It starts in Brownsville, Tx.[1]
In January 2016, There were 2 days in Brownsville where the high was 70, the 13th and 28th.
Even if you say +/- 5 degrees is 'close enough' to 70, less than 1/2 the days in January 2016 fall into that range.
From the 3rd to the 4th, the high temperature jumped 15 degrees from 51 to 66.
On the 2nd, the high was 45 degrees. The 15th, the high was 83 degrees. That's a 38 degree high temperature spread in one month.
So if you really do need 70, spot-on to be happy, you may need to add standard deviation to your criteria.
Here's the chart:
[1] http://www.accuweather.com/en/us/brownsville-tx/78520/januar...
It starts in Brownsville, Tx.[1]
In January 2016, There were 2 days in Brownsville where the high was 70, the 13th and 28th.
Even if you say +/- 5 degrees is 'close enough' to 70, less than 1/2 the days in January 2016 fall into that range.
From the 3rd to the 4th, the high temperature jumped 15 degrees from 51 to 66.
On the 2nd, the high was 45 degrees. The 15th, the high was 83 degrees. That's a 38 degree high temperature spread in one month.
So if you really do need 70, spot-on to be happy, you may need to add standard deviation to your criteria.
Here's the chart:
[1] http://www.accuweather.com/en/us/brownsville-tx/78520/januar...