Pagosa Springs
Clear Sky Chart
History

This sumarizes the distribution of each different forecast outcome for the Pagosa Springs clear sky chart from 2005-11-06 to 2024-12-06.

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
56%
25296
25%
99254
20%
25085
63%
25085
30%
53344

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
53%
820
23%
4152
20%
805
62%
805
22%
2332
January11th to 20thNight
48%
758
26%
4046
25%
740
58%
740
22%
2117
January21st to endNight
50%
828
19%
4355
23%
814
60%
814
20%
2475
February1st to 10thNight
46%
760
26%
2470
18%
760
57%
760
35%
1362
February11th to 20thNight
45%
742
26%
2305
18%
740
56%
740
34%
1318
February21st to endNight
39%
628
28%
1884
18%
628
50%
628
33%
1116
March1st to 10thNight
45%
754
30%
3411
17%
744
54%
744
24%
1871
March11th to 20thNight
49%
751
21%
3465
18%
740
55%
740
21%
2066
March21st to endNight
42%
798
17%
3687
14%
781
55%
781
20%
2286
April1st to 10thNight
37%
570
27%
1900
16%
570
52%
570
32%
1050
April11th to 20thNight
42%
563
26%
1877
17%
563
55%
563
32%
1028
April21st to endNight
43%
570
28%
1900
18%
570
58%
570
35%
1012
May1st to 10thNight
48%
569
32%
2880
22%
559
58%
559
27%
1291
May11th to 20thNight
50%
551
20%
2670
17%
541
57%
541
25%
1227
May21st to endNight
52%
603
23%
2718
16%
593
62%
593
33%
1115
June1st to 10thNight
66%
570
32%
1520
22%
570
73%
570
51%
798
June11th to 20thNight
66%
570
32%
1520
24%
570
71%
570
58%
758
June21st to endNight
71%
570
26%
1520
20%
570
74%
570
47%
843
July1st to 10thNight
73%
541
27%
2136
15%
535
75%
535
28%
1101
July11th to 20thNight
77%
535
16%
2433
16%
533
78%
533
24%
1298
July21st to endNight
72%
607
11%
2622
10%
569
74%
569
18%
1522
August1st to 10thNight
74%
554
11%
2736
15%
545
74%
545
17%
1759
August11th to 20thNight
72%
545
15%
2831
23%
543
74%
543
20%
1537
August21st to endNight
71%
612
17%
3282
24%
605
73%
605
18%
2002
September1st to 10thNight
72%
570
27%
1900
28%
570
76%
570
33%
1059
September11th to 20thNight
67%
570
34%
1900
32%
570
71%
570
37%
997
September21st to endNight
69%
708
31%
2156
25%
708
74%
708
46%
1110
October1st to 10thNight
59%
740
43%
3357
21%
740
65%
740
37%
1344
October11th to 20thNight
62%
752
27%
3541
22%
740
73%
740
30%
1861
October21st to endNight
59%
821
38%
3853
24%
813
70%
813
36%
1632
November1st to 10thNight
63%
804
37%
2364
25%
804
71%
804
52%
1155
November11th to 20thNight
61%
1000
37%
2600
22%
1000
69%
1000
59%
1318
November21st to endNight
53%
1000
31%
2730
19%
1000
61%
1000
41%
1562
December1st to 10thNight
54%
978
28%
2737
18%
978
60%
978
41%
1538
December11th to 20thNight
48%
948
24%
3130
16%
948
54%
948
29%
1861
December21st to endNight
41%
1036
14%
4666
14%
1026
47%
1026
20%
2623

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%6%25%44446%7%53%
105255
Night
6%8%25%33435%7%54%
103194
TransparencyDay
28%6%9%22%24%11%
105014
Night
30%5%10%22%24%9%
103024
SeeingDay
10%14%28%28%15%4
15337
Night
10%5%23%41%19%2
25511

