Animal Park at the Conservators Center
Clear Sky Chart
History

This sumarizes the distribution of each different forecast outcome for the Animal Park at the Conservators Center clear sky chart from 2005-11-06 to 2024-11-28.

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
43%
25482
20%
97209
13%
25212
53%
25212
22%
58993

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
23%
754
27%
3982
9%
737
42%
737
16%
2107
January11th to 20thNight
25%
757
28%
3943
11%
740
42%
740
15%
2154
January21st to endNight
23%
831
18%
4454
12%
814
43%
814
16%
2629
February1st to 10thNight
27%
760
21%
2470
11%
760
41%
760
24%
1518
February11th to 20thNight
17%
740
20%
2389
7%
739
34%
739
20%
1512
February21st to endNight
24%
628
27%
1750
10%
628
40%
628
26%
1110
March1st to 10thNight
29%
758
20%
3405
12%
745
43%
745
15%
2372
March11th to 20thNight
27%
758
29%
3402
9%
740
39%
740
19%
1716
March21st to endNight
27%
833
15%
3689
9%
814
37%
814
19%
2037
April1st to 10thNight
30%
760
23%
1990
8%
760
41%
760
30%
1255
April11th to 20thNight
37%
751
25%
1875
10%
751
46%
751
35%
1189
April21st to endNight
41%
746
21%
1886
9%
746
46%
746
33%
1224
May1st to 10thNight
39%
564
18%
2800
8%
559
46%
559
16%
1691
May11th to 20thNight
45%
553
17%
2764
11%
541
50%
541
16%
1739
May21st to endNight
59%
601
14%
3028
12%
593
62%
593
22%
1451
June1st to 10thNight
62%
570
17%
1710
14%
570
65%
570
30%
1080
June11th to 20thNight
61%
570
16%
1710
13%
570
64%
570
30%
1073
June21st to endNight
67%
570
15%
1710
12%
570
69%
570
29%
1077
July1st to 10thNight
69%
539
13%
2728
13%
535
70%
535
16%
1755
July11th to 20thNight
71%
539
9%
2726
13%
533
73%
533
16%
1769
July21st to endNight
68%
610
11%
2913
13%
569
71%
569
15%
2088
August1st to 10thNight
64%
558
10%
2736
12%
545
66%
545
13%
1925
August11th to 20thNight
63%
566
14%
2563
15%
561
64%
561
18%
1488
August21st to endNight
69%
814
16%
2962
12%
814
69%
814
25%
1719
September1st to 10thNight
66%
760
25%
1900
18%
760
68%
760
34%
1253
September11th to 20thNight
59%
760
22%
2063
19%
760
61%
760
29%
1366
September21st to endNight
47%
760
18%
2109
14%
760
52%
760
24%
1474
October1st to 10thNight
53%
760
17%
2971
21%
740
59%
740
20%
2067
October11th to 20thNight
48%
760
26%
2406
23%
740
59%
740
29%
1461
October21st to endNight
48%
836
28%
2698
22%
814
62%
814
30%
1600
November1st to 10thNight
45%
780
28%
2341
19%
780
56%
780
32%
1385
November11th to 20thNight
40%
800
27%
2458
17%
800
52%
800
29%
1447
November21st to endNight
41%
789
28%
2622
18%
789
54%
789
31%
1457
December1st to 10thNight
29%
760
21%
2660
10%
760
43%
760
20%
1675
December11th to 20thNight
32%
760
26%
3010
15%
758
47%
758
23%
1743
December21st to endNight
31%
827
16%
4386
11%
817
44%
817
14%
2387

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
13%6%26%44446%8%43%
101063
Night
14%7%26%44445%7%44%
98411
TransparencyDay
38%6%12%22%17%5%
104713
Night
38%5%10%21%19%6%
102900
SeeingDay
16%8%23%25%19%8%
15380
Night
16%8%26%32%17%2
25635

