Hilo 50 year Rain Chart

[Cagary]

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Originally posted by TomK

Really interesting, Cagary, thank you! I've just spent a little time myself playing around with Wunderground and unfortunately I think the data for the 60s are incorrect. Not sure if it's Wunderground or the data they are using, but I've found some strange things. For instance, if you look at the data for December 7 1967, a record amount of rain fell that day (just for that day, not an overall record) - 3.72 inches. However, on the very same output, Wunderground says only 1.18 inches fell that day.

I've found other examples of this for many dates in the 1960s so think they have a problem for those years, and they all seem to be under-reading which would explain the lower recorded rainfall amounts in the 60s. For later records (e.g., record rainfalls in the 2000s) the problem doesn't seem to exist.

Tom
http://apacificview.blogspot.com/

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Tom,

I know what you mean by the 60's data being a little messed up. All I could do is work with the data the was on the site. Maybe there's a better source for data.