Likely Place Golf & RV Resort
Clear Sky Chart
History

This sumarizes the distribution of each different forecast outcome for the Likely Place Golf & RV Resort clear sky chart from 2005-11-06 to 2025-09-19.

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	4 7% 2 5% 3 3 3 3 4 6% 58%	135195
	Night	4 8% 3 6% 4 3 4 3 4 6% 55%	131239
Transparency	Day	29% 4 7% 19% 24% 17%	130108
	Night	33% 5% 8% 19% 22% 13%	127311
Seeing	Day	10% 14% 25% 28% 18% 5%	15998
	Night	10% 10% 19% 36% 22% 4	25169

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
Month	Days in Month		Occurrence of each Forecast	Data Points
January	1st to 10th	Day	7% 17% 5% 11% 5% 5% 5% 5% 5% 6% 29%	3639
	11th to 20th	Day	8% 13% 3 7% 3 3 3 2 3 4 49%	3640
	21st to end	Day	7% 11% 4 8% 4 4 3 2 4 5% 47%	4487
February	1st to 10th	Day	6% 10% 4 8% 4 4 5% 4 6% 7% 42%	1800
	11th to 20th	Day	4 10% 4 7% 6% 4 6% 4 7% 6% 42%	1867
	21st to end	Day	3 11% 4 9% 4 5% 5% 4 6% 8% 41%	1650
March	1st to 10th	Day	6% 18% 5% 11% 5% 5% 4 3 5% 7% 30%	4518
	11th to 20th	Day	4 10% 3 7% 4 4 4 3 5% 7% 48%	4990
	21st to end	Day	4 13% 6% 10% 6% 6% 5% 4 5% 6% 36%	5788
April	1st to 10th	Day	6% 12% 5% 9% 6% 5% 4 3 4 6% 38%	2400
	11th to 20th	Day	6% 12% 3 6% 4 4 4 3 5% 7% 47%	2369
	21st to end	Day	6% 11% 4 6% 4 4 3 3 5% 6% 49%	2400
May	1st to 10th	Day	4 8% 3 4 2 2 2 2 4 6% 62%	5992
	11th to 20th	Day	4 7% 2 4 3 3 3 3 4 6% 61%	6277
	21st to end	Day	4 5% 1 3 2 3 3 3 4 6% 66%	6902
June	1st to 10th	Day	6% 6% 2 6% 4 4 4 4 7% 8% 50%	2800
	11th to 20th	Day	4 4 2 3 2 3 3 2 4 6% 67%	2800
	21st to end	Day	3 2 1 3 2 3 2 2 4 4 75%	2800
July	1st to 10th	Day	1 1 1 2 2 2 2 3 4 83%	6319
	11th to 20th	Day	1 1 2 2 2 2 1 3 4 82%	6320
	21st to end	Day	2 2 1 4 3 4 4 4 4 5% 68%	6847
August	1st to 10th	Day	1 1 1 2 2 3 3 3 5% 6% 74%	5777
	11th to 20th	Day	1 1 2 1 1 2 2 3 4 83%	5499
	21st to end	Day	3 2 1 2 2 2 2 2 3 5% 76%	5984
September	1st to 10th	Day	2 1 1 2 2 2 2 2 4 5% 78%	2400
	11th to 20th	Day	3 3 1 4 3 2 3 3 4 6% 68%	2376
	21st to end	Day	4 3 1 2 2 2 2 2 4 5% 72%	2066
October	1st to 10th	Day	4 2 1 3 2 2 3 2 3 5% 72%	3180
	11th to 20th	Day	6% 5% 2 4 3 3 3 3 5% 6% 62%	3161
	21st to end	Day	5% 6% 2 5% 4 4 4 4 6% 8% 53%	3334
November	1st to 10th	Day	8% 10% 2 6% 4 4 3 4 5% 7% 46%	1764
