Maps: California Temperature and Precipitation 2017-2018 Water Year by Western Regional Climate Center | Desert Research Institute Average MAXIMUM temperature departure from average Oct 1, 2017 - Jan 31, 2018Average MINIMUM temperature departure from average Oct 1, 2017 - Jan 31, 2018AVERAGE temperature departure from average Oct 1, 2017 - Jan 31, 2018Precipitation PERCENT of average from Oct 1, 2017 - Jan 31, 2018Precipitation DEPARTURE from average Oct 1, 2017 - Jan 31, 2018 Go to Site