Pastimes Cabins, RV Park & Campground
Clear Sky Chart
History

This sumarizes the distribution of each different forecast outcome for the Pastimes Cabins, RV Park & Campground clear sky chart from 2005-11-06 to 2025-12-03.

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	10% 6% 2 7% 5% 5% 6% 5% 7% 8% 39%	126860
	Night	10% 6% 2 6% 4 4 4 4 6% 8% 43%	123856
Transparency	Day	40% 6% 13% 19% 15% 7%	130584
	Night	38% 5% 14% 19% 16% 8%	128201
Seeing	Day	13% 9% 23% 25% 20% 10%	16823
	Night	12% 7% 22% 32% 22% 4	26857

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
Month	Days in Month		Occurrence of each Forecast	Data Points
January	1st to 10th	Day	9% 6% 2 5% 3 3 3 3 5% 5% 56%	4056
	11th to 20th	Day	17% 7% 2 7% 5% 4 4 3 4 6% 41%	4060
	21st to end	Day	11% 6% 2 6% 3 4 4 4 5% 8% 47%	4508
February	1st to 10th	Day	14% 8% 2 7% 4 4 4 3 5% 6% 44%	2000
	11th to 20th	Day	14% 6% 3 5% 4 3 4 3 5% 5% 48%	1948
	21st to end	Day	12% 7% 2 6% 5% 4 3 2 5% 5% 48%	1690
March	1st to 10th	Day	16% 8% 3 7% 4 4 3 3 5% 7% 39%	4935
	11th to 20th	Day	7% 4 2 5% 3 3 4 4 5% 7% 55%	4980
	21st to end	Day	13% 5% 2 6% 4 4 4 3 5% 7% 48%	5465
April	1st to 10th	Day	8% 5% 2 5% 6% 5% 5% 4 7% 8% 47%	2200
	11th to 20th	Day	10% 6% 2 6% 5% 6% 5% 3 6% 6% 44%	2224
	21st to end	Day	6% 4 2 5% 4 5% 6% 4 6% 8% 51%	2507
May	1st to 10th	Day	8% 5% 2 8% 6% 6% 6% 5% 7% 8% 40%	5862
	11th to 20th	Day	11% 6% 2 6% 5% 4 4 4 6% 8% 43%	5861
	21st to end	Day	4 3 2 5% 5% 5% 6% 5% 8% 12% 44%	6433
June	1st to 10th	Day	10% 6% 2 10% 6% 6% 6% 6% 8% 10% 28%	2600
	11th to 20th	Day	6% 5% 2 8% 7% 8% 9% 6% 9% 10% 30%	2600
	21st to end	Day	8% 6% 3 9% 9% 7% 7% 5% 9% 10% 27%	2600
July	1st to 10th	Day	7% 8% 4 12% 10% 9% 10% 7% 9% 9% 16%	5900
	11th to 20th	Day	4 4 2 8% 8% 8% 9% 7% 10% 14% 27%	5900
	21st to end	Day	4 5% 3 8% 8% 8% 8% 7% 9% 12% 28%	6424
August	1st to 10th	Day	14% 6% 3 9% 7% 7% 8% 6% 8% 10% 21%	4234
	11th to 20th	Day	6% 5% 2 7% 6% 6% 7% 6% 9% 11% 34%	4120
	21st to end	Day	10% 7% 3 9% 7% 7% 8% 6% 8% 10% 25%	3992
September	1st to 10th	Day	11% 8% 3 10% 8% 7% 6% 6% 8% 8% 25%	2200
	11th to 20th	Day	14% 9% 3 8% 7% 6% 7% 5% 8% 8% 26%	2200
	21st to end	Day	13% 7% 3 8% 6% 6% 6% 4 5% 7% 35%	2200
October	1st to 10th	Day	14% 7% 2 7% 5% 6% 4 4 5% 8% 38%	2185
	11th to 20th	Day	6% 5% 2 5% 4 4 4 3 5% 6% 57%	2000
