Aguila Vista Lodge
Clear Sky Chart
History

This sumarizes the distribution of each different forecast outcome for the Aguila Vista Lodge clear sky chart from 2005-11-06 to 2024-01-31.

This page is a summary of past forecasts. Even though it's based only on forecasts, some people use these pages as clue to a site's climate. But climate data based on actual observation should be preferred (if you can find it!).

Cloud, Transparency and Seeing forecasts are summarized individually. But because good observing conditions require a combination of minimum cloud cover, transparency and seeing, the individual forecast summaries can be difficult to interpret. The observing conditions section counts the combinations of conditions needed for common types of astronomical observation.

Observing Conditions

The following tables count the occurrence of the combinations of forecast and darkness conditions needed for different observations. Conditions are rated by by what percentage of the hours the observation would likely be attempted are usable.
Observation TypeMinimum conditions for hour to be usableOut of hours
Clear of CloudsTransparencySeeingSky Brightness
Planetary:50%(no limit)Average(no limit)Nighttime Hours
Deep Sky:70%Average(no limit)5.9Nighttime Hours
CCD Imaging:70%Below AveragePoor(no limit)Nighttime Hours

Percentages are of nighttime hours per month, or per year, when a particular observing conditions was met. Deep Sky percentages never exceed 50% because the moon is up half the time. Deep sky percentages are much lower for charts at high latitudes because of fewer dark hours in the summer.

Overall

PlanetaryData
Pts
Deep Sky
Max 60%
Data
Pts
Both Planetary and Deep Sky
Max 60%
Data
Pts
Either Planetary or Deep SkyData
Pts
CCD ImagingData
Pts
Night
47%
23868
28%
74561
17%
23813
58%
23813
37%
40548

By Month

MonthDays of MonthPlanetaryData
Pts
Deep Sky
Max 60%
Data
Pts
Both Planetary and Deep Sky
Max 60%
Data
Pts
Either Planetary or Deep SkyData
Pts
CCD ImagingData
Pts
January1st to 10thNight
36%
948
32%
2458
13%
946
48%
946
41%
1439
January11th to 20thNight
36%
925
29%
2445
11%
925
48%
925
39%
1433
January21st to endNight
33%
834
33%
2502
14%
834
49%
834
33%
1442
February1st to 10thNight
33%
720
29%
2160
12%
720
47%
720
34%
1220
February11th to 20thNight
28%
704
25%
2098
10%
700
40%
700
32%
1187
February21st to endNight
21%
592
30%
1776
6%
592
40%
592
30%
1005
March1st to 10thNight
24%
665
27%
2105
7%
665
42%
665
30%
1201
March11th to 20thNight
30%
540
25%
1980
12%
540
46%
540
27%
1116
March21st to endNight
24%
594
29%
2178
12%
594
46%
594
34%
1107
April1st to 10thNight
24%
540
28%
1973
10%
540
48%
540
32%
1022
April11th to 20thNight
22%
533
27%
1777
10%
533
43%
533
31%
986
April21st to endNight
25%
540
31%
1764
12%
540
50%
540
36%
943
May1st to 10thNight
29%
540
28%
1620
14%
540
46%
540
35%
926
May11th to 20thNight
38%
531
21%
1593
14%
531
49%
531
33%
949
May21st to endNight
40%
583
22%
1745
12%
582
55%
582
35%
1039
June1st to 10thNight
60%
540
24%
1620
20%
540
71%
540
53%
777
June11th to 20thNight
56%
540
26%
1620
22%
540
67%
540
54%
777
June21st to endNight
68%
540
25%
1620
26%
540
73%
540
44%
864
July1st to 10thNight
74%
525
17%
1575
18%
525
76%
525
35%
924
July11th to 20thNight
80%
522
32%
1566
33%
522
85%
522
58%
729
July21st to endNight
85%
591
29%
1673
32%
558
89%
558
60%
751
August1st to 10thNight
89%
537
30%
1762
36%
534
91%
534
62%
737
August11th to 20thNight
80%
534
27%
1778
33%
534
81%
534
37%
960
August21st to endNight
79%
594
22%
1980
24%
594
81%
594
37%
1058
September1st to 10thNight
75%
540
23%
1975
26%
540
78%
540
35%
1054
September11th to 20thNight
73%
540
23%
1980
25%
540
75%
540
30%
1106
September21st to endNight
70%
540
28%
1980
27%
540
74%
540
36%
1025
October1st to 10thNight
73%
540
35%
1980
33%
540
79%
540
46%
900
October11th to 20thNight
56%
544
36%
1984
28%
544
66%
544
36%
1002
October21st to endNight
46%
792
33%
2376
18%
792
57%
792
40%
1293
November1st to 10thNight
52%
823
30%
2303
15%
823
60%
823
42%
1278
November11th to 20thNight
47%
950
28%
2470
13%
950
54%
950
45%
1380
November21st to endNight
39%
950
30%
2470
12%
950
48%
950
35%
1517
December1st to 10thNight
45%
950
32%
2470
14%
950
55%
950
41%
1455
December11th to 20thNight
36%
949
28%
2903
13%
949
46%
949
30%
1790
December21st to endNight
37%
1038
20%
4302
13%
1026
48%
1026
28%
2156