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
310%46%33335%7%54%
2766
11th to 20thDay
413%46%33335%9%49%
2860
21st to endDay
5%11%36%333346%51%
3146
February1st to 10thDay
313%36%433345%52%
1710
11th to 20thDay
6%12%37%43435%7%47%
1762
21st to endDay
415%5%8%334346%46%
1570
March1st to 10thDay
412%25%43445%8%48%
3382
11th to 20thDay
6%15%36%44445%6%43%
3490
21st to endDay
6%15%47%5%45%35%6%39%
3881
April1st to 10thDay
5%7%15%444448%54%
2280
11th to 20thDay
48%24445%5%7%7%51%
2251
21st to endDay
6%6%25%5%4445%8%51%
2280
May1st to 10thDay
6%5%2443445%6%58%
3883
11th to 20thDay
5%6%25%5%5%6%5%8%8%47%
4134
21st to endDay
431433446%6%63%
4825
June1st to 10thDay
421333446%8%61%
2660
11th to 20thDay
3213333345%69%
2660
21st to endDay
231445%5%5%7%8%57%
2660
July1st to 10thDay
4214445%46%7%59%
4410
11th to 20thDay
22145%7%9%9%11%11%39%
4110
21st to endDay
44145%6%7%6%8%9%46%
4454
August1st to 10thDay
6%5%26%6%7%7%6%9%11%34%
4092
11th to 20thDay
42145%6%5%5%9%10%48%
3813
21st to endDay
6%326%5%6%7%6%9%10%40%
4180
September1st to 10thDay
8%5%25%45%446%7%51%
2280
11th to 20thDay
8%415%4445%46%55%
2280
21st to endDay
9%314323345%63%
2019
October1st to 10thDay
6%213222245%69%
3170
11th to 20thDay
12%5%1433435%6%54%
3150
21st to endDay
6%5%2322223468%
3438
November1st to 10thDay
5%5%12222245%69%
1914
11th to 20thDay
3413222245%72%
1800
21st to endDay
6%9%2333214462%
1665
December1st to 10thDay
6%9%26%122246%60%
1560
11th to 20thDay
6%12%35%43345%6%49%
1926
21st to endDay
5%10%46%33335%5%53%
2794
January1st to 10thNight
410%49%43435%6%49%
4218
11th to 20thNight
314%45%224346%52%
4110
21st to endNight
6%15%37%333246%48%
4521
February1st to 10thNight
5%12%35%222335%57%
2470
11th to 20thNight
7%10%35%323335%57%
2304
21st to endNight
6%15%45%322245%52%
1884
March1st to 10thNight
416%25%33435%6%50%
3477
11th to 20thNight
9%13%36%433346%44%
3490
21st to endNight
9%13%37%444345%44%
3770
April1st to 10thNight
7%8%2433335%6%55%
1900
11th to 20thNight
8%6%25%443446%54%
1877
21st to endNight
7%6%14333446%58%
1900
May1st to 10thNight
8%5%2343235%5%62%
3082
11th to 20thNight
6%5%244445%6%9%54%
2756
21st to endNight
7%313333245%66%
2762
June1st to 10thNight
3313335%347%65%
1520
11th to 20thNight
3313333345%70%
1520
21st to endNight
4214345%5%7%8%57%
1520
July1st to 10thNight
4325%4345%6%6%58%
2555
11th to 20thNight
2315%5%5%6%6%10%13%44%
2860
21st to endNight
4426%46%6%7%9%10%42%
3109
August1st to 10thNight
6%5%28%7%7%7%5%9%12%32%
2847
11th to 20thNight
4326%5%5%6%5%9%12%43%
3026
21st to endNight
6%5%28%7%6%6%5%7%12%35%
3487
September1st to 10thNight
6%326%5%5%5%47%9%48%
1900
11th to 20thNight
8%325%44435%6%57%
1900
21st to endNight
8%314233345%64%
2156
October1st to 10thNight
8%313222245%69%
3800
11th to 20thNight
11%5%25%333346%56%
3778
21st to endNight
8%5%2322223468%
4120
November1st to 10thNight
5%6%1322225%6%66%
2364
11th to 20thNight
3413223235%73%
2600
21st to endNight
8%10%24222235%61%
2730