	21st to end	Day	9% 5% 2 6% 4 4 5% 3 6% 6% 50%	2200
November	1st to 10th	Day	11% 5% 2 5% 5% 4 4 3 5% 7% 50%	2057
	11th to 20th	Day	10% 6% 2 5% 4 4 3 3 5% 6% 53%	2042
	21st to end	Day	11% 6% 2 5% 4 4 4 5% 5% 5% 47%	1890
December	1st to 10th	Day	7% 5% 1 6% 4 5% 4 4 5% 6% 54%	2948
	11th to 20th	Day	14% 8% 2 7% 4 4 4 4 5% 6% 41%	3373
	21st to end	Day	15% 9% 3 8% 5% 4 4 3 4 5% 42%	4466
January	1st to 10th	Night	9% 6% 2 5% 2 3 3 3 4 6% 57%	5889
	11th to 20th	Night	15% 8% 3 7% 5% 5% 5% 4 6% 7% 37%	5900
	21st to end	Night	13% 7% 2 6% 3 3 4 3 5% 7% 45%	6444
February	1st to 10th	Night	14% 7% 2 6% 4 4 4 3 5% 6% 46%	2400
	11th to 20th	Night	15% 7% 2 6% 4 3 3 3 4 6% 47%	2338
	21st to end	Night	11% 7% 2 5% 4 3 4 3 5% 7% 49%	1939
March	1st to 10th	Night	19% 9% 3 6% 4 3 3 3 4 6% 41%	4918
	11th to 20th	Night	7% 5% 1 5% 3 3 3 3 7% 10% 53%	4980
	21st to end	Night	10% 6% 2 5% 4 4 4 3 5% 6% 51%	5467
April	1st to 10th	Night	10% 5% 2 4 4 4 5% 3 6% 9% 49%	2200
	11th to 20th	Night	8% 6% 3 6% 4 3 4 3 6% 6% 53%	2124
	21st to end	Night	6% 4 1 5% 3 4 5% 5% 6% 8% 54%	1908
May	1st to 10th	Night	6% 5% 2 7% 5% 5% 5% 4 7% 10% 45%	4033
	11th to 20th	Night	12% 7% 2 6% 4 4 3 4 7% 10% 42%	4032
	21st to end	Night	5% 4 2 5% 4 5% 5% 4 7% 12% 49%	4421
June	1st to 10th	Night	9% 6% 3 6% 6% 6% 6% 6% 8% 11% 33%	1800
	11th to 20th	Night	5% 4 2 6% 7% 5% 7% 7% 9% 13% 35%	1800
	21st to end	Night	6% 4 2 7% 5% 6% 6% 6% 9% 14% 36%	1800
July	1st to 10th	Night	8% 9% 4 11% 8% 7% 8% 6% 9% 10% 20%	4058
	11th to 20th	Night	4 5% 3 8% 6% 7% 7% 7% 10% 14% 31%	4057
	21st to end	Night	5% 6% 3 8% 6% 6% 7% 6% 9% 11% 32%	4427
August	1st to 10th	Night	12% 6% 3 8% 6% 6% 7% 6% 8% 11% 26%	2915
	11th to 20th	Night	4 5% 2 6% 5% 6% 6% 5% 8% 12% 41%	2923
	21st to end	Night	9% 8% 3 7% 5% 5% 5% 4 7% 11% 35%	3873
September	1st to 10th	Night	11% 8% 3 8% 6% 6% 5% 5% 9% 11% 28%	2200
	11th to 20th	Night	12% 7% 3 9% 7% 6% 5% 5% 6% 8% 31%	2200
	21st to end	Night	10% 6% 3 7% 4 5% 5% 4 6% 9% 42%	2200
October	1st to 10th	Night	12% 6% 3 8% 4 4 4 4 6% 7% 43%	2215
	11th to 20th	Night	7% 4 2 5% 3 3 4 3 4 7% 57%	2400
	21st to end	Night	8% 5% 2 6% 4 4 4 3 5% 7% 51%	2640
November	1st to 10th	Night	11% 5% 1 5% 4 3 4 3 5% 7% 50%	2461
	11th to 20th	Night	12% 6% 2 5% 4 2 4 3 4 6% 52%	2575
	21st to end	Night	12% 7% 2 5% 4 4 3 4 5% 7% 47%	2730
