Archived Clear Sky Chart Images
for San Juan Observatory, (CO)

A Sponsored Feature

Each day lists the local time, hh:mm in 24h time, that is the starting hour of a past clear sky chart. Each clear sky chart forecasts a few days into the future. There are at least two clear sky chart updates per day. So there are multiple overlapping forecasts for each day.

August
Mon	Tue	Wed	Thu	Fri	Sat	Sun
10 03:00 09:00 15:00 21:00	11 03:00 09:00 15:00 21:00 +4 charts from previous days	12 03:00 09:00 15:00 21:00 +8 charts from previous days	13 03:00 09:00 15:00 21:00 +12 charts from previous days	14 03:00 09:00 15:00 21:00 +14 charts from previous days	15 03:00 09:00 15:00 21:00 +14 charts from previous days	16 03:00 +14 charts from previous days
17 12:00 15:00 21:00 +11 charts from previous days	18 03:00 09:00 15:00 21:00 +10 charts from previous days	19 03:00 04:00 09:00 15:00 21:00 +10 charts from previous days	20 03:00 09:00 21:00 +12 charts from previous days	21 03:00 09:00 15:00 21:00 +14 charts from previous days	22 03:00 09:00 15:00 21:00 22:00 +14 charts from previous days	23 03:00 09:00 15:00 21:00 22:00 +14 charts from previous days
24 03:00 09:00 15:00 21:00 +15 charts from previous days	25 03:00 09:00 15:00 21:00 22:00 +16 charts from previous days	26 03:00 09:00 16:00 21:00 +17 charts from previous days	27 03:00 09:00 16:00 21:00 +16 charts from previous days	28 03:00 09:00 15:00 16:00 21:00 22:00 +15 charts from previous days	29 03:00 09:00 +17 charts from previous days	30 16:00 21:00 +14 charts from previous days
31 03:00 09:00 15:00 21:00 +12 charts from previous days
September
Mon	Tue	Wed	Thu	Fri	Sat	Sun
	1 09:00 10:00 15:00 21:00 +12 charts from previous days	2 09:00 15:00 21:00 +10 charts from previous days	3 03:00 09:00 15:00 23:00 +13 charts from previous days	4 03:00 09:00 15:00 22:00 +13 charts from previous days	5 03:00 09:00 15:00 21:00 +13 charts from previous days	6 03:00 09:00 15:00 21:00 +14 charts from previous days
7 03:00 09:00 15:00 21:00 +14 charts from previous days	8 03:00 09:00 15:00 21:00 +14 charts from previous days	9 03:00 09:00 +14 charts from previous days

Instead of the last few past clear sky chart images, some people prefer long-term averages of forecasts. See the Forecast History/Climate page.