Kenosha
Clear Sky Chart
History

This sumarizes the distribution of each different forecast outcome for the Kenosha clear sky chart from 2005-11-06 to 2024-02-10.

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
39%
24770
16%
80462
11%
24665
45%
24665
21%
54638

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
18%
941
11%
4393
4%
926
27%
926
11%
3082
January11th to 20thNight
19%
949
7%
4411
4%
930
25%
930
8%
3467
January21st to endNight
18%
1040
6%
4840
3%
1023
24%
1023
8%
3718
February1st to 10thNight
22%
912
13%
2428
4%
912
28%
912
18%
1812
February11th to 20thNight
24%
700
17%
2099
7%
700
33%
700
19%
1430
February21st to endNight
20%
592
18%
1776
6%
592
32%
592
18%
1240
March1st to 10thNight
29%
720
13%
2160
6%
720
34%
720
19%
1528
March11th to 20thNight
37%
720
20%
2124
10%
720
46%
720
28%
1354
March21st to endNight
35%
594
15%
1980
12%
594
41%
594
17%
1390
April1st to 10thNight
36%
540
15%
1800
10%
540
43%
540
20%
1186
April11th to 20thNight
37%
533
20%
1775
16%
533
45%
533
19%
1192
April21st to endNight
43%
540
17%
1674
12%
540
48%
540
23%
1117
May1st to 10thNight
45%
540
14%
1620
11%
540
48%
540
22%
1123
May11th to 20thNight
49%
531
19%
1461
13%
531
53%
531
27%
989
May21st to endNight
56%
582
16%
1552
11%
582
58%
582
28%
1039
June1st to 10thNight
63%
540
17%
1440
13%
540
65%
540
37%
889
June11th to 20thNight
57%
540
19%
1440
14%
540
60%
540
35%
924
June21st to endNight
61%
540
17%
1440
12%
540
64%
540
33%
929
July1st to 10thNight
74%
525
17%
1400
13%
525
74%
525
41%
841
July11th to 20thNight
71%
522
21%
1392
16%
522
73%
522
42%
811
July21st to endNight
72%
591
22%
1487
18%
558
74%
558
43%
868
August1st to 10thNight
73%
537
22%
1462
20%
534
73%
534
41%
846
August11th to 20thNight
68%
534
22%
1718
22%
534
72%
534
37%
940
August21st to endNight
68%
594
23%
1980
23%
594
72%
594
35%
1076
September1st to 10thNight
60%
540
23%
1800
23%
540
64%
540
32%
1018
September11th to 20thNight
62%
643
32%
1903
27%
643
67%
643
38%
1092
September21st to endNight
50%
720
24%
1980
16%
720
55%
720
31%
1259
October1st to 10thNight
50%
720
22%
2016
16%
720
54%
720
31%
1262
October11th to 20thNight
31%
720
19%
2196
9%
720
42%
720
23%
1419
October21st to endNight
31%
792
15%
2574
11%
792
39%
792
19%
1752
November1st to 10thNight
33%
740
23%
2406
17%
740
45%
740
25%
1471
November11th to 20thNight
24%
760
17%
2470
9%
760
35%
760
17%
1674
November21st to endNight
25%
836
17%
2546
8%
836
35%
836
19%
1761
December1st to 10thNight
19%
950
10%
2660
3%
950
25%
950
14%
2005
December11th to 20thNight
21%
950
11%
3230
4%
948
28%
948
14%
2317
December21st to endNight
14%
1042
6%
4829
2%
1026
22%
1026
7%
3817

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%8%46%6%35%5%6%8%37%
78172
Night
15%9%47%5%345%5%7%36%
80848
TransparencyDay
46%5%14%23%11%1
77873
Night
49%413%22%11%2
80668
SeeingDay
15%7%25%30%18%5%
14759
Night
18%8%27%28%16%3
24793