December	1st to 10th	Night	11% 6% 2 5% 4 3 3 3 4 6% 54%	4277
	11th to 20th	Night	14% 10% 3 7% 4 3 3 3 4 5% 43%	4822
	21st to end	Night	14% 9% 3 7% 4 4 4 3 4 6% 41%	6490

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	31% 2 5% 15% 32% 14%	4057
	11th to 20th	Day	46% 2 4 13% 19% 16%	4060
	21st to end	Day	37% 2 9% 22% 18% 11%	4508
February	1st to 10th	Day	43% 3 8% 16% 21% 10%	2000
	11th to 20th	Day	38% 4 7% 16% 23% 12%	1958
	21st to end	Day	39% 2 7% 18% 18% 14%	1690
March	1st to 10th	Day	46% 2 8% 16% 18% 10%	4935
	11th to 20th	Day	28% 2 11% 18% 17% 23%	4980
	21st to end	Day	38% 2 7% 22% 18% 13%	5465
April	1st to 10th	Day	34% 5% 9% 20% 19% 12%	2200
	11th to 20th	Day	40% 3 7% 18% 21% 11%	2224
	21st to end	Day	30% 5% 10% 24% 24% 8%	2507
May	1st to 10th	Day	39% 4 12% 27% 14% 4	5897
	11th to 20th	Day	39% 3 12% 31% 13% 2	5865
	21st to end	Day	31% 5% 17% 27% 19% 2	6447
June	1st to 10th	Day	47% 7% 17% 18% 11% 1	2600
	11th to 20th	Day	43% 10% 18% 22% 8%	2600
	21st to end	Day	48% 9% 22% 15% 6% 1	2600
July	1st to 10th	Day	58% 11% 22% 7% 1	5835
	11th to 20th	Day	40% 12% 34% 12% 2	5831
	21st to end	Day	41% 12% 25% 19% 3	6240
August	1st to 10th	Day	53% 9% 24% 12% 1	4221
	11th to 20th	Day	38% 9% 21% 22% 9%	4159
	21st to end	Day	50% 9% 19% 19% 2	3992
September	1st to 10th	Day	54% 8% 16% 13% 8% 2	2200
	11th to 20th	Day	53% 8% 14% 16% 8% 2	2200
	21st to end	Day	47% 6% 11% 18% 15% 4	2200
October	1st to 10th	Day	51% 5% 6% 12% 14% 12%	3562
	11th to 20th	Day	20% 3 4 17% 38% 17%	3240
	21st to end	Day	25% 4 5% 19% 34% 13%	3538
November	1st to 10th	Day	34% 4 9% 19% 21% 13%	2057
	11th to 20th	Day	34% 3 7% 19% 24% 12%	2042
	21st to end	Day	39% 3 8% 19% 22% 9%	1890
December	1st to 10th	Day	31% 4 9% 21% 24% 12%	2948
	11th to 20th	Day	43% 4 9% 18% 19% 7%	3370
	21st to end	Day	48% 3 6% 18% 21% 5%	4466
January	1st to 10th	Night	29% 2 6% 12% 37% 13%	5889
	11th to 20th	Night	47% 2 5% 15% 23% 9%	5900
	21st to end	Night	39% 3 9% 19% 19% 11%	6444
February	1st to 10th	Night	40% 3 8% 17% 21% 11%	2400
	11th to 20th	Night	40% 3 8% 18% 18% 13%	2339
	21st to end	Night	37% 3 9% 19% 18% 13%	1939
March	1st to 10th	Night	47% 2 9% 16% 15% 11%	4918
	11th to 20th	Night	26% 2 11% 20% 20% 20%	4980
	21st to end	Night	35% 2 10% 19% 20% 14%	5467
April	1st to 10th	Night	33% 4 13% 20% 18% 12%	2200
