Las Animas
Clear Sky Chart
History

This sumarizes the distribution of each different forecast outcome for the Las Animas 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
52%
24466
29%
74449
18%
24416
61%
24416
41%
39537

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
56%
950
31%
2647
20%
946
66%
946
48%
1396
January11th to 20thNight
53%
935
32%
2617
21%
935
62%
935
46%
1412
January21st to endNight
55%
814
34%
2596
26%
814
64%
814
42%
1328
February1st to 10thNight
48%
720
28%
2181
18%
720
59%
720
40%
1187
February11th to 20thNight
43%
701
28%
2098
16%
700
55%
700
38%
1188
February21st to endNight
42%
592
37%
1776
17%
592
59%
592
45%
901
March1st to 10thNight
43%
720
29%
2160
15%
720
54%
720
42%
1142
March11th to 20thNight
44%
701
26%
2113
15%
701
54%
701
40%
1142
March21st to endNight
34%
594
32%
1980
14%
594
55%
594
37%
1001
April1st to 10thNight
30%
540
29%
1800
14%
540
49%
540
37%
914
April11th to 20thNight
31%
533
25%
1777
12%
533
51%
533
33%
948
April21st to endNight
38%
540
22%
1800
16%
540
52%
540
32%
994
May1st to 10thNight
39%
540
24%
1621
15%
540
53%
540
33%
938
May11th to 20thNight
43%
531
17%
1593
13%
531
51%
531
33%
953
May21st to endNight
36%
582
19%
1612
9%
582
47%
582
35%
973
June1st to 10thNight
49%
540
24%
1440
12%
540
58%
540
48%
792
June11th to 20thNight
43%
540
26%
1440
13%
540
52%
540
47%
790
June21st to endNight
50%
540
22%
1440
14%
540
56%
540
40%
860
July1st to 10thNight
58%
525
19%
1400
14%
525
62%
525
36%
874
July11th to 20thNight
71%
522
26%
1392
20%
522
74%
522
46%
781
July21st to endNight
66%
591
18%
1488
16%
558
67%
558
31%
977
August1st to 10thNight
62%
537
16%
1744
16%
534
65%
534
28%
1053
August11th to 20thNight
64%
534
23%
1778
23%
534
70%
534
35%
972
August21st to endNight
70%
594
28%
1980
30%
594
75%
594
42%
986
September1st to 10thNight
61%
540
29%
1800
25%
540
71%
540
41%
916
September11th to 20thNight
62%
540
34%
1908
29%
540
73%
540
46%
864
September21st to endNight
56%
540
34%
1980
28%
540
67%
540
42%
909
October1st to 10thNight
50%
544
33%
1984
24%
544
62%
544
40%
934
October11th to 20thNight
61%
720
40%
2160
23%
720
72%
720
59%
968
October21st to endNight
56%
908
34%
2492
18%
908
64%
908
49%
1314
November1st to 10thNight
63%
925
35%
2405
19%
925
69%
925
62%
1169
November11th to 20thNight
59%
950
39%
2470
21%
950
67%
950
56%
1278
November21st to endNight
57%
950
35%
2470
19%
950
64%
950
49%
1346
December1st to 10thNight
54%
950
33%
2515
17%
950
64%
950
49%
1357
December11th to 20thNight
54%
948
31%
3085
20%
948
62%
948
40%
1591
December21st to endNight
46%
1035
22%
4707
17%
1026
57%
1026
27%
2389

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
5%42332445%8%60%
74862
Night
6%42442445%7%58%
74985
TransparencyDay
23%410%25%26%13%
74567
Night
25%410%23%25%12%
74803
SeeingDay
7%6%22%33%24%9%
14360
Night
7%5%31%43%14%1
24483

