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 2005-11-06 to 2024-11-28.

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 Type	Minimum conditions for hour to be usable				Out of hours
	Clear of Clouds	Transparency	Seeing	Sky Brightness
Planetary:	50%	(no limit)	Average	(no limit)	Nighttime Hours
Deep Sky:	70%	Average	(no limit)	5.9	Nighttime Hours
CCD Imaging:	70%	Below Average	Poor	(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

By Month

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 Forecast	Data Points
Cloud Cover	Day	17% 8% 3 7% 5% 4 4 4 5% 7% 35%	101617
	Night	18% 8% 3 7% 4 4 4 4 5% 6% 36%	97908
Transparency	Day	47% 6% 12% 22% 12% 1	105192
	Night	46% 6% 12% 21% 13% 2	102422
Seeing	Day	24% 15% 27% 20% 11% 3	14882
	Night	21% 12% 28% 27% 11% 1	24197

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
Month	Days in Month		Occurrence of each Forecast	Data Points
January	1st to 10th	Day	15% 15% 4 7% 5% 4 4 3 4 4 34%	2517
	11th to 20th	Day	14% 16% 8% 13% 6% 5% 5% 3 3 5% 22%	2621
	21st to end	Day	21% 16% 4 10% 5% 4 4 3 4 5% 23%	3124
February	1st to 10th	Day	17% 11% 4 9% 6% 5% 5% 3 5% 6% 28%	1710
	11th to 20th	Day	14% 11% 4 8% 5% 5% 5% 4 5% 7% 32%	1720
	21st to end	Day	20% 10% 3 8% 6% 5% 4 4 4 4 31%	1570
March	1st to 10th	Day	25% 9% 3 7% 4 4 4 4 4 5% 31%	3233
	11th to 20th	Day	11% 9% 3 7% 5% 5% 5% 3 5% 6% 40%	3480
	21st to end	Day	19% 11% 2 6% 4 3 3 3 3 5% 40%	3964
April	1st to 10th	Day	18% 11% 3 7% 6% 4 4 3 5% 7% 33%	2280
	11th to 20th	Day	18% 10% 2 6% 5% 4 4 4 4 7% 37%	2254
	21st to end	Day	17% 6% 2 6% 4 6% 3 4 6% 7% 38%	2280
May	1st to 10th	Day	30% 6% 2 6% 4 4 4 3 4 7% 31%	4216
	11th to 20th	Day	24% 9% 3 7% 5% 4 5% 4 5% 7% 26%	4398
	21st to end	Day	15% 4 2 4 4 4 4 4 7% 9% 42%	4837
June	1st to 10th	Day	14% 7% 2 6% 6% 5% 5% 5% 6% 8% 36%	2660
	11th to 20th	Day	16% 6% 3 6% 5% 5% 5% 5% 6% 8% 36%	2660
	21st to end	Day	14% 5% 2 6% 5% 5% 5% 4 7% 9% 39%	2660
July	1st to 10th	Day	9% 6% 3 8% 6% 5% 6% 5% 7% 9% 37%	4440
	11th to 20th	Day	9% 6% 2 7% 4 4 5% 5% 7% 11% 39%	4440
	21st to end	Day	12% 7% 3 8% 6% 6% 6% 5% 6% 7% 33%	4675
August	1st to 10th	Day	22% 6% 3 7% 5% 5% 5% 4 6% 7% 30%	4104
	11th to 20th	Day	17% 6% 2 7% 4 5% 6% 5% 7% 9% 34%	3871
	21st to end	Day	18% 5% 1 4 4 3 4 3 6% 8% 42%	4180
September	1st to 10th	Day	17% 6% 3 5% 4 4 4 3 5% 7% 43%	2280
	11th to 20th	Day	13% 6% 2 6% 4 4 4 4 4 6% 49%	2280