	11th to 20th	Night	32% 4 8% 24% 21% 11%	2124
	21st to end	Night	27% 5% 12% 27% 21% 7%	1908
May	1st to 10th	Night	35% 4 20% 27% 11% 3	4060
	11th to 20th	Night	38% 4 20% 26% 10% 2	4033
	21st to end	Night	29% 5% 19% 29% 18% 1	4429
June	1st to 10th	Night	41% 7% 22% 20% 10%	1800
	11th to 20th	Night	36% 12% 24% 21% 7%	1800
	21st to end	Night	37% 10% 27% 20% 5% 1	1800
July	1st to 10th	Night	53% 12% 25% 8% 1	4015
	11th to 20th	Night	38% 15% 33% 12% 2	4006
	21st to end	Night	39% 13% 26% 21% 2	4297
August	1st to 10th	Night	48% 11% 29% 10% 2	2904
	11th to 20th	Night	32% 9% 28% 22% 9%	2950
	21st to end	Night	41% 10% 24% 23% 2	3873
September	1st to 10th	Night	47% 9% 20% 15% 8% 2	2200
	11th to 20th	Night	50% 8% 15% 19% 8%	2200
	21st to end	Night	39% 5% 18% 21% 14% 4	2200
October	1st to 10th	Night	49% 5% 9% 14% 14% 10%	3618
	11th to 20th	Night	21% 3 5% 19% 35% 18%	3899
	21st to end	Night	25% 5% 7% 19% 31% 14%	4252
November	1st to 10th	Night	33% 4 8% 22% 19% 14%	2461
	11th to 20th	Night	35% 3 8% 18% 24% 12%	2575
	21st to end	Night	37% 4 9% 21% 19% 10%	2730
December	1st to 10th	Night	33% 2 9% 20% 20% 16%	4277
	11th to 20th	Night	44% 4 8% 18% 17% 9%	4824
	21st to end	Night	45% 3 9% 18% 20% 4	6490

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	14% 23% 46% 13% 4 1	300
	11th to 20th	Day	14% 15% 41% 21% 7% 2	300
	21st to end	Day	22% 23% 40% 13% 2	330
February	1st to 10th	Day	23% 11% 37% 23% 5% 1	300
	11th to 20th	Day	24% 20% 38% 13% 4	300
	21st to end	Day	16% 17% 43% 19% 4	289
March	1st to 10th	Day	16% 17% 33% 24% 10%	500
	11th to 20th	Day	17% 14% 35% 21% 9% 4	500
	21st to end	Day	15% 16% 34% 23% 10% 2	550
April	1st to 10th	Day	17% 15% 30% 24% 12% 2	500
	11th to 20th	Day	13% 12% 33% 26% 12% 4	492
	21st to end	Day	7% 11% 28% 29% 17% 8%	500
May	1st to 10th	Day	9% 10% 29% 27% 18% 8%	503
	11th to 20th	Day	9% 5% 27% 28% 22% 10%	527
	21st to end	Day	10% 4 16% 30% 28% 12%	573
June	1st to 10th	Day	14% 4 16% 29% 23% 14%	530
	11th to 20th	Day	7% 4 15% 25% 29% 20%	530
	21st to end	Day	8% 3 9% 28% 30% 22%	530
July	1st to 10th	Day	8% 3 5% 22% 36% 26%	525
	11th to 20th	Day	5% 1 5% 21% 40% 28%	524
	21st to end	Day	8% 2 6% 25% 36% 22%	576
August	1st to 10th	Day	13% 3 9% 20% 30% 24%	526
	11th to 20th	Day	7% 2 4 22% 35% 29%	519
	21st to end	Day	14% 4 9% 25% 27% 21%	583
