To begin, a slight word of caution. There has been much discussion and debate about how the various calendars are formed because the Anglo-Saxon year was based on a Luni-Solar calendar. The year was separated into a number of months based on the phases of the moon, however it was aligned to the Solstice’s marking Midsummer and Midwinter accordingly. In reaching the dates for my calendar, I have taken note of the fact that the New Moon was only considered such once the first slither of light from the Moon appeared in the night sky, which is normally considered to be approximately one to two days after what we consider to be the New Moon in today’s society (Which is actually a dark moon). What this means, in short, is that the first slither of light in the night sky signalled the beginning of a new month, and that is reflected below in my calendar. Now calendars will vary according to the location of the relevant hearth so the calendar should be tweaked accordingly. A great resource for finding out the new and full moons for 2018 and beyond can be found on MoonPhases.co.uk
I should also point out that some have disputed where the Winterfylleð full moon fell in 2017. Some have it as 3rd into 4th of November 2017, whilst others celebrated it on 5th October. However, that would mean the Blōtmōnað full moon would be on 3rd into 4th November and Ærra Gēola full moon on 3rd December, with Æfterra Gēola commencing on 19th December, which is actually before Yule itself on 21st December when it should be after it! The clue is in the name, as Æfterra Gēola means “Following Yule” or even more directly, “After Yule”.
Consequently having Winterfylleð on 5th October 2017 throws out the whole calendar for 2018 by making the subsequent months start too early. By that reckoning, Winterfylleð in 2018 would actually start on 11th September which is far too early for a Winter full moon, as it is before even the Autumn Equinox would be! Now I know that Bede suggests that Winterfylleð fell on the first full moon after the Equinox, however whilst that may usually have been the case, it would not be unusual for it to land on the second full moon after the Equinox in an intercalated year, which is what 2017 is by the reckoning of the vast majority of interested parties.
In any event, the below calendar is relevant to my hearth and may not be relevant to others. It is set to UK time; hence the full and new moons are set to GMT making the calendar more accurate than my previous version and slightly different to that of the Ealdríce calendar who have used similar principles when devising their calendar. People may use it as a guide or verbatim, it matters not. I will be celebrating Blōstmfrēols this coming year and it is a relatively new reconstruction from the excellent article on the Lārhūs Fyrnsida website, written earlier in 2017. You can find the original article here
It helpfully suggests a date towards the end of April and beginning of May as a possible place for this festival, viewing it as a fine ending to the Ēostre period. Now because I follow the Anglo-Saxon calendar as opposed to the Gregorian, for me this would not sit on a set date each year. I have decided, therefore, to set the festival at the very end of Ēostremōnað on the very last day that a slither of moon would appear in the night sky. For 2018, this will be on 14th May in the UK. Þrimilcemōnað will begin on 16th May so it sits well with me to use the 14th as the date for this new and very welcome festival.
Also, some of the more eagle-eyed may note that I don’t celebrate Hærfest on 1st August each year as for me I again align that festival to the full moon which is normally in Weodmōnað or Þrilīða depending on the year.
And so, my calendar for 2018 is as per the below. Please do feel free to use and reproduce as you deem fit: