (480)
day 206		32	day 239		day 240 (= 572 - 664 / 2)

		186
Aa6-65	Aa6-66 (482)		Aa8-84	Aa8-85 (670)
day 573 = 241 = day 1		93	day 335 = day 95

It is quite possible to close the cycle by fusing the end of side a with its beginning:

		186					86
Aa6-65	Aa6-66 (482)		Aa8-84	Aa8-85 (670)	Aa1-1	Aa1-2		Aa1-89	Aa1-90
day 1		93	day 95		day 96		43	day 140

The overall view of side a could then be:

		186					86
Aa6-65	Aa6-66		Aa8-84	Aa8-85	Aa1-1	Aa1-2		Aa1-89	Aa1-90
140

		306
Aa2-1	Aa2-2		Aa5-66	Aa5-67
155

		6
Aa5-68	Aa5-69		Aa5-76	Aa5-77
5

		64
Aa5-78	Aa5-79		Aa6-61	Aa6-62	Aa6-63	Aa6-64
35

155 + 5 + 35 = 195 = 13 * 15.

Aa8-85 is glyph number 670. But 8 * 85 = 680. If we add 10 glyphs we arrive at a kind of final:

Aa1-9	Aa1-10 (680)	Aa1-11	Aa1-12

Anyhow, there are 140 days of rain, it seems, beginning with the day of the Beast, and ending at the end of glyph line a1.

The length of the sun season is, though, probably shorter than 155 days, at least is day number 150 a tagata moe:

Aa5-54 (387)	Aa5-55	Aa5-56	Aa5-57	Aa5-58	Aa5-59	Aa5-60 (393)
149		150		151
Aa5-61	Aa5-62	Aa5-63	Aa5-64	Aa5-65	Aa5-66	Aa5-67 (400)
	153		154		day 200 - 45 = 155