Individual Forecasts

The length of each colored bar in the "occurrence of each Forecast" column is proportional to the number of times the chart forecast that color. The percentages are of the total number of hours per month, or per year, with a particular forecast. The colors as the same as those used in clear sky charts.

Note: Transparency probabilities are only counted for those hours that have 30% or less cloud cover. Seeing probabilities are only counted for those hours that have 80% or less cloud cover. If that's too tricky, try Observing Conditions instead.

Overall

Occurrence of each ForecastData
Points
Cloud CoverDay
8%5%2443445%7%53%
75026
Night
8%42332345%7%58%
75132
TransparencyDay
31%6%10%20%21%11%
74751
Night
26%6%11%21%22%13%
74927
SeeingDay
10%8%25%33%20%5%
13772
Night
10%7%32%38%12%1
23879

By Month

Percentage Cloud Cover SE (2006-)
Color Meanings:
Overcast 90% covered 80% covered 70% covered 60% covered 50% covered 40% covered 30% covered 20% covered 10% covered Clear
MonthDays in MonthOccurrence of each ForecastData
Points
January1st to 10thDay
10%5%24323335%59%
1707
11th to 20thDay
12%6%2432345%6%54%
1752
21st to endDay
9%5%24423445%57%
2080
February1st to 10thDay
11%6%24424346%54%
1800
11th to 20thDay
12%6%245%24446%51%
1749
21st to endDay
11%424324446%56%
1480
March1st to 10thDay
12%6%25%5%2445%6%48%
1854
11th to 20thDay
11%6%25%5%24446%52%
1980
21st to endDay
10%5%23433445%56%
2178
April1st to 10thDay
9%5%3442335%8%52%
1981
11th to 20thDay
11%5%35%5%34347%51%
2134
21st to endDay
9%5%24434345%56%
2192
May1st to 10thDay
10%6%245%346%6%8%46%
2340
11th to 20thDay
11%6%36%4345%5%7%45%
2302
21st to endDay
9%6%36%6%345%6%8%43%
2531
June1st to 10thDay
4214435%46%8%58%
2340
11th to 20thDay
3213435%6%6%10%57%
2340
21st to endDay
6%3245%46%6%8%9%47%
2340
July1st to 10thDay
7%426%6%5%6%7%7%9%41%
2340
11th to 20thDay
3213435%5%6%9%59%
2340
21st to endDay
3213435%5%7%10%57%
2546
August1st to 10thDay
2113325%45%8%66%
2163
11th to 20thDay
5%425%5%35%6%5%9%50%
2123
21st to endDay
