CoCoRaHS Rain Gauge Rally contest has moved to April in 2026

Many of you have been wondering: how come our traditional CoCoRaHS Rain Gauge Rally contest isn't going on right now?  Great question! Starting in 2026, the contest will now take place in April.  So this year, you still have time to gear up and think of who you might like to recruit as a new observer in your state.  For more about our upcoming annual contest, please visit our Rally homepage.

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How to Correct a Multi-Day Amount Submitted as a Daily Amount

Situation: you are gone for the weekend, and on Monday morning you need to report your weekend precip accumulation. In an early morning fog you log on to CoCoRaHS, enter your precipitation amount, and click Submit. Gaackk!! You realize you just entered your weekend accumulation as a daily amount. So, you pull up the multi-day accumulation report, enter the dates and your amount, and click Submit. The screen lights up in red text: Errors: This multi-day report would overlap with daily report on DD/MM/2026. Failed to save the Multiple Day Precipitation Accumulation Report. Great.....now what?

As long as you have a valid amount on the conflicting daily report you will get an error. In order to submit the multi-day report, FIRST edit your daily report and set your erroneous daily report amount to NA, then Submit. Now, you can go ahead and enter the multi-day report without generating an error. There is one last step you need to do to make this a clean operation. Send an email to qc@cocorahs.org with your station number and the date of the NA'ed daily report. We will make sure the daily report is removed from the database. If it is not, then your observations will not list correctly when you list your data using the Station Precip Summary or Station Snow Summary.Note that you must set any daily report in the multi-day range to NA before you will be able to submit the Multi-Day Report.