Kakabeka Falls
Clear Sky Chart
History

This sumarizes the distribution of each different forecast outcome for the Kakabeka Falls clear sky chart from 2005-11-06 to 2026-07-01.

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	12% 9% 3 8% 5% 5% 5% 4 6% 7% 35%	137963
	Night	11% 10% 4 9% 5% 5% 5% 4 6% 7% 34%	134708
Transparency	Day	47% 5% 12% 23% 12% 1	141368
	Night	49% 5% 12% 22% 11% 1	139389
Seeing	Day	18% 15% 35% 21% 9% 2	18343
	Night	18% 11% 31% 29% 10% 1	28390

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	6% 13% 5% 13% 7% 5% 5% 3 6% 6% 31%	4691
	11th to 20th	Day	5% 13% 7% 15% 6% 4 5% 5% 8% 9% 23%	4679
	21st to end	Day	6% 11% 6% 12% 7% 6% 6% 5% 6% 7% 26%	5156
February	1st to 10th	Day	8% 12% 3 12% 6% 4 5% 5% 5% 7% 33%	1794
	11th to 20th	Day	8% 12% 4 8% 6% 5% 5% 4 5% 7% 36%	1848
	21st to end	Day	6% 15% 5% 11% 7% 4 5% 3 6% 7% 32%	1730
March	1st to 10th	Day	11% 11% 3 8% 5% 4 4 4 5% 6% 39%	4578
	11th to 20th	Day	8% 12% 5% 10% 6% 5% 5% 4 5% 6% 33%	4897
	21st to end	Day	18% 15% 4 10% 5% 4 3 3 4 4 30%	6025
April	1st to 10th	Day	14% 12% 3 10% 6% 5% 4 4 5% 7% 30%	2520
	11th to 20th	Day	16% 11% 4 11% 5% 5% 4 4 5% 6% 29%	2494
	21st to end	Day	18% 12% 4 8% 5% 4 4 4 4 5% 32%	2814
May	1st to 10th	Day	12% 8% 3 7% 4 4 4 4 5% 7% 42%	8241
	11th to 20th	Day	17% 8% 2 7% 4 4 3 3 5% 7% 40%	8222
	21st to end	Day	10% 6% 2 6% 4 4 4 4 6% 7% 46%	9061
June	1st to 10th	Day	14% 7% 3 7% 4 5% 5% 3 6% 8% 38%	2940
	11th to 20th	Day	14% 6% 3 7% 5% 5% 5% 4 7% 7% 36%	2940
	21st to end	Day	17% 6% 2 5% 5% 4 5% 5% 7% 8% 35%	2940
July	1st to 10th	Day	11% 4 1 5% 5% 5% 6% 5% 8% 9% 41%	6360
	11th to 20th	Day	11% 5% 2 6% 4 5% 6% 5% 7% 9% 41%	6360
	21st to end	Day	9% 5% 2 5% 4 5% 5% 4 7% 10% 43%	6926
August	1st to 10th	Day	8% 6% 3 8% 6% 6% 6% 5% 7% 9% 34%	4563
	11th to 20th	Day	13% 4 1 5% 4 4 5% 4 6% 8% 46%	4402
	21st to end	Day	11% 6% 2 6% 4 4 5% 5% 7% 9% 41%	4317
September	1st to 10th	Day	11% 6% 2 7% 6% 6% 5% 4 6% 8% 40%	2400
	11th to 20th	Day	14% 7% 3 7% 4 4 5% 4 6% 9% 37%	2359
	21st to end	Day	15% 11% 3 6% 5% 5% 4 4 5% 8% 34%	2189
October	1st to 10th	Day	16% 12% 4 7% 5% 4 3 4 5% 6% 35%	2000
	11th to 20th	Day	18% 13% 4 8% 6% 5% 4 3 7% 7% 26%	1948
	21st to end	Day	19% 15% 4 8% 5% 4 5% 3 4 6% 27%	1980
November	1st to 10th	Day	13% 12% 4 11% 7% 7% 6% 4 6% 6% 25%	1806
	11th to 20th	Day	14% 16% 6% 10% 6% 5% 4 4 5% 5% 24%	1680