	11th to 20th	Day	9% 10% 3 6% 4 4 4 4 7% 9% 40%	1797
	21st to end	Day	4 10% 4 7% 5% 5% 4 3 5% 8% 46%	1600
December	1st to 10th	Day	3 6% 2 6% 3 3 4 4 6% 7% 57%	2620
	11th to 20th	Day	7% 14% 4 9% 7% 6% 6% 5% 7% 7% 28%	3028
	21st to end	Day	10% 10% 4 8% 6% 5% 5% 5% 6% 11% 30%	4004
January	1st to 10th	Night	5% 14% 7% 13% 6% 6% 5% 4 6% 7% 27%	6306
	11th to 20th	Night	8% 13% 5% 8% 3 3 3 2 3 4 47%	6320
	21st to end	Night	6% 12% 3 7% 4 4 4 3 4 5% 48%	6485
February	1st to 10th	Night	5% 10% 3 7% 5% 5% 4 5% 6% 8% 41%	2600
	11th to 20th	Night	5% 10% 3 8% 6% 6% 5% 4 5% 7% 42%	2420
	21st to end	Night	3 12% 3 9% 5% 5% 5% 4 5% 8% 42%	1980
March	1st to 10th	Night	5% 19% 5% 10% 5% 4 4 3 4 7% 35%	5376
	11th to 20th	Night	4 11% 4 9% 4 3 4 3 5% 7% 45%	5006
	21st to end	Night	4 17% 5% 9% 5% 6% 5% 4 5% 7% 34%	5187
April	1st to 10th	Night	5% 10% 3 7% 5% 5% 5% 4 7% 8% 40%	2000
	11th to 20th	Night	6% 11% 4 7% 4 3 3 3 5% 7% 48%	1979
	21st to end	Night	7% 12% 3 5% 3 3 3 3 5% 6% 51%	2000
May	1st to 10th	Night	4 9% 3 3 2 2 2 3 3 3 65%	3978
	11th to 20th	Night	6% 8% 1 4 3 3 3 3 4 5% 61%	3616
	21st to end	Night	5% 4 1 3 3 2 2 3 4 6% 66%	3972
June	1st to 10th	Night	8% 6% 2 5% 4 4 4 3 5% 6% 54%	1600
	11th to 20th	Night	5% 4 1 3 3 2 2 2 5% 6% 67%	1600
	21st to end	Night	1 3 1 2 2 3 3 3 4 5% 73%	1600
July	1st to 10th	Night	1 1 1 2 2 2 4 85%	3640
	11th to 20th	Night	1 1 1 2 1 1 2 2 2 4 83%	3640
	21st to end	Night	1 1 1 2 2 3 2 3 5% 6% 74%	4001
August	1st to 10th	Night	2 2 1 2 2 2 2 2 4 7% 75%	4035
	11th to 20th	Night	1 1 1 2 1 1 2 1 2 3 86%	4363
	21st to end	Night	2 2 1 2 2 2 3 3 4 4 75%	5015
September	1st to 10th	Night	2 1 1 2 2 1 2 2 3 4 81%	2000
	11th to 20th	Night	3 3 1 3 2 2 3 2 4 5% 72%	1980
	21st to end	Night	4 4 1 2 2 2 2 2 4 6% 71%	2112
October	1st to 10th	Night	3 3 1 3 2 2 2 1 3 3 76%	3800
	11th to 20th	Night	4 3 1 4 3 2 3 2 3 6% 69%	3777
	21st to end	Night	5% 7% 2 4 3 3 4 4 5% 8% 55%	4228
November	1st to 10th	Night	8% 10% 2 7% 4 4 4 4 6% 7% 45%	2535
	11th to 20th	Night	9% 9% 3 6% 4 4 5% 4 6% 9% 41%	2600
	21st to end	Night	4 9% 4 7% 5% 5% 5% 4 5% 7% 46%	2800
December	1st to 10th	Night	4 6% 2 5% 3 2 3 3 5% 7% 60%	4560
	11th to 20th	Night	5% 12% 4 9% 6% 6% 7% 5% 8% 10% 28%	5176
	21st to end	Night	8% 14% 5% 11% 6% 5% 5% 5% 5% 8% 28%	6952