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
13%13%7%9%6%4445%5%28%
2527
11th to 20thDay
12%12%7%12%6%4412%8%6%18%
2530
21st to endDay
18%18%8%9%6%34345%21%
2789
February1st to 10thDay
13%12%5%8%7%45%5%6%7%27%
1735
11th to 20thDay
14%10%47%6%45%5%5%6%34%
1748
21st to endDay
12%12%5%10%7%45%5%5%6%29%
1480
March1st to 10thDay
13%10%5%9%7%45%5%5%6%32%
1800
11th to 20thDay
12%8%46%6%35%46%8%38%
1847
21st to endDay
17%10%6%7%7%45%5%5%6%28%
2376
April1st to 10thDay
16%10%47%6%45%5%6%6%32%
2160
11th to 20thDay
16%7%47%5%35%6%5%7%36%
2134
21st to endDay
18%8%36%6%445%5%7%34%
2286
May1st to 10thDay
14%7%38%6%35%46%9%32%
2340
11th to 20thDay
16%7%35%6%35%45%8%38%
2432
21st to endDay
12%6%26%5%45%6%7%7%41%
2725
June1st to 10thDay
9%5%35%6%345%6%8%45%
2520
11th to 20thDay
11%5%244345%6%9%45%
2520
21st to endDay
9%5%36%6%36%5%7%9%42%
2520
July1st to 10thDay
7%324436%6%7%11%50%
2520
11th to 20thDay
7%4245%35%5%6%9%50%
2520
21st to endDay
6%4245%36%5%6%9%50%
2743
August1st to 10thDay
6%5%25%5%346%7%10%46%
2467
11th to 20thDay
8%5%246%345%6%10%46%
2179
21st to endDay
7%4146%35%5%6%9%49%
2376
September1st to 10thDay
13%5%15%4345%6%7%46%
2160
11th to 20thDay
12%41443445%7%51%
2037
21st to endDay
11%436%6%35%5%7%9%41%
1980
October1st to 10thDay
13%6%36%5%34448%44%
1942
11th to 20thDay
18%8%37%7%4445%7%32%
1764
21st to endDay
20%8%36%5%44447%35%
1782
November1st to 10thDay
11%9%36%5%3446%7%42%
1672
11th to 20thDay
15%9%48%6%35%46%8%31%
1710
21st to endDay
20%9%46%5%35%346%36%
1630
December1st to 10thDay
16%13%48%7%46%5%6%8%23%
1520
11th to 20thDay
13%12%49%6%46%6%6%8%27%
1918
21st to endDay
19%21%8%10%8%35%435%15%
2783
January1st to 10thNight
15%13%8%8%6%34445%30%
4428
11th to 20thNight
16%16%6%12%7%349%6%417%
4440
21st to endNight
20%17%7%9%6%3335%6%21%
4875
February1st to 10thNight
14%13%5%8%7%45%446%31%
2428
11th to 20thNight
14%10%36%6%35%45%7%36%
2098
21st to endNight
20%11%36%5%36%345%36%
1776
March1st to 10thNight
15%10%48%6%45%45%6%34%
2160
11th to 20thNight
11%7%35%5%345%6%8%42%
2124
21st to endNight
19%9%47%6%4445%6%32%
1980
April1st to 10thNight
16%8%35%5%45%5%5%6%37%
1800
11th to 20thNight
20%7%36%6%35%436%38%
1775
21st to endNight
20%7%26%44445%6%39%
1674
May1st to 10thNight
15%7%37%5%45%5%6%9%33%
1620
11th to 20thNight
19%7%34435%46%8%38%
1461
21st to endNight
12%6%37%6%345%5%7%42%
1551
June1st to 10thNight
8%5%25%5%345%7%9%47%
1440
11th to 20thNight
11%5%35%5%35%46%8%44%
1440
21st to endNight
9%5%27%6%35%47%8%44%
1440
July1st to 10thNight
6%3245%35%6%7%9%50%
1440
11th to 20thNight
7%424435%6%6%10%50%
1440
21st to endNight
7%3235%25%6%7%9%51%
1575
August1st to 10thNight
6%4245%35%5%7%10%51%
1471
11th to 20thNight
8%3245%25%45%10%52%
1718
21st to endNight
8%415%5%345%5%7%53%
1980
September1st to 10thNight
10%6%2442446%7%50%
1800
11th to 20thNight
11%32442445%6%55%
1903
21st to endNight
13%5%25%5%4435%7%46%
1980
October1st to 10thNight
14%5%25%5%34446%48%
2016
11th to 20thNight
17%7%45%5%3445%6%41%
2196
21st to endNight
21%7%35%5%34448%36%
2574
November1st to 10thNight
12%7%35%5%3435%7%46%
2406
11th to 20thNight
14%11%47%5%3445%7%35%
2470
21st to endNight
17%8%46%5%35%45%6%36%
2546
December1st to 10thNight
16%12%48%7%36%6%5%6%26%
2660
11th to 20thNight
16%11%48%6%45%5%5%7%28%
3279
21st to endNight
24%16%5%8%7%35%445%18%
4884