December1st to 10thNight
6%9%25%222235%61%
2737
11th to 20thNight
7%10%26%33436%8%49%
3271
21st to endNight
7%12%47%43322452%
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
30%5%15%26%21%3
2767
11th to 20thDay
32%10%18%26%13%1
2860
21st to endDay
35%5%9%30%18%3
3146
February1st to 10thDay
34%414%24%19%5%
1710
11th to 20thDay
37%38%26%22%3
1771
21st to endDay
41%36%17%28%5%
1570
March1st to 10thDay
33%6%5%24%27%4
3382
11th to 20thDay
40%6%8%28%15%3
3490
21st to endDay
44%6%6%21%20%3
3881
April1st to 10thDay
29%5%8%23%25%11%
2280
11th to 20thDay
29%5%6%21%27%11%
2254
21st to endDay
30%5%6%23%28%7%
2280
May1st to 10thDay
25%5%7%16%28%18%
3883
11th to 20thDay
29%9%9%23%21%9%
4137
21st to endDay
18%6%412%40%19%
4825
June1st to 10thDay
18%48%24%27%18%
2660
11th to 20thDay
16%4415%27%34%
2660
21st to endDay
21%5%7%18%25%23%
2660
July1st to 10thDay
21%6%9%11%22%31%
4341
11th to 20thDay
25%11%16%29%15%5%
4041
21st to endDay
27%10%19%21%15%8%
4314
August1st to 10thDay
37%11%19%15%11%7%
4078
11th to 20thDay
26%9%15%19%18%13%
3851
21st to endDay
32%9%14%21%19%6%
4179
September1st to 10thDay
30%6%9%18%24%13%
2280
11th to 20thDay
28%6%8%18%25%16%
2280
21st to endDay
23%45%22%35%12%
2019
October1st to 10thDay
18%36%17%32%25%
3170
11th to 20thDay
29%5%5%23%29%9%
3150
21st to endDay
21%35%25%41%5%
3438
November1st to 10thDay
19%38%29%34%7%
1914
11th to 20thDay
17%37%33%35%6%
1800
21st to endDay
28%35%28%26%10%
1665
December1st to 10thDay
28%315%28%19%7%
1560
11th to 20thDay
37%6%9%26%20%3
1924
21st to endDay
34%49%20%27%7%
2794
January1st to 10thNight
38%410%26%19%2
4218
11th to 20thNight
32%8%14%29%14%3
4110
21st to endNight
38%5%9%31%15%3
4521
February1st to 10thNight
31%412%28%19%6%
2470
11th to 20thNight
33%49%27%22%5%
2305
21st to endNight
35%37%19%30%5%
1884
March1st to 10thNight
35%5%423%28%5%
3477
11th to 20thNight
41%49%24%17%4
3490
21st to endNight
41%7%8%22%19%4
3770
April1st to 10thNight
32%46%19%26%12%
1900
11th to 20thNight
31%5%6%18%28%12%
1877
21st to endNight
29%45%24%29%8%
1900
May1st to 10thNight
25%5%5%16%35%14%
3082
11th to 20thNight
25%7%11%30%19%8%
2757
21st to endNight
20%6%6%13%34%21%
2762
June1st to 10thNight
20%5%9%17%27%23%
1520
11th to 20thNight
17%36%14%22%39%
1520
21st to endNight
23%6%9%15%23%25%
1520
July1st to 10thNight
25%7%10%8%16%35%
2515
11th to 20thNight
25%9%18%31%8%8%
2806
21st to endNight
31%10%21%18%13%7%
3011
August1st to 10thNight
40%11%21%10%11%8%
2838
11th to 20thNight
32%8%20%11%17%12%
3054
21st to endNight
39%8%14%18%14%6%
3487
September1st to 10thNight
30%7%12%18%19%13%
1900
11th to 20thNight
27%5%10%15%23%20%
1900
21st to endNight
22%5%6%17%37%13%
2156
October1st to 10thNight
19%36%14%37%22%
3800
11th to 20thNight
30%45%19%32%10%
3778
21st to endNight
22%3425%39%7%
4120
November1st to 10thNight
20%37%28%34%8%
2364
11th to 20thNight
16%45%34%34%7%
2600
21st to endNight
30%26%25%29%7%
2730
December1st to 10thNight
29%313%29%22%4
2737
11th to 20thNight
