Summer months...June/July/Aug... Three month period from 6/1 - 8/31 decade...ave temp/precip...90+days100+ 1870's.....73.2.....13.75".....101.....0..... 1880's.....72.4.....11.88".......81.....1..... 1890's.....73.3.....11.18".....138.....1..... 1900's.....73.3.....12.87".....101.....2..... 1910's.....72.7.....11.58".....115.....3..... 1920's.....72.6.....12.98".....128.....2..... 1930's.....74.6.....12.40".....189.....8..... 1940's.....74.2.....11.86".....202.....8..... 1950's.....74