New Carlisle
Clear Sky Chart
History

This sumarizes the distribution of each different forecast outcome for the New Carlisle clear sky chart from 2005-11-06 to 2024-01-17.

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
34%
24566
14%
74768
9%
24509
39%
24509
18%
53634

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
16%
950
9%
2648
3%
946
22%
946
10%
2186
January11th to 20thNight
13%
935
6%
2617
3%
935
15%
935
9%
2208
January21st to endNight
15%
990
7%
2772
2%
990
19%
990
10%
2302
February1st to 10thNight
15%
756
8%
2232
3%
756
20%
756
10%
1817
February11th to 20thNight
19%
700
12%
2099
5%
700
26%
700
13%
1612
February21st to endNight
14%
592
11%
1776
3%
592
23%
592
11%
1378
March1st to 10thNight
23%
720
11%
2160
7%
720
27%
720
15%
1600
March11th to 20thNight
30%
720
19%
2070
10%
720
37%
720
23%
1390
March21st to endNight
30%
680
16%
2066
9%
680
37%
680
17%
1516
April1st to 10thNight
28%
540
14%
1800
9%
540
35%
540
18%
1223
April11th to 20thNight
30%
533
19%
1775
12%
533
40%
533
20%
1194
April21st to endNight
31%
540
15%
1628
8%
540
38%
540
20%
1134
May1st to 10thNight
34%
540
13%
1620
8%
540
39%
540
20%
1148
May11th to 20thNight
41%
531
16%
1593
9%
531
47%
531
23%
1075
May21st to endNight
51%
583
16%
1552
10%
582
55%
582
30%
1027
June1st to 10thNight
53%
540
17%
1440
11%
540
59%
540
38%
876
June11th to 20thNight
48%
540
17%
1440
11%
540
53%
540
33%
921
June21st to endNight
53%
540
15%
1440
9%
540
57%
540
31%
937
July1st to 10thNight
67%
525
17%
1400
14%
525
69%
525
39%
842
July11th to 20thNight
62%
522
22%
1392
17%
522
65%
522
39%
829
July21st to endNight
67%
591
21%
1487
15%
558
69%
558
38%
894
August1st to 10thNight
69%
537
21%
1570
19%
534
71%
534
37%
900
August11th to 20thNight
66%
534
20%
1656
19%
534
68%
534
33%
970
August21st to endNight
63%
594
23%
1980
23%
594
66%
594
32%
1118
September1st to 10thNight
58%
540
21%
1800
21%
540
61%
540
28%
1082
September11th to 20thNight
60%
702
30%
1962
24%
702
64%
702
37%
1169
September21st to endNight
48%
720
23%
1980
15%
720
53%
720
30%
1260
October1st to 10thNight
45%
720
23%
1980
17%
720
50%
720
29%
1285
October11th to 20thNight
28%
720
17%
2182
8%
720
38%
720
19%
1497
October21st to endNight
24%
792
15%
2574
9%
792
32%
792
15%
1853
November1st to 10thNight
29%
740
18%
2406
14%
740
36%
740
19%
1620
November11th to 20thNight
22%
760
14%
2470
8%
760
30%
760
13%
1860
November21st to endNight
22%
760
13%
2470
8%
760
28%
760
12%
1890
December1st to 10thNight
14%
888
6%
2598
2%
888
17%
888
10%
2130
December11th to 20thNight
16%
950
6%
3273
3%
949
20%
949
8%
2717
December21st to endNight
12%
1041
4%
4860
2%
1026
16%
1026
4%
4174

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
14%9%47%6%35%5%5%7%34%
74869
Night
15%10%47%6%3445%7%33%
74980
TransparencyDay
48%7%12%20%11%2
74570
Night
50%7%12%18%11%2
74800
SeeingDay
18%14%29%22%12%4
14597
Night
19%11%29%28%11%1
24574

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
16%15%6%12%9%45%45%6%18%