	21st to end	Day	21% 8% 3 6% 4 3 4 4 6% 5% 37%	2024
October	1st to 10th	Day	20% 6% 2 4 5% 3 4 3 5% 8% 39%	1900
	11th to 20th	Day	18% 7% 3 6% 4 4 5% 3 5% 6% 39%	1900
	21st to end	Day	21% 7% 2 7% 4 4 4 4 5% 6% 36%	2059
November	1st to 10th	Day	14% 8% 3 4 4 3 3 3 5% 5% 46%	1761
	11th to 20th	Day	16% 10% 3 7% 5% 4 4 4 5% 6% 36%	1745
	21st to end	Day	19% 8% 3 6% 5% 4 4 4 6% 6% 34%	1576
December	1st to 10th	Day	22% 12% 3 7% 6% 5% 5% 4 4 5% 27%	1520
	11th to 20th	Day	23% 11% 3 6% 3 3 4 3 5% 6% 32%	1906
	21st to end	Day	22% 12% 5% 11% 6% 6% 5% 3 5% 4 20%	2772
January	1st to 10th	Night	15% 10% 3 9% 5% 5% 5% 3 5% 6% 33%	4429
	11th to 20th	Night	17% 11% 6% 12% 5% 5% 4 4 5% 5% 27%	4335
	21st to end	Night	22% 12% 4 10% 5% 4 4 4 4 5% 26%	4532
February	1st to 10th	Night	16% 11% 3 7% 5% 5% 5% 4 5% 6% 33%	2470
	11th to 20th	Night	15% 11% 3 8% 6% 5% 5% 4 5% 6% 33%	2344
	21st to end	Night	19% 10% 2 9% 5% 5% 4 4 5% 6% 32%	1884
March	1st to 10th	Night	25% 13% 3 5% 4 3 3 3 4 4 32%	3606
	11th to 20th	Night	11% 11% 4 7% 4 4 4 4 6% 6% 40%	3479
	21st to end	Night	16% 9% 2 7% 5% 4 4 2 4 4 43%	3666
April	1st to 10th	Night	19% 9% 3 7% 6% 4 5% 4 5% 5% 33%	1900
	11th to 20th	Night	17% 7% 2 6% 5% 3 4 3 5% 7% 39%	1875
	21st to end	Night	19% 6% 3 6% 4 3 4 3 5% 6% 42%	1900
May	1st to 10th	Night	31% 7% 2 5% 3 3 3 3 5% 6% 31%	2752
	11th to 20th	Night	25% 8% 3 5% 4 4 4 4 6% 6% 31%	2495
	21st to end	Night	16% 6% 2 7% 4 5% 4 3 5% 8% 40%	2738
June	1st to 10th	Night	14% 5% 2 6% 5% 4 4 4 5% 8% 43%	1520
	11th to 20th	Night	14% 4 2 6% 5% 5% 4 4 8% 10% 39%	1520
	21st to end	Night	13% 5% 2 5% 4 4 5% 4 7% 8% 43%	1520
July	1st to 10th	Night	10% 7% 3 7% 5% 5% 5% 4 7% 7% 41%	2520
	11th to 20th	Night	11% 5% 2 6% 5% 4 5% 5% 8% 11% 39%	2520
	21st to end	Night	17% 5% 3 6% 4 4 4 4 6% 7% 40%	2861
August	1st to 10th	Night	21% 7% 2 7% 3 4 5% 4 6% 9% 32%	2825
	11th to 20th	Night	19% 7% 3 6% 3 4 4 3 5% 6% 42%	2912
	21st to end	Night	16% 4 2 4 3 4 4 3 5% 7% 47%	3476
September	1st to 10th	Night	16% 6% 1 5% 4 4 4 3 5% 7% 44%	1900
	11th to 20th	Night	14% 6% 2 4 3 2 4 3 4 7% 51%	1900
	21st to end	Night	20% 6% 2 5% 4 4 3 3 4 6% 42%	2152
October	1st to 10th	Night	22% 6% 2 5% 3 3 3 3 4 6% 43%	2280
	11th to 20th	Night	17% 8% 2 6% 4 3 5% 3 4 6% 44%	2280
	21st to end	Night	21% 7% 2 6% 4 4 4 3 5% 7% 37%	2537
November	1st to 10th	Night	11% 7% 2 7% 4 4 3 3 6% 7% 47%	2537
	11th to 20th	Night	18% 8% 3 6% 4 4 4 4 5% 6% 37%	2652
