Whispering Pines Camping Estates
Clear Sky Chart
History

This sumarizes the distribution of each different forecast outcome for the Whispering Pines Camping Estates clear sky chart from 2005-11-05 to 2017-09-23.

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
34%
15029
16%
46931
9%
14995
42%
14995
20%
31628

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
21%
719
13%
2506
5%
716
32%
716
12%
1780
January16th to endNight
19%
768
15%
2514
5%
768
31%
768
15%
1730
February1st to 15thNight
16%
704
12%
2287
2%
701
28%
701
13%
1637
February16th to endNight
19%
631
18%
1915
7%
631
33%
631
16%
1345
March1st to 15thNight
21%
720
17%
2058
8%
720
32%
720
18%
1438
March16th to endNight
25%
768
20%
2057
8%
768
35%
768
22%
1412
April1st to 15thNight
23%
718
15%
1796
4%
718
29%
718
20%
1320
April16th to endNight
31%
720
18%
1800
5%
720
38%
720
29%
1194
May1st to 15thNight
36%
453
18%
1533
10%
453
46%
453
19%
1017
May16th to endNight
48%
374
15%
1497
14%
374
54%
374
19%
937
June1st to 15thNight
47%
360
14%
1440
13%
360
56%
360
19%
902
June16th to endNight
56%
360
15%
1440
17%
360
62%
360
25%
824
July1st to 15thNight
51%
340
13%
1360
16%
340
55%
340
21%
825
July16th to endNight
60%
422
15%
1461
16%
397
65%
397
27%
847
August1st to 15thNight
63%
539
16%
1609
13%
536
65%
536
29%
1022
August16th to endNight
61%
752
20%
1898
12%
752
62%
752
34%
1238
September1st to 15thNight
49%
720
23%
1800
11%
720
54%
720
31%
1197
September16th to endNight
53%
689
25%
1877
19%
689
58%
689
31%
1212
October1st to 15thNight
42%
660
21%
1980
17%
660
50%
660
24%
1292
October16th to endNight
31%
704
17%
2128
10%
704
40%
704
21%
1447
November1st to 15thNight
35%
700
18%
2277
12%
700
44%
700
22%
1467
November16th to endNight
30%
720
16%
2490
10%
720
39%
720
15%
1714
December1st to 15thNight
21%
720
11%
2520
5%
720
28%
720
11%
1840
December16th to endNight
20%
768
11%
2688
3%
768
30%
768
11%
1991

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
16%7%36%5%35%45%7%35%
47976
Night
15%6%35%5%3445%7%38%
47105
Cloud CoverDay
15%7%36%5%35%45%7%35%
47986
Night
15%7%35%5%3445%7%38%
47110
TransparencyDay
47%6%11%20%12%1
47669
Night
45%6%12%21%12%1
46931
SeeingDay
21%11%24%22%13%5%
5650
Night
20%11%27%27%11%
15031