5%425%7%37%6%6%8%48%
2376
September1st to 10thDay
9%425%5%45%46%7%48%
1984
11th to 20thDay
10%6%35%5%35%5%5%7%46%
1980
21st to endDay
9%3245%2446%7%53%
1980
October1st to 10thDay
5%42442446%7%58%
1980
11th to 20thDay
11%5%24423446%57%
1957
21st to endDay
10%424323245%62%
1980
November1st to 10thDay
11%6%2432345%7%55%
1771
11th to 20thDay
7%5%2433445%6%59%
1710
21st to endDay
11%7%24433247%53%
1710
December1st to 10thDay
12%6%23423338%53%
1710
11th to 20thDay
11%5%25%434445%52%
2161
21st to endDay
10%6%2342234461%
3135
January1st to 10thNight
10%6%23323335%59%
2458
11th to 20thNight
11%5%23323346%57%
2445
21st to endNight
12%5%24323347%54%
2502
February1st to 10thNight
9%6%25%323347%56%
2160
11th to 20thNight
13%5%23323346%56%
2098
21st to endNight
10%5%23425%45%7%54%
1776
March1st to 10thNight
10%5%244235%6%8%51%
2105
11th to 20thNight
10%4244346%45%52%
1980
21st to endNight
7%42333445%8%58%
2178
April1st to 10thNight
6%423335%45%8%57%
1973
11th to 20thNight
9%6%2443345%6%55%
1777
21st to endNight
9%323323346%61%
1764
May1st to 10thNight
7%4234245%5%10%54%
1620
11th to 20thNight
9%43442446%9%50%
1593
21st to endNight
7%4245%235%5%11%51%
1745
June1st to 10thNight
121322347%11%63%
1620
11th to 20thNight
211232347%9%66%
1620
21st to endNight
42234235%6%10%60%
1620
July1st to 10thNight
4324435%6%7%11%50%
1620
11th to 20thNight
2122234410%70%
1620
21st to endNight
221231337%10%66%
1772
August1st to 10thNight
2111222347%76%
1772
11th to 20thNight
44234345%7%10%54%
1778
21st to endNight
42244345%7%10%54%
1980
September1st to 10thNight
6%325%43447%8%55%
1975
11th to 20thNight
9%3244345%6%9%50%
1980
21st to endNight
7%42342446%8%56%
1980
October1st to 10thNight
5%312323349%66%
1980
11th to 20thNight
10%314323445%60%
1984
21st to endNight
10%42332333463%
2376
November1st to 10thNight
10%323423346%61%
2303
11th to 20thNight
7%41332445%6%61%
2470
21st to endNight
11%5%245%24446%53%
2470
December1st to 10thNight
10%5%2331345%6%57%
2470
11th to 20thNight
11%6%345%3445%6%51%
3036
21st to endNight
10%5%24323246%59%
4532