1517
11th to 20thDay
14%17%10%13%9%5%5%45%414%
1488
21st to endDay
15%19%8%12%7%46%446%16%
1584
February1st to 10thDay
16%15%7%10%8%6%6%445%19%
1725
11th to 20thDay
15%12%5%11%9%46%45%5%24%
1748
21st to endDay
16%13%9%11%6%3445%6%23%
1480
March1st to 10thDay
17%12%5%8%7%445%5%6%28%
1800
11th to 20thDay
14%11%48%7%445%6%7%32%
1890
21st to endDay
20%12%5%8%7%35%445%27%
2304
April1st to 10thDay
16%12%46%6%35%5%5%7%31%
2160
11th to 20thDay
17%10%35%5%3345%7%38%
2134
21st to endDay
19%9%36%5%3446%9%33%
2330
May1st to 10thDay
18%9%36%5%35%5%6%7%33%
2340
11th to 20thDay
19%9%36%5%345%5%6%37%
2301
21st to endDay
11%5%37%5%35%5%7%8%40%
2722
June1st to 10thDay
10%5%25%6%45%45%8%45%
2520
11th to 20thDay
9%5%35%6%35%6%5%8%45%
2520
21st to endDay
11%5%35%6%345%6%9%42%
2520
July1st to 10thDay
6%5%35%6%346%6%9%47%
2520
11th to 20thDay
9%4245%35%6%6%9%46%
2520
21st to endDay
7%425%6%35%6%6%9%47%
2743
August1st to 10thDay
7%425%5%45%6%7%11%45%
2359
11th to 20thDay
9%5%35%5%35%5%6%9%45%
2241
21st to endDay
8%425%6%35%5%6%9%47%
2376
September1st to 10thDay
10%6%26%6%35%5%6%8%43%
2159
11th to 20thDay
12%5%245%35%5%6%7%45%
1980
21st to endDay
11%7%36%5%445%6%8%41%
1980
October1st to 10thDay
14%6%36%5%345%47%42%
1980
11th to 20thDay
20%8%36%6%35%46%8%32%
1775
21st to endDay
22%10%38%7%345%5%6%25%
1782
November1st to 10thDay
14%9%37%5%345%6%6%38%
1672
11th to 20thDay
16%15%5%7%8%45%45%6%25%
1710
21st to endDay
20%14%6%9%5%34445%25%
1710
December1st to 10thDay
16%16%7%12%7%43435%22%
1578
11th to 20thDay
14%19%8%10%7%4445%5%19%
1918
21st to endDay
22%22%7%13%9%3433410%
2783
January1st to 10thNight
17%14%7%11%9%345%6%5%19%
2648
11th to 20thNight
17%16%8%11%8%45%5%45%18%
2617
21st to endNight
14%15%8%13%10%445%45%18%
2772
February1st to 10thNight
17%16%6%9%9%4445%6%21%
2232
11th to 20thNight
16%11%5%10%8%445%5%6%26%
2098
21st to endNight
20%14%6%9%5%34345%26%
1776
March1st to 10thNight
16%10%5%9%6%45%5%45%31%
2160
11th to 20thNight
14%8%37%5%3445%7%40%
2070
21st to endNight
21%10%47%5%3445%6%32%
2066
April1st to 10thNight
15%8%46%6%35%5%5%8%36%
1800
11th to 20thNight
18%9%36%5%3445%6%37%
1775
21st to endNight
19%8%36%5%45%5%5%6%36%
1628
May1st to 10thNight
16%10%36%5%36%46%6%35%
1620
11th to 20thNight
17%6%36%5%335%5%7%39%
1592
21st to endNight
11%5%36%6%35%6%6%8%42%
1551
June1st to 10thNight
9%5%26%4245%6%10%48%
1440
11th to 20thNight
9%5%35%5%346%6%8%46%
1440
21st to endNight
9%5%36%6%35%5%9%9%42%
1440
July1st to 10thNight
6%325%4345%6%9%51%
1440
11th to 20thNight
7%4243245%7%10%52%
1440
21st to endNight
6%424445%5%7%11%50%
1575
August1st to 10thNight
6%325%435%6%7%10%49%
1579
11th to 20thNight
8%3245%35%6%5%9%50%
1656
21st to endNight
9%4245%34448%52%
1980
September1st to 10thNight
11%5%36%5%34447%48%
1800
11th to 20thNight
11%41443345%8%52%
1962
21st to endNight
13%6%26%4345%5%7%45%
1980
October1st to 10thNight
16%6%245%34447%46%
1980
11th to 20thNight
18%9%37%5%24446%37%
2182
21st to endNight
24%10%36%5%3444433%
