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State 24-Hour Rainfall Records

June 14, 2015

By Paul Homewood 


NOAA set up the State Climate Extremes Committee in 2006. Its duties are to officially pronounce on all time records for each state, for categories including maximum and minimum temperatures, precipitation and other elements.


One of the elements tracked is 24-hour rainfall. We have been told that this is becoming more extreme because of global warming, so are we seeing this impacting on the all-time records?





As I have mentioned before, the more stations you have recording, along with the advent of hourly recording, means that you are far more likely to see records now than in the past. This must certainly be a factor in the relative absence of records pre-war.

Nevertheless, with this proviso, we can see that most records were set in the 1990’s, but that since the turn of the century, the number of records is much lower than any time since the 1950’s. 

All time records don’t tell the whole story, but this picture hardly supports the claims being bandied around that extreme weather is on the increase.

  1. June 14, 2015 10:23 pm

    It seems your research in this posting, together with today’s WUWT posting, indicate that recent climate changes may have bypassed the contiguous United States.

  2. June 15, 2015 8:22 am

    “It’s rained before and it’s raining again,
    But this time its “climate change”.
    Compensation I’ve been promised by President Obama,
    So a claim form I need to arrange.

    Although it has rained many times before,
    I think I can claim “extreme” drops.
    So I must get my form submitted, quick, quick,
    Before this extreme weather stops….


  3. June 15, 2015 1:24 pm

    Hopping a bit off topic…..

    It looks very much like NASA GISS (Gavin’s Crew) are sitting on OCO-2 mapping data. There’s a post at Pierre Gosselin’s place where one of the commenters mentions what was likely a Japanese spectrometer mapper looking at CO2 that appears to have gone MIA too – after producing results similar to OCO-2.

    Some of the things that GISS CO2 models have in common with the satellite observations they’ve got the land in what looks like the right place and the colour palette is similar after that Gavin’s “skillful” models head off piste.

    I suspect this has some mileage / traction esp. what happened to previous CO2 capable space flown spectrometers fwiw.

  4. June 15, 2015 4:24 pm

    I think this kind of thing can be the start of useful analysis. The single point of the national daily record (taken from a shifting set of data points) does say a bit although not too much by itself, but if it turns out that similar patterns or other patterns suggesting that the claims and predictions of the AGW ideology are not supported are present in the data for a set of representative individual sites across the country, then a substantial statement is made. I have been trying to do that with high (32C and more) and record temperatures across Canada. It is taking a while but a pattern is emerging. Eventually, I will get to rainfall as well.

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