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 2024-01-15.

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%
24342
27%
74550
20%
24291
64%
24291
37%
41380

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
54%
828
27%
2526
20%
825
62%
825
39%
1376
January11th to 20thNight
49%
740
30%
2405
25%
740
58%
740
36%
1304
January21st to endNight
50%
792
29%
2574
23%
792
60%
792
35%
1437
February1st to 10thNight
48%
720
27%
2340
19%
720
60%
720
38%
1253
February11th to 20thNight
46%
702
25%
2180
18%
700
56%
700
33%
1266
February21st to endNight
40%
592
30%
1776
19%
592
52%
592
33%
1052
March1st to 10thNight
47%
720
28%
2016
17%
720
55%
720
38%
1155
March11th to 20thNight
50%
720
27%
1980
18%
720
56%
720
38%
1167
March21st to endNight
44%
761
27%
2147
14%
761
55%
761
35%
1287
April1st to 10thNight
38%
540
26%
1800
16%
540
52%
540
32%
994
April11th to 20thNight
42%
533
26%
1777
17%
533
56%
533
31%
977
April21st to endNight
43%
540
30%
1800
19%
540
59%
540
35%
959
May1st to 10thNight
50%
540
27%
1751
22%
540
59%
540
37%
925
May11th to 20thNight
52%
531
23%
1558
17%
531
58%
531
34%
910
May21st to endNight
53%
582
28%
1552
16%
582
62%
582
42%
861
June1st to 10thNight
67%
540
31%
1440
21%
540
73%
540
51%
757
June11th to 20thNight
67%
540
33%
1440
25%
540
71%
540
58%
719
June21st to endNight
72%
540
28%
1440
22%
540
76%
540
49%
783
July1st to 10thNight
74%
525
18%
1401
15%
525
75%
525
34%
883
July11th to 20thNight
77%
522
19%
1566
16%
522
78%
522
36%
884
July21st to endNight
73%
591
10%
1674
10%
558
74%
558
24%
1112
August1st to 10thNight
75%
537
17%
1602
16%
534
75%
534
32%
960
August11th to 20thNight
72%
534
22%
1727
24%
534
74%
534
30%
1003
August21st to endNight
72%
594
22%
1980
24%
594
73%
594
31%
1133
September1st to 10thNight
72%
540
25%
1800
26%
540
75%
540
32%
1013
September11th to 20thNight
67%
540
34%
1800
33%
540
72%
540
37%
954
September21st to endNight
69%
670
31%
2041
25%
670
74%
670
46%
1051
October1st to 10thNight
58%
720
28%
2160
20%
720
64%
720
40%
1199
October11th to 20thNight
63%
720
38%
2160
23%
720
74%
720
54%
1027
October21st to endNight
60%
792
38%
2376
24%
792
70%
792
49%
1182
November1st to 10thNight
65%
762
38%
2242
26%
762
73%
762
55%
1064
November11th to 20thNight
62%
950
38%
2470
23%
950
70%
950
58%
1258
November21st to endNight
53%
950
31%
2593
19%
950
62%
950
41%
1481
December1st to 10thNight
53%
950
26%
2660
17%
950
59%
950
40%
1510
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
6%6%244345%5%7%54%
74710
Night
6%7%24424446%57%
75099
TransparencyDay
29%5%9%22%24%10%
74430
Night
29%5%10%23%24%10%
74900
SeeingDay
11%14%28%28%15%4
14104
Night
10%5%23%41%20%2
24358

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
411%33213348%57%
1655
11th to 20thDay
6%10%33322236%59%
1660
21st to endDay
6%10%35%313345%55%
1782
February1st to 10thDay
