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 2018-02-14.

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%
15865
11%
48735
8%
15826
34%
15826
14%
36982

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
9%
973
2%
2793
0%
970
10%
970
4%
2521
January16th to endNight
10%
874
3%
2746
2%
874
12%
874
5%
2457
February1st to 15thNight
14%
757
3%
2468
1%
757
17%
757
5%
2155
February16th to endNight
21%
631
7%
1952
3%
631
25%
631
9%
1592
March1st to 15thNight
24%
720
11%
2031
7%
720
27%
720
13%
1603
March16th to endNight
33%
768
17%
2112
11%
768
37%
768
21%
1515
April1st to 15thNight
30%
650
14%
1806
6%
650
35%
650
20%
1306
April16th to endNight
39%
540
17%
1620
11%
540
43%
540
22%
1101
May1st to 15thNight
42%
540
16%
1620
12%
540
46%
540
24%
1081
May16th to endNight
49%
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
54%
360
14%
1260
17%
360
58%
360
26%
767
July1st to 15thNight
64%
357
18%
1207
22%
357
67%
357
34%
656
July16th to endNight
62%
564
15%
1535
13%
531
63%
531
33%
921
August1st to 15thNight
63%
539
17%
1609
13%
536
65%
536
31%
999
August16th to endNight
58%
573
20%
1719
15%
573
61%
573
30%
1046
September1st to 15thNight
54%
708
18%
1887
11%
708
56%
708
32%
1216
September16th to endNight
52%
717
20%
1980
15%
717
55%
717
29%
1301
October1st to 15thNight
36%
720
13%
2129
12%
720
39%
720
19%
1532
October16th to endNight
20%
768
7%
2358
4%
768
24%
768
10%
1928
November1st to 15thNight
25%
760
12%
2526
11%
760
28%
760
12%
1942
November16th to endNight
17%
780
6%
2730
6%
780
19%
780
6%
2302
December1st to 15thNight
8%
780
1%
2730
1%
780
9%
780
3%
2515
December16th to endNight
7%
1021
2%
3101
0%
1021
9%
1021
4%
2842

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%6%24446%31%
49334
Night
18%12%6%9%6%34345%26%
48907
Cloud CoverDay
16%10%47%5%24446%31%
49344
Night
17%12%6%9%6%34345%26%
48911
TransparencyDay
53%5%11%18%9%
49025
Night
59%410%15%8%
48735
SeeingDay
20%6%25%25%15%5%
6222
Night
23%9%26%27%11%1
15871

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%18%9%15%10%443139%
1475
16th to endDay
15%18%9%17%12%443337%
1828
February1st to 15thDay
15%18%9%15%11%3432312%
1695
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%
2340
16th to endDay
12%5%24425%5%48%43%
2483
September1st to 15thDay
16%7%25%42445%8%38%
2060
16th to endDay
18%5%2432345%7%40%
1980
October1st to 15thDay
24%8%36%5%23446%30%
1830
16th to endDay
34%13%46%5%3323419%
1863
November1st to 15thDay
20%17%46%5%34445%23%
1662
16th to endDay
22%24%8%9%5%2432313%
1560
December1st to 15thDay
20%27%12%15%5%232234
1560
16th to endDay
20%25%11%14%7%323235%
1470
January1st to 15thNight
22%18%9%15%10%332336%
2793
16th to endNight
16%17%10%16%11%442338%
2746
February1st to 15thNight
13%19%9%16%10%4333312%
2466
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%
1620
16th to endNight
10%5%26%5%34447%46%
1719
September1st to 15thNight
14%5%35%43345%5%44%
1887
16th to endNight
15%5%25%434446%42%
1980
October1st to 15thNight
21%7%37%5%2435%6%31%
2129
16th to endNight
31%13%47%5%34335%17%
2358
November1st to 15thNight
22%14%48%5%34446%21%
2526
16th to endNight
25%23%7%8%42222414%
2730
December1st to 15thNight
22%24%12%14%5%232227%
2730
16th to endNight
20%23%13%13%7%223226%
3101