	21st to end	Night	15% 10% 3 7% 5% 4 5% 4 6% 7% 35%	2759
December	1st to 10th	Night	20% 10% 4 8% 5% 4 5% 4 6% 7% 27%	2660
	11th to 20th	Night	20% 10% 3 8% 5% 5% 5% 4 5% 5% 30%	3288
	21st to end	Night	22% 12% 3 8% 5% 5% 4 4 5% 6% 26%	4884

Transparency (when cloud cover <= 30%)
Color Meanings: Too cloudy to forecast Poor Below Average Average Above average Transparent
Month	Days in Month		Occurrence of each Forecast	Data Points
January	1st to 10th	Day	52% 5% 16% 19% 7% 2	2518
	11th to 20th	Day	65% 5% 10% 14% 6% 1	2621
	21st to end	Day	62% 7% 10% 15% 6% 1	3124
February	1st to 10th	Day	56% 6% 11% 16% 10% 1	1710
	11th to 20th	Day	52% 6% 9% 23% 9% 1	1729
	21st to end	Day	55% 4 9% 22% 8% 2	1570
March	1st to 10th	Day	55% 6% 10% 22% 6% 1	3236
	11th to 20th	Day	43% 6% 15% 24% 10% 2	3480
	21st to end	Day	48% 5% 10% 18% 18% 2	3964
April	1st to 10th	Day	51% 5% 8% 20% 12% 3	2280
	11th to 20th	Day	47% 5% 11% 21% 14% 3	2254
	21st to end	Day	44% 5% 11% 21% 14% 3	2280
May	1st to 10th	Day	52% 6% 10% 21% 10% 1	4228
	11th to 20th	Day	55% 8% 11% 17% 7% 1	4402
	21st to end	Day	35% 8% 13% 25% 16% 2	4837
June	1st to 10th	Day	45% 8% 13% 20% 13% 2	2660
	11th to 20th	Day	43% 9% 13% 22% 12% 1	2660
	21st to end	Day	39% 8% 13% 27% 13%	2660
July	1st to 10th	Day	41% 9% 14% 24% 11% 1	4370
	11th to 20th	Day	37% 7% 18% 24% 14% 1	4365
	21st to end	Day	48% 6% 12% 17% 15% 1	4526
August	1st to 10th	Day	52% 7% 13% 19% 10%	4091
	11th to 20th	Day	45% 7% 14% 26% 8%	3910
	21st to end	Day	38% 6% 12% 32% 11% 1	4180
September	1st to 10th	Day	41% 6% 11% 23% 16% 2	2280
	11th to 20th	Day	36% 5% 10% 25% 22% 2	2280
	21st to end	Day	48% 5% 10% 18% 17% 1	2024
October	1st to 10th	Day	41% 5% 9% 22% 18% 4	3160
	11th to 20th	Day	39% 4 8% 28% 19% 3	3140
	21st to end	Day	33% 4 16% 29% 17% 1	3373
November	1st to 10th	Day	39% 5% 14% 23% 17% 2	1761
	11th to 20th	Day	47% 5% 12% 21% 13% 2	1745
	21st to end	Day	49% 6% 13% 23% 8% 1	1576
December	1st to 10th	Day	59% 6% 12% 15% 7% 1	1520
	11th to 20th	Day	53% 5% 18% 18% 5%	1906
	21st to end	Day	65% 7% 11% 13% 4	2772
January	1st to 10th	Night	50% 8% 14% 20% 7% 1	4429
	11th to 20th	Night	56% 6% 14% 16% 7% 1	4335
	21st to end	Night	60% 6% 10% 17% 7% 1	4532
February	1st to 10th	Night	50% 6% 13% 22% 8% 1	2470
	11th to 20th	Night	52% 6% 12% 18% 11% 2	2346
	21st to end	Night	52% 6% 10% 19% 12% 2	1884
March	1st to 10th	Night	55% 5% 9% 21% 8% 2	3616