311%35%424345%55%
1620
11th to 20thDay
7%12%46%424447%47%
1667
21st to endDay
414%6%7%434446%45%
1480
March1st to 10thDay
8%11%34434447%50%
1942
11th to 20thDay
410%45%43345%6%51%
1980
21st to endDay
7%9%35%5%34447%48%
2209
April1st to 10thDay
6%6%245%3445%8%54%
2160
11th to 20thDay
5%7%245%35%6%7%8%50%
2131
21st to endDay
6%5%25%5%35%5%5%8%51%
2160
May1st to 10thDay
6%5%245%345%6%7%52%
2204
11th to 20thDay
7%6%25%5%45%5%6%7%47%
2336
21st to endDay
6%4144345%5%6%57%
2724
June1st to 10thDay
4213425%5%6%8%61%
2520
11th to 20thDay
321232445%5%70%
2520
21st to endDay
2213435%7%6%8%58%
2520
July1st to 10thDay
5%2136%47%6%7%9%49%
2514
11th to 20thDay
3325%6%5%7%9%9%11%42%
2340
21st to endDay
6%5%25%7%5%8%9%9%10%32%
2545
August1st to 10thDay
7%5%26%7%5%6%6%8%9%40%
2328
11th to 20thDay
6%3246%47%7%8%8%44%
2174
21st to endDay
7%4245%46%6%8%9%45%
2376
September1st to 10thDay
8%425%5%35%5%6%7%50%
2160
11th to 20thDay
8%425%5%346%46%54%
2160
21st to endDay
10%313323345%63%
1914
October1st to 10thDay
11%32342346%7%56%
1800
11th to 20thDay
7%31232334469%
1800
21st to endDay
6%5%1332323468%
1980
November1st to 10thDay
5%412222246%71%
1817
11th to 20thDay
4412222345%72%
1710
21st to endDay
6%9%23323245%62%
1582
December1st to 10thDay
7%9%25%212347%59%
1520
11th to 20thDay
6%11%35%5%2445%6%49%
1926
21st to endDay
5%10%46%423345%54%
2794
January1st to 10thNight
5%10%24323347%58%
2526
11th to 20thNight
5%10%3432333460%
2405
21st to endNight
7%11%35%323236%56%
2574
February1st to 10thNight
5%11%24322335%60%
2340
11th to 20thNight
8%10%34313335%56%
2179
21st to endNight
6%15%45%322245%53%
1776
March1st to 10thNight
7%8%24323446%56%
2016
11th to 20thNight
7%9%34423346%54%
1980
21st to endNight
8%10%34324336%55%
2147
April1st to 10thNight
8%7%2432435%6%55%
1800
11th to 20thNight
9%5%25%434446%54%
1777
21st to endNight
8%5%143245%46%59%
1800
May1st to 10thNight
8%5%2342435%5%58%
1751
11th to 20thNight
9%6%24434447%52%
1558
21st to endNight
9%322434446%59%
1552
June1st to 10thNight
3213324447%65%
1440
11th to 20thNight
3213323346%70%
1440
21st to endNight
423435%6%6%8%59%
1440
July1st to 10thNight
3225%6%46%8%9%10%45%
1441
11th to 20thNight
3425%5%35%6%8%11%48%
1620
21st to endNight
6%426%5%5%8%9%10%12%34%
1773
August1st to 10thNight
5%325%6%46%5%8%10%46%
1611
11th to 20thNight
5%425%6%36%7%8%11%44%
1727
21st to endNight
6%3246%36%7%7%10%45%
1980
September1st to 10thNight
7%325%6%36%5%7%9%47%
1800
11th to 20thNight
8%325%43445%6%57%
1800
21st to endNight
8%313323435%64%
2041
October1st to 10thNight
13%413323345%58%
2160
11th to 20thNight
6%31221233472%
2160
21st to endNight
7%413322345%67%
2376
November1st to 10thNight
5%412222346%69%
2242
11th to 20thNight
3412212335%73%
2470
21st to endNight
8%9%24212335%61%
2593
December1st to 10thNight
6%9%34322336%60%
2660
11th to 20thNight
7%9%25%43345%7%50%
3271
21st to endNight
7%12%46%42332452%
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
28%415%30%18%3
1656
11th to 20thDay
30%411%31%22%2
1660
21st to endDay
34%411%30%17%5%
1782
February1st to 10thDay
32%5%14%25%19%5%
1620
11th to 20thDay
38%38%26%21%3
1676
21st to endDay
42%36%17%27%5%
1480
March1st to 10thDay
36%46%23%24%7%
1942
11th to 20thDay
34%47%25%24%5%
1980
21st to endDay
37%5%6%24%23%5%
2209
April1st to 10thDay
29%5%8%23%23%12%
2160
11th to 20thDay
30%5%7%21%26%11%
2134
21st to endDay
30%6%7%23%27%7%
2160
May1st to 10thDay
29%6%8%21%29%8%
2204
11th to 20thDay
33%7%9%21%22%8%
2339
21st to endDay
25%6%7%16%30%15%
2724
June1st to 10thDay
19%49%24%26%18%
2520
11th to 20thDay
15%4415%27%34%
2520
21st to endDay
20%5%7%18%25%24%
2520
July1st to 10thDay
28%7%13%16%17%19%
2445
11th to 20thDay
27%10%17%22%16%8%
2271
21st to endDay
37%12%24%17%9%2
2404
August1st to 10thDay
35%10%14%14%16%11%
2313
11th to 20thDay
31%8%12%19%19%11%
2174
21st to endDay
30%8%12%24%20%6%
2376
September1st to 10thDay
31%6%9%17%23%13%
2160
11th to 20thDay
28%6%8%18%24%16%
2160
21st to endDay
23%45%22%35%11%
1914
October1st to 10thDay
29%5%9%21%23%13%
1800
11th to 20thDay
20%3420%39%14%
1800
21st to endDay
23%36%27%32%8%
1980
November1st to 10thDay
17%38%30%35%7%
1817
11th to 20thDay
17%38%33%34%5%
1710
21st to endDay
28%35%29%25%10%
1582
December1st to 10thDay
29%315%27%19%7%
1520
11th to 20thDay
37%6%9%26%20%3
1924
21st to endDay
34%49%20%27%7%
2794
January1st to 10thNight
29%413%31%21%3
2526
11th to 20thNight
30%410%32%22%3
2405
21st to endNight
32%48%35%17%5%
2574
February1st to 10thNight
29%412%30%20%6%
2340
11th to 20thNight
35%49%26%22%5%
2180
21st to endNight
35%37%20%29%5%
1776
March1st to 10thNight
30%47%25%27%8%
2016
11th to 20thNight
33%36%27%23%7%
1980
21st to endNight
33%5%6%24%26%6%
2147
April1st to 10thNight
32%47%19%26%12%
1800
11th to 20thNight
32%5%6%19%27%12%
1777
21st to endNight
29%46%24%28%9%
1800
May1st to 10thNight
28%45%24%29%10%
1751
11th to 20thNight
32%5%12%20%23%8%
1559
21st to endNight
26%410%17%26%17%
1552
June1st to 10thNight
20%5%10%17%26%22%
1440
11th to 20thNight
16%36%14%22%39%
1440
21st to endNight
21%6%9%15%24%26%
1440
July1st to 10thNight
31%10%14%12%11%22%
1401
11th to 20thNight
27%9%17%22%11%14%
1566
21st to endNight
37%14%26%14%8%2
1674
August1st to 10thNight
30%10%19%14%13%13%
1602
11th to 20thNight
33%7%16%16%18%10%
1727
21st to endNight
31%8%16%19%17%8%
1980
September1st to 10thNight
31%7%13%18%18%14%
1800
11th to 20thNight
28%5%10%15%22%20%
1800
21st to endNight
22%5%5%18%36%13%
2041
October1st to 10thNight
29%48%17%24%17%
2160
11th to 20thNight
18%3418%40%16%
2160
21st to endNight
21%35%26%33%12%
2376
November1st to 10thNight
18%38%29%35%8%
2242
11th to 20thNight
17%45%35%33%6%
2470
21st to endNight
30%26%25%29%7%
2593
December1st to 10thNight
30%313%28%22%4
2660
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%15%33%25%8%1
254
21st to endDay
8%10%39%33%6%3
264
February1st to 10thDay
12%18%35%30%5%1
240
11th to 20thDay
19%19%32%24%6%
240
21st to endDay
17%27%34%18%4
198
March1st to 10thDay
17%27%26%25%5%
382
11th to 20thDay
17%22%30%22%8%1
420
21st to endDay
19%31%34%13%3
462
April1st to 10thDay
12%31%33%15%6%1
420
11th to 20thDay
19%34%28%13%5%1
412
21st to endDay
15%30%35%15%5%1
420
May1st to 10thDay
12%26%39%17%5%1
423
11th to 20thDay
13%17%34%23%11%2
483
21st to endDay
11%18%28%28%13%2
679
June1st to 10thDay
5%9%27%35%20%4
630
11th to 20thDay
5%10%34%29%18%5%
630
21st to endDay
310%28%33%20%6%
630
July1st to 10thDay
5%5%19%33%32%7%
615
11th to 20thDay
6%416%35%29%11%
444
21st to endDay
9%216%33%30%10%
487
August1st to 10thDay
8%5%20%40%20%7%
447
11th to 20thDay
5%424%36%23%8%
437
21st to endDay
7%325%35%25%5%
495
September1st to 10thDay
9%6%24%33%22%6%
450
11th to 20thDay
7%7%33%36%14%4
450
21st to endDay
10%11%26%31%15%6%
338
October1st to 10thDay
13%13%23%26%20%5%
270
11th to 20thDay
10%14%27%29%18%3
270
21st to endDay
11%15%26%31%15%2
297
November1st to 10thDay
10%18%25%33%13%1
270
11th to 20thDay
414%33%31%17%1
270
21st to endDay
16%10%30%28%15%1
270
December1st to 10thDay
13%16%31%27%10%3
270
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
10%6%30%38%14%2
740
21st to endNight
12%6%25%42%11%4
792
February1st to 10thNight
11%432%42%9%1
720
11th to 20thNight
12%7%30%42%9%
704
21st to endNight
16%6%34%39%5%
592
March1st to 10thNight
12%10%28%39%10%1
720
11th to 20thNight
9%9%25%39%17%1
720
21st to endNight
12%10%30%38%9%1
761
April1st to 10thNight
13%8%37%35%7%
540
11th to 20thNight
13%9%32%35%10%1
533
21st to endNight
11%9%34%33%12%1
540
May1st to 10thNight
10%8%29%40%13%
540
11th to 20thNight
12%5%24%43%15%2
531
21st to endNight
11%7%25%37%19%1
584
June1st to 10thNight
4321%47%23%1
540
11th to 20thNight
45%21%48%21%1
540
21st to endNight
4217%44%32%1
540
July1st to 10thNight
3110%49%36%1
525
11th to 20thNight
317%41%41%7%
522
21st to endNight
6%17%30%50%5%
591
August1st to 10thNight
5%18%33%50%4
537
11th to 20thNight
6%19%43%38%4
534
21st to endNight
5%19%42%38%4
594
September1st to 10thNight
8%19%45%33%4
540
11th to 20thNight
8%312%45%30%2
540
21st to endNight
10%315%40%28%4
670
October1st to 10thNight
14%419%41%20%2
720
11th to 20thNight
9%223%42%20%4
720
21st to endNight
10%423%39%21%4
792
November1st to 10thNight
9%220%45%20%3
762
11th to 20thNight
5%5%25%45%17%3
950
21st to endNight
14%6%23%35%19%3
950
December1st to 10thNight
11%7%25%44%12%1
950
11th to 20thNight
15%6%25%40%13%1
950
21st to endNight
14%7%29%40%8%1
1045
Page generated at 2024-01-12 14:17:42. Version ac07

Copyright 2024 Attilla Danko


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