Kincardine
Clear Sky Chart
History

This sumarizes the distribution of each different forecast outcome for the Kincardine clear sky chart from 2005-11-05 to 2017-08-12.

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
31%
15105
11%
46394
8%
15066
34%
15066
14%
35104

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
8%
898
2%
2577
0%
895
10%
895
4%
2323
January16th to endNight
11%
807
3%
2535
2%
807
13%
807
4%
2275
February1st to 15thNight
13%
701
3%
2287
1%
701
16%
701
5%
1996
February16th to endNight
20%
631
7%
1952
3%
631
24%
631
9%
1592
March1st to 15thNight
23%
720
11%
2031
7%
720
27%
720
13%
1603
March16th to endNight
33%
768
17%
2112
11%
768
38%
768
21%
1515
April1st to 15thNight
30%
650
14%
1806
7%
650
35%
650
20%
1306
April16th to endNight
39%
540
17%
1620
11%
540
43%
540
22%
1101
May1st to 15thNight
43%
540
16%
1620
12%
540
47%
540
24%
1081
May16th to endNight
50%
405
17%
1528
16%
405
56%
405
24%
907
June1st to 15thNight
49%
360
13%
1288
14%
360
55%
360
23%
777
June16th to endNight
53%
360
14%
1260
17%
360
57%
360
26%
767
July1st to 15thNight
65%
357
18%
1207
22%
357
68%
357
34%
656
July16th to endNight
62%
564
15%
1535
13%
531
64%
531
33%
921
August1st to 15thNight
62%
527
17%
1575
14%
524
65%
524
31%
976
August16th to endNight
59%
525
19%
1575
15%
525
61%
525
30%
959
September1st to 15thNight
53%
649
18%
1730
11%
649
56%
649
31%
1131
September16th to endNight
51%
657
18%
1815
13%
657
54%
657
28%
1208
October1st to 15thNight
37%
660
14%
1951
12%
660
40%
660
19%
1405
October16th to endNight
20%
704
6%
2161
3%
704
24%
704
9%
1778
November1st to 15thNight
26%
700
13%
2327
12%
700
30%
700
13%
1762
November16th to endNight
18%
720
7%
2520
6%
720
20%
720
6%
2131
December1st to 15thNight
8%
720
2%
2520
1%
720
9%
720
3%
2320
December16th to endNight
7%
942
2%
2862
0%
942
9%
942
4%
2614

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
16%10%47%5%24446%31%
47572
Night
18%12%6%9%6%34345%26%
46566
Cloud CoverDay
16%10%47%5%24446%31%
47582
Night
17%12%6%8%6%34345%26%
46570
TransparencyDay
53%5%12%18%9%
47263
Night
59%410%16%8%1
46394
SeeingDay
20%6%25%26%15%5%
5643
Night
23%9%26%27%11%1
15111

By Month

Percentage Cloud Cover NE (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
19%19%10%15%9%333139%
1361
16th to endDay
15%18%9%18%12%433236%
1687
February1st to 15thDay
14%18%10%15%11%3432313%
1575
16th to endDay
15%16%9%12%10%3443316%
1518
March1st to 15thDay
14%12%6%13%7%34445%24%
1916
16th to endDay
14%9%5%6%6%345%5%6%33%
2112
April1st to 15thDay
18%12%36%424446%32%
2151
16th to endDay
17%7%25%424348%39%
2340
May1st to 15thDay
16%7%345%24446%39%
2331
16th to endDay
13%6%145%23448%44%
2584
June1st to 15thDay
12%6%35%5%345%5%8%39%
2670
16th to endDay
12%5%245%3445%9%41%
2700
July1st to 15thDay
9%3233246%6%8%48%
2681
16th to endDay
9%42442446%10%45%
2525
August1st to 15thDay
10%6%25%42445%9%43%
2288
16th to endDay
11%5%24425%45%8%44%
2275
September1st to 15thDay
16%7%25%5%25%45%8%36%
1889
16th to endDay
18%6%2432335%8%40%
1815
October1st to 15thDay
24%8%36%5%23446%29%
1678
16th to endDay
35%13%46%5%3323417%
1708
November1st to 15thDay
19%17%45%5%35%445%24%
1531
16th to endDay
22%24%8%9%5%2422312%
1440
December1st to 15thDay
21%26%12%14%6%232224
1440
16th to endDay
20%25%11%13%6%333235%
1357
January1st to 15thNight
22%19%9%15%10%232336%
2577
16th to endNight
16%17%11%16%12%442238%
2535
February1st to 15thNight
14%19%9%15%10%4323312%
2285
16th to endNight
16%15%8%13%7%3444416%
1952
March1st to 15thNight
15%13%7%12%6%3434424%
2019
16th to endNight
16%11%5%7%5%2334434%
2112
April1st to 15thNight
22%9%345%23346%33%
1806
16th to endNight
17%7%35%5%34445%37%
1620
May1st to 15thNight
16%8%35%43445%7%37%
1620
16th to endNight
11%5%25%5%34446%45%
1526
June1st to 15thNight
14%5%35%425%5%6%8%38%
1288
16th to endNight
12%5%24425%45%9%41%
1260
July1st to 15thNight
8%42342435%7%52%
1278
16th to endNight
9%423425%46%9%45%
1641
August1st to 15thNight
9%425%4345%5%7%45%
1586
16th to endNight
10%5%26%5%34446%47%
1575
September1st to 15thNight
15%5%36%43345%5%42%
1730
16th to endNight
16%5%26%434445%42%
1815
October1st to 15thNight
21%8%37%5%2445%6%30%
1951
16th to endNight
31%13%47%5%34345%16%
2161
November1st to 15thNight
22%13%47%5%24446%22%
2327
16th to endNight
26%23%8%8%42222414%
2520
December1st to 15thNight
23%24%12%13%5%232227%
2520
16th to endNight
21%24%13%13%6%223226%
2862