	11th to 20th	Night	42% 7% 16% 24% 10% 1	3480
	21st to end	Night	45% 4 9% 18% 19% 4	3666
April	1st to 10th	Night	52% 5% 10% 18% 13% 2	1900
	11th to 20th	Night	43% 7% 11% 20% 17% 1	1875
	21st to end	Night	44% 5% 12% 20% 17% 3	1900
May	1st to 10th	Night	54% 6% 8% 21% 8% 2	2759
	11th to 20th	Night	51% 11% 12% 15% 9% 1	2496
	21st to end	Night	39% 9% 14% 20% 14% 3	2739
June	1st to 10th	Night	38% 7% 12% 25% 17% 1	1520
	11th to 20th	Night	39% 8% 15% 25% 12% 2	1520
	21st to end	Night	36% 8% 13% 29% 13% 1	1520
July	1st to 10th	Night	40% 8% 14% 20% 17% 2	2480
	11th to 20th	Night	37% 9% 15% 24% 14% 1	2472
	21st to end	Night	41% 7% 15% 17% 19% 1	2770
August	1st to 10th	Night	48% 7% 15% 21% 8% 1	2814
	11th to 20th	Night	43% 6% 12% 25% 13%	2939
	21st to end	Night	36% 5% 10% 33% 14% 1	3476
September	1st to 10th	Night	40% 6% 11% 25% 16% 3	1900
	11th to 20th	Night	33% 6% 11% 27% 21% 2	1900
	21st to end	Night	43% 5% 9% 22% 19% 1	2152
October	1st to 10th	Night	44% 4 10% 21% 21% 1	3800
	11th to 20th	Night	33% 5% 11% 27% 21% 4	3779
	21st to end	Night	33% 4 15% 28% 18% 1	4173
November	1st to 10th	Night	37% 5% 14% 23% 18% 2	2537
	11th to 20th	Night	47% 5% 12% 20% 13% 3	2652
	21st to end	Night	47% 7% 14% 22% 10% 1	2759
December	1st to 10th	Night	54% 7% 14% 17% 7%	2660
	11th to 20th	Night	54% 5% 13% 17% 9% 1	3288
	21st to end	Night	58% 7% 14% 17% 4	4884

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
Month	Days in Month		Occurrence of each Forecast	Data Points
January	1st to 10th	Day	32% 19% 33% 13% 2 1	180
	11th to 20th	Day	36% 24% 29% 10% 1	210
	21st to end	Day	25% 29% 30% 11% 5%	297
February	1st to 10th	Day	31% 26% 30% 10% 3	270
	11th to 20th	Day	32% 24% 35% 8%	327
	21st to end	Day	31% 24% 28% 15% 2	382
March	1st to 10th	Day	32% 21% 27% 17% 3	460
	11th to 20th	Day	27% 26% 28% 15% 3 1	460
	21st to end	Day	30% 24% 25% 14% 4 2	506
April	1st to 10th	Day	31% 21% 28% 13% 6% 1	460
	11th to 20th	Day	30% 23% 24% 13% 8% 2	452
	21st to end	Day	26% 19% 33% 13% 7% 2	460
May	1st to 10th	Day	34% 14% 29% 13% 7% 3	463
	11th to 20th	Day	24% 15% 31% 18% 9% 3	487
	21st to end	Day	21% 10% 27% 21% 16% 5%	529
June	1st to 10th	Day	18% 13% 31% 23% 12% 3	490
	11th to 20th	Day	20% 13% 25% 24% 16% 2	490
	21st to end	Day	16% 10% 32% 27% 13% 1	490
July	1st to 10th	Day	14% 7% 26% 30% 18% 5%	485
	11th to 20th	Day	11% 5% 29% 30% 19% 5%	484
	21st to end	Day	14% 9% 29% 27% 17% 5%	532