	21st to end	Day	15% 13% 5% 10% 5% 5% 4 3 6% 7% 26%	1680
December	1st to 10th	Day	11% 13% 4 14% 7% 6% 6% 4 5% 6% 24%	2498
	11th to 20th	Day	8% 16% 6% 14% 5% 4 4 3 4 5% 31%	2855
	21st to end	Day	20% 21% 5% 8% 4 3 4 3 5% 5% 22%	4070
January	1st to 10th	Night	6% 13% 5% 12% 6% 6% 6% 4 5% 6% 31%	8233
	11th to 20th	Night	5% 12% 6% 17% 8% 6% 6% 6% 7% 6% 19%	8236
	21st to end	Night	5% 11% 6% 13% 7% 6% 6% 4 6% 7% 28%	9058
February	1st to 10th	Night	8% 11% 4 10% 6% 6% 6% 4 6% 8% 32%	2824
	11th to 20th	Night	9% 9% 4 8% 6% 6% 6% 5% 7% 7% 33%	2658
	21st to end	Night	8% 11% 5% 11% 7% 5% 6% 5% 7% 8% 28%	2076
March	1st to 10th	Night	10% 10% 3 8% 5% 4 5% 4 6% 7% 37%	5482
	11th to 20th	Night	9% 14% 5% 10% 6% 6% 6% 4 5% 8% 27%	5326
	21st to end	Night	17% 14% 4 8% 5% 4 4 4 4 5% 31%	5148
April	1st to 10th	Night	13% 12% 4 8% 7% 5% 4 4 6% 5% 33%	2100
	11th to 20th	Night	15% 12% 3 7% 4 4 4 4 6% 7% 33%	2075
	21st to end	Night	18% 10% 2 9% 5% 4 5% 4 5% 5% 33%	1803
May	1st to 10th	Night	13% 6% 2 6% 4 4 4 4 6% 7% 45%	4688
	11th to 20th	Night	18% 9% 3 8% 4 4 4 3 5% 5% 39%	4670
	21st to end	Night	13% 6% 2 6% 4 4 4 3 4 6% 49%	5148
June	1st to 10th	Night	14% 8% 3 6% 5% 6% 6% 4 5% 6% 37%	1680
	11th to 20th	Night	12% 8% 3 6% 5% 4 5% 5% 6% 8% 40%	1680
	21st to end	Night	14% 8% 2 6% 4 4 4 4 7% 7% 41%	1680
July	1st to 10th	Night	6% 5% 2 6% 5% 4 5% 4 6% 9% 47%	3620
	11th to 20th	Night	9% 5% 2 6% 4 4 4 4 6% 8% 47%	3620
	21st to end	Night	11% 5% 2 6% 4 4 4 4 7% 9% 45%	3948
August	1st to 10th	Night	11% 4 2 5% 4 3 5% 4 7% 10% 45%	2597
	11th to 20th	Night	11% 3 2 5% 4 4 4 4 7% 9% 48%	2655
	21st to end	Night	16% 6% 2 7% 3 3 3 3 5% 6% 46%	3581
September	1st to 10th	Night	13% 6% 2 5% 4 3 4 4 6% 6% 48%	2000
	11th to 20th	Night	12% 7% 2 7% 4 4 3 4 7% 8% 43%	2020
	21st to end	Night	17% 6% 3 8% 4 4 4 3 6% 7% 38%	2210
October	1st to 10th	Night	16% 8% 3 7% 4 4 4 3 4 6% 39%	2400
	11th to 20th	Night	13% 12% 3 8% 4 3 5% 4 4 7% 34%	2451
	21st to end	Night	17% 12% 4 9% 5% 4 5% 4 5% 7% 29%	2860
November	1st to 10th	Night	14% 11% 4 9% 6% 4 6% 4 6% 7% 29%	2708
	11th to 20th	Night	16% 13% 6% 11% 6% 5% 4 3 5% 6% 24%	2940
	21st to end	Night	14% 13% 4 12% 6% 5% 6% 4 6% 7% 25%	2940
December	1st to 10th	Night	11% 16% 5% 11% 7% 6% 6% 5% 7% 6% 21%	4890
	11th to 20th	Night	9% 13% 6% 13% 6% 5% 4 3 5% 7% 29%	5553
	21st to end	Night	20% 20% 5% 9% 5% 4 4 3 4 5% 22%	7150