By Month

Percentage Cloud Cover SW (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
342332335%6%66%
1518
11th to 20thDay
6%6%24324336%61%
1488
21st to endDay
36%345%33336%61%
1774
February1st to 10thDay
5%6%35%443447%56%
1778
11th to 20thDay
2435%5%3445%7%58%
1749
21st to endDay
4425%5%34346%60%
1480
March1st to 10thDay
34245%2345%8%61%
1800
11th to 20thDay
6%4243345%45%62%
1844
21st to endDay
7%5%1342445%8%56%
2376
April1st to 10thDay
6%31332445%7%63%
2160
11th to 20thDay
8%42432445%8%55%
2131
21st to endDay
8%5%244345%5%8%53%
2160
May1st to 10thDay
8%4143245%6%8%55%
2336
11th to 20thDay
7%4244245%6%8%55%
2302
21st to endDay
6%32332347%8%58%
2662
June1st to 10thDay
5%1133336%7%11%58%
2520
11th to 20thDay
5%21232346%8%64%
2520
21st to endDay
42124345%7%11%58%
2520
July1st to 10thDay
5%213335%5%7%9%56%
2520
11th to 20thDay
21122245%7%11%64%
2520
21st to endDay
5%2235%35%5%8%11%51%
2742
August1st to 10thDay
3313335%6%8%11%55%
2181
11th to 20thDay
6%31332446%10%57%
2123
21st to endDay
321332345%9%65%
2376
September1st to 10thDay
5%31332445%6%64%
2160
11th to 20thDay
5%312323346%68%
2052
21st to endDay
5%223223436%68%
1980
October1st to 10thDay
7%422323347%62%
1973
11th to 20thDay
4311313346%71%
1800
21st to endDay
7%413312225%68%
1843
November1st to 10thDay
3322212345%73%
1673
11th to 20thDay
3323323335%70%
1710
21st to endDay
6%5%23313335%64%
1710
December1st to 10thDay
37%24433347%61%
1661
11th to 20thDay
5%5%1332436%8%60%
1926
21st to endDay
7%8%36%423446%53%
2794
January1st to 10thNight
45%2432445%7%61%
2647
11th to 20thNight
46%24423346%61%
2617
21st to endNight
36%3442335%7%59%
2596
February1st to 10thNight
5%6%25%5%23346%58%
2181
11th to 20thNight
46%35%4245%6%8%52%
2098
21st to endNight
5%5%24323448%61%
1776
March1st to 10thNight
6%5%2342445%7%59%
2160
11th to 20thNight
8%5%2442335%7%57%
2113
21st to endNight
7%5%2332446%8%56%
1980
April1st to 10thNight
6%5%2442345%7%59%
1800
11th to 20thNight
9%5%2432445%8%54%
1777
21st to endNight
11%5%1442445%7%53%
1800
May1st to 10thNight
9%5%24425%45%8%52%
1621
11th to 20thNight
10%5%25%4345%6%9%47%
1593
21st to endNight
11%4234245%7%7%51%
1611
June1st to 10thNight
3212425%6%8%11%56%
1440
11th to 20thNight
5%3234345%6%8%58%
1440
21st to endNight
6%415%5%35%5%8%9%50%
1440
July1st to 10thNight
4425%7%36%6%7%9%47%
1440
11th to 20thNight
4314435%6%7%9%54%
1440
21st to endNight
6%5%25%6%45%7%7%11%41%
1576
August1st to 10thNight
7%4246%46%8%9%9%42%
1753
11th to 20thNight
6%424435%6%7%11%48%
1778
21st to endNight
4213425%6%8%10%54%
1980
September1st to 10thNight
5%324425%45%7%59%
1800
11th to 20thNight
5%21332345%9%62%
1908
21st to endNight
6%313424446%63%
1980
October1st to 10thNight
7%31342346%7%60%
1984
11th to 20thNight
4212212346%73%
2160
21st to endNight
5%5%13323445%65%
2492
November1st to 10thNight
3212322346%71%
2405
11th to 20thNight
441422323470%
2470
21st to endNight
46%2432335%6%63%
2470
December1st to 10thNight
35%2442335%7%62%
2515
11th to 20thNight
46%3332445%8%58%
3271
21st to endNight
6%7%25%5%2445%7%53%
4873