35%5%11%25%21%2
3272
21st to endNight
39%39%20%25%4
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
17%11%33%28%9%2
270
11th to 20thDay
18%14%34%26%8%1
270
21st to endDay
8%10%38%33%8%3
297
February1st to 10thDay
12%19%34%29%41
270
11th to 20thDay
17%19%34%24%6%
270
21st to endDay
19%25%35%18%4
225
March1st to 10thDay
17%27%26%25%5%
420
11th to 20thDay
16%22%31%22%8%1
460
21st to endDay
19%30%33%13%4
506
April1st to 10thDay
13%30%33%16%6%2
460
11th to 20thDay
18%33%29%14%5%1
452
21st to endDay
15%28%36%15%6%1
460
May1st to 10thDay
14%26%38%16%5%1
463
11th to 20thDay
12%18%33%24%12%2
525
21st to endDay
11%18%28%28%13%2
734
June1st to 10thDay
5%9%27%35%20%4
680
11th to 20thDay
5%9%34%30%17%5%
680
21st to endDay
310%27%34%21%6%
680
July1st to 10thDay
5%420%34%31%7%
664
11th to 20thDay
5%415%33%30%13%
484
21st to endDay
8%216%33%30%11%
531
August1st to 10thDay
8%5%19%39%20%9%
487
11th to 20thDay
5%422%36%25%9%
477
21st to endDay
7%323%35%26%6%
539
September1st to 10thDay
8%6%23%31%24%8%
490
11th to 20thDay
7%7%32%36%14%4
490
21st to endDay
10%10%24%31%18%7%
371
October1st to 10thDay
12%11%21%26%22%8%
300
11th to 20thDay
12%13%26%28%19%2
300
21st to endDay
11%14%24%33%16%2
330
November1st to 10thDay
11%18%23%35%12%1
300
11th to 20thDay
315%31%34%16%1
300
21st to endDay
16%10%29%29%15%1
300
December1st to 10thDay
12%15%29%27%12%4
285
11th to 20thDay
10%11%36%29%13%1
270
21st to endDay
19%13%34%27%7%
297
January1st to 10thNight
10%6%25%41%15%3
829
11th to 20thNight
9%6%31%38%14%2
760
21st to endNight
11%6%25%42%13%3
836
February1st to 10thNight
12%5%33%40%9%1
760
11th to 20thNight
12%6%32%42%9%
744
21st to endNight
16%6%35%38%5%
628
March1st to 10thNight
12%10%28%38%10%1
760
11th to 20thNight
9%9%25%40%16%1
760
21st to endNight
12%11%30%37%9%1
803
April1st to 10thNight
13%9%37%34%6%
570
11th to 20thNight
12%9%33%36%10%1
563
21st to endNight
11%9%34%34%12%1
570
May1st to 10thNight
10%9%30%39%13%
570
11th to 20thNight
11%6%24%43%15%1
561
21st to endNight
11%7%25%38%18%1
617
June1st to 10thNight
4321%48%22%1
570
11th to 20thNight
45%22%48%20%1
570
21st to endNight
5%216%44%31%1
570
July1st to 10thNight
4110%49%35%1
555
11th to 20thNight
317%41%42%7%
552
21st to endNight
6%17%32%48%5%
624
August1st to 10thNight
5%17%32%50%4
567
11th to 20thNight
5%19%44%38%4
564
21st to endNight
6%110%42%37%4
627
September1st to 10thNight
8%29%45%33%4
570
11th to 20thNight
8%313%45%29%2
570
21st to endNight
9%415%41%28%4
708
October1st to 10thNight
13%418%43%21%2
760
11th to 20thNight
9%224%42%19%4
760
21st to endNight
10%423%40%20%4
836
November1st to 10thNight
9%221%46%19%2
804
11th to 20thNight
5%5%27%45%16%3
1000
21st to endNight
14%6%24%35%19%3
1000
December1st to 10thNight
11%7%24%44%12%2
978
11th to 20thNight
15%6%25%40%13%1
950
21st to endNight
14%7%29%40%8%1
1045
Page generated at 2024-12-03 04:45:10. Version ac07

Copyright © 2024 Attilla Danko.


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