Helwig Center Weather (Past Week/Month/Year)

About

The graphs on this page may be unclear on a PC. This appears to be the result of the image shrinking I've done in order to fit two images side-by-side. In Firefox on a Mac, this page will look fine. If you are not using that browser and would like to see a more legible version of the image, try right-clicking on the image and selecting "View Image." On Firefox, that gives you the original full-sized image. Buttons for access to the archives that generate the graphs below is available here (scroll down to the middle of the page).

Data frequency: Sub-hour archive records prior to 21 August 2009 are provided in 5-minute intervals. Beginning with 21 August 2009, sub-hour archive records are provided at 30-minute intervals.

Text and image presentations of data: You may see a mismatch between text and image presentations of the data (where both are available). If so, this is probably because your browser is using a cached version of the images. Pressing refresh should fix the problem.

Cumulative reports and archives: Because of some incorrect data (described below), cumulative values in both the reports and archives may be incorrect. This includes:

• Reports for 2009: There is no data prior to August, due to problems with the data processing server.
• Reports for 2012 and 2013: There is no data from approximately October 2012 to February 2013, due to problems with the data processing server.

Bad data: While the list below is not exhaustive, data during the following periods, and all statistics calculating using that data, are known to be incorrect (local time in yyyy-mm-dd hh:mm format):

• All data prior to 2007-08-02 13:00: Station testing.
• 2009-05-27 00:10 to 2009-05-27 08:50: Bad archive files.
• 2009-06-16 21:25 to 2009-06-17 08:20: Bad archive files.
• 2009-06-21 04:00 to 2009-06-21 16:50: Bad archive files.
• 2009-06-21 16:00 to 2009-06-21 16:55: Bad archive files.
• 2009-07-20 01:50 to 2009-07-20 02:40: Bad archive files.
• 2009-08-19 19:00 to 2009-08-27 18:36: Problems with the data processing server.
• 2010-10-27 to 2010-12-06: The main unit battery was dying, and so there are large periods spread throughout which are filled with bad data.
• 2011-05 to 2012-04: The repeater transmitter battery was dying and the temperature and humidity sensors were failing, and so there are large periods spread throughout which are filled with bad data.
• 2012-05 to 2012-06-14: Replacement station was undergoing testing, and so all data are indoor values.
• 2012-10-24 13:31 to 2013-02-16 10:00: Problems with the computer that is processing the weather station's data.
• 2013-04-18 14:30 to 2013-04-19 10:30: Loss of signal.
• 2013-08-05 10:30 to 2013-08-09 10:00: Power outage and console down.

Station changes that affect the archives: The first station operated until 14 June 2012. A replacement station was installed 14 June 2012. All yearly cumulative data for 2012 are incorrect because of the station change and the purge of a few months of 2012 data from the first station. Both the first and second stations are the same make and model.

Past Week

Past Month

Past Year

Updated: Wednesday, 14-Apr-2021 06:20:10 PDT. Disclaimer. Valid CSS, HTML. Author: Johnny Lin, with portions generated by the program wview (written by Mark Teel and co-authors). The weather graphics on this page are licensed under the GNU General Public License.