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
20%310%32%28%6%
1519
11th to 20thDay
27%37%27%28%8%
1488
21st to endDay
26%37%30%27%7%
1774
February1st to 10thDay
30%49%26%22%9%
1778
11th to 20thDay
27%47%27%26%9%
1759
21st to endDay
27%26%22%27%17%
1480
March1st to 10thDay
23%48%24%24%17%
1800
11th to 20thDay
25%37%22%32%10%
1844
21st to endDay
27%410%26%24%9%
2376
April1st to 10thDay
21%49%24%26%16%
2160
11th to 20thDay
28%49%26%20%14%
2134
21st to endDay
29%5%9%23%24%9%
2160
May1st to 10thDay
26%5%10%27%23%8%
2336
11th to 20thDay
27%6%15%28%19%5%
2306
21st to endDay
22%6%16%25%20%11%
2662
June1st to 10thDay
20%5%15%28%22%10%
2520
11th to 20thDay
18%49%21%25%22%
2520
21st to endDay
20%5%9%24%25%16%
2520
July1st to 10thDay
24%6%9%21%25%14%
2451
11th to 20thDay
13%6%11%25%33%13%
2445
21st to endDay
26%7%14%30%20%3
2590
August1st to 10thDay
19%8%21%27%15%10%
2166
11th to 20thDay
23%5%10%25%26%12%
2123
21st to endDay
17%6%9%26%28%15%
2376
September1st to 10thDay
21%49%22%26%18%
2160
11th to 20thDay
17%47%21%27%24%
2052
21st to endDay
18%47%19%34%18%
1980
October1st to 10thDay
23%39%22%28%15%
1973
11th to 20thDay
16%36%17%36%21%
1800
21st to endDay
23%25%24%28%17%
1843
November1st to 10thDay
16%37%26%30%19%
1673
11th to 20thDay
18%25%29%33%12%
1710
21st to endDay
24%26%18%32%18%
1710
December1st to 10thDay
25%39%29%28%8%
1661
11th to 20thDay
21%48%26%35%6%
1924
21st to endDay
33%36%23%26%7%
2794
January1st to 10thNight
23%39%29%28%7%
2647
11th to 20thNight
26%26%28%28%10%
2617
21st to endNight
26%36%31%27%7%
2596
February1st to 10thNight
28%310%24%26%9%
2181
11th to 20thNight
30%49%25%23%8%
2098
21st to endNight
23%35%24%29%16%
1776
March1st to 10thNight
25%47%21%27%16%
2160
11th to 20thNight
27%49%24%23%13%
2113
21st to endNight
26%312%25%24%9%
1980
April1st to 10thNight
26%48%22%25%16%
1800
11th to 20thNight
29%5%10%24%21%11%
1777
21st to endNight
32%412%22%22%8%
1800
May1st to 10thNight
31%6%13%20%21%10%
1621
11th to 20thNight
33%6%18%19%17%7%
1594
21st to endNight
31%7%17%17%16%12%
1612
June1st to 10thNight
20%8%20%26%16%10%
1440
11th to 20thNight
22%6%11%22%20%19%
1440
21st to endNight
30%6%10%19%23%12%
1440
July1st to 10thNight
32%8%14%20%19%8%
1400
11th to 20thNight
23%7%11%26%24%9%
1392
21st to endNight
35%10%16%21%16%2
1488
August1st to 10thNight
33%10%17%22%10%8%
1744
11th to 20thNight
29%7%15%27%18%6%
1778
21st to endNight
22%7%13%24%24%10%
1980
September1st to 10thNight
24%6%11%22%22%15%
1800
11th to 20thNight
19%5%10%21%24%20%
1908
21st to endNight
22%46%18%33%17%
1980
October1st to 10thNight
23%412%21%25%15%
1984
11th to 20thNight
15%26%23%30%24%
2160
21st to endNight
23%37%20%28%19%
2492
November1st to 10thNight
14%39%23%31%20%
2405
11th to 20thNight
20%25%24%34%15%
2470
21st to endNight
24%26%20%31%16%
2470
December1st to 10thNight
23%410%29%26%9%
2515
11th to 20thNight
25%47%24%34%7%
3272
21st to endNight
31%37%24%29%5%
4873