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 15thDay
18%18%10%15%9%343339%
1361
16th to endDay
14%18%9%18%13%443337%
1687
February1st to 15thDay
14%18%10%15%10%3432312%
1575
16th to endDay
15%17%9%12%9%2443415%
1518
March1st to 15thDay
14%12%7%12%7%33435%24%
1927
16th to endDay
15%9%5%6%6%25%5%45%33%
2111
April1st to 15thDay
19%12%46%423445%32%
2151
16th to endDay
17%8%34324448%38%
2340
May1st to 15thDay
17%7%245%23447%38%
2331
16th to endDay
14%5%25%423348%45%
2584
June1st to 15thDay
13%5%25%5%3445%8%39%
2670
16th to endDay
13%5%25%5%3446%7%42%
2700
July1st to 15thDay
9%423225%6%6%8%47%
2681
16th to endDay
10%42342447%10%45%
2525
August1st to 15thDay
11%6%15%43446%9%42%
2288
16th to endDay
12%5%245%245%5%8%43%
2275
September1st to 15thDay
16%8%35%42445%7%36%
1889
16th to endDay
18%6%25%32345%8%38%
1815
October1st to 15thDay
23%9%36%5%23346%30%
1678
16th to endDay
34%14%36%5%33335%17%
1708
November1st to 15thDay
18%16%5%5%5%25%445%24%
1531
16th to endDay
22%23%8%10%5%3432412%
1440
December1st to 15thDay
20%24%12%17%6%232225%
1440
16th to endDay
20%25%12%12%7%233236%
1357
January1st to 15thNight
21%18%9%14%10%233338%
2577
16th to endNight
16%17%10%16%11%442338%
2535
February1st to 15thNight
14%19%8%15%11%4323313%
2278
16th to endNight
15%15%8%15%7%34445%16%
1952
March1st to 15thNight
15%13%7%12%6%24445%23%
2031
16th to endNight
16%10%6%6%43433435%
2112
April1st to 15thNight
22%10%445%23347%32%
1806
16th to endNight
17%7%35%5%44445%37%
1620
May1st to 15thNight
17%6%35%42445%7%37%
1619
16th to endNight
11%5%25%434447%44%
1526
June1st to 15thNight
14%5%25%5%345%6%9%38%
1288
16th to endNight
13%5%14426%449%41%
1260
July1st to 15thNight
8%42332445%7%52%
1278
16th to endNight
9%4235%25%5%6%9%45%
1641
August1st to 15thNight
10%425%4345%6%8%44%
1586
16th to endNight
10%5%245%34446%47%
1575
September1st to 15thNight
15%5%25%5%3435%6%42%
1730
16th to endNight
16%6%25%424436%43%
1815
October1st to 15thNight
21%7%36%6%33446%31%
1951
16th to endNight
31%12%46%6%33435%18%
2161
November1st to 15thNight
21%14%45%5%34446%23%
2327
16th to endNight
25%22%8%9%42232415%
2520
December1st to 15thNight
21%25%12%13%5%233127%
2520
16th to endNight
21%22%13%13%5%233336%
2862

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
81%37%6%1
1362
16th to endDay
83%37%41
1687
February1st to 15thDay
78%38%9%1
1577
16th to endDay
71%410%9%4
1518
March1st to 15thDay
63%5%10%13%6%
1927
16th to endDay
51%5%12%18%10%1
2112
April1st to 15thDay
53%5%9%20%10%
2151
16th to endDay
44%412%21%14%2
2340
May1st to 15thDay
45%49%24%14%
2331
16th to endDay
38%414%23%15%2
2588
June1st to 15thDay
41%5%13%25%13%
2670
16th to endDay
39%7%14%25%12%
2700
July1st to 15thDay
31%7%15%26%16%2
2523
16th to endDay
33%7%16%27%14%1
2369
August1st to 15thDay
38%7%15%24%12%1
2275
16th to endDay
37%7%14%28%11%1
2275
September1st to 15thDay
46%6%13%24%8%
1889
16th to endDay
43%5%15%25%9%
1815
October1st to 15thDay
55%410%18%10%1
1678
16th to endDay
71%311%9%3
1708
November1st to 15thDay
61%5%11%14%7%
1531
16th to endDay
78%29%7%1
1440
December1st to 15thDay
87%35%2
1440
16th to endDay
85%36%4
1357
January1st to 15thNight
82%38%5%1
2577
16th to endNight
81%38%41
2535
February1st to 15thNight
78%38%8%
2287
16th to endNight
69%411%9%5%
1952
March1st to 15thNight
62%49%16%5%
2031
16th to endNight
53%29%20%11%1
2112
April1st to 15thNight
52%39%21%12%
1806
16th to endNight
47%48%18%18%2
1620
May1st to 15thNight
45%49%23%14%2
1620
16th to endNight
38%6%11%26%14%3
1528
June1st to 15thNight
40%5%12%25%14%2
1288
16th to endNight
40%413%23%16%1
1260
July1st to 15thNight
30%5%10%29%22%2
1207
16th to endNight
34%5%16%24%17%2
1535
August1st to 15thNight
36%6%14%27%13%1
1575
16th to endNight
36%5%11%29%14%1
1575
September1st to 15thNight
40%414%28%11%1
1730
16th to endNight
41%5%14%26%11%
1815
October1st to 15thNight
52%5%11%18%11%
1951
16th to endNight
69%412%10%3
2161
November1st to 15thNight
60%413%16%4
2327
16th to endNight
75%210%8%1
2520
December1st to 15thNight
84%46%31
2520
16th to endNight
83%38%3
2862

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
19%17%47%7%7%
78
16th to endDay
36%10%22%27%3
96
February1st to 15thDay
31%21%37%10%
90
16th to endDay
20%18%40%16%3
81
March1st to 15thDay
23%11%36%19%7%
217
16th to endDay
26%5%30%25%11%1
288
April1st to 15thDay
27%7%28%23%10%2
270
16th to endDay
24%7%30%19%12%5%
270
May1st to 15thDay
25%427%21%15%5%
288
16th to endDay
18%326%27%17%6%
331
June1st to 15thDay
15%5%25%32%17%2
465
16th to endDay
16%327%32%17%3
495
July1st to 15thDay
11%423%33%20%7%
475
16th to endDay
12%120%33%23%8%
385
August1st to 15thDay
14%118%28%22%13%
297
16th to endDay
14%213%31%23%14%
268
September1st to 15thDay
14%418%29%21%12%
255
16th to endDay
20%5%15%25%22%11%
254
October1st to 15thDay
23%9%20%29%14%3
255
16th to endDay
37%9%27%20%4
220
November1st to 15thDay
17%11%34%22%13%1
81
16th to endDay
28%20%30%18%3
60
December1st to 15thDay
45%20%25%10%
60
16th to endDay
42%20%37%
64
January1st to 15thNight
28%17%34%14%4
900
16th to endNight
24%12%34%22%5%
807
February1st to 15thNight
23%15%32%23%4
704
16th to endNight
23%12%31%26%6%
631
March1st to 15thNight
21%13%33%24%6%
720
16th to endNight
20%8%29%28%11%1
768
April1st to 15thNight
26%9%29%27%6%
650
16th to endNight
22%6%25%31%12%2
540
May1st to 15thNight
20%424%33%15%1
540
16th to endNight
14%323%39%17%1
406
June1st to 15thNight
16%323%38%16%1
360
16th to endNight
15%321%38%20%1
360
July1st to 15thNight
10%17%43%23%3
357
16th to endNight
10%116%41%26%3
564
August1st to 15thNight
11%114%38%30%2
527
16th to endNight
15%115%32%29%5%
525
September1st to 15thNight
16%419%33%17%8%
649
16th to endNight
17%419%34%18%5%
657
October1st to 15thNight
25%6%23%27%15%1
660
16th to endNight
38%9%25%22%3
704
November1st to 15thNight
28%11%27%21%10%1
700
16th to endNight
37%13%22%21%4
720
December1st to 15thNight
35%16%30%14%2
720
16th to endNight
32%13%33%16%3
942
Page generated at 2017-08-13 14:16:42. Version ac04

Copyright 2017 A. Danko


Kincardine Clear Sky Chart | Charts Home