Indian Lakes RV Campground
Clear Sky Chart
History

This sumarizes the distribution of each different forecast outcome for the Indian Lakes RV Campground clear sky chart from 2005-11-06 to 2025-01-07.

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	14% 9% 3 7% 5% 4 4 4 6% 7% 37%	105061
	Night	14% 10% 3 7% 4 4 4 3 5% 6% 37%	103991
Transparency	Day	44% 6% 11% 22% 15% 2	108732
	Night	45% 6% 11% 22% 15% 2	108447
Seeing	Day	18% 14% 27% 22% 13% 5%	15619
	Night	18% 11% 28% 27% 14% 2	25459

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	14% 16% 7% 9% 5% 5% 4 3 4 6% 27%	2575
	11th to 20th	Day	16% 12% 4 14% 5% 8% 7% 4 5% 3 21%	2563
	21st to end	Day	27% 17% 8% 9% 4 4 3 2 3 4 19%	3124
February	1st to 10th	Day	17% 14% 5% 8% 5% 3 3 4 4 5% 30%	1852
	11th to 20th	Day	14% 13% 4 9% 5% 4 5% 3 5% 6% 32%	1848
	21st to end	Day	18% 14% 5% 9% 4 3 3 2 5% 5% 32%	1570
March	1st to 10th	Day	21% 17% 5% 8% 4 3 3 2 4 5% 27%	3120
	11th to 20th	Day	14% 8% 3 5% 4 4 3 4 5% 6% 42%	3445
	21st to end	Day	16% 9% 3 7% 5% 5% 5% 4 5% 7% 34%	3841
April	1st to 10th	Day	15% 10% 3 9% 4 5% 4 4 6% 7% 35%	2280
	11th to 20th	Day	16% 9% 2 7% 4 4 4 3 5% 6% 39%	2271
	21st to end	Day	18% 8% 3 7% 4 5% 5% 4 6% 6% 34%	2470
May	1st to 10th	Day	20% 10% 3 7% 5% 5% 5% 4 6% 8% 29%	4082
	11th to 20th	Day	21% 8% 2 5% 3 3 4 3 5% 7% 38%	4081
	21st to end	Day	11% 6% 3 8% 5% 5% 6% 5% 7% 10% 35%	4476
June	1st to 10th	Day	11% 6% 2 6% 5% 5% 5% 4 6% 7% 42%	2560
	11th to 20th	Day	9% 5% 2 6% 4 5% 5% 4 6% 8% 45%	2660
	21st to end	Day	9% 7% 2 7% 5% 4 5% 5% 7% 9% 41%	2660
July	1st to 10th	Day	13% 7% 2 7% 5% 5% 5% 4 6% 10% 37%	4440
	11th to 20th	Day	6% 5% 2 5% 4 4 5% 5% 8% 10% 46%	4422
	21st to end	Day	10% 7% 3 8% 6% 6% 7% 6% 8% 9% 31%	4466
August	1st to 10th	Day	8% 5% 2 6% 4 4 4 4 7% 11% 45%	4104
	11th to 20th	Day	8% 6% 2 6% 5% 5% 5% 4 7% 11% 41%	3982
	21st to end	Day	5% 4 2 5% 4 4 4 3 5% 9% 54%	4180
September	1st to 10th	Day	13% 5% 2 6% 5% 4 5% 5% 5% 6% 46%	2195
	11th to 20th	Day	9% 5% 2 5% 4 5% 5% 4 6% 8% 47%	2090
	21st to end	Day	14% 5% 2 6% 4 4 4 2 4 6% 48%	2090
October	1st to 10th	Day	10% 5% 2 7% 5% 4 4 4 4 6% 49%	2090
	11th to 20th	Day	11% 7% 2 6% 3 3 4 4 5% 7% 46%	1965
	21st to end	Day	18% 10% 3 6% 4 3 3 3 6% 6% 38%	1895
November	1st to 10th	Day	9% 7% 2 6% 4 4 3 2 4 6% 53%	1762
	11th to 20th	Day	14% 11% 4 8% 4 4 4 4 6% 6% 37%	1800