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
18%6%14333345%51%
2836
11th to 20thDay
13%6%26%333345%52%
2840
21st to endDay
19%11%36%43433441%
3124
February1st to 10thDay
13%6%27%45%446%7%43%
1710
11th to 20thDay
20%7%25%443345%44%
1673
21st to endDay
19%9%26%44435%6%39%
1703
March1st to 10thDay
21%7%26%44325%7%38%
3435
11th to 20thDay
10%5%14434347%54%
3480
21st to endDay
20%7%16%433346%42%
3815
April1st to 10thDay
10%5%1333436%7%53%
2188
11th to 20thDay
11%5%25%44435%7%49%
2254
21st to endDay
14%5%25%445%35%7%45%
2309
May1st to 10thDay
11%7%38%6%6%5%48%9%34%
4082
11th to 20thDay
18%7%28%445%46%8%33%
4081
21st to endDay
7%425%45%5%47%11%47%
4476
June1st to 10thDay
9%5%25%5%5%5%6%7%11%41%
2470
11th to 20thDay
8%5%26%445%46%10%44%
2470
21st to endDay
7%426%6%5%6%5%7%10%42%
2470
July1st to 10thDay
7%5%27%5%6%6%6%9%10%37%
4120
11th to 20thDay
9%6%27%6%5%5%5%8%12%34%
4120
21st to endDay
10%8%49%6%6%7%5%8%9%28%
4466
August1st to 10thDay
17%8%38%5%5%5%5%8%10%26%
4104
11th to 20thDay
8%5%27%6%6%6%5%7%12%35%
3980
21st to endDay
6%425%44447%10%50%
4180
September1st to 10thDay
10%5%25%44446%8%48%
2280
11th to 20thDay
14%6%37%4445%5%7%42%
2112
21st to endDay
20%8%36%33336%7%38%
2070
October1st to 10thDay
15%5%25%333236%52%
1900
11th to 20thDay
13%42433425%5%55%
1900
21st to endDay
11%5%25%433235%57%
2090
November1st to 10thDay
13%6%25%333345%53%
1957
11th to 20thDay
13%5%2443335%6%52%
1939
21st to endDay
13%5%25%43436%7%49%
1704
December1st to 10thDay
16%7%26%44445%6%40%
1520
11th to 20thDay
15%5%24223346%55%
2081
21st to endDay
17%6%25%44445%8%41%
3124
January1st to 10thNight
14%7%25%34435%5%48%
4109
11th to 20thNight
14%8%25%43335%5%48%
4120
21st to endNight
18%8%26%433345%44%
4532
February1st to 10thNight
16%6%25%435%45%6%44%
2470
11th to 20thNight
19%7%25%423346%43%
2389
21st to endNight
14%7%24445%35%7%45%
1750
March1st to 10thNight
21%9%38%444345%36%
3418
11th to 20thNight
13%6%25%434346%52%
3480
21st to endNight
17%6%25%433346%48%
3817
April1st to 10thNight
12%7%25%44435%7%48%
1990
11th to 20thNight
12%5%25%44336%6%49%
1875
21st to endNight
12%5%25%5%45%46%6%46%
1886
May1st to 10thNight
11%8%37%5%4435%8%41%
2813
11th to 20thNight
18%9%37%343347%40%
2812
21st to endNight
8%5%25%33447%11%47%
3079
June1st to 10thNight
9%5%25%45%5%6%8%11%40%
1710
11th to 20thNight
8%5%27%6%5%446%12%42%
1710
21st to endNight
6%6%25%5%5%5%5%8%12%40%
1710
July1st to 10thNight
7%439%6%7%8%5%8%10%34%
2840
11th to 20thNight
10%7%38%5%5%6%5%7%10%34%
2840
21st to endNight
13%9%49%6%5%5%47%9%30%
3087
August1st to 10thNight
19%8%37%5%5%6%5%9%10%24%
2825
11th to 20thNight
8%5%26%5%6%5%5%7%10%41%
2816
21st to endNight
6%425%45%5%47%8%50%
3476
September1st to 10thNight
10%6%27%43446%8%46%
1900
11th to 20thNight
14%7%36%44445%7%43%
2063
21st to endNight
18%8%36%44445%5%39%
2109
October1st to 10thNight
15%6%25%444346%48%
2280
11th to 20thNight
13%6%24433345%55%
2280
21st to endNight
11%5%2434424457%
2508
November1st to 10thNight
14%6%25%433345%53%
2341