By Month

Percentage Cloud Cover NE (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
15%9%5%8%7%45%445%29%
1432
16th to endDay
12%10%5%9%9%36%5%46%26%
1707
February1st to 15thDay
14%10%5%9%6%35%45%7%26%
1575
16th to endDay
15%9%38%7%35%435%31%
1557
March1st to 15thDay
14%10%46%6%445%6%6%30%
1890
16th to endDay
18%8%46%5%23335%36%
2166
April1st to 15thDay
19%9%35%5%23336%36%
2152
16th to endDay
16%5%25%5%3445%6%41%
2160
May1st to 15thDay
22%5%25%5%34446%34%
2427
16th to endDay
17%6%35%5%35%5%7%7%33%
2618
June1st to 15thDay
15%5%35%6%35%5%5%8%33%
2520
16th to endDay
15%5%25%6%345%6%9%35%
2520
July1st to 15thDay
12%6%26%6%36%5%5%9%35%
2520
16th to endDay
10%425%5%37%6%7%9%36%
2606
August1st to 15thDay
15%5%25%6%36%6%7%8%32%
2340
16th to endDay
15%5%244345%6%7%39%
2292
September1st to 15thDay
16%6%345%34447%40%
2160
16th to endDay
15%6%25%322445%45%
1918
October1st to 15thDay
17%6%245%24448%39%
1650
16th to endDay
20%6%25%5%34446%34%
1742
November1st to 15thDay
14%8%35%42335%6%40%
1581
16th to endDay
21%6%25%43445%5%35%
1467
December1st to 15thDay
20%9%47%5%3445%5%28%
1440
16th to endDay
20%9%47%426%46%6%26%
1536
January1st to 15thNight
16%8%46%6%35%5%5%6%30%
2506
16th to endNight
13%9%45%6%35%5%5%7%33%
2514
February1st to 15thNight
14%10%46%6%35%5%46%32%
2285
16th to endNight
15%7%36%6%35%5%5%6%34%
1915
March1st to 15thNight
18%6%46%43435%5%37%
2046
16th to endNight
17%7%34434445%40%
2057
April1st to 15thNight
19%7%36%5%34446%35%
1796
16th to endNight
16%5%3442235%6%46%
1800
May1st to 15thNight
20%6%244245%5%6%38%
1533
16th to endNight
14%5%24335%45%7%42%
1495
June1st to 15thNight
17%4245%245%5%7%40%
1440
16th to endNight
11%3244245%7%10%42%
1440
July1st to 15thNight
11%5%344345%7%8%41%
1440
16th to endNight
9%4235%245%7%8%45%
1560
August1st to 15thNight
11%414435%5%8%9%41%
1620
16th to endNight
12%424424447%46%
1898
September1st to 15thNight
14%6%245%24347%46%
1800
16th to endNight
13%5%24423446%46%
1877
October1st to 15thNight
19%6%24323335%44%
1980
16th to endNight
19%6%25%424446%38%
2128
November1st to 15thNight
12%7%36%5%2435%6%41%
2277
16th to endNight
17%7%45%5%3445%7%33%
2490
December1st to 15thNight
20%7%47%5%35%45%7%27%
2520
16th to endNight
19%9%36%6%35%45%8%26%
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
14%9%5%9%7%45%45%5%29%
1432
16th to endDay
12%9%5%9%8%45%6%5%5%26%
1707
February1st to 15thDay
14%11%5%8%6%45%45%6%26%
1575
16th to endDay
15%9%48%7%35%336%31%
1557
March1st to 15thDay
14%10%45%6%445%5%6%31%
1901
16th to endDay
18%8%46%5%23345%36%
2165
April1st to 15thDay
19%9%35%5%24346%36%
2152
16th to endDay
15%5%25%5%3436%6%41%
2160
May1st to 15thDay
21%5%25%6%3435%6%34%
2427
16th to endDay
16%5%35%5%345%7%7%34%
2618
June1st to 15thDay
15%5%35%6%35%5%5%8%34%
2520
16th to endDay
15%6%246%345%6%9%36%
2520
July1st to 15thDay
12%5%26%6%36%5%6%8%35%
2520
16th to endDay
10%325%5%46%7%7%9%37%
2606
August1st to 15thDay
14%5%36%6%36%6%7%8%31%
2340
16th to endDay
14%5%245%245%6%7%39%
2292
September1st to 15thDay
15%6%345%3445%6%40%
2160
16th to endDay
14%6%25%423345%45%
1918
October1st to 15thDay
17%5%25%42445%7%39%
1650
16th to endDay
20%6%35%5%44446%34%
1742
November1st to 15thDay
14%8%36%433346%40%
1581
16th to endDay
20%6%25%425%45%5%35%
1467
December1st to 15thDay
19%10%47%5%3445%6%28%
1440
16th to endDay
19%10%47%5%25%45%6%26%
1536
January1st to 15thNight
16%8%46%6%35%45%5%31%
2506
16th to endNight
13%10%36%5%35%5%6%7%33%
2514
February1st to 15thNight
14%10%36%6%36%5%5%6%32%
2278
16th to endNight
15%7%36%6%35%45%6%34%
1915
March1st to 15thNight
17%7%46%433346%37%
2058
16th to endNight
17%7%35%434445%40%
2057
April1st to 15thNight
18%7%36%5%3435%6%35%
1796
16th to endNight
16%424423346%46%
1800
May1st to 15thNight
18%6%15%42445%7%37%
1533
16th to endNight
13%6%24435%5%5%7%42%
1495
June1st to 15thNight
15%5%25%5%25%45%7%39%
1440
16th to endNight
11%324435%5%7%10%42%
1440
July1st to 15thNight
10%425%5%345%6%8%41%
1440
16th to endNight
9%4245%3447%9%44%
1560
August1st to 15thNight
11%414435%5%8%9%41%
1620
16th to endNight
11%424435%447%46%
1898
September1st to 15thNight
14%5%24424346%46%
1800
16th to endNight
13%5%25%424346%46%
1877
October1st to 15thNight