	21st to end	Day	18% 10% 3 8% 6% 4 3 2 4 6% 36%	1800
December	1st to 10th	Day	16% 11% 3 7% 5% 4 3 2 3 5% 41%	2930
	11th to 20th	Day	16% 13% 6% 11% 6% 5% 4 3 5% 5% 27%	3373
	21st to end	Day	21% 20% 6% 9% 4 5% 4 3 4 5% 18%	3999
January	1st to 10th	Night	16% 16% 6% 11% 6% 4 5% 3 5% 6% 22%	4513
	11th to 20th	Night	14% 17% 6% 14% 7% 5% 4 3 4 5% 21%	4402
	21st to end	Night	25% 16% 7% 9% 4 4 3 2 3 4 23%	4532
February	1st to 10th	Night	20% 12% 4 9% 5% 5% 4 3 5% 4 28%	2324
	11th to 20th	Night	14% 11% 3 9% 6% 4 4 3 6% 7% 33%	2218
	21st to end	Night	20% 14% 4 8% 4 4 3 4 5% 5% 30%	1884
March	1st to 10th	Night	20% 13% 3 6% 4 4 3 3 4 6% 32%	3733
	11th to 20th	Night	11% 7% 3 6% 4 4 4 3 5% 7% 46%	3513
	21st to end	Night	16% 8% 3 7% 5% 4 4 3 5% 6% 40%	3817
April	1st to 10th	Night	12% 10% 3 7% 5% 4 4 4 6% 7% 38%	1900
	11th to 20th	Night	15% 8% 3 5% 4 3 5% 4 6% 6% 40%	1856
	21st to end	Night	17% 6% 3 8% 5% 4 4 4 7% 7% 37%	1710
May	1st to 10th	Night	19% 12% 3 9% 5% 4 5% 3 6% 7% 27%	2813
	11th to 20th	Night	17% 7% 3 7% 4 3 4 3 6% 7% 39%	2812
	21st to end	Night	8% 6% 2 6% 4 4 5% 4 6% 10% 45%	3079
June	1st to 10th	Night	10% 5% 2 6% 5% 4 4 4 6% 8% 48%	1614
	11th to 20th	Night	7% 5% 2 6% 4 4 4 4 7% 12% 46%	1520
	21st to end	Night	5% 4 2 5% 4 5% 4 5% 8% 10% 48%	1520
July	1st to 10th	Night	9% 6% 2 5% 4 4 4 4 6% 8% 47%	2530
	11th to 20th	Night	5% 4 1 4 4 4 4 4 7% 9% 54%	2544
	21st to end	Night	10% 8% 2 7% 5% 5% 5% 4 8% 10% 37%	3087
August	1st to 10th	Night	8% 6% 2 6% 4 5% 5% 3 6% 10% 45%	2825
	11th to 20th	Night	6% 7% 2 6% 4 4 4 4 6% 7% 48%	2843
	21st to end	Night	3 3 2 4 3 4 4 4 6% 9% 58%	3476
September	1st to 10th	Night	12% 5% 1 6% 3 3 3 4 5% 6% 52%	1964
	11th to 20th	Night	8% 4 2 4 3 3 4 4 5% 8% 54%	2090
	21st to end	Night	14% 6% 2 5% 4 3 3 3 4 6% 49%	2090
October	1st to 10th	Night	10% 5% 2 4 3 4 3 2 5% 7% 56%	2090
	11th to 20th	Night	13% 6% 2 6% 4 4 4 3 5% 6% 46%	2213
	21st to end	Night	16% 8% 3 6% 5% 5% 4 3 4 6% 41%	2698
November	1st to 10th	Night	12% 7% 2 6% 4 4 4 3 4 7% 48%	2536
	11th to 20th	Night	15% 8% 3 7% 4 4 4 3 5% 7% 40%	2600
	21st to end	Night	17% 12% 4 8% 5% 4 3 3 5% 6% 32%	2600
December	1st to 10th	Night	17% 10% 4 8% 4 3 4 3 4 5% 38%	4250
	11th to 20th	Night	18% 13% 6% 11% 5% 5% 4 3 5% 5% 26%	4822
	21st to end	Night	23% 18% 7% 11% 5% 4 4 3 4 4 18%	6973