Transparency (when cloud cover <= 30%)
Color Meanings:
Too cloudy to forecast Poor Below Average Average Above average Transparent
MonthDays in MonthOccurrence of each ForecastData
Points
January1st to 10thDay
29%35%18%27%17%
1708
11th to 20thDay
33%35%16%26%17%
1752
21st to endDay
31%47%12%27%18%
2080
February1st to 10thDay
31%5%8%13%22%21%
1800
11th to 20thDay
34%47%18%20%17%
1759
21st to endDay
30%47%15%25%20%
1480
March1st to 10thDay
36%5%8%16%19%15%
1854
11th to 20thDay
35%5%8%16%18%19%
1980
21st to endDay
31%6%8%16%22%17%
2178
April1st to 10thDay
32%5%9%19%20%15%
1981
11th to 20thDay
34%6%7%16%22%15%
2134
21st to endDay
33%5%7%20%22%14%
2192
May1st to 10thDay
36%6%10%15%22%10%
2340
11th to 20thDay
38%8%10%20%20%4
2306
21st to endDay
38%8%12%21%18%3
2531
June1st to 10thDay
23%7%14%30%22%4
2340
11th to 20thDay
23%7%15%27%22%6%
2340
21st to endDay
30%11%13%23%18%6%
2340
July1st to 10thDay
36%11%16%25%11%1
2276
11th to 20thDay
21%7%17%28%23%4
2271
21st to endDay
20%8%24%33%14%1
2405
August1st to 10thDay
17%6%13%40%22%2
2149
11th to 20thDay
31%8%14%29%13%4
2123
21st to endDay
31%9%15%26%15%4
2376
September1st to 10thDay
35%8%11%20%18%8%
1984
11th to 20thDay
39%8%11%19%18%5%
1980
21st to endDay
30%7%12%22%20%11%
1980
October1st to 10thDay
24%8%11%22%25%10%
1980
11th to 20thDay
30%5%8%15%24%18%
1957
21st to endDay
27%5%5%17%28%20%
1980
November1st to 10thDay
30%5%10%21%22%12%
1771
11th to 20thDay
27%7%8%18%23%18%
1710
21st to endDay
34%45%17%24%15%
1710
December1st to 10thDay
32%48%19%26%11%
1710
11th to 20thDay
34%5%8%12%23%18%
2159
21st to endDay
29%45%16%28%20%
3135
January1st to 10thNight
29%35%15%26%21%
2458
11th to 20thNight
30%46%18%24%19%
2445
21st to endNight
33%46%14%24%20%
2502
February1st to 10thNight
31%5%8%13%22%21%
2160
11th to 20thNight
31%46%17%22%19%
2098
21st to endNight
30%6%7%14%22%21%
1776
March1st to 10thNight
31%6%10%17%22%13%
2105
11th to 20thNight
34%6%8%15%18%19%
1980
21st to endNight
26%6%12%20%19%17%
2178
April1st to 10thNight
27%6%11%21%17%18%
1973
11th to 20thNight
29%6%12%16%20%17%
1777
21st to endNight
26%6%10%23%23%12%
1764
May1st to 10thNight
28%8%12%21%20%11%
1620
11th to 20thNight
30%8%13%25%18%5%
1594
21st to endNight
28%10%16%27%16%2
1746
June1st to 10thNight
14%8%18%33%24%3
1620
11th to 20thNight
15%7%18%30%23%7%
1620
21st to endNight
22%8%17%29%20%6%
1620
July1st to 10thNight
26%12%22%28%11%2
1575
11th to 20thNight
13%7%18%32%27%4
1566
21st to endNight
11%6%26%40%16%1
1673
August1st to 10thNight
10%6%18%41%24%1
1762
11th to 20thNight
24%9%18%29%16%3
1778
21st to endNight
24%9%22%26%15%3
1980
September1st to 10thNight
26%8%13%25%20%8%
1975
11th to 20thNight
29%10%18%21%17%5%
1980
21st to endNight
27%6%13%21%20%12%
1980
October1st to 10thNight
17%7%14%27%22%12%
1980
11th to 20thNight
26%5%10%17%24%18%
1984
21st to endNight
27%47%16%23%23%
2376
November1st to 10thNight
25%6%9%19%26%15%
2303
11th to 20thNight
23%5%10%21%22%18%
2470
21st to endNight
33%5%8%15%23%16%
2470
December1st to 10thNight
29%5%10%19%24%14%
2470
11th to 20thNight
34%6%6%14%20%20%
3037
21st to endNight
28%45%15%29%19%
4532