2574
November1st to 10thNight
14%12%46%5%34445%39%
2406
11th to 20thNight
14%15%5%8%6%35%5%5%6%27%
2470
21st to endNight
19%15%5%8%5%35%436%26%
2470
December1st to 10thNight
17%16%8%10%6%3445%6%20%
2598
11th to 20thNight
15%17%8%11%8%45%5%5%5%18%
3279
21st to endNight
26%19%6%9%7%3445%5%12%
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
66%7%11%10%5%
1518
11th to 20thDay
74%6%12%7%2
1488
21st to endDay
69%6%10%10%5%
1584
February1st to 10thDay
68%6%11%10%41
1725
11th to 20thDay
61%7%10%15%7%
1758
21st to endDay
61%6%11%14%6%1
1480
March1st to 10thDay
58%7%10%18%8%
1800
11th to 20thDay
49%6%15%19%9%2
1890
21st to endDay
59%5%12%19%5%1
2304
April1st to 10thDay
51%6%11%20%12%
2160
11th to 20thDay
47%6%10%21%13%3
2134
21st to endDay
47%7%13%18%12%3
2330
May1st to 10thDay
48%8%13%21%9%1
2340
11th to 20thDay
48%6%11%21%13%2
2305
21st to endDay
40%8%13%24%14%2
2722
June1st to 10thDay
37%7%11%25%19%2
2520
11th to 20thDay
35%8%12%23%19%3
2520
21st to endDay
37%9%16%20%16%3
2520
July1st to 10thDay
33%7%12%24%18%4
2451
11th to 20thDay
33%8%15%26%16%3
2445
21st to endDay
31%10%14%26%16%3
2591
August1st to 10thDay
31%9%16%29%14%2
2344
11th to 20thDay
34%9%15%25%16%2
2241
21st to endDay
32%6%14%26%17%5%
2376
September1st to 10thDay
37%8%14%22%16%4
2159
11th to 20thDay
34%8%14%26%17%2
1980
21st to endDay
39%6%12%24%17%2
1980
October1st to 10thDay
41%8%12%22%16%2
1980
11th to 20thDay
49%7%13%20%11%
1775
21st to endDay
58%7%12%15%7%1
1782
November1st to 10thDay
44%7%14%20%14%1
1672
11th to 20thDay
60%7%9%16%7%1
1710
21st to endDay
63%6%10%16%5%
1710
December1st to 10thDay
65%6%11%13%4
1578
11th to 20thDay
66%8%11%13%2
1915
21st to endDay
78%6%8%6%1
2783
January1st to 10thNight
64%8%10%13%4
2648
11th to 20thNight
68%8%12%9%3
2617
21st to endNight
67%6%11%12%3
2772
February1st to 10thNight
65%7%10%12%5%1
2232
11th to 20thNight
57%8%11%16%7%1
2099
21st to endNight
61%6%10%14%6%2
1776
March1st to 10thNight
55%6%11%18%9%1
2160
11th to 20thNight
43%7%14%21%13%2
2070
21st to endNight
54%6%9%21%10%1
2066
April1st to 10thNight
46%8%12%20%13%1
1800
11th to 20thNight
47%6%8%20%16%3
1775
21st to endNight
47%7%11%18%14%3
1628
May1st to 10thNight
49%7%12%22%10%1
1620
11th to 20thNight
45%6%11%20%17%1
1593
21st to endNight
38%8%14%23%14%2
1552
June1st to 10thNight
29%8%14%28%18%3
1440
11th to 20thNight
34%8%14%24%19%2
1440
21st to endNight
36%8%18%22%14%2
1440
July1st to 10thNight
28%8%16%25%19%5%
1400
11th to 20thNight
27%9%14%25%22%4
1392
21st to endNight
28%9%17%23%18%5%
1487
August1st to 10thNight
27%8%16%28%18%2
1570
11th to 20thNight
29%10%14%26%19%2
1656
21st to endNight
31%7%12%25%21%5%
1980
September1st to 10thNight
36%7%13%21%18%6%
1800
11th to 20thNight
31%6%9%30%23%2
1962
21st to endNight
37%6%11%25%18%2
1980
October1st to 10thNight
38%7%10%25%18%1
1980
11th to 20thNight
48%5%10%21%14%1
2182
21st to endNight
54%6%11%20%8%1
2574
November1st to 10thNight
47%6%10%21%14%2
2406
11th to 20thNight
57%7%11%16%8%1
