Hottest June Day Ever

It’s official… for only the fourth time in June history, the temperature at PDX hit 100 degrees today.  To make the day even more special, the high temperature of 101 degrees at 2:37 p.m. was the highest June temperature ever recorded at PDX.

In several of the comments following my previous post, many of you are wondering how the temperature reached 101 when the highest hourly report was 97 (at 2pm and 3pm)?  Well, during the hour between 2 and 3pm, the wind at the airport died down.  That allowed the temperature to jump to 101 at 2:37pm during the calm conditions… but by the 3pm report, the wind had picked up again, dropping the temperature back to 97.

Discussion of the wind leads me to my next issue — the forecast high for tomorrow.  The "thermal trough" (the axis of warmest air) will be right over the Valley tomorrow… and as a result, the wind will be significantly slower.  And with 850 mb (5,000 ft) temperatures projected to be a degree or two higher tomorrow, I think 102 is a good number to forecast for Portland.  I’ve had 102 on my 7 day forecast for Monday for a couple days now… and see no reason to change it.

Stronger onshore flow develops Monday night and Tuesday, resulting in a cooler afternoon Tuesday… and the rest of the week looks mostly sunny and warmer than average with highs between 80 and 85.

Stay cool…

– Drew J

125 Responses to Hottest June Day Ever

  1. Dmitri K says:

    Yeah Derek I thought the same thing when I heard that – why even mention it? I guarantee you there will be rumors now that Mulino hit 118 in 2006 for years to come, with people saying “I heard it on the news, its true, really” because some idiot stuck his thermometer in the sun.

  2. Derek Hodges says:

    maybe he is on something..its not really nice to say that but I won’t believe it was 118 anywhere near hear.

  3. Justin says:


  4. Justin says:

    Agreed, why would you even bother to mention something so silly? Its practically making a mockery of the boradcast.

  5. Droppin says:

    MAYBE 105? but c’mon all of these callers calling in their “reports” as you said are DENSE Lol.

  6. Droppin says:

    Dmitri, did you hear him mention the 118 from Mulino? He said that on air. I was sitting here saying to myself, “Why would Matt Zaffino mention something so inaccurate?” Lol

  7. alex says:

    from 7am to 5:40pm,about 32 degree warm up

  8. Justin says:

    Well that figures it then Dmitri. A lot of ‘callers’ are probably pretty dense when it comes to setting up thermometers and if they do it inproperly they could easily get as inaccurate a reading as possible. Take today, the wunderground site at mt. Tabor recorded something like 114. I didn’t doubt its authenticity, I’m sure it did record that, but it was probably perched at the top of a roof in the middle of a clearing where there’s absolutely no shade. I agree with Droppin, probably 104 at warmest there in actuality.

  9. alex says:


  10. Justin says:

    Does seem a bit strange. I wonder where they recorded it, as far as I know Milwaukie has no official recording station and it seems weird that somewhere just south of Portland was so hot. Downtown 101 and Milwaukie 108? Anyways, I noticed that Drew bumped tomorrow’s high down 5 degrees to 87, perhaps he thinks the onshore flow will be here sooner than originally anticipated.

  11. Dmitri K says:

    Yeah its hard to believe. He had them written on the screen but mentioned that the reports were from people calling in. You would think that Matt trusts their accuracy enough to post the numbers on the news like that, but who knows.

  12. Droppin says:

    I don’t really believe that Milwaukie could of possibly been 108, or 106 in Tigard. I could believe 104, but nothing higher.

  13. Dmitri K says:

    Also 102 in Hillsboro was a June record, and 103 at the NWS office in NE Portland. Also Oregon City, we at least tied the June record of 102 officially. Not sure if we hit 103 though.

  14. Justin says:

    Funny, we get down to 58 at 250-300ft and downtown’s low is 71.

  15. Dmitri K says:

    *ever, not every

  16. Dmitri K says:

    Well, good old downtown Portland had a June record warm low of 71, and with a high of 101 had its warmest June day in every – 135 years – by average temperature.

  17. Justin says:

    108 in Milwaukie, nice. About as warm as they ever get. Seems the heat wave lived up to the hype down south, but in areas around and north of the river it could’ve been worse.

  18. Justin says:

    I don’t think the clouds are anything but marine influenced CU crap. Fact is we don’t get too many thunderstorms at 20% humidity.
    Anyways, high I THINK was 100 in Vancouver, nowhere near the June record here. Anyone know of any othe rmnothly records that were broken?

  19. Dmitri K says:

    Did any of you guys catch some of the numbers Matt Zaffino reported?
    108 in Milwaukie
    106 in Tigard
    104 in Camas

  20. Dmitri K says:

    102 in PDX – new June record high.

  21. hanson says:

    sorry northeast

  22. hanson says:

    you guys there are cumulus forming just northwest in tha cascades of longview.

  23. hanson says:

    you guys there are cumulus forming just northwest in tha cascades of longview.

  24. cliff says:

    What’s all this talk about global warming, anyway?

  25. Andrew says:

    my house officially it 103 degrees, but just 2 miles away in beaverton it was about 105 is areas wide open to the sun.

  26. Camas Mom says:

    I’m not sure we hit 100 today either, but we are up pretty high I suppose that might have something to do with it.

  27. Justin says:

    Whoa, just looked outside again and we have a pretty good breeze down now. Probably have had a few gusts over 25mph, good to see. I btw never officially topped 100.0 but I gues sin technical terms my high would have been 100 if I were to round upwards.

  28. Dmitri K says:

    BTW wind here is steady 15-20 mph.

  29. Dmitri K says:

    I can’t believe the wind did us in like that. We could have easily hit 104 today, instead the wind has been 12-14 mph all afternoon.

  30. Dmitri K says:

    Now down to 101.7 here, declining for over an hour.

  31. Justin says:

    Why so quiet?

  32. Camas Mom says:

    Well, I just checked my el cheapo clock that has a temp on it which is reading 98 or so, but I have no idea as to its accuracy.

  33. Justin says:

    Hey Camas Mom, looks like I’m leveling off and just go to about 99.5, but I’ll cheat and consider that a high of 99.

  34. Camas Mom says:

    Hi all! Good to see my winter buddies here on hot days, too! It’s scorching here, but I don’t know how hot exactly. I’m so glad to see the summer is finally here after all the rain we had this spring – UGH! Stay cool everyone, and only about 4 more months until snow on Livingston Mountain….tee hee. 🙂 Until then I’m going to enjoy my garden.

  35. Droppin says:

    Hmmmm I see some CU way off to my south. Anyone else seeing any?

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