Teutonia Peak
Clear Sky Chart
History

This sumarizes the distribution of each different forecast outcome for the Teutonia Peak clear sky chart from 2005-11-05 to 2018-11-30.

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
67%
17603
37%
51789
28%
17564
76%
17564
54%
24247

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 15thNight
57%
778
32%
2522
24%
776
70%
776
41%
1250
January16th to endNight
54%
832
35%
2632
25%
832
69%
832
41%
1323
February1st to 15thNight
59%
757
36%
2292
28%
757
71%
757
48%
1119
February16th to endNight
54%
684
35%
2051
30%
684
65%
684
42%
1057
March1st to 15thNight
57%
780
32%
2291
26%
780
69%
780
44%
1164
March16th to endNight
59%
832
33%
2288
22%
832
69%
832
47%
1181
April1st to 15thNight
49%
779
35%
1952
15%
779
61%
779
49%
1034
April16th to endNight
56%
704
39%
1862
17%
704
68%
704
60%
872
May1st to 15thNight
61%
585
38%
1754
24%
584
70%
584
61%
749
May16th to endNight
63%
609
35%
1829
23%
609
71%
609
62%
759
June1st to 15thNight
72%
585
34%
1755
27%
585
77%
585
68%
712
June16th to endNight
78%
585
36%
1755
30%
585
83%
585
82%
654
July1st to 15thNight
85%
555
30%
1665
26%
555
87%
555
62%
732
July16th to endNight
82%
612
31%
1737
27%
579
83%
579
50%
870
August1st to 15thNight
87%
658
39%
1803
28%
655
89%
655
68%
813
August16th to endNight
87%
828
41%
2070
28%
828
89%
828
71%
999
September1st to 15thNight
85%
780
39%
2070
29%
780
88%
780
64%
998
September16th to endNight
81%
776
47%
2145
37%
776
89%
776
78%
888
October1st to 15thNight
75%
780
43%
2145
34%
780
83%
780
63%
994
October16th to endNight
74%
832
43%
2537
36%
832
85%
832
61%
1084
November1st to 15thNight
69%
820
40%
2665
35%
820
80%
820
58%
1131
November16th to endNight
68%
840
39%
2730
36%
840
77%
840
50%
1233
December1st to 15thNight
60%
780
34%
2535
27%
780
72%
780
42%
1232
December16th to endNight
54%
832
35%
2704
28%
832
67%
832
37%
1399

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
1112313346%70%
52518
Night
1112313346%70%
51984
TransparencyDay
16%2415%27%32%
52213
Night
16%3416%28%31%
51790
SeeingDay
411%26%35%17%4
7298
Night
37%17%32%31%7%
17614

By Month

Percentage Cloud Cover SW (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 15thDay
2212312348%65%
1746
16th to endDay
3314323346%63%
1943
February1st to 15thDay
221332435%6%65%
1901
16th to endDay
24245%23346%60%
1709
March1st to 15thDay
2212312447%66%
1999
16th to endDay
121232435%7%65%
2288
April1st to 15thDay
2212323345%67%
2322
16th to endDay
112212335%75%
2373
May1st to 15thDay
111212245%75%
2526
16th to endDay
1212212235%73%
2637
June1st to 15thDay
112235%80%
2535
16th to endDay
111211286%
2535
July1st to 15thDay
32332445%6%63%
2535
16th to endDay
3314335%5%47%56%
2675
August1st to 15thDay
1112323345%70%
2398
16th to endDay
212223446%68%
2484
September1st to 15thDay
111313446%71%
2220
16th to endDay
121213481%
2145
October1st to 15thDay
211222223474%
2145
16th to endDay
11212235%78%
2037
November1st to 15thDay
1112211335%73%
1854
16th to endDay
2112213347%68%
1884
December1st to 15thDay
231442335%8%61%
1755
16th to endDay
3225%324447%58%
1872
January1st to 15thNight
12134245%5%6%62%
2522
16th to endNight
33332445%6%62%
2632
February1st to 15thNight
2213323337%65%
2281
16th to endNight
2413413445%62%
2051
March1st to 15thNight
11133145%6%8%61%
2291
16th to endNight
1113324449%63%
2288
April1st to 15thNight
1113323245%68%
1952
16th to endNight
11212335%75%
1862
May1st to 15thNight
11212246%75%
1754
16th to endNight
11212235%78%
1828
June1st to 15thNight
1111122481%
1755
16th to endNight
111389%
1755
July1st to 15thNight
11231235%6%70%
1755
16th to endNight
43122235%6%7%61%
1845
August1st to 15thNight
1123435%75%
1812
16th to endNight
11212245%75%
2070
September1st to 15thNight
1112323335%74%
2070
16th to endNight
112287%
2145
October1st to 15thNight
11121323476%
2145
16th to endNight
1121223477%
2537
November1st to 15thNight
113212245%74%
2665
16th to endNight
1212213346%69%
2730
December1st to 15thNight
2212424447%63%
2535
16th to endNight
2324424347%58%
2704