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	59% 4 9% 18% 9%	2576
	11th to 20th	Day	63% 5% 13% 14% 5%	2563
	21st to end	Day	70% 4 8% 14% 3 1	3124
February	1st to 10th	Day	56% 4 11% 17% 11% 1	1852
	11th to 20th	Day	53% 5% 10% 21% 11% 1	1858
	21st to end	Day	55% 3 9% 22% 9% 2	1570
March	1st to 10th	Day	59% 5% 7% 18% 9% 2	3120
	11th to 20th	Day	41% 6% 10% 26% 16% 1	3445
	21st to end	Day	48% 6% 14% 21% 10% 1	3841
April	1st to 10th	Day	46% 7% 11% 22% 12% 1	2280
	11th to 20th	Day	46% 6% 10% 22% 14% 3	2271
	21st to end	Day	48% 6% 10% 22% 12% 2	2470
May	1st to 10th	Day	52% 8% 13% 20% 8% 1	4120
	11th to 20th	Day	46% 6% 12% 23% 12% 1	4085
	21st to end	Day	40% 9% 15% 18% 16% 2	4489
June	1st to 10th	Day	40% 7% 11% 24% 16% 3	2560
	11th to 20th	Day	36% 8% 13% 23% 19% 2	2660
	21st to end	Day	37% 9% 15% 20% 16% 4	2660
July	1st to 10th	Day	41% 7% 12% 20% 18% 2	4371
	11th to 20th	Day	30% 8% 12% 28% 20% 1	4347
	21st to end	Day	44% 10% 14% 16% 13% 3	4324
August	1st to 10th	Day	31% 9% 16% 30% 13% 1	4091
	11th to 20th	Day	35% 8% 12% 31% 14% 1	4021
	21st to end	Day	27% 7% 14% 29% 19% 4	4179
September	1st to 10th	Day	37% 7% 10% 22% 19% 6%	2195
	11th to 20th	Day	33% 6% 12% 24% 20% 3	2090
	21st to end	Day	37% 5% 10% 24% 21% 2	2090
October	1st to 10th	Day	24% 4 8% 30% 32% 2	3480
	11th to 20th	Day	29% 5% 9% 29% 26% 2	3244
	21st to end	Day	37% 3 9% 24% 24% 2	3095
November	1st to 10th	Day	35% 4 10% 28% 20% 3	1762
	11th to 20th	Day	46% 5% 9% 21% 15% 4	1800
	21st to end	Day	51% 4 8% 22% 14% 1	1800
December	1st to 10th	Day	48% 3 9% 27% 12%	2930
	11th to 20th	Day	60% 6% 8% 18% 9%	3370
	21st to end	Day	67% 5% 10% 11% 6%	3999
January	1st to 10th	Night	61% 6% 10% 14% 9%	4513
	11th to 20th	Night	66% 4 10% 14% 7%	4402
	21st to end	Night	66% 3 7% 16% 7% 1	4532
February	1st to 10th	Night	58% 4 11% 18% 7% 1	2324
	11th to 20th	Night	50% 5% 12% 20% 12% 1	2219
	21st to end	Night	56% 5% 10% 17% 10% 2	1884
March	1st to 10th	Night	53% 4 8% 23% 11% 1	3733
	11th to 20th	Night	37% 6% 13% 25% 18% 2	3513
	21st to end	Night	45% 5% 10% 28% 11% 1	3817
April	1st to 10th	Night	43% 6% 11% 25% 13% 2	1900
	11th to 20th	Night	42% 6% 10% 19% 17% 5%	1856
	21st to end	Night	44% 8% 10% 22% 13% 3	1710
May	1st to 10th	Night	55% 8% 10% 19% 7% 2	2840
	11th to 20th	Night	43% 7% 14% 26% 9% 1	2813
	21st to end	Night	32% 10% 15% 25% 14% 4	3087
June	1st to 10th	Night	33% 8% 10% 25% 21% 2	1614
	11th to 20th	Night	30% 7% 13% 23% 22% 4	1520
	21st to end	Night	28% 10% 16% 23% 17% 5%	1520
July	1st to 10th	Night	34% 8% 11% 24% 18% 6%	2490
	11th to 20th	Night	25% 7% 14% 32% 20% 2	2496
	21st to end	Night	39% 7% 15% 23% 12% 4	2988
August	1st to 10th	Night	33% 8% 14% 32% 12% 1	2814
	11th to 20th	Night	32% 7% 12% 30% 18% 1	2870
	21st to end	Night	22% 7% 15% 31% 22% 3	3476
September	1st to 10th	Night	32% 6% 13% 22% 19% 7%	1964
	11th to 20th	Night	27% 6% 11% 26% 26% 4	2090
	21st to end	Night	36% 6% 9% 22% 24% 3	2090
October	1st to 10th	Night	21% 4 7% 25% 41% 3	3480
	11th to 20th	Night	27% 4 9% 24% 34% 2	3673
	21st to end	Night	34% 4 8% 23% 25% 6%	4436
November	1st to 10th	Night	37% 5% 10% 22% 23% 3	2536
	11th to 20th	Night	43% 4 9% 21% 18% 4	2600
	21st to end	Night	53% 5% 9% 20% 12% 1	2600
December	1st to 10th	Night	48% 4 11% 25% 11%	4250
	11th to 20th	Night	59% 5% 10% 16% 9% 1	4824
	21st to end	Night	70% 4 9% 13% 4	6973

