Reynolds Creek, all weather parameters October 1985

Posted: October 22, 2011 by tchannon in climate

Figure 1

[note: someone has pointed out Figure 1 is not particularly legible. This is the result of a bug in the plot software which I had forgotten about, silently changes the resolution for very large plots, sorry, not worth fixing, no trivial solution — tim]

Since the Reynolds Creek data is a wonderful archive of hourly weather data for a location I decided to plot a whole month of hourly data.

The plot is confusing, best I can quickly do. I’ve split the data between the two Y-axis so that the traces are rational. You’ll have to figure out the detail.

I chose October 1985 because it is part of the period used for the previous post and seemed to have a curious feature.

Little did I know.

A web search immediately says that the Oregon area had a record event during Oct 1985 and there we have a grandstand view in the data, even though it is out of state in Idaho.

“Earliest frost: October 8, 1985, 32 degrees (Seneca was 4 degrees!).”

(note: that is talking F, the data is international and C)

Station is at 2097 metres, 6000ft up in the Rockies, Google map which is about 60km south of Boise, about 630km from the Pacific.

wunderground record for Oct 1985 for Boise, probably an airport, has METAR for KBOI

  1. Brian H says:

    Chill happens …

  2. Ray Tomes says:

    OK, there are 7 coloured lines. Any clues as to what they are?

  3. tchannon says:

    All I know is what is written in the data file header.


    Air temperature (°C),
    Relative humidity (decimal %), I have x100 on this, 50 is 50%
    Vapor pressure (Pa),
    Dewpoint temperature (°C),
    Solar radiation (W m^-2),
    Wind run @2m (m s^-1),
    Wind direction @2m (degrees from N).

    No barometric pressure. Could be deduced from other data files.