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	58% 7% 8% 16% 11% 1	3639
	11th to 20th	Day	43% 3 6% 22% 20% 6%	3640
	21st to end	Day	43% 3 7% 12% 23% 12%	4487
February	1st to 10th	Day	43% 5% 13% 21% 13% 5%	1800
	11th to 20th	Day	43% 5% 13% 20% 15% 3	1876
	21st to end	Day	44% 5% 13% 19% 13% 5%	1650
March	1st to 10th	Day	55% 5% 7% 15% 14% 5%	4518
	11th to 20th	Day	37% 7% 9% 27% 18% 1	4990
	21st to end	Day	49% 7% 13% 18% 10% 2	5788
April	1st to 10th	Day	48% 5% 11% 20% 13% 3	2400
	11th to 20th	Day	39% 5% 10% 24% 17% 5%	2372
	21st to end	Day	39% 3 13% 25% 17% 3	2400
May	1st to 10th	Day	25% 3 8% 23% 37% 4	5992
	11th to 20th	Day	25% 5% 7% 21% 33% 9%	6280
	21st to end	Day	21% 3 7% 31% 35% 3	6904
June	1st to 10th	Day	33% 5% 10% 24% 25% 4	2800
	11th to 20th	Day	21% 3 8% 21% 34% 12%	2800
	21st to end	Day	15% 3 4 19% 36% 24%	2800
July	1st to 10th	Day	8% 3 3 11% 20% 56%	6251
	11th to 20th	Day	9% 2 2 7% 18% 62%	6245
	21st to end	Day	17% 5% 4 17% 25% 31%	6648
August	1st to 10th	Day	15% 3 3 9% 23% 47%	4206
	11th to 20th	Day	8% 2 3 10% 39% 39%	3981
	21st to end	Day	10% 3 2 15% 39% 32%	4311
September	1st to 10th	Day	12% 2 2 12% 32% 40%	2400
	11th to 20th	Day	20% 3 5% 20% 29% 23%	2376
	21st to end	Day	17% 2 5% 21% 31% 23%	2066
October	1st to 10th	Day	17% 2 5% 17% 29% 30%	3180
	11th to 20th	Day	25% 4 6% 28% 30% 8%	3161
	21st to end	Day	29% 7% 9% 25% 20% 9%	3334
November	1st to 10th	Day	41% 4 9% 18% 20% 7%	1764
	11th to 20th	Day	41% 6% 13% 21% 15% 4	1797
	21st to end	Day	40% 5% 10% 18% 20% 7%	1600
December	1st to 10th	Day	27% 5% 8% 24% 25% 11%	2620
	11th to 20th	Day	56% 6% 12% 14% 10% 1	3028
	21st to end	Day	49% 9% 14% 18% 9% 2	4004
January	1st to 10th	Night	58% 5% 9% 17% 10% 1	6306
	11th to 20th	Night	44% 3 6% 17% 21% 8%	6320
	21st to end	Night	43% 3 6% 14% 22% 13%	6485
February	1st to 10th	Night	43% 5% 11% 20% 17% 4	2600
	11th to 20th	Night	44% 6% 12% 19% 15% 4	2422
	21st to end	Night	44% 5% 13% 19% 14% 6%	1980
March	1st to 10th	Night	52% 4 8% 16% 14% 5%	5376
	11th to 20th	Night	41% 8% 8% 23% 18% 2	5006
	21st to end	Night	49% 8% 14% 19% 8% 1	5187
April	1st to 10th	Night	45% 6% 12% 23% 12% 3	2000
	11th to 20th	Night	39% 5% 14% 22% 15% 6%	1979
	21st to end	Night	35% 4 17% 26% 15% 2	2000
May	1st to 10th	Night	26% 4 8% 24% 30% 9%	3975
	11th to 20th	Night	27% 5% 7% 23% 31% 7%	3616
	21st to end	Night	21% 3 11% 32% 32% 2	3972
June	1st to 10th	Night	32% 4 14% 28% 19% 3	1600
	11th to 20th	Night	20% 3 9% 25% 34% 8%	1600
	21st to end	Night	16% 3 6% 21% 34% 20%	1600
July	1st to 10th	Night	6% 2 3 13% 24% 52%	3600
	11th to 20th	Night	8% 2 2 9% 23% 55%	3592
	21st to end	Night	12% 4 7% 20% 28% 30%	3888
August	1st to 10th	Night	15% 2 4 11% 26% 42%	2929
	11th to 20th	Night	8% 2 2 13% 42% 34%	3150
	21st to end	Night	9% 2 2 19% 37% 29%	3608
September	1st to 10th	Night	11% 3 3 11% 30% 43%	2000
	11th to 20th	Night	17% 3 6% 20% 31% 23%	1980
	21st to end	Night	17% 2 5% 23% 30% 23%	2112
October	1st to 10th	Night	17% 2 5% 13% 34% 30%	3800
	11th to 20th	Night	19% 4 7% 28% 32% 10%	3777
	21st to end	Night	28% 7% 9% 23% 23% 10%	4228
November	1st to 10th	Night	41% 5% 11% 18% 19% 7%	2535
	11th to 20th	Night	43% 6% 12% 18% 17% 5%	2600
	21st to end	Night	40% 5% 11% 17% 18% 9%	2800
December	1st to 10th	Night	26% 5% 9% 18% 28% 14%	4560
	11th to 20th	Night	54% 8% 8% 16% 13% 2	5176
	21st to end	Night	54% 7% 13% 13% 11% 2	6952