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	23% 25% 35% 14% 3	288
	11th to 20th	Day	33% 22% 33% 11% 1	270
	21st to end	Day	30% 25% 30% 12% 3	297
February	1st to 10th	Day	25% 30% 31% 12% 1	270
	11th to 20th	Day	29% 27% 32% 10% 1	270
	21st to end	Day	33% 22% 36% 7% 1	225
March	1st to 10th	Day	26% 31% 30% 10% 2	270
	11th to 20th	Day	26% 24% 32% 14% 3 1	438
	21st to end	Day	31% 20% 29% 15% 5% 1	506
April	1st to 10th	Day	23% 21% 29% 17% 7% 2	460
	11th to 20th	Day	23% 21% 25% 21% 8% 3	452
	21st to end	Day	23% 22% 32% 14% 7% 2	460
May	1st to 10th	Day	26% 14% 35% 15% 6% 4	463
	11th to 20th	Day	22% 13% 26% 23% 10% 5%	487
	21st to end	Day	13% 11% 28% 22% 16% 10%	529
June	1st to 10th	Day	13% 10% 28% 27% 17% 6%	580
	11th to 20th	Day	11% 7% 24% 32% 20% 6%	680
	21st to end	Day	11% 8% 29% 30% 14% 7%	680
July	1st to 10th	Day	13% 4 19% 29% 22% 14%	671
	11th to 20th	Day	7% 5% 26% 32% 21% 10%	663
	21st to end	Day	11% 4 21% 31% 24% 9%	532
August	1st to 10th	Day	8% 4 21% 28% 24% 15%	486
	11th to 20th	Day	11% 6% 21% 32% 20% 10%	479
	21st to end	Day	7% 6% 18% 27% 29% 13%	539
September	1st to 10th	Day	11% 4 18% 31% 27% 8%	490
	11th to 20th	Day	10% 2 19% 28% 30% 12%	490
	21st to end	Day	19% 9% 21% 25% 20% 6%	490
October	1st to 10th	Day	10% 7% 27% 31% 19% 6%	490
	11th to 20th	Day	14% 16% 33% 20% 13% 3	490
	21st to end	Day	23% 16% 40% 17% 4	344
November	1st to 10th	Day	13% 23% 33% 21% 9% 2	300
	11th to 20th	Day	23% 22% 28% 20% 5% 2	300
	21st to end	Day	27% 16% 38% 17% 3	300
December	1st to 10th	Day	23% 26% 32% 14% 5%	300
	11th to 20th	Day	22% 23% 40% 11% 5%	300
	21st to end	Day	30% 24% 31% 13% 2	330
January	1st to 10th	Night	23% 21% 32% 20% 4	981
	11th to 20th	Night	27% 19% 34% 17% 2	925
	21st to end	Night	24% 19% 33% 21% 3	836
February	1st to 10th	Night	26% 15% 36% 21% 2	760
	11th to 20th	Night	23% 20% 36% 19% 2	743
	21st to end	Night	29% 16% 35% 19% 1	628
March	1st to 10th	Night	23% 18% 32% 24% 3	760
	11th to 20th	Night	22% 15% 37% 20% 5% 1	760
	21st to end	Night	25% 12% 32% 26% 6%	836
April	1st to 10th	Night	17% 12% 37% 27% 7%	570
	11th to 20th	Night	21% 12% 30% 26% 10% 1	563
	21st to end	Night	21% 10% 38% 22% 9% 1	570
May	1st to 10th	Night	20% 11% 34% 24% 11% 1	570
	11th to 20th	Night	18% 5% 28% 29% 18% 2	561
	21st to end	Night	10% 4 25% 33% 26% 3	617
June	1st to 10th	Night	10% 3 23% 41% 21% 1	570
	11th to 20th	Night	9% 5% 20% 42% 22% 2	570
	21st to end	Night	6% 3 27% 38% 24% 2	570
July	1st to 10th	Night	11% 3 17% 30% 31% 8%	555
	11th to 20th	Night	7% 4 16% 38% 31% 5%	552
	21st to end	Night	11% 3 14% 39% 28% 4	624
August	1st to 10th	Night	8% 2 14% 38% 34% 4	567
	11th to 20th	Night	8% 2 15% 40% 31% 5%	564
	21st to end	Night	5% 2 15% 33% 37% 7%	627
September	1st to 10th	Night	13% 4 14% 35% 29% 5%	634
	11th to 20th	Night	9% 4 15% 33% 33% 6%	760
	21st to end	Night	15% 7% 24% 30% 22% 3	760
October	1st to 10th	Night	12% 6% 24% 31% 23% 5%	760
	11th to 20th	Night	16% 10% 29% 29% 14% 2	760
	21st to end	Night	20% 12% 33% 24% 10%	836
November	1st to 10th	Night	17% 10% 32% 26% 15% 1	780
	11th to 20th	Night	20% 17% 29% 24% 9% 1	800
	21st to end	Night	23% 17% 26% 30% 5%	800
December	1st to 10th	Night	25% 17% 32% 21% 5%	800
	11th to 20th	Night	24% 16% 34% 20% 6% 1	800
	21st to end	Night	29% 18% 31% 18% 4	1090

Page generated at 2025-01-04 03:23:58. Version ac07

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