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	53% 4 9% 20% 12% 1	4692
	11th to 20th	Day	57% 3 7% 24% 8%	4710
	21st to end	Day	57% 4 9% 19% 11% 1	5156
February	1st to 10th	Day	49% 7% 13% 18% 12% 2	1794
	11th to 20th	Day	47% 5% 13% 25% 9% 1	1857
	21st to end	Day	51% 5% 11% 17% 15% 1	1730
March	1st to 10th	Day	47% 4 12% 17% 16% 4	4580
	11th to 20th	Day	51% 6% 9% 18% 15% 1	4897
	21st to end	Day	58% 3 6% 15% 16% 2	6025
April	1st to 10th	Day	52% 6% 8% 20% 12% 2	2520
	11th to 20th	Day	55% 5% 11% 19% 9% 1	2494
	21st to end	Day	53% 5% 8% 18% 14% 1	2814
May	1st to 10th	Day	41% 3 10% 27% 17% 1	8250
	11th to 20th	Day	44% 4 10% 21% 19% 2	8226
	21st to end	Day	36% 5% 11% 26% 20% 2	9061
June	1st to 10th	Day	42% 7% 13% 21% 15% 1	2940
	11th to 20th	Day	43% 7% 13% 23% 12% 1	2940
	21st to end	Day	45% 7% 15% 22% 10% 1	2940
July	1st to 10th	Day	37% 5% 17% 30% 10% 1	6292
	11th to 20th	Day	39% 4 17% 33% 6%	6285
	21st to end	Day	36% 4 18% 32% 10%	6728
August	1st to 10th	Day	43% 6% 16% 26% 9% 1	4548
	11th to 20th	Day	36% 5% 21% 29% 10%	4444
	21st to end	Day	38% 5% 17% 30% 9%	4316
September	1st to 10th	Day	41% 8% 15% 27% 9%	2400
	11th to 20th	Day	43% 8% 21% 23% 4	2359
	21st to end	Day	46% 7% 16% 23% 6% 1	2189
October	1st to 10th	Day	41% 4 13% 29% 11% 2	3260
	11th to 20th	Day	50% 5% 11% 28% 5% 1	3151
	21st to end	Day	57% 5% 13% 19% 6%	3180
November	1st to 10th	Day	57% 7% 14% 15% 6% 1	1806
	11th to 20th	Day	61% 7% 10% 17% 6%	1680
	21st to end	Day	55% 8% 13% 16% 6% 1	1680
December	1st to 10th	Day	59% 5% 17% 14% 5%	2498
	11th to 20th	Day	57% 3 10% 11% 16% 2	2856
	21st to end	Day	67% 3 6% 18% 6%	4070
January	1st to 10th	Night	54% 4 10% 18% 12% 2	8233
	11th to 20th	Night	62% 3 7% 18% 9%	8280
	21st to end	Night	54% 4 10% 20% 11%	9058
February	1st to 10th	Night	49% 6% 13% 20% 11% 2	2824
	11th to 20th	Night	48% 5% 13% 22% 11% 1	2659
	21st to end	Night	53% 6% 10% 19% 11% 1	2076
March	1st to 10th	Night	45% 5% 11% 13% 18% 7%	5493
	11th to 20th	Night	53% 6% 13% 17% 10% 1	5327
	21st to end	Night	56% 3 6% 18% 15% 1	5148
April	1st to 10th	Night	52% 5% 8% 19% 15%	2100
	11th to 20th	Night	49% 5% 11% 22% 12% 2	2075
	21st to end	Night	51% 4 7% 22% 13% 2	1803
May	1st to 10th	Night	38% 3 11% 31% 15% 2	4695
	11th to 20th	Night	48% 4 7% 24% 14% 3	4671
	21st to end	Night	37% 4 9% 33% 17%	5149
June	1st to 10th	Night	46% 7% 11% 21% 13% 2	1680
	11th to 20th	Night	42% 7% 11% 25% 14% 1	1680
	21st to end	Night	40% 8% 16% 24% 10% 2	1680
July	1st to 10th	Night	35% 4 20% 26% 14% 1	3580
	11th to 20th	Night	36% 4 20% 32% 7%	3572
	21st to end	Night	37% 4 16% 33% 10% 1	3832
August	1st to 10th	Night	35% 4 20% 31% 9% 1	2588
	11th to 20th	Night	33% 5% 19% 34% 9%	2679
	21st to end	Night	42% 5% 15% 29% 9%	3581
September	1st to 10th	Night	34% 7% 17% 30% 11% 1	2000
	11th to 20th	Night	38% 8% 21% 29% 3	2020
	21st to end	Night	44% 7% 16% 27% 6%	2210
October	1st to 10th	Night	36% 4 14% 29% 17%	3920
	11th to 20th	Night	46% 5% 12% 27% 10%	3987
	21st to end	Night	56% 4 15% 19% 6%	4610
November	1st to 10th	Night	52% 7% 14% 20% 6%	2708
	11th to 20th	Night	59% 7% 12% 16% 6%	2940
	21st to end	Night	56% 7% 14% 17% 6%	2940
December	1st to 10th	Night	60% 5% 16% 16% 4	4890
	11th to 20th	Night	57% 4 11% 17% 11%	5551
	21st to end	Night	67% 3 6% 17% 6%	7150

