Pueblo West
Clear Sky Chart
History

This sumarizes the distribution of each different forecast outcome for the Pueblo West clear sky chart from 2005-11-05 to 2017-04-24.

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
60%
15441
30%
45590
21%
15401
68%
15401
44%
24155

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 15thNight
55%
898
32%
2506
21%
895
65%
895
50%
1297
January16th to endNight
54%
783
36%
2511
24%
783
69%
783
47%
1204
February1st to 15thNight
52%
699
26%
2207
17%
699
62%
699
39%
1208
February16th to endNight
47%
632
37%
1894
19%
632
64%
632
47%
963
March1st to 15thNight
55%
720
30%
2124
19%
720
63%
720
47%
1117
March16th to endNight
53%
670
32%
2014
18%
670
66%
670
44%
1048
April1st to 15thNight
45%
539
26%
1798
15%
539
62%
539
40%
912
April16th to endNight
50%
522
24%
1740
21%
522
60%
522
34%
958
May1st to 15thNight
51%
495
24%
1541
21%
495
59%
495
32%
909
May16th to endNight
60%
514
21%
1372
14%
513
66%
513
41%
802
June1st to 15thNight
62%
495
25%
1320
19%
495
67%
495
48%
712
June16th to endNight
71%
495
22%
1320
17%
495
75%
495
47%
739
July1st to 15thNight
69%
465
19%
1240
15%
465
71%
465
34%
791
July16th to endNight
80%
522
22%
1352
20%
489
80%
489
40%
781
August1st to 15thNight
72%
494
17%
1567
18%
491
73%
491
31%
924
August16th to endNight
77%
525
23%
1750
27%
525
78%
525
35%
969
September1st to 15thNight
72%
495
30%
1650
31%
495
77%
495
37%
897
September16th to endNight
73%
492
38%
1782
38%
492
81%
492
50%
776
October1st to 15thNight
62%
627
33%
1947
22%
627
69%
627
46%
969
October16th to endNight
69%
724
38%
2132
25%
724
76%
724
54%
1025
November1st to 15thNight
65%
875
37%
2275
22%
875
72%
875
61%
1147
November16th to endNight
60%
900
39%
2340
23%
900
67%
900
57%
1210
December1st to 15thNight
53%
900
29%
2520
14%
900
64%
900
47%
1341
December16th to endNight
49%
960
32%
2688
17%
960
60%
960
44%
1456

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
431332446%8%58%
46026
Night
441332345%7%59%
45767
Cloud CoverDay
431332346%8%58%
46024
Night
442332345%7%59%
45767
TransparencyDay
22%5%10%23%25%12%
45706
Night
23%5%10%24%25%10%
45590
SeeingDay
7%6%24%31%22%7%
5133
Night
6%224%44%20%1
15449

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 15thDay
3321212348%66%
1432
16th to endDay
2423213246%66%
1725
February1st to 15thDay
35%24423347%58%
1654
16th to endDay
15%15%424436%60%
1580
March1st to 15thDay
231332445%8%60%
1833
16th to endDay
45%2332335%9%56%
2209
April1st to 15thDay
5%5%1222445%9%57%
2150
16th to endDay
9%41242436%7%53%
2079
May1st to 15thDay
7%5%244245%5%9%47%
2078
16th to endDay
6%2133245%7%10%52%
2387
June1st to 15thDay
42133246%7%10%52%
2310
16th to endDay
11232446%10%61%
2310
July1st to 15thDay
4313325%6%7%11%49%
2310
16th to endDay
3213425%7%9%11%49%
2405
August1st to 15thDay
4113435%6%8%11%48%
2052
16th to endDay
32233245%6%11%55%
2100
September1st to 15thDay
5%21442336%8%56%
1980
16th to endDay
212222447%69%
1846
October1st to 15thDay
4213213246%66%
1680
16th to endDay
4311212235%70%
1727
November1st to 15thDay
2213113347%68%
1583
16th to endDay
2312212336%69%
1620
December1st to 15thDay
241431445%7%60%
1440
16th to endDay
342422335%8%57%
1536
January1st to 15thNight
1424313337%64%
2506
16th to endNight
2424223345%65%
2511
February1st to 15thNight
46%25%32245%6%56%
2197
16th to endNight
25%24312345%64%
1894
March1st to 15thNight
45%1322335%6%61%
2124
16th to endNight
4423213346%63%
2014
April1st to 15thNight
5%5%13314448%58%
1798
16th to endNight
10%5%23323346%53%
1740
May1st to 15thNight
12%5%23314447%50%
1540
16th to endNight
7%3132245%49%53%
1371
June1st to 15thNight
4112425%46%7%59%
1320
16th to endNight
22134245%8%9%56%
1320
July1st to 15thNight
7%2145%46%6%8%9%43%
1320
16th to endNight
32135%36%7%8%11%46%
1452
August1st to 15thNight
32146%36%8%7%8%47%
1576
16th to endNight
6%313435%5%7%10%49%
1750
September1st to 15thNight
7%21442445%9%52%
1650
16th to endNight
322222346%68%
1782
October1st to 15thNight
6%41232346%63%
1947
16th to endNight
4312212346%67%
2132
November1st to 15thNight
1312212346%69%
2275
16th to endNight
3413211335%68%
2340
December1st to 15thNight
1424424349%58%
2520
16th to endNight
36%33313348%58%
2688

