Hobbs State Park
Clear Sky Chart
History

This sumarizes the distribution of each different forecast outcome for the Hobbs State Park clear sky chart from 2005-11-06 to 2024-10-24.

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
38%
25064
23%
95598
14%
24861
49%
24861
24%
54634

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
23%
943
21%
4019
8%
926
37%
926
16%
2543
January11th to 20thNight
18%
949
21%
4005
5%
930
31%
930
18%
2272
January21st to endNight
22%
1039
18%
4479
7%
1023
35%
1023
15%
2886
February1st to 10thNight
19%
950
20%
2470
5%
950
28%
950
23%
1689
February11th to 20thNight
17%
929
19%
2404
4%
925
26%
925
25%
1584
February21st to endNight
16%
505
24%
1761
8%
505
34%
505
18%
1068
March1st to 10thNight
23%
565
27%
3381
12%
555
39%
555
13%
1901
March11th to 20thNight
23%
564
23%
3435
10%
550
35%
550
13%
1704
March21st to endNight
21%
623
13%
3705
8%
605
34%
605
11%
2191
April1st to 10thNight
26%
570
24%
1971
12%
570
43%
570
25%
1110
April11th to 20thNight
28%
563
24%
1875
15%
563
43%
563
26%
1096
April21st to endNight
24%
570
20%
1900
8%
570
41%
570
21%
1210
May1st to 10thNight
33%
564
24%
2828
13%
559
45%
559
19%
1591
May11th to 20thNight
42%
545
16%
2782
17%
541
49%
541
18%
1618
May21st to endNight
43%
607
14%
3079
13%
593
53%
593
19%
1731
June1st to 10thNight
64%
570
22%
1710
18%
570
70%
570
41%
920
June11th to 20thNight
60%
570
23%
1710
17%
570
65%
570
45%
891
June21st to endNight
68%
570
25%
1710
21%
570
73%
570
50%
854
July1st to 10thNight
69%
542
18%
2658
17%
535
73%
535
25%
1403
July11th to 20thNight
79%
534
23%
2364
28%
533
81%
533
38%
1074
July21st to endNight
73%
609
20%
2821
29%
569
76%
569
27%
1443
August1st to 10thNight
74%
551
30%
2503
25%
544
77%
544
34%
1084
August11th to 20thNight
70%
551
18%
2672
29%
543
73%
543
25%
1408
August21st to endNight
71%
607
23%
3002
31%
605
75%
605
34%
1279
September1st to 10thNight
67%
570
29%
1900
30%
570
71%
570
40%
966
September11th to 20thNight
62%
570
28%
2028
28%
570
67%
570
33%
1107
September21st to endNight
59%
590
31%
2110
29%
590
65%
590
36%
1070
October1st to 10thNight
58%
760
33%
2280
23%
760
65%
760
47%
1156
October11th to 20thNight
38%
760
30%
2280
14%
760
51%
760
37%
1266
October21st to endNight
32%
805
27%
2413
14%
805
44%
805
30%
1449
November1st to 10thNight
35%
740
33%
2220
15%
740
51%
740
37%
1212
November11th to 20thNight
33%
788
30%
2308
14%
788
47%
788
33%
1333
November21st to endNight
27%
950
25%
2614
10%
950
39%
950
28%
1645
December1st to 10thNight
23%
950
23%
2660
7%
950
36%
950
27%
1702
December11th to 20thNight
23%
949
23%
3077
8%
948
34%
948
19%
2017
December21st to endNight
20%
1042
16%
4464
7%
1026
33%
1026
13%
3161

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
11%7%26%44435%7%45%
100560
Night
12%7%25%43435%7%49%
98278
TransparencyDay
38%6%12%25%17%3
100372
Night
35%5%11%25%19%4
98137
SeeingDay
16%11%27%25%16%4
15437
Night
16%12%29%29%13%1
25224

