The past few days have seen some remarkable differences in high temperature over Iowa. The featured chart presents the daily high temperature correlation coefficient between a handful of sites in the state. A value of one indicates a positive correlation, but not necessarily that their daily high temperatures are equal. A short physical distance comparison is shown for Ames versus Des Moines to compare against the cross-state pairs. In all cases, the lowest correlations are during the summertime as high temperatures are often guided by the effects of clouds and rain from small scale processes. Looking SW to NE or SE to NW over the state does not appear to yield a significant difference in this crude comparison.

Voting:
Good = 24
Bad = 7

Tags:   highs