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
59%317%17%3
2528
11th to 20thDay
61%322%13%2
2530
21st to endDay
67%310%16%3
2789
February1st to 10thDay
55%5%14%18%7%1
1735
11th to 20thDay
50%412%23%9%1
1758
21st to endDay
57%411%18%9%2
1480
March1st to 10thDay
53%5%14%20%7%1
1800
11th to 20thDay
45%5%13%22%12%2
1847
21st to endDay
57%5%13%19%6%1
2376
April1st to 10thDay
52%6%11%21%11%
2160
11th to 20thDay
47%5%10%21%12%4
2134
21st to endDay
49%6%12%19%12%2
2286
May1st to 10thDay
48%6%13%23%9%1
2340
11th to 20thDay
45%6%13%23%12%1
2436
21st to endDay
41%6%14%24%14%1
2725
June1st to 10thDay
37%414%26%17%2
2520
11th to 20thDay
34%6%14%24%20%3
2520
21st to endDay
37%7%13%24%15%2
2520
July1st to 10thDay
27%6%15%32%16%4
2451
11th to 20thDay
30%6%14%30%18%2
2445
21st to endDay
29%6%17%29%15%4
2591
August1st to 10thDay
31%6%17%31%15%2
2452
11th to 20thDay
34%6%16%29%15%1
2179
21st to endDay
31%7%13%28%19%3
2376
September1st to 10thDay
36%6%13%26%17%2
2160
11th to 20thDay
32%5%13%33%15%2
2037
21st to endDay
38%6%13%28%15%1
1980
October1st to 10thDay
41%411%29%13%1
1942
11th to 20thDay
51%313%21%11%1
1764
21st to endDay
50%5%12%22%9%2
1782
November1st to 10thDay
42%415%22%16%1
1672
11th to 20thDay
52%416%20%7%1
1710
21st to endDay
52%415%22%7%
1630
December1st to 10thDay
60%318%12%6%1
1520
11th to 20thDay
56%317%18%5%
1915
21st to endDay
74%29%12%3
2783
January1st to 10thNight
59%215%19%4
4428
11th to 20thNight
68%215%11%3
4440
21st to endNight
66%214%14%3
4875
February1st to 10thNight
56%311%18%10%1
2428
11th to 20thNight
50%313%21%12%1
2099
21st to endNight
53%211%20%11%3
1776
March1st to 10thNight
52%414%20%8%1
2160
11th to 20thNight
40%414%24%15%2
2124
21st to endNight
54%311%21%9%1
1980
April1st to 10thNight
47%5%12%21%14%1
1800
11th to 20thNight
50%46%19%18%4
1775
21st to endNight
47%412%20%15%2
1674
May1st to 10thNight
47%6%12%22%12%1
1620
11th to 20thNight
44%5%11%22%15%2
1462
21st to endNight
42%5%12%23%16%2
1552
June1st to 10thNight
34%5%13%28%18%3
1440
11th to 20thNight
37%49%26%22%2
1440
21st to endNight
37%6%15%25%15%2
1440
July1st to 10thNight
30%5%15%29%17%5%
1400
11th to 20thNight
28%5%15%30%18%4
1392
21st to endNight
28%5%15%28%20%4
1487
August1st to 10thNight
29%5%17%30%17%2
1462
11th to 20thNight
29%5%15%33%17%1
1718
21st to endNight
29%6%11%29%21%3
1980
September1st to 10thNight
33%6%12%26%21%3
1800
11th to 20thNight
30%49%36%19%2
1903
21st to endNight
40%39%31%15%1
1980
October1st to 10thNight
38%411%28%17%2
2016
11th to 20thNight
46%212%22%16%1
2196
21st to endNight
49%414%22%10%1
2574
November1st to 10thNight
41%312%25%16%3
2406
11th to 20thNight
50%315%21%10%1
2470
21st to endNight
50%315%24%7%
2546
December1st to 10thNight
59%314%17%6%1
2660
11th to 20thNight
56%316%19%5%1
3281
21st to endNight
70%211%13%4
4884