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 15thDay
3322213348%65%
1432
16th to endDay
2423312346%65%
1725
February1st to 15thDay
25%2443235%7%57%
1654
16th to endDay
15%2442435%5%60%
1580
March1st to 15thDay
231332346%7%60%
1833
16th to endDay
45%1342345%9%56%
2207
April1st to 15thDay
5%41222346%9%57%
2150
16th to endDay
8%5%1332445%8%52%
2079
May1st to 15thDay
7%5%244245%6%9%47%
2078
16th to endDay
5%3133246%7%10%52%
2387
June1st to 15thDay
4213325%6%7%10%52%
2310
16th to endDay
11123245%6%9%61%
2310
July1st to 15thDay
4313425%5%8%11%49%
2310
16th to endDay
22134347%8%12%48%
2405
August1st to 15thDay
3113435%6%8%11%49%
2052
16th to endDay
32133245%6%10%56%
2100
September1st to 15thDay
5%31432435%9%56%
1980
16th to endDay
212312347%69%
1846
October1st to 15thDay
43221335%5%66%
1680
16th to endDay
5%312112335%71%
1727
November1st to 15thDay
2213212347%68%
1583
16th to endDay
2313212336%68%
1620
December1st to 15thDay
242431345%7%60%
1440
16th to endDay
342431336%9%56%
1536
January1st to 15thNight
1423323236%64%
2506
16th to endNight
2423323345%65%
2511
February1st to 15thNight
36%35%412346%56%
2197
16th to endNight
26%24312345%63%
1894
March1st to 15thNight
4422313446%61%
2124
16th to endNight
45%23213346%63%
2014
April1st to 15thNight
5%5%1322345%8%58%
1798
16th to endNight
10%6%24313347%53%
1740
May1st to 15thNight
12%6%1331445%6%50%
1540
16th to endNight
7%31322446%8%54%
1371
June1st to 15thNight
32123245%5%8%60%
1320
16th to endNight
21124245%8%8%56%
1320
July1st to 15thNight
7%2135%36%7%7%9%43%
1320
16th to endNight
3213436%6%9%11%46%
1452
August1st to 15thNight
3315%5%36%6%7%8%47%
1576
16th to endNight
6%313425%5%7%10%48%
1750
September1st to 15thNight
6%324425%46%9%52%
1650
16th to endNight
321222235%6%67%
1782
October1st to 15thNight
6%313212336%63%
1947
16th to endNight
4312212346%67%
2132
November1st to 15thNight
1322212346%69%
2275
16th to endNight
3413211335%68%
2340
December1st to 15thNight
15%2442345%9%58%
2520
16th to endNight
35%3331345%7%58%
2688