September	1st to 10th	Day	14% 6% 13% 21% 27% 19%	530
	11th to 20th	Day	17% 3 15% 28% 26% 10%	530
	21st to end	Day	14% 3 14% 27% 28% 14%	530
October	1st to 10th	Day	18% 8% 25% 26% 17% 6%	530
	11th to 20th	Day	8% 7% 26% 33% 20% 5%	530
	21st to end	Day	12% 7% 27% 33% 17% 4	583
November	1st to 10th	Day	15% 7% 29% 29% 17% 4	535
	11th to 20th	Day	15% 12% 35% 22% 13% 2	482
	21st to end	Day	15% 17% 38% 23% 7% 1	330
December	1st to 10th	Day	15% 18% 34% 20% 12% 1	306
	11th to 20th	Day	21% 15% 35% 22% 6% 1	300
	21st to end	Day	21% 10% 37% 25% 6%	330
January	1st to 10th	Night	16% 14% 34% 29% 6%	800
	11th to 20th	Night	15% 12% 28% 36% 9% 1	800
	21st to end	Night	17% 15% 38% 26% 4	880
February	1st to 10th	Night	18% 13% 28% 33% 9%	800
	11th to 20th	Night	17% 14% 31% 31% 6%	783
	21st to end	Night	16% 13% 33% 34% 4	660
March	1st to 10th	Night	14% 12% 33% 35% 7%	800
	11th to 20th	Night	12% 12% 36% 29% 10% 1	800
	21st to end	Night	13% 12% 31% 35% 8%	880
April	1st to 10th	Night	12% 11% 35% 32% 10%	800
	11th to 20th	Night	10% 10% 34% 33% 12% 1	791
	21st to end	Night	7% 7% 30% 42% 14%	708
May	1st to 10th	Night	7% 4 25% 46% 18% 2	600
	11th to 20th	Night	8% 5% 19% 41% 24% 3	591
	21st to end	Night	7% 4 11% 39% 34% 4	650
June	1st to 10th	Night	10% 3 13% 40% 32% 4	600
	11th to 20th	Night	6% 2 11% 32% 36% 13%	600
	21st to end	Night	7% 3 9% 31% 41% 11%	600
July	1st to 10th	Night	8% 2 5% 26% 44% 15%	585
	11th to 20th	Night	7% 2 2 23% 51% 16%	582
	21st to end	Night	5% 1 3 29% 52% 11%	657
August	1st to 10th	Night	9% 2 3 25% 50% 10%	597
	11th to 20th	Night	6% 1 4 22% 54% 14%	594
	21st to end	Night	15% 4 8% 26% 36% 12%	830
September	1st to 10th	Night	14% 4 9% 27% 37% 10%	800
	11th to 20th	Night	13% 4 10% 32% 35% 5%	800
	21st to end	Night	14% 3 11% 33% 34% 6%	800
October	1st to 10th	Night	17% 3 20% 32% 25% 3	800
	11th to 20th	Night	9% 5% 23% 36% 25% 2	800
	21st to end	Night	11% 6% 22% 37% 23% 2	880
November	1st to 10th	Night	12% 7% 26% 35% 18% 1	820
	11th to 20th	Night	14% 8% 27% 34% 16% 1	840
	21st to end	Night	14% 8% 29% 33% 15% 1	840
December	1st to 10th	Night	15% 9% 29% 33% 14% 1	809
	11th to 20th	Night	16% 8% 28% 34% 13% 1	800
	21st to end	Night	19% 12% 28% 30% 12%	880

Page generated at 2025-11-30 01:00:55. Version ac07

Copyright © 2025 Attilla Danko.