Seeing (when cloud cover <= 80%)
Color Meanings:
Too cloudy to forecast Bad 1/5 Poor 2/5 Average 3/5 Good 4/5 Excellent 5/5
MonthDays in MonthOccurrence of each ForecastData
Points
January1st to 10thDay
13%14%43%23%6%1
270
11th to 20thDay
17%14%31%28%8%1
270
21st to endDay
11%15%44%23%7%
294
February1st to 10thDay
18%14%39%20%9%1
240
11th to 20thDay
20%15%40%23%3
240
21st to endDay
17%14%48%19%3
198
March1st to 10thDay
15%19%41%23%3
240
11th to 20thDay
15%16%41%20%8%
240
21st to endDay
15%16%49%13%6%1
264
April1st to 10thDay
15%18%41%25%1
241
11th to 20thDay
13%21%41%21%3
412
21st to endDay
10%20%42%23%5%
452
May1st to 10thDay
12%10%44%29%5%
603
11th to 20thDay
16%7%35%31%10%2
625
21st to endDay
10%7%32%38%11%1
679
June1st to 10thDay
3320%48%22%3
630
11th to 20thDay
3125%50%19%3
630
21st to endDay
3117%45%29%5%
630
July1st to 10thDay
6%210%37%36%8%
621
11th to 20thDay
25%45%41%6%
618
21st to endDay
31440%40%12%
684
August1st to 10thDay
3438%44%11%
461
11th to 20thDay
6%17%33%38%14%
437
21st to endDay
6%15%32%39%17%
495
September1st to 10thDay
10%1425%40%20%
274
11th to 20thDay
7%7%24%42%20%
270
21st to endDay
14%3334%33%13%
270
October1st to 10thDay
5%313%34%39%6%
270
11th to 20thDay
11%424%38%19%3
270
21st to endDay
16%12%27%28%15%2
297
November1st to 10thDay
17%7%29%33%12%2
270
11th to 20thDay
16%11%30%25%12%6%
270
21st to endDay
19%19%32%20%9%2
270
December1st to 10thDay
15%9%29%36%9%3
270
11th to 20thDay
14%17%34%26%8%1
270
21st to endDay
13%13%38%27%8%
297
January1st to 10thNight
14%8%38%31%8%
950
11th to 20thNight
14%10%37%33%7%
925
21st to endNight
16%9%39%29%7%
834
February1st to 10thNight
13%12%40%31%4
720
11th to 20thNight
17%13%42%26%2
704
21st to endNight
13%17%47%22%1
592
March1st to 10thNight
13%15%46%23%3
665
11th to 20thNight
13%10%45%29%4
540
21st to endNight
7%14%54%24%2
594
April1st to 10thNight
6%13%55%24%2
540
11th to 20thNight
10%12%54%23%1
533
21st to endNight
9%11%54%21%5%
540
May1st to 10thNight
8%12%50%27%3
540
11th to 20thNight
10%7%42%33%8%
531
21st to endNight
8%6%43%34%9%
584
June1st to 10thNight
2134%49%14%
540
11th to 20thNight
2139%49%9%
540
21st to endNight
3222%52%20%1
540
July1st to 10thNight
5%111%57%24%2
525
11th to 20thNight
213%62%22%1
522
21st to endNight
217%63%26%2
591
August1st to 10thNight
16%66%25%1
537
11th to 20thNight
416%54%31%3
534
21st to endNight
418%47%35%5%
594
September1st to 10thNight
6%110%48%32%3
540
11th to 20thNight
9%19%46%34%1
540
21st to endNight
9%112%48%28%1
540
October1st to 10thNight
5%117%52%24%
540
11th to 20thNight
10%426%44%15%1
544
21st to endNight
11%9%30%33%15%1
792
November1st to 10thNight
12%5%29%40%14%1
823
11th to 20thNight
9%7%34%35%14%1
950
21st to endNight
13%10%34%31%10%1
950
December1st to 10thNight
13%7%32%38%9%
950
11th to 20thNight
16%10%35%35%5%
950
21st to endNight
12%11%38%33%6%
1045
Page generated at 2024-01-28 04:26:35. Version ac07

Copyright 2024 Attilla Danko


Aguila Vista Lodge Clear Sky Chart |Charts Home