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 15thDay
17%38%33%28%8%
1433
16th to endDay
20%37%28%30%10%
1725
February1st to 15thDay
26%39%30%22%7%
1655
16th to endDay
24%35%24%29%11%
1580
March1st to 15thDay
20%410%24%27%12%
1833
16th to endDay
25%410%23%26%9%
2209
April1st to 15thDay
23%410%24%24%12%
2150
16th to endDay
28%5%10%24%21%9%
2079
May1st to 15thDay
32%6%13%19%21%6%
2078
16th to endDay
23%8%16%23%17%11%
2391
June1st to 15thDay
22%7%13%21%19%15%
2310
16th to endDay
16%5%10%20%26%20%
2310
July1st to 15thDay
25%8%13%20%18%13%
2161
16th to endDay
23%8%15%26%19%6%
2243
August1st to 15thDay
24%8%16%22%15%12%
2037
16th to endDay
21%6%13%23%25%9%
2100
September1st to 15thDay
25%411%22%22%14%
1980
16th to endDay
14%46%22%32%19%
1846
October1st to 15thDay
19%410%17%33%13%
1680
16th to endDay
16%36%23%33%17%
1727
November1st to 15thDay
15%38%23%30%18%
1583
16th to endDay
16%25%20%35%18%
1620
December1st to 15thDay
21%5%10%27%27%7%
1440
16th to endDay
23%411%30%22%6%
1536
January1st to 15thNight
21%38%30%28%7%
2506
16th to endNight
20%37%27%30%8%
2511
February1st to 15thNight
28%49%29%22%5%
2207
16th to endNight
22%36%27%29%10%
1894
March1st to 15thNight
23%38%25%30%8%
2124
16th to endNight
22%5%9%23%28%10%
2014
April1st to 15thNight
23%5%11%23%21%13%
1798
16th to endNight
30%412%22%20%9%
1740
May1st to 15thNight
33%6%11%21%19%7%
1541
16th to endNight
26%7%16%21%16%11%
1372
June1st to 15thNight
21%5%14%27%15%15%
1320
16th to endNight
20%8%13%18%20%18%
1320
July1st to 15thNight
33%8%15%20%14%8%
1240
16th to endNight
25%8%18%25%18%3
1352
August1st to 15thNight
28%11%15%22%12%9%
1567
16th to endNight
26%9%14%24%18%6%
1750
September1st to 15thNight
28%5%12%22%18%11%
1650
16th to endNight
17%47%23%32%15%
1782
October1st to 15thNight
22%311%17%31%13%
1947
16th to endNight
18%37%21%32%16%
2132
November1st to 15thNight
15%38%23%31%17%
2275
16th to endNight
18%25%25%31%15%
2340
December1st to 15thNight
22%411%31%24%5%
2520
16th to endNight
24%411%26%25%6%
2688

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 15thDay
12%5%24%27%23%6%
90
16th to endDay
8%230%38%17%3
96
February1st to 15thDay
6%7%32%34%17%1
90
16th to endDay
49%29%30%24%
81
March1st to 15thDay
213%31%33%15%3
123
16th to endDay
11%15%36%26%8%1
288
April1st to 15thDay
6%17%39%21%10%4
269
16th to endDay
18%14%32%24%6%2
243
May1st to 15thDay
11%11%26%33%15%1
335
16th to endDay
10%5%22%35%20%5%
437
June1st to 15thDay
5%7%22%29%27%7%
420
16th to endDay
5%318%30%31%10%
420
July1st to 15thDay
8%317%28%34%8%
400
16th to endDay
5%19%30%39%14%
390
August1st to 15thDay
3320%32%23%16%
255
16th to endDay
4419%35%26%9%
268
September1st to 15thDay
6%426%38%18%5%
255
16th to endDay
3119%31%25%19%
121
October1st to 15thDay
223%30%26%17%
90
16th to endDay
7%19%23%35%13%
96
November1st to 15thDay
213%31%37%15%
90
16th to endDay
7%10%27%41%12%1
90
December1st to 15thDay
46%34%47%5%1
90
16th to endDay
9%37%42%8%2
96
January1st to 15thNight
4329%43%17%1
900
16th to endNight
5%133%45%12%1
783
February1st to 15thNight
6%229%51%10%
704
16th to endNight
5%437%43%8%
632
March1st to 15thNight
6%330%45%13%
720
16th to endNight
7%5%29%47%10%
670
April1st to 15thNight
8%6%36%36%11%
539
16th to endNight
12%5%27%40%13%
522
May1st to 15thNight
14%426%39%16%
495
16th to endNight
8%222%41%22%1
515
June1st to 15thNight
4124%47%21%1
495
16th to endNight
3118%45%29%
495
July1st to 15thNight
7%210%43%33%2
465
16th to endNight
45%37%47%4
522
August1st to 15thNight
5%10%38%41%3
494
16th to endNight
7%5%40%43%3
525
September1st to 15thNight
8%110%43%31%4
495
16th to endNight
5%114%43%31%3
492
October1st to 15thNight
9%220%39%24%3
627
16th to endNight
6%217%43%27%3
724
November1st to 15thNight
3323%47%20%1
875
16th to endNight
5%326%47%16%1
900
December1st to 15thNight
4231%50%9%
900
16th to endNight
6%333%44%11%
960
Page generated at 2017-04-25 05:48:24. Version ac04

Copyright 2017 A. Danko


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