11th to 20thNight
13%6%25%44435%6%51%
2458
21st to endNight
13%425%33345%6%52%
2622
December1st to 10thNight
16%8%37%44435%5%42%
2660
11th to 20thNight
16%7%25%433345%49%
3104
21st to endNight
18%6%25%33345%8%43%
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
35%45%29%22%6%
2837
11th to 20thDay
36%36%19%31%5%
2840
21st to endDay
47%46%18%21%4
3124
February1st to 10thDay
40%5%10%21%20%5%
1710
11th to 20thDay
44%36%21%19%6%
1682
21st to endDay
45%5%11%15%18%6%
1703
March1st to 10thDay
46%5%8%20%14%8%
3435
11th to 20thDay
30%5%8%21%23%13%
3480
21st to endDay
44%49%20%19%3
3815
April1st to 10thDay
29%5%11%23%24%8%
2188
11th to 20thDay
34%5%12%21%22%7%
2254
21st to endDay
38%5%12%24%17%4
2309
May1st to 10thDay
44%8%16%20%10%2
4120
11th to 20thDay
46%7%11%24%9%1
4085
21st to endDay
30%7%18%24%19%3
4489
June1st to 10thDay
34%9%17%24%15%1
2470
11th to 20thDay
34%6%18%24%15%2
2470
21st to endDay
34%9%18%24%14%2
2470
July1st to 10thDay
39%9%20%18%11%4
4055
11th to 20thDay
41%7%24%21%5%1
4051
21st to endDay
50%9%14%18%10%
4324
August1st to 10thDay
51%6%19%19%5%
4091
11th to 20thDay
40%6%22%22%9%1
4019
21st to endDay
29%5%16%34%14%2
4180
September1st to 10thDay
34%8%15%20%19%5%
2280
11th to 20thDay
40%6%10%20%20%3
2112
21st to endDay
45%6%10%20%16%4
2070
October1st to 10thDay
35%36%20%26%10%
3160
11th to 20thDay
21%25%22%27%23%
3140
21st to endDay
24%29%26%25%14%
3428
November1st to 10thDay
34%47%22%26%7%
1957
11th to 20thDay
34%38%22%26%7%
1939
21st to endDay
34%49%23%26%5%
1704
December1st to 10thDay
43%6%10%19%18%4
1520
11th to 20thDay
32%38%24%25%8%
2078
21st to endDay
39%6%11%24%18%2
3124
January1st to 10thNight
36%5%7%21%26%5%
4109
11th to 20thNight
38%5%7%19%26%6%
4120
21st to endNight
44%46%21%20%7%
4532
February1st to 10thNight
40%5%9%22%20%5%
2470
11th to 20thNight
43%48%17%21%7%
2391
21st to endNight
39%410%21%19%7%
1750
March1st to 10thNight
51%5%7%15%17%4
3418
11th to 20thNight
33%5%6%16%25%15%
3480
21st to endNight
38%48%24%21%6%
3817
April1st to 10thNight
35%5%11%18%25%6%
1990
11th to 20thNight
34%49%23%22%7%
1875
21st to endNight
37%6%12%23%18%5%
1886
May1st to 10thNight
41%8%15%22%12%2
2840
11th to 20thNight
46%6%10%22%16%1
2813
21st to endNight
28%8%18%27%16%3
3087
June1st to 10thNight
35%9%17%22%15%1
1710
11th to 20thNight
35%8%17%24%14%2
1710
21st to endNight
34%10%18%21%14%3
1710
July1st to 10thNight
42%11%16%17%12%2
2795
11th to 20thNight
44%9%23%17%5%2
2786
21st to endNight
50%9%14%18%9%
2988
August1st to 10thNight
53%7%19%16%6%
2814
11th to 20thNight
37%6%21%26%10%1
2843
21st to endNight
31%6%12%30%20%2
3476
September1st to 10thNight
35%8%11%22%18%5%
1900
11th to 20thNight
40%7%11%18%21%3
2063
21st to endNight
47%6%10%18%15%4
2109
October1st to 10thNight
40%37%19%25%6%
3800
11th to 20thNight
24%36%22%28%18%
3779
21st to endNight
24%26%28%25%16%
4120
November1st to 10thNight
35%37%20%25%8%
2341
11th to 20thNight
36%47%18%26%10%
2458
21st to endNight
33%37%23%26%6%
2622
December1st to 10thNight
45%48%21%18%4