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
14%13%35%332345%44%
2847
11th to 20thDay
10%8%48%334346%47%
2850
21st to endDay
22%10%35%23323443%
3135
February1st to 10thDay
17%12%36%5%44236%39%
1710
11th to 20thDay
15%10%37%433336%42%
1664
21st to endDay
16%11%46%434345%40%
1708
March1st to 10thDay
15%8%26%333345%46%
3436
11th to 20thDay
12%7%35%33435%6%49%
3480
21st to endDay
16%10%38%5%5%4345%36%
3814
April1st to 10thDay
12%7%26%44436%7%44%
2209
11th to 20thDay
16%7%36%5%45%346%40%
2254
21st to endDay
18%9%37%5%44335%39%
2280
May1st to 10thDay
18%8%38%5%5%5%46%6%34%
4049
11th to 20thDay
11%7%37%5%45%46%6%41%
4082
21st to endDay
13%6%27%5%5%5%46%8%38%
4477
June1st to 10thDay
7%425%5%46%5%7%10%44%
2470
11th to 20thDay
6%425%5%6%5%5%7%9%47%
2470
21st to endDay
431445%6%46%10%53%
2470
July1st to 10thDay
10%5%26%5%5%5%5%7%10%41%
4120
11th to 20thDay
5%424445%47%11%49%
4120
21st to endDay
6%426%5%5%6%5%8%11%42%
4465
August1st to 10thDay
441434436%8%58%
4104
11th to 20thDay
10%5%25%45%5%46%8%47%
3959
21st to endDay
4425%44446%9%54%
4180
September1st to 10thDay
11%5%25%34335%6%53%
2280
11th to 20thDay
10%6%36%445%35%8%46%
2147
21st to endDay
6%5%25%34435%8%54%
2049
October1st to 10thDay
10%425%42435%7%55%
1900
11th to 20thDay
13%5%24322245%58%
1900
21st to endDay
18%7%35%333235%49%
2010
November1st to 10thDay
12%6%24243236%56%
1858
11th to 20thDay
12%7%25%333445%50%
1867
21st to endDay
17%9%24323346%47%
1559
December1st to 10thDay
14%8%36%334445%46%
1520
11th to 20thDay
13%12%37%6%4424442%
1982
21st to endDay
15%18%6%6%444345%30%
3135
January1st to 10thNight
12%10%5%8%44435%5%40%
4108
11th to 20thNight
12%7%28%45%7%235%45%
4120
21st to endNight
21%11%45%322235%42%
4532
February1st to 10thNight
16%10%37%343347%40%
2470
11th to 20thNight
15%9%36%433335%46%
2403
21st to endNight
14%9%36%5%33345%45%
1761
March1st to 10thNight
17%9%26%33335%5%45%
3419
11th to 20thNight
13%8%26%433346%49%
3480
21st to endNight
14%9%37%5%44346%40%
3817
April1st to 10thNight
12%7%25%34335%6%50%
1971
11th to 20thNight
14%6%24335%35%7%47%
1875
21st to endNight
18%7%26%34445%5%43%
1900
May1st to 10thNight
13%8%25%44435%8%44%
2839
11th to 20thNight
12%7%36%5%5%446%7%42%
2823
21st to endNight
13%6%36%44436%9%42%
3090
June1st to 10thNight
6%41434446%9%55%
1710
11th to 20thNight
5%323335%47%11%55%
1710
21st to endNight
231333446%9%62%
1710
July1st to 10thNight
9%5%25%43446%9%49%
2850
11th to 20thNight
321333436%9%63%
2850
21st to endNight
5%426%44447%9%50%
3098
August1st to 10thNight
221344447%10%58%
2836
11th to 20thNight
7%5%16%345%46%8%52%
2874
21st to endNight
331334347%8%61%
3476
September1st to 10thNight
7%5%2433435%7%58%
1900
11th to 20thNight
9%5%25%43335%7%53%
2028
21st to endNight
7%5%15%44335%6%56%
2110
October1st to 10thNight
6%31333336%8%61%
2280
11th to 20thNight
13%413333246%57%
2280
21st to endNight
17%6%25%23323452%
2413
November1st to 10thNight
12%5%14323236%59%
2220
11th to 20thNight
11%7%14234345%55%
2308
21st to endNight
15%8%25%423336%49%
2614
December1st to 10thNight
14%9%36%333346%47%
2660
11th to 20thNight
14%10%47%44323444%
3211
21st to endNight
17%15%6%8%43323434%
4532