August	1st to 10th	Day	17% 8% 21% 27% 20% 7%	486
	11th to 20th	Day	17% 4 25% 29% 16% 9%	479
	21st to end	Day	16% 8% 24% 27% 15% 10%	539
September	1st to 10th	Day	19% 10% 23% 20% 19% 10%	490
	11th to 20th	Day	14% 5% 25% 24% 21% 11%	490
	21st to end	Day	26% 11% 21% 24% 12% 5%	490
October	1st to 10th	Day	24% 11% 21% 23% 16% 5%	490
	11th to 20th	Day	23% 15% 28% 21% 10% 2	490
	21st to end	Day	26% 14% 30% 20% 8% 2	522
November	1st to 10th	Day	23% 15% 29% 22% 10% 1	395
	11th to 20th	Day	26% 20% 30% 19% 6% 1	345
	21st to end	Day	28% 22% 34% 13% 3	194
December	1st to 10th	Day	32% 27% 26% 8% 6% 1	180
	11th to 20th	Day	36% 20% 28% 13% 3	180
	21st to end	Day	32% 22% 28% 16% 3	198
January	1st to 10th	Night	21% 21% 37% 19% 3	760
	11th to 20th	Night	23% 18% 33% 23% 3	760
	21st to end	Night	19% 20% 38% 21% 2	836
February	1st to 10th	Night	22% 20% 34% 22% 2	760
	11th to 20th	Night	24% 20% 40% 15% 1	743
	21st to end	Night	26% 19% 35% 17% 4	628
March	1st to 10th	Night	24% 18% 34% 20% 3	760
	11th to 20th	Night	25% 18% 31% 20% 5%	760
	21st to end	Night	22% 17% 35% 19% 6%	836
April	1st to 10th	Night	24% 19% 33% 20% 4	760
	11th to 20th	Night	21% 16% 34% 21% 8%	751
	21st to end	Night	22% 13% 31% 27% 7%	760
May	1st to 10th	Night	27% 12% 24% 26% 11%	528
	11th to 20th	Night	20% 8% 30% 34% 7% 1	374
	21st to end	Night	18% 6% 22% 37% 17% 1	411
June	1st to 10th	Night	15% 4 25% 37% 18%	380
	11th to 20th	Night	14% 5% 26% 38% 16%	380
	21st to end	Night	13% 2 25% 47% 12% 1	380
July	1st to 10th	Night	13% 4 20% 40% 22% 2	370
	11th to 20th	Night	9% 4 21% 42% 23% 1	368
	21st to end	Night	13% 3 20% 39% 23% 2	489
August	1st to 10th	Night	16% 1 14% 42% 25% 2	567
	11th to 20th	Night	15% 3 13% 38% 29% 2	639
	21st to end	Night	15% 4 17% 34% 28% 2	836
September	1st to 10th	Night	19% 4 21% 34% 21% 2	760
	11th to 20th	Night	16% 4 19% 30% 26% 4	760
	21st to end	Night	23% 7% 20% 33% 17% 2	760
October	1st to 10th	Night	26% 8% 19% 26% 18% 2	760
	11th to 20th	Night	21% 10% 27% 31% 10% 1	760
	21st to end	Night	24% 12% 28% 29% 7%	836
November	1st to 10th	Night	15% 12% 32% 30% 10% 1	780
	11th to 20th	Night	23% 17% 27% 27% 6% 1	800
	21st to end	Night	22% 16% 31% 25% 5% 1	789
December	1st to 10th	Night	27% 17% 32% 18% 5%	760
	11th to 20th	Night	23% 17% 31% 24% 4	760
	21st to end	Night	25% 15% 34% 22% 3	836

Page generated at 2024-11-25 00:22:16. Version ac07

Copyright © 2024 Attilla Danko.