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	13% 15% 38% 26% 8%	330
	11th to 20th	Day	15% 15% 38% 25% 7% 1	330
	21st to end	Day	14% 14% 42% 24% 5% 1	363
February	1st to 10th	Day	18% 17% 42% 18% 6%	330
	11th to 20th	Day	14% 22% 37% 22% 4 1	330
	21st to end	Day	16% 26% 39% 16% 2	273
March	1st to 10th	Day	16% 18% 46% 16% 3	330
	11th to 20th	Day	17% 23% 39% 15% 5% 1	330
	21st to end	Day	22% 18% 35% 17% 7% 1	557
April	1st to 10th	Day	21% 14% 36% 21% 6% 1	540
	11th to 20th	Day	24% 18% 27% 21% 8% 1	532
	21st to end	Day	27% 15% 29% 18% 9% 2	640
May	1st to 10th	Day	20% 22% 32% 17% 7% 3	753
	11th to 20th	Day	20% 16% 37% 18% 7% 2	775
	21st to end	Day	18% 15% 35% 22% 8% 2	844
June	1st to 10th	Day	18% 14% 39% 19% 8% 2	780
	11th to 20th	Day	18% 14% 38% 19% 8% 2	780
	21st to end	Day	18% 12% 36% 23% 9% 2	780
July	1st to 10th	Day	11% 11% 36% 26% 12% 4	722
	11th to 20th	Day	12% 12% 38% 23% 11% 5%	718
	21st to end	Day	9% 11% 37% 23% 14% 5%	794
August	1st to 10th	Day	12% 12% 36% 26% 10% 4	726
	11th to 20th	Day	15% 8% 29% 28% 14% 5%	715
	21st to end	Day	19% 11% 30% 23% 14% 3	588
September	1st to 10th	Day	13% 12% 32% 23% 15% 5%	530
	11th to 20th	Day	20% 11% 28% 25% 13% 4	530
	21st to end	Day	20% 14% 29% 20% 13% 3	519
October	1st to 10th	Day	22% 21% 31% 17% 8% 1	330
	11th to 20th	Day	24% 19% 36% 18% 3	330
	21st to end	Day	26% 23% 34% 12% 2 3	363
November	1st to 10th	Day	23% 22% 29% 19% 5% 1	330
	11th to 20th	Day	27% 21% 37% 9% 5% 2	330
	21st to end	Day	28% 17% 33% 16% 6%	330
December	1st to 10th	Day	18% 16% 33% 26% 6% 2	269
	11th to 20th	Day	23% 18% 38% 16% 5%	259
	21st to end	Day	24% 20% 29% 19% 7% 1	363
January	1st to 10th	Night	14% 16% 38% 26% 6%	1050
	11th to 20th	Night	18% 12% 38% 24% 6% 1	1050
	21st to end	Night	16% 11% 39% 27% 7%	1155
February	1st to 10th	Night	16% 13% 37% 26% 7% 1	1050
	11th to 20th	Night	16% 13% 34% 27% 8% 1	1024
	21st to end	Night	14% 13% 39% 26% 7%	692
March	1st to 10th	Night	15% 12% 35% 30% 6% 1	840
	11th to 20th	Night	18% 16% 33% 25% 8%	737
	21st to end	Night	19% 11% 29% 28% 11% 2	693
April	1st to 10th	Night	19% 11% 31% 30% 8% 1	630
	11th to 20th	Night	21% 13% 26% 30% 11% 1	623
	21st to end	Night	22% 6% 27% 34% 10% 1	630
May	1st to 10th	Night	21% 11% 24% 32% 11% 1	630
	11th to 20th	Night	19% 7% 30% 31% 11% 1	621
	21st to end	Night	20% 7% 25% 36% 12% 1	683
June	1st to 10th	Night	19% 5% 26% 36% 13% 1	630
	11th to 20th	Night	16% 7% 24% 40% 12% 1	630
	21st to end	Night	17% 6% 25% 37% 14% 1	630
July	1st to 10th	Night	11% 5% 27% 40% 16% 1	585
	11th to 20th	Night	10% 5% 29% 36% 18% 1	582
	21st to end	Night	9% 4 26% 39% 21% 2	657
August	1st to 10th	Night	11% 4 30% 38% 16% 1	597
	11th to 20th	Night	13% 6% 20% 34% 24% 3	594
	21st to end	Night	18% 5% 23% 34% 18% 2	660
September	1st to 10th	Night	15% 6% 24% 32% 21% 3	600
	11th to 20th	Night	19% 6% 26% 33% 14% 2	620
	21st to end	Night	20% 10% 24% 31% 13% 1	800
October	1st to 10th	Night	22% 13% 29% 23% 12% 1	800
	11th to 20th	Night	21% 12% 33% 26% 8%	800
	21st to end	Night	23% 12% 30% 26% 8%	880
November	1st to 10th	Night	21% 13% 32% 25% 8% 1	862
	11th to 20th	Night	24% 15% 33% 19% 8% 2	1050
	21st to end	Night	22% 18% 30% 24% 5%	1050
December	1st to 10th	Night	19% 15% 34% 24% 8% 1	1050
	11th to 20th	Night	20% 15% 32% 23% 8% 1	1050
	21st to end	Night	26% 15% 30% 23% 5% 1	1155

Page generated at 2026-06-28 02:10:46. Version ac07

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