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
43%36%26%20%2
2848
11th to 20thDay
36%413%25%17%4
2850
21st to endDay
47%27%21%18%5%
3135
February1st to 10thDay
49%49%21%14%4
1710
11th to 20thDay
45%39%23%17%3
1673
21st to endDay
47%37%19%16%8%
1708
March1st to 10thDay
40%5%6%19%19%10%
3436
11th to 20thDay
36%411%24%20%4
3480
21st to endDay
50%5%9%23%12%1
3814
April1st to 10thDay
39%412%24%18%4
2209
11th to 20thDay
45%5%11%18%17%3
2254
21st to endDay
49%5%8%22%14%2
2280
May1st to 10thDay
47%7%10%20%14%1
4087
11th to 20thDay
41%8%12%24%14%
4086
21st to endDay
41%9%14%21%14%1
4489
June1st to 10thDay
33%7%17%28%13%1
2470
11th to 20thDay
31%6%14%29%16%2
2470
21st to endDay
25%7%16%30%18%4
2470
July1st to 10thDay
35%8%18%24%14%2
4056
11th to 20thDay
26%7%14%34%18%1
4051
21st to endDay
31%10%21%28%9%
4325
August1st to 10thDay
24%6%16%29%21%4
4090
11th to 20thDay
35%7%15%28%14%1
3998
21st to endDay
26%6%15%36%14%3
4179
September1st to 10thDay
32%5%11%26%18%9%
2280
11th to 20thDay
35%5%11%22%24%3
2147
21st to endDay
30%5%9%26%27%4
2049
October1st to 10thDay
29%5%10%24%24%7%
1900
11th to 20thDay
31%36%23%29%8%
1900
21st to endDay
40%36%26%18%7%
2010
November1st to 10thDay
30%48%28%23%8%
1858
11th to 20thDay
36%37%23%22%9%
1867
21st to endDay
40%39%19%25%4
1559
December1st to 10thDay
41%39%26%18%3
1520
11th to 20thDay
46%45%18%24%3
1979
21st to endDay
54%5%8%17%13%2
3135
January1st to 10thNight
45%48%22%19%3
4108
11th to 20thNight
38%414%22%20%2
4120
21st to endNight
48%29%19%19%3
4532
February1st to 10thNight
45%310%22%15%4
2470
11th to 20thNight
42%38%26%18%4
2404
21st to endNight
42%38%19%21%7%
1761
March1st to 10thNight
42%5%7%19%18%9%
3419
11th to 20thNight
36%5%10%26%19%4
3480
21st to endNight
43%6%10%26%13%1
3817
April1st to 10thNight
35%411%25%20%6%
1971
11th to 20thNight
35%5%10%24%22%5%
1875
21st to endNight
42%6%10%25%16%2
1900
May1st to 10thNight
37%7%13%24%16%4
2866
11th to 20thNight
38%8%15%24%14%1
2824
21st to endNight
37%8%15%27%13%1
3099
June1st to 10thNight
23%7%16%32%17%3
1710
11th to 20thNight
21%7%15%33%21%3
1710
21st to endNight
18%6%15%32%23%6%
1710
July1st to 10thNight
30%7%20%24%15%4
2805
11th to 20thNight
18%6%12%39%23%2
2796
21st to endNight
27%8%18%33%13%
2999
August1st to 10thNight
19%6%16%35%23%1
2826
11th to 20thNight
29%7%18%27%17%2
2901
21st to endNight
19%6%14%37%22%3
3476
September1st to 10thNight
25%5%11%30%20%9%
1900
11th to 20thNight
32%5%10%22%26%5%
2028
21st to endNight
28%48%24%30%5%
2110
October1st to 10thNight
21%413%25%27%10%
2280
11th to 20thNight
30%46%22%28%11%
2280
21st to endNight
37%37%22%22%8%
2413
November1st to 10thNight
29%38%26%26%9%
2220
11th to 20thNight
32%48%23%26%8%
2308
21st to endNight
39%38%21%25%5%
2614
December1st to 10thNight
40%410%22%20%3
2660
11th to 20thNight
45%36%21%21%4
3213
21st to endNight
53%5%9%18%12%3
4532

