18 Feb 2021

Days without sunspots

Last month we had quite hopeful signs on the sunspot count for cycle 25. Currently we have had many days without spots. 

I see that Southgate News has some details of spotless days broken down by years. I have no idea what the current view is of the size of sunspot peak for cycle 25.

Spotless Days

Current Stretch: 14 days 

2021 total: 31 days (63%)

2020 total: 208 days (57%)

2019 total: 281 days (77%)

2018 total: 221 days (61%)

2017 total: 104 days (28%)

2016 total: 32 days (9%)

2015 total: 0 days (0%)

2014 total: 1 day (<1%)

2013 total: 0 days (0%)

2012 total: 0 days (0%)

2011 total: 2 days (<1%)

2010 total: 51 days (14%)

2009 total: 260 days (71%)

2008 total: 268 days (73%)

2007 total: 152 days (42%)

2006 total: 70 days (19%)


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