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 15thDay
19%35%23%34%13%
1747
16th to endDay
24%26%20%29%15%
1943
February1st to 15thDay
20%35%18%29%22%
1901
16th to endDay
26%35%17%31%16%
1709
March1st to 15thDay
18%35%21%32%19%
1999
16th to endDay
19%26%22%32%16%
2288
April1st to 15thDay
20%2417%33%22%
2322
16th to endDay
13%2319%31%29%
2373
May1st to 15thDay
12%2317%31%33%
2526
16th to endDay
15%2311%34%33%
2640
June1st to 15thDay
8%228%20%57%
2535
16th to endDay
8%11412%72%
2535
July1st to 15thDay
19%349%16%46%
2396
16th to endDay
23%36%15%21%29%
2520
August1st to 15thDay
15%2310%24%43%
2383
16th to endDay
17%2311%26%38%
2484
September1st to 15thDay
14%3410%21%44%
2220
16th to endDay
8%118%30%48%
2145
October1st to 15thDay
15%2211%30%36%
2145
16th to endDay
11%2312%32%37%
2037
November1st to 15thDay
14%25%16%37%24%
1854
16th to endDay
16%45%18%30%24%
1884
December1st to 15thDay
22%47%20%24%20%
1755
16th to endDay
26%36%24%24%14%
1872
January1st to 15thNight
22%5%421%29%17%
2522
16th to endNight
23%36%21%24%21%
2632
February1st to 15thNight
20%36%19%28%22%
2292
16th to endNight
23%35%17%33%16%
2051
March1st to 15thNight
20%45%20%30%18%
2291
16th to endNight
20%37%22%30%16%
2288
April1st to 15thNight
18%3420%32%20%
1952
16th to endNight
12%1419%32%29%
1862
May1st to 15thNight
11%2418%34%28%
1755
16th to endNight
10%1416%36%29%
1829
June1st to 15thNight
9%128%22%55%
1755
16th to endNight
5%16%14%71%
1755
July1st to 15thNight
13%3413%17%49%
1665
16th to endNight
19%4417%23%29%
1737
August1st to 15thNight
11%2313%24%43%
1803
16th to endNight
11%2312%27%42%
2070
September1st to 15thNight
14%25%10%24%43%
2070
16th to endNight
6%118%30%51%
2145
October1st to 15thNight
12%2313%32%35%
2145
16th to endNight
11%2311%28%41%
2537
November1st to 15thNight
14%2316%36%26%
2665
16th to endNight
16%3317%29%28%
2730
December1st to 15thNight
21%46%17%29%20%
2535
16th to endNight
26%36%20%27%15%
2704

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 15thDay
11%14%28%34%10%
135
16th to endDay
9%15%25%29%16%4
215
February1st to 15thDay
316%37%24%12%3
326
16th to endDay
8%23%30%24%11%1
290
March1st to 15thDay
7%20%28%30%12%1
330
16th to endDay
6%18%37%26%8%2
352
April1st to 15thDay
10%21%31%23%8%3
329
16th to endDay
6%29%26%24%10%2
318
May1st to 15thDay
413%34%31%12%2
348
16th to endDay
412%35%32%12%3
394
June1st to 15thDay
18%34%34%16%4
375
16th to endDay
15%21%43%21%7%
375
July1st to 15thDay
3214%49%21%9%
365
16th to endDay
5%8%47%26%11%
391
August1st to 15thDay
1219%48%20%8%
359
16th to endDay
2217%43%25%8%
396
September1st to 15thDay
1325%46%19%3
375
16th to endDay
27%21%42%22%3
375
October1st to 15thDay
5%12%32%37%11%1
375
16th to endDay
27%23%34%25%5%
238
November1st to 15thDay
213%19%30%27%6%
180
16th to endDay
317%20%34%21%3
178
December1st to 15thDay
317%26%27%22%2
135
16th to endDay
8%13%21%29%20%6%
144
January1st to 15thNight
48%23%34%21%7%
780
16th to endNight
6%10%22%30%22%6%
832
February1st to 15thNight
47%22%34%24%6%
764
16th to endNight
7%11%23%33%19%5%
684
March1st to 15thNight
311%22%33%23%5%
780
16th to endNight
312%20%34%23%5%
832
April1st to 15thNight
316%24%27%21%5%
779
16th to endNight
213%24%31%22%5%
704
May1st to 15thNight
28%25%32%26%4
585
16th to endNight
110%21%32%30%3
611
June1st to 15thNight
15%18%39%30%3
585
16th to endNight
216%39%36%3
585
July1st to 15thNight
16%32%52%7%
555
16th to endNight
5%429%54%4
612
August1st to 15thNight
16%31%50%9%
658
16th to endNight
15%24%50%17%
828
September1st to 15thNight
117%27%47%14%
780
16th to endNight
1212%27%36%18%
776
October1st to 15thNight
25%13%42%28%6%
780
16th to endNight
16%13%31%33%13%
832
November1st to 15thNight
15%18%35%31%7%
820
16th to endNight
37%16%32%29%9%
840
December1st to 15thNight
5%9%20%33%26%5%
780
16th to endNight
6%12%21%32%20%6%
832
Page generated at 2018-12-01 08:35:33. Version ac04

Copyright 2018 A. Danko


Teutonia Peak Clear Sky Chart |Charts Home