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
28%19%36%14%3
270
11th to 20thDay
27%24%37%11%1
270
21st to endDay
26%20%38%12%4
297
February1st to 10thDay
31%24%33%10%2
270
11th to 20thDay
27%29%30%13%1
270
21st to endDay
36%24%31%7%1
225
March1st to 10thDay
24%24%34%14%4
270
11th to 20thDay
31%20%35%12%1
270
21st to endDay
33%21%36%7%2
297
April1st to 10thDay
25%25%31%12%6%1
389
11th to 20thDay
27%17%35%15%5%
452
21st to endDay
28%18%28%20%5%
460
May1st to 10thDay
20%15%39%19%6%
633
11th to 20thDay
17%10%34%25%13%1
675
21st to endDay
12%11%36%22%14%4
734
June1st to 10thDay
11%322%35%23%6%
680
11th to 20thDay
7%426%37%21%6%
680
21st to endDay
3432%35%22%4
680
July1st to 10thDay
9%417%33%28%9%
671
11th to 20thDay
5%117%38%30%8%
668
21st to endDay
8%212%34%33%10%
739
August1st to 10thDay
9%314%40%29%4
676
11th to 20thDay
14%211%34%31%8%
622
21st to endDay
9%211%34%31%13%
539
September1st to 10thDay
12%213%34%30%8%
490
11th to 20thDay
7%320%41%22%7%
357
21st to endDay
11%5%26%30%22%5%
300
October1st to 10thDay
11%8%28%30%17%6%
300
11th to 20thDay
14%11%44%19%10%1
300
21st to endDay
30%15%33%17%5%
306
November1st to 10thDay
17%15%41%16%9%2
270
11th to 20thDay
17%18%40%14%10%1
270
21st to endDay
28%17%30%21%31
270
December1st to 10thDay
21%20%34%16%7%1
270
11th to 20thDay
23%21%34%15%6%1
270
21st to endDay
25%25%36%12%2
297
January1st to 10thNight
20%19%35%23%4
950
11th to 20thNight
21%23%35%18%3
950
21st to endNight
19%21%34%21%4
1045
February1st to 10thNight
22%18%37%19%3
950
11th to 20thNight
21%21%39%17%2
929
21st to endNight
23%21%36%18%1
505
March1st to 10thNight
23%14%36%24%3
570
11th to 20thNight
23%16%34%23%4
570
21st to endNight
21%15%40%18%6%
627
April1st to 10thNight
17%19%36%24%4
570
11th to 20thNight
18%15%37%23%7%
563
21st to endNight
20%15%37%19%8%
570
May1st to 10thNight
15%7%39%30%8%
570
11th to 20thNight
16%8%28%34%13%1
561
21st to endNight
14%6%29%31%16%4
617
June1st to 10thNight
8%417%40%30%1
570
11th to 20thNight
5%227%42%22%2
570
21st to endNight
3222%46%25%3
570
July1st to 10thNight
6%213%38%37%4
555
11th to 20thNight
4111%46%32%5%
552
21st to endNight
6%28%43%35%6%
624
August1st to 10thNight
5%112%42%37%4
567
11th to 20thNight
8%113%42%32%4
564
21st to endNight
6%113%40%34%6%
627
September1st to 10thNight
10%213%42%31%3
570
11th to 20thNight
11%215%40%28%4
570
21st to endNight
9%5%20%38%25%4
590
October1st to 10thNight
7%426%35%23%4
760
11th to 20thNight
14%9%35%30%12%
760
21st to endNight
21%11%32%24%11%
805
November1st to 10thNight
14%11%36%27%11%1
740
11th to 20thNight
17%14%34%29%7%
788
21st to endNight
22%15%33%23%7%
950
December1st to 10thNight
20%14%38%22%5%
950
11th to 20thNight
24%15%31%25%4
950
21st to endNight
22%19%35%20%4
1045
Page generated at 2024-10-21 01:20:05. Version ac07

Copyright © 2024 Attilla Danko.


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