2660
11th to 20thNight
38%47%20%22%8%
3106
21st to endNight
39%48%24%22%2
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
26%17%36%16%5%
270
11th to 20thDay
23%21%35%15%5%
270
21st to endDay
22%18%41%16%3
297
February1st to 10thDay
19%17%42%17%5%
270
11th to 20thDay
35%17%35%9%4
270
21st to endDay
28%16%35%17%4
358
March1st to 10thDay
22%14%35%22%7%
460
11th to 20thDay
19%15%42%17%6%
460
21st to endDay
22%13%35%24%5%1
506
April1st to 10thDay
18%16%33%22%10%1
460
11th to 20thDay
13%18%27%26%12%4
452
21st to endDay
18%10%29%26%15%2
460
May1st to 10thDay
17%12%27%27%13%4
463
11th to 20thDay
15%6%20%30%22%7%
487
21st to endDay
15%318%25%28%10%
529
June1st to 10thDay
10%418%33%25%10%
490
11th to 20thDay
10%317%27%29%13%
490
21st to endDay
9%315%33%29%11%
490
July1st to 10thDay
10%37%28%34%19%
485
11th to 20thDay
6%29%26%39%18%
484
21st to endDay
9%211%32%32%14%
532
August1st to 10thDay
15%312%25%29%15%
486
11th to 20thDay
10%39%28%30%20%
479
21st to endDay
10%19%25%33%22%
539
September1st to 10thDay
14%113%24%30%19%
490
11th to 20thDay
17%410%24%29%16%
490
21st to endDay
28%317%30%17%6%
490
October1st to 10thDay
18%420%23%24%11%
490
11th to 20thDay
13%7%25%27%23%5%
490
21st to endDay
12%9%27%32%15%6%
539
November1st to 10thDay
18%7%29%27%16%4
495
11th to 20thDay
17%12%31%25%14%1
439
21st to endDay
12%16%29%26%14%2
257
December1st to 10thDay
23%12%40%18%6%2
180
11th to 20thDay
18%12%38%22%8%1
236
21st to endDay
22%15%33%18%11%2
297
January1st to 10thNight
20%13%38%23%5%
760
11th to 20thNight
19%13%38%26%5%
760
21st to endNight
19%12%42%24%3
836
February1st to 10thNight
19%13%38%26%4
760
11th to 20thNight
25%15%39%19%1
743
21st to endNight
18%14%39%25%4
628
March1st to 10thNight
17%15%35%29%5%
760
11th to 20thNight
20%14%35%24%7%
760
21st to endNight
18%11%39%27%5%
836
April1st to 10thNight
16%17%33%27%7%
760
11th to 20thNight
15%11%33%30%11%1
751
21st to endNight
14%6%34%38%8%
746
May1st to 10thNight
10%10%32%37%11%
570
11th to 20thNight
17%424%34%19%1
561
21st to endNight
14%114%39%28%4
617
June1st to 10thNight
11%117%42%26%2
570
11th to 20thNight
10%215%38%30%5%
570
21st to endNight
8%215%41%32%3
570
July1st to 10thNight
10%18%37%40%5%
555
11th to 20thNight
8%26%37%41%7%
552
21st to endNight
7%29%40%36%5%
624
August1st to 10thNight
14%27%41%31%5%
567
11th to 20thNight
12%210%34%37%5%
582
21st to endNight
11%37%35%37%8%
836
September1st to 10thNight
13%28%34%36%6%
760
11th to 20thNight
19%39%31%33%5%
760
21st to endNight
23%416%32%23%3
760
October1st to 10thNight
18%416%30%25%6%
760
11th to 20thNight
16%6%25%31%20%2
760
21st to endNight
13%8%26%34%17%2
836
November1st to 10thNight
16%7%25%33%16%2
780
11th to 20thNight
15%10%30%34%10%
800
21st to endNight
14%9%32%33%11%1
789
December1st to 10thNight
20%11%34%28%6%
760
11th to 20thNight
19%8%36%31%6%
760
21st to endNight
23%11%28%33%5%
836
Page generated at 2024-11-25 00:22:20. Version ac07

Copyright © 2024 Attilla Danko.


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