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
20%11%33%27%7%1
270
11th to 20thDay
19%15%35%23%7%1
270
21st to endDay
21%9%35%26%8%1
297
February1st to 10thDay
14%15%42%22%7%
267
11th to 20thDay
20%19%31%23%6%1
240
21st to endDay
18%17%44%18%4
198
March1st to 10thDay
16%13%45%23%3
240
11th to 20thDay
20%11%34%24%9%1
274
21st to endDay
23%10%30%26%10%2
462
April1st to 10thDay
18%11%31%32%8%
420
11th to 20thDay
18%10%36%22%10%5%
412
21st to endDay
20%8%33%23%14%3
420
May1st to 10thDay
20%430%31%12%2
423
11th to 20thDay
19%326%34%16%3
578
21st to endDay
14%322%30%23%8%
679
June1st to 10thDay
10%319%39%25%5%
630
11th to 20thDay
14%316%38%23%6%
630
21st to endDay
11%320%38%24%5%
630
July1st to 10thDay
6%212%32%35%13%
621
11th to 20thDay
10%117%36%28%8%
618
21st to endDay
7%116%44%26%6%
684
August1st to 10thDay
7%311%36%34%10%
586
11th to 20thDay
8%314%32%31%12%
439
21st to endDay
9%215%35%28%10%
495
September1st to 10thDay
13%5%18%31%23%10%
450
11th to 20thDay
10%215%32%28%11%
450
21st to endDay
14%6%23%26%20%10%
450
October1st to 10thDay
17%7%24%27%19%6%
412
11th to 20thDay
23%13%30%24%10%1
270
21st to endDay
28%11%28%26%7%
297
November1st to 10thDay
13%10%35%26%14%2
270
11th to 20thDay
18%17%37%19%10%
270
21st to endDay
26%6%39%24%5%
270
December1st to 10thDay
18%17%36%19%9%1
270
11th to 20thDay
19%14%36%22%9%
270
21st to endDay
25%15%37%20%2
297
January1st to 10thNight
20%14%38%23%5%
950
11th to 20thNight
23%13%36%22%6%1
950
21st to endNight
21%10%37%26%6%
1045
February1st to 10thNight
20%10%38%25%7%
912
11th to 20thNight
21%13%36%25%5%
703
21st to endNight
28%9%37%21%41
592
March1st to 10thNight
19%8%36%27%10%1
720
11th to 20thNight
14%8%34%32%11%1
720
21st to endNight
23%5%29%30%12%1
594
April1st to 10thNight
20%8%31%32%10%
540
11th to 20thNight
23%6%27%29%13%2
533
21st to endNight
24%5%20%33%16%1
540
May1st to 10thNight
19%423%38%14%2
540
11th to 20thNight
21%220%30%24%2
531
21st to endNight
14%316%32%30%6%
584
June1st to 10thNight
11%313%42%27%4
540
11th to 20thNight
14%318%36%26%3
540
21st to endNight
10%216%39%29%4
540
July1st to 10thNight
7%28%34%37%12%
525
11th to 20thNight
8%310%38%33%8%
522
21st to endNight
7%210%41%36%4
591
August1st to 10thNight
8%19%39%36%8%
537
11th to 20thNight
9%211%31%37%10%
534
21st to endNight
8%213%34%36%7%
594
September1st to 10thNight
13%314%33%28%9%
540
11th to 20thNight
12%415%28%31%10%
643
21st to endNight
16%6%20%26%23%9%
720
October1st to 10thNight
16%5%23%29%23%4
720
11th to 20thNight
20%11%31%26%11%1
720
21st to endNight
26%10%28%27%9%1
792
November1st to 10thNight
17%10%35%24%13%1
740
11th to 20thNight
21%17%33%22%7%1
760
21st to endNight
22%12%35%23%7%
836
December1st to 10thNight
23%15%35%21%5%
950
11th to 20thNight
25%10%37%23%6%
950
21st to endNight
32%12%35%19%3
1045
Page generated at 2024-02-07 05:11:56. Version ac07

Copyright 2024 Attilla Danko


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