2470
21st to endNight
60%6%11%18%5%
2470
December1st to 10thNight
65%8%11%12%5%
2598
11th to 20thNight
66%9%11%11%3
3281
21st to endNight
74%7%10%7%2
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
23%21%33%16%5%1
270
11th to 20thDay
25%18%39%12%41
258
21st to endDay
24%23%33%16%31
264
February1st to 10thDay
28%25%35%9%3
240
11th to 20thDay
28%27%32%12%2
240
21st to endDay
31%30%32%5%3
198
March1st to 10thDay
24%27%37%10%2
240
11th to 20thDay
25%17%35%17%6%1
330
21st to endDay
30%18%29%15%7%
462
April1st to 10thDay
26%18%30%21%41
420
11th to 20thDay
24%22%28%15%9%3
412
21st to endDay
25%19%31%15%8%2
420
May1st to 10thDay
27%15%30%19%8%2
423
11th to 20thDay
24%12%30%21%9%4
447
21st to endDay
12%12%30%25%16%5%
676
June1st to 10thDay
12%10%31%29%14%4
630
11th to 20thDay
13%8%28%33%14%4
630
21st to endDay
13%10%32%29%12%5%
630
July1st to 10thDay
8%7%22%29%22%11%
621
11th to 20thDay
10%6%30%26%20%7%
618
21st to endDay
8%7%26%35%18%7%
684
August1st to 10thDay
8%418%30%26%14%
478
11th to 20thDay
8%6%24%27%25%9%
439
21st to endDay
9%6%23%31%23%9%
495
September1st to 10thDay
13%7%23%30%21%6%
450
11th to 20thDay
10%7%20%29%25%10%
450
21st to endDay
17%12%22%26%16%7%
450
October1st to 10thDay
16%10%30%25%16%3
450
11th to 20thDay
25%18%32%20%41
328
21st to endDay
35%16%34%14%11
297
November1st to 10thDay
12%23%38%19%6%2
270
11th to 20thDay
29%24%28%14%5%
270
21st to endDay
32%17%36%14%1
270
December1st to 10thDay
19%33%30%12%5%1
270
11th to 20thDay
20%30%34%13%31
270
21st to endDay
23%29%38%9%1
297
January1st to 10thNight
24%17%35%20%4
950
11th to 20thNight
25%16%36%19%4
935
21st to endNight
21%16%36%22%4
990
February1st to 10thNight
27%14%37%19%3
756
11th to 20thNight
21%18%36%21%4
703
21st to endNight
28%16%35%16%4
592
March1st to 10thNight
21%16%33%23%6%1
720
11th to 20thNight
19%12%35%27%6%
720
21st to endNight
26%11%28%30%5%
680
April1st to 10thNight
19%13%35%25%7%1
540
11th to 20thNight
23%11%33%25%7%1
533
21st to endNight
22%10%32%27%9%1
540
May1st to 10thNight
23%6%32%29%10%1
540
11th to 20thNight
19%6%27%35%13%
531
21st to endNight
13%423%39%20%1
584
June1st to 10thNight
10%427%41%17%1
540
11th to 20thNight
11%428%40%15%1
540
21st to endNight
10%424%38%22%1
540
July1st to 10thNight
7%215%43%28%4
525
11th to 20thNight
9%421%36%26%4
522
21st to endNight
7%217%43%29%2
591
August1st to 10thNight
6%115%47%28%3
537
11th to 20thNight
7%215%42%29%4
534
21st to endNight
9%316%39%30%3
594
September1st to 10thNight
13%5%16%39%23%4
540
11th to 20thNight
11%419%35%26%4
702
21st to endNight
15%8%24%29%21%3
720
October1st to 10thNight
16%8%26%29%20%1
720
11th to 20thNight
22%16%29%26%6%1
720
21st to endNight
29%14%29%23%5%
792
November1st to 10thNight
20%15%31%23%10%1
740
11th to 20thNight
23%19%31%21%41
760
21st to endNight
26%17%30%22%5%
760
December1st to 10thNight
24%20%35%17%4
888
11th to 20thNight
23%15%37%21%3
950
21st to endNight
29%18%34%17%2
1045
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