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	28% 18% 29% 19% 6% 1	200
	11th to 20th	Day	13% 24% 25% 24% 12% 3	200
	21st to end	Day	13% 17% 28% 25% 15% 3	430
February	1st to 10th	Day	17% 20% 25% 25% 13% 1	400
	11th to 20th	Day	17% 22% 26% 28% 7%	452
	21st to end	Day	14% 20% 29% 28% 8% 1	414
March	1st to 10th	Day	18% 25% 31% 18% 7% 1	500
	11th to 20th	Day	16% 21% 28% 22% 12% 1	500
	21st to end	Day	17% 24% 29% 22% 6% 1	550
April	1st to 10th	Day	17% 21% 29% 22% 10% 1	500
	11th to 20th	Day	16% 20% 29% 23% 10% 2	492
	21st to end	Day	11% 19% 28% 25% 13% 3	500
May	1st to 10th	Day	14% 17% 31% 24% 12% 3	503
	11th to 20th	Day	16% 17% 28% 21% 13% 5%	528
	21st to end	Day	13% 11% 22% 28% 20% 7%	573
June	1st to 10th	Day	8% 13% 22% 28% 21% 7%	530
	11th to 20th	Day	8% 18% 28% 25% 17% 4	530
	21st to end	Day	3 8% 23% 32% 26% 8%	530
July	1st to 10th	Day	2 5% 25% 36% 25% 7%	526
	11th to 20th	Day	2 3 26% 37% 23% 10%	524
	21st to end	Day	3 6% 22% 34% 26% 10%	575
August	1st to 10th	Day	2 3 26% 31% 25% 12%	527
	11th to 20th	Day	3 7% 20% 33% 24% 12%	517
	21st to end	Day	3 6% 23% 31% 27% 9%	583
September	1st to 10th	Day	2 5% 26% 34% 26% 7%	530
	11th to 20th	Day	7% 9% 24% 29% 26% 6%	523
	21st to end	Day	5% 12% 24% 30% 25% 3	490
October	1st to 10th	Day	9% 9% 25% 28% 23% 5%	490
	11th to 20th	Day	11% 14% 18% 28% 23% 5%	490
	21st to end	Day	11% 16% 25% 27% 16% 5%	474
November	1st to 10th	Day	16% 13% 22% 28% 19% 1	300
	11th to 20th	Day	13% 13% 27% 27% 16% 4	297
	21st to end	Day	12% 15% 25% 30% 17% 3	200
December	1st to 10th	Day	13% 18% 21% 28% 17% 5%	200
	11th to 20th	Day	15% 23% 25% 22% 14% 3	200
	21st to end	Day	19% 18% 23% 27% 12% 1	220
January	1st to 10th	Night	14% 13% 25% 29% 14% 4	800
	11th to 20th	Night	11% 15% 23% 31% 17% 3	800
	21st to end	Night	14% 10% 23% 32% 17% 4	880
February	1st to 10th	Night	13% 11% 24% 35% 16% 1	800
	11th to 20th	Night	12% 13% 23% 34% 15% 3	784
	21st to end	Night	10% 15% 23% 38% 13% 1	660
March	1st to 10th	Night	15% 18% 24% 29% 12% 3	800
	11th to 20th	Night	12% 15% 22% 30% 19% 2	800
	21st to end	Night	14% 19% 24% 29% 13% 1	880
April	1st to 10th	Night	11% 13% 25% 35% 13% 2	800
	11th to 20th	Night	12% 13% 25% 30% 16% 4	791
	21st to end	Night	12% 12% 20% 35% 19% 2	800
May	1st to 10th	Night	10% 9% 29% 33% 18% 1	556
	11th to 20th	Night	12% 8% 18% 35% 23% 4	394
	21st to end	Night	11% 8% 18% 34% 26% 3	433
June	1st to 10th	Night	9% 7% 15% 45% 24% 2	400
	11th to 20th	Night	6% 7% 22% 45% 19% 2	400
	21st to end	Night	2 3 14% 52% 29% 1	400
July	1st to 10th	Night	1 1 9% 56% 32% 1	390
	11th to 20th	Night	1 12% 59% 28% 1	388
	21st to end	Night	2 1 3 56% 37% 2	444
August	1st to 10th	Night	3 6% 49% 37% 5%	597
	11th to 20th	Night	1 2 11% 46% 35% 5%	724
	21st to end	Night	2 1 11% 45% 37% 3	880
September	1st to 10th	Night	2 2 12% 46% 34% 5%	800
	11th to 20th	Night	5% 3 15% 31% 39% 9%	792
	21st to end	Night	7% 4 14% 36% 30% 9%	760
October	1st to 10th	Night	6% 6% 15% 39% 28% 6%	760
	11th to 20th	Night	7% 7% 12% 37% 30% 6%	760
	21st to end	Night	9% 10% 14% 38% 22% 7%	836
November	1st to 10th	Night	13% 9% 19% 34% 21% 5%	780
	11th to 20th	Night	14% 11% 23% 34% 16% 3	800
	21st to end	Night	9% 14% 22% 33% 18% 4	800
December	1st to 10th	Night	11% 12% 21% 35% 18% 3	800
	11th to 20th	Night	16% 13% 22% 29% 17% 3	800
	21st to end	Night	20% 17% 23% 30% 8% 1	880

Page generated at 2025-09-15 22:49:15. Version ac07

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