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
6%323%43%20%5%
270
11th to 20thDay
11%5%25%38%18%3
258
21st to endDay
6%430%39%20%2
264
February1st to 10thDay
5%5%35%36%16%2
240
11th to 20thDay
4338%39%16%
240
21st to endDay
6%6%33%43%11%1
198
March1st to 10thDay
5%9%28%37%18%4
240
11th to 20thDay
10%8%29%30%17%6%
266
21st to endDay
14%16%30%27%11%1
462
April1st to 10thDay
8%12%32%31%13%4
420
11th to 20thDay
13%15%29%31%10%2
412
21st to endDay
11%12%36%27%11%3
420
May1st to 10thDay
10%11%28%31%18%3
599
11th to 20thDay
12%7%25%31%20%5%
625
21st to endDay
8%11%26%30%21%5%
679
June1st to 10thDay
45%22%29%27%12%
630
11th to 20thDay
5%5%27%33%25%6%
630
21st to endDay
5%419%33%32%8%
630
July1st to 10thDay
6%212%34%33%13%
621
11th to 20thDay
319%32%39%16%
618
21st to endDay
6%17%27%40%18%
684
August1st to 10thDay
3111%32%37%16%
476
11th to 20thDay
5%215%35%30%13%
437
21st to endDay
3213%36%31%16%
495
September1st to 10thDay
5%116%36%28%15%
450
11th to 20thDay
4113%29%36%18%
342
21st to endDay
8%317%24%28%20%
270
October1st to 10thDay
10%6%19%23%25%17%
270
11th to 20thDay
4321%34%25%13%
270
21st to endDay
11%6%22%28%24%9%
297
November1st to 10thDay
6%424%34%24%8%
270
11th to 20thDay
7%5%19%37%27%6%
270
21st to endDay
11%8%21%33%21%6%
270
December1st to 10thDay
4419%51%18%4
270
11th to 20thDay
8%6%19%40%26%1
270
21st to endDay
9%8%31%40%10%1
297
January1st to 10thNight
7%329%48%12%2
950
11th to 20thNight
7%5%30%44%14%1
935
21st to endNight
6%428%52%10%1
814
February1st to 10thNight
8%434%47%7%
720
11th to 20thNight
7%7%38%40%8%
704
21st to endNight
9%6%38%42%4
592
March1st to 10thNight
8%7%39%39%7%1
720
11th to 20thNight
10%9%34%37%10%
701
21st to endNight
10%10%43%32%4
594
April1st to 10thNight
9%9%48%30%4
540
11th to 20thNight
12%10%44%31%4
533
21st to endNight
12%11%36%32%8%
540
May1st to 10thNight
10%11%37%35%8%
540
11th to 20thNight
12%5%33%35%13%1
531
21st to endNight
12%8%41%31%8%
584
June1st to 10thNight
4438%40%12%1
540
11th to 20thNight
6%444%40%7%
540
21st to endNight
8%332%44%12%
540
July1st to 10thNight
6%323%47%20%1
525
11th to 20thNight
4117%51%26%
522
21st to endNight
8%214%45%29%2
591
August1st to 10thNight
7%118%41%31%1
537
11th to 20thNight
7%122%52%18%1
534
21st to endNight
4120%50%24%2
594
September1st to 10thNight
5%326%48%18%
540
11th to 20thNight
6%127%48%18%1
540
21st to endNight
6%429%43%17%1
540
October1st to 10thNight
9%7%29%40%15%1
544
11th to 20thNight
5%329%44%17%2
720
21st to endNight
8%6%27%39%19%1
908
November1st to 10thNight
4425%50%16%1
925
11th to 20thNight
6%6%26%46%15%1
950
21st to endNight
8%8%24%43%17%1
950
December1st to 10thNight
6%430%46%13%1
950
11th to 20thNight
8%427%45%15%1
950
21st to endNight
9%6%32%43%9%
1045
Page generated at 2024-01-14 07:55:04. Version ac07

Copyright 2024 Attilla Danko


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