18%6%25%323345%44%
1980
16th to endNight
19%6%25%424446%38%
2128
November1st to 15thNight
12%7%37%43335%6%41%
2277
16th to endNight
16%8%445%3445%7%33%
2490
December1st to 15thNight
20%8%47%5%35%45%7%27%
2520
16th to endNight
19%9%36%6%35%45%7%27%
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
55%5%12%17%7%1
1433
16th to endDay
57%5%11%16%8%
1707
February1st to 15thDay
56%6%10%16%8%
1577
16th to endDay
54%410%22%7%
1557
March1st to 15thDay
52%6%13%18%8%
1901
16th to endDay
50%49%20%13%1
2166
April1st to 15thDay
49%49%21%12%2
2152
16th to endDay
42%410%21%17%3
2160
May1st to 15thDay
50%6%8%20%12%1
2427
16th to endDay
46%9%12%17%12%1
2622
June1st to 15thDay
46%8%12%20%10%
2520
16th to endDay
43%7%13%23%10%
2520
July1st to 15thDay
44%7%11%21%13%1
2371
16th to endDay
38%8%15%21%14%
2443
August1st to 15thDay
47%8%12%19%11%
2327
16th to endDay
41%7%10%22%15%1
2292
September1st to 15thDay
43%5%10%20%18%1
2160
16th to endDay
40%48%22%21%2
1918
October1st to 15thDay
43%6%13%20%13%1
1650
16th to endDay
50%6%11%22%8%
1742
November1st to 15thDay
44%413%20%13%3
1581
16th to endDay
48%6%11%21%10%1
1467
December1st to 15thDay
56%6%13%16%5%
1440
16th to endDay
57%7%12%15%7%
1536
January1st to 15thNight
53%6%13%16%8%1
2506
16th to endNight
48%6%14%20%9%
2514
February1st to 15thNight
52%6%13%18%8%
2287
16th to endNight
49%5%10%20%12%1
1915
March1st to 15thNight
47%5%13%21%10%1
2058
16th to endNight
44%5%12%21%13%1
2057
April1st to 15thNight
49%5%9%18%14%1
1796
16th to endNight
39%411%21%19%2
1800
May1st to 15thNight
44%7%11%20%13%2
1533
16th to endNight
40%9%13%19%14%2
1497
June1st to 15thNight
41%7%12%24%12%
1440
16th to endNight
34%8%14%29%12%1
1440
July1st to 15thNight
39%8%12%24%13%2
1360
16th to endNight
33%8%17%23%14%2
1461
August1st to 15thNight
35%9%15%23%14%1
1609
16th to endNight
37%5%11%23%20%1
1898
September1st to 15thNight
38%5%10%25%17%2
1800
16th to endNight
38%5%7%25%21%2
1877
October1st to 15thNight
43%411%23%15%1
1980
16th to endNight
45%6%13%23%10%
2128
November1st to 15thNight
43%5%15%18%13%4
2277
16th to endNight
49%6%11%19%11%1
2490
December1st to 15thNight
55%7%14%16%6%
2520
16th to endNight
56%6%14%15%5%
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
28%28%30%10%3
60
16th to endDay
24%23%32%18%1
93
February1st to 15thDay
24%36%28%10%
90
16th to endDay
20%22%36%18%2
216
March1st to 15thDay
27%18%27%23%3
270
16th to endDay
24%18%27%18%6%4
288
April1st to 15thDay
28%17%25%17%8%2
270
16th to endDay
21%12%30%15%15%4
270
May1st to 15thDay
37%11%22%13%9%4
288
16th to endDay
22%9%24%22%16%5%
331
June1st to 15thDay
20%9%27%25%15%1
315
16th to endDay
21%11%26%25%13%2
315
July1st to 15thDay
20%6%23%26%18%4
305
16th to endDay
11%424%27%22%8%
326
August1st to 15thDay
18%5%17%27%20%10%
313
16th to endDay
17%117%26%19%16%
332
September1st to 15thDay
15%7%25%18%21%11%
315
16th to endDay
16%6%16%24%19%16%
283
October1st to 15thDay
22%5%15%31%18%5%
255
16th to endDay
21%13%32%23%8%
269
November1st to 15thDay
23%11%23%25%13%1
235
16th to endDay
24%14%31%24%5%
87
December1st to 15thDay
31%30%15%10%11%1
60
16th to endDay
40%15%34%7%1
64
January1st to 15thNight
21%18%34%22%3
720
16th to endNight
18%18%38%22%1
768
February1st to 15thNight
22%19%37%20%1
704
16th to endNight
21%18%37%19%3
631
March1st to 15thNight
24%17%32%21%3
720
16th to endNight
19%17%34%20%7%
768
April1st to 15thNight
23%17%32%21%4
718
16th to endNight
21%11%31%24%10%
720
May1st to 15thNight
24%8%24%28%12%
453
16th to endNight
18%423%37%16%1
375
June1st to 15thNight
17%5%23%34%19%
360
16th to endNight
11%125%49%11%
360
July1st to 15thNight
13%223%39%20%
340
16th to endNight
10%117%40%26%2
422
August1st to 15thNight
13%12%43%27%2
539
16th to endNight
14%214%33%32%2
752
September1st to 15thNight
18%420%32%22%1
720
16th to endNight
16%419%28%26%4
689
October1st to 15thNight
24%6%20%28%17%2
660
16th to endNight
23%12%28%29%6%
704
November1st to 15thNight
16%11%31%29%10%1
700
16th to endNight
22%18%24%26%6%1
720
December1st to 15thNight
25%16%31%21%5%
720
16th to endNight
24%17%33%21%3
768
Page generated at 2017-09-24 09:15:56. Version ac04

Copyright 2017 A. Danko


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