Introduction

When Steve Loft was about to retire from involvement with Cumulus, he wanted to close his web server. Consequently, a new host was needed for Wiki and the software that had been on the old server.

The Cumulus Wiki was copied by Ken True to this site in October, 2018 as part of the shutdown of Steve's sandaysoft.com website with his retirement, and the software files were moved at same time. Consequently, the Cumulus 1 files were linked to this "Downloads" page by Ken at that time, as part of the migration of the Wiki.

The next month (November 2018), Steve Loft sought a new host for the support forum, as next part of closing his web server. Consequently, a new host was needed for the forum and the files linked to it that included links to the MX beta he was writing and hosting on his web server. When Niall ("Freddie") took over hosting of the forum, the MX software that had been linked from the forum was moved to the Wiki on a new page called Software. It appears (as the main page suggests "We've added download links for Cumulus V1 and Cumulus MX in the new Software/Downloads page ") there was a bit of conflict between Ken maintaining Cumulus 1 who created "Downloads", Mark, taking over Cumulus MX who created a separate page called software and Niall (the forum host) who rewrote the latter to partially merge them on that new Software page with Cumulus 1 downgraded to legacy. Unfortunately, Niall was so keen to promote the move to MX, he deliberately made it more difficult to find the files attached to this page, also he overlooked that "Downloads" page was already referenced from other pages and those links were not updated.

Consequently, I have modified this Wiki page back to a proper page, it now contains direct links to Cumulus 1 software download, but everything else related to Cumulus 1 for future reference (and historic interest). Subsequently, the Software page has been improved, and now has better links to Cumulus 1 and the patch.

Final Cumulus 1 version

The final production version of Cumulus 1 (running in Windows for all supported weather stations) is not being supported any more. Existing Cumulus 1 users can update to this final stable installation version, download it here.

Having updated to that version, there is a patch available here which simply replaces the file "Cumulus.exe" from above version. Whilst you can type any year you like into selection boxes on view month, view year, view period, and view NOAA report, this patch allows you to select years up to 2030 from a drop down in the relevant screen box.

Earlier Versions

Steve Loft, as well as updating the support forum with announcements about his releases for Cumulus 1, maintained an abbreviated summary in changes.txt, find it at File:Changes.zip. It covers all releases back to version 1.0, the first release on 27 January 2004.

For the way dayfile.txt changed between versions, see that link.

For the logs created each month, see the example lines below:

0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	
Date (dd/mm/yy)	Time	Temperature	Humidity	Dew point	Wind speed	Recent high gust	Average wind bearing	Rainfall rate	Rainfall so far	Sea level pressure	Rainfall counter	Inside temperature	Inside humidity	Current gust	Wind chill	Heat Index	UV Index	Solar Radiation	Evapotranspiration	Annual Evapotranspiration	Apparent temperature	Max Solar radiation	Hours of sunshine	Wind bearing	RG-11 rain today	rain since midnight	
30-09-10	21:00	15.3	94	14.3	20.2	35.6	358	10.8	46.8	991	73.5	25.8	60	28.1	14	15.3	0	0	(version 1.9.0)								
22/04/11	10:30	8.1	96	7.5	13	20	142	0	0	1013.28	215.2	20.2	53	11	4.8	8.1	0	216	0.08	171.88	3.3	673	0	(version 1.9.1)			
01/10/11	04:40	18	75	13.5	5	6.7	169	0	0	1021.4	885.3	24.4	61	5.6	18	18	0	0	0	0	17.5	0	0	158	(version 1.9.2)		
01/05/12	04:40	18	75	13.5	5	6.7	169	0	0	1021.4	885.3	24.4	61	5.6	18	18	0	0	0	0	17.5	0	0	158	0	(version 1.9.3)	
02/10/13	22:40	14.2	99	14.1	0	0.7	207	0	0.3	29.85	961.5	119.5	53	0.7	14.2	14.2	0	0	0	0	15.5	0	0	225	0	2.4	(version 1.9.4)

Special Cumulus 1 versions

If you are an Instromet user, and your logger operates at 115200 baud, you should use special build 1100 at special 1.9.4 build 1100.

If you are an Instromet user, and your logger operates at 19200 baud, you should use special build 1101 at special 1.9.4 build 1101.