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%10%443339%
1475
16th to endDay
14%18%9%17%13%443338%
1828
February1st to 15thDay
14%19%9%15%11%3432311%
1695
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%42446%9%42%
2340
16th to endDay
13%5%245%245%5%8%42%
2483
September1st to 15thDay
15%8%35%43445%7%38%
2060
16th to endDay
17%6%25%32345%7%39%
1980
October1st to 15thDay
23%9%36%5%33346%30%
1830
16th to endDay
33%13%37%5%33335%18%
1863
November1st to 15thDay
19%16%5%6%5%25%44423%
1662
16th to endDay
21%23%8%10%43433412%
1560
December1st to 15thDay
19%25%12%17%6%232225%
1560
16th to endDay
20%24%11%13%9%233236%
1470
January1st to 15thNight
21%18%9%14%11%343337%
2793
16th to endNight
15%16%10%16%11%45%3349%
2746
February1st to 15thNight
13%19%8%15%12%4323312%
2459
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%5%345%6%8%44%
1620
16th to endNight
10%5%25%5%34447%47%
1719
September1st to 15thNight
14%5%25%42435%6%44%
1887
16th to endNight
14%5%25%4245%46%43%
1980
October1st to 15thNight
21%7%36%6%33346%31%
2129
16th to endNight
31%12%46%5%33435%18%
2358
November1st to 15thNight
21%15%46%5%34446%22%
2526
16th to endNight
25%22%7%9%42232415%
2730
December1st to 15thNight
20%26%12%13%5%233127%
2730
16th to endNight
20%22%12%13%7%233336%
3101

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
82%36%6%1
1476
16th to endDay
83%37%41
1828
February1st to 15thDay
79%37%8%
1697
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
37%7%15%24%12%1
2327
16th to endDay
38%7%14%26%11%1
2483
September1st to 15thDay
45%6%12%24%9%1
2060
16th to endDay
42%5%14%27%9%
1980
October1st to 15thDay
55%310%19%9%1
1830
16th to endDay
70%311%10%4
1863
November1st to 15thDay
62%5%11%13%6%
1662
16th to endDay
77%29%7%1
1560
December1st to 15thDay
87%35%2
1560
16th to endDay
85%36%3
1470
January1st to 15thNight
81%38%5%1
2793
16th to endNight
80%48%41
2746
February1st to 15thNight
78%48%8%
2468
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
1609
16th to endNight
36%5%12%29%14%1
1719
September1st to 15thNight
39%413%28%13%1
1887
16th to endNight
40%5%14%27%11%
1980
October1st to 15thNight
52%5%10%19%10%
2129
16th to endNight
68%412%10%3
2358
November1st to 15thNight
62%413%14%4
2526
16th to endNight
75%310%8%1
2730
December1st to 15thNight
85%36%31
2730
16th to endNight
83%38%3
3101

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
20%17%42%13%5%
117
16th to endDay
31%11%30%23%2
144
February1st to 15thDay
30%20%37%11%
130
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
15%117%30%22%13%
313
16th to endDay
16%313%29%23%13%
332
September1st to 15thDay
13%418%28%23%12%
315
16th to endDay
18%5%15%23%24%12%
314
October1st to 15thDay
24%7%22%26%13%4
315
16th to endDay
36%10%29%20%4
279
November1st to 15thDay
25%13%31%18%9%
122
16th to endDay
28%21%31%15%12
90
December1st to 15thDay
40%16%30%13%
90
16th to endDay
36%19%35%8%
96
January1st to 15thNight
27%16%34%15%4
975
16th to endNight
23%12%35%22%5%
874
February1st to 15thNight
23%15%32%23%4
760
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%115%39%30%2
539
16th to endNight
14%116%32%29%5%
573
September1st to 15thNight
15%418%32%18%9%
708
16th to endNight
16%419%33%20%5%
717
October1st to 15thNight
25%6%24%27%15%1
720
16th to endNight
38%9%25%22%3
768
November1st to 15thNight
29%11%26%21%9%1
760
16th to endNight
37%14%23%20%4
780
December1st to 15thNight
34%16%31%15%2
780
16th to endNight
31%13%34%16%3
1021
Page generated at 2018-02-15 10:58:47. Version ac04

Copyright 2018 A. Danko


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