Intro:

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Daily,monthly plots of the temperature.

• 180516 -> xx temperature sensor not recording properly. (cable drape failure was 180515??)
  

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Yearly summary plots of the temperature.

• Daily minimum, maximum, and median temperatures versus dat are plotted for all of the years available.
• The daily median temperature is plotted versus hour of day for all of the years available.
• The daily min,max temperature are plotted versus hour of day.
• A histogram of the yearly temperatures is plotted for each year. The ordinate is in hours and fraction of total time. Each years histogram was scaled to the full number of hours in a year (some years had some missing data).

When processing the data,  the data set is smoothed to 22 minutes before searching for the minimum or maximum.

• Fig 1 Top. Green: max daily value, red median daily value, black min daily value. The jumps are missing data. The dashed blue lines are the start of each year.
• Fig 1 Middle: The daily median value vs day of year. Color separates the different years
• Fig 1 Bottom: The daily min, max (after smoothing) vs day of year. Color distinguishes the different years. The top traces are the max value while the bottom traces are the min values.
• Fig 2 Top: Histogram or hours spent at each temp for the year. Different colors are different years. The histogram data was not smoothed before computing the histograms.
• Fig 2 Bottom: Histogram of fraction of time spent at each temp by year.

Common yearly temperature properties:

• The daily median temperature varies by 6 degrees over the year.
• 98% of the time the temperature is between 65 and 85 F.
• The daily (Max - Min) temperature is relatively constant throughout the year. The mean value is 11.5 F.
• The histogram of temperature repeats year to year.
• The maximum temperatures for the 4th quarter of each year jumps down. This is probably the rain not letting the temp get as hot as usual

Notes on individual years:

• apr-may07 the temperature sensor was in the painting containment. Inside it got over 100 degrees.
  
• 4th quarter 2004 was especially rainy. The max temps are lower than the other years.
• The 2004 histogram has lost some readings around 72,73 F. I don't know whether this is instrumental or real.
• The start of 2000 was a particularly cold spell where the median daily temp dropped to 64 F.

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