SOURCE:
The Worst US July Heatwaves | Real Climate Science
During July 1936 four states were over 120F, twenty-three states were over 110F, forty-three states were over 100F and every state was over 90F.
CA 121, ND 121, OK 120, SD 120
AZ 119, KS 118, MO 118, NE 118, IA 117, AR 114, IL 114, IN 114, TX 114, KY 113, MT 113, WI 113, CO 112, ID 112, WV 112, MN 111, UT 111, OH 110, WY 110
MI 109, NV 109, VA 109, NM 108, AL 107, OR 107, PA 107, WA 107, MD 106, MS 106, NJ 106, NY 106, NC 106, DE 105, GA 105, SC 105, LA 104, TN 104, FL 103, CT 100
NH 99, MA 98, VT 97, ME 92, RI 90
During July 1954 Kansas was over 120F, twelve states were over 110F, thirty-nine states were over 100F and forty-six states over 90F.
KS 120
CA 119, AZ 117, OK 117, MO 116, NE 116, AR 115, IL 115, TX 114, CO 112, SD 111, NV 110
UT 109, IN 108, LA 108, MT 108, GA 107, KY 107, NM 107, ND 107, TN 107, IA 106, MS 106, NC 106, WY 106, OH 105, OR 105, SC 105, VA 105, NJ 104, AL 103, DE 103, ID 103, MD 103, NY 103, WV 103, PA 102, FL 101, MN 100
WA 98, WI 98, CT 96, MA 96, MI 96, RI 94, NH 92
During July 1980 California was over 120F, nine states were over 110F, forty-three states were over 100F and every state was over 90F.
CA 124
AZ 118, OK 117, KS 114, MO 112, TX 112, AR 111, NE 111, NV 110
CO 109, MT 109, SC 109, SD 109, IL 108, MS 108, UT 108, AL 107, GA 107, ID 107, KY 107, FL 106, IA 106, LA 106, NM 106, ND 106, TN 106, WY 106, IN 105, OR 105, NY 104, WA 104, MN 103, NJ 103, NC 103, DE 102, VA 102, WI 102, MD 101, OH 101, PA 101, MA 100, RI 100, WV 100
CT 99, MI 96, ME 94, NH 94, VT 92,
During July 1934 California and Arizona were over 120F, twenty-four states were over 110F, forty-one states were over 100F and every state was over 90F.
CA 122, AZ 120
KS 118, NE 118, ID 117, MO 116, NM 116, SD 116, OK 115, IL 114, MN 113, TX 113, CO 112, IN 112, IA 112, NV 112, ND 112, UT 112, AR 111, OH 111, KY 110, MS 110, OR 110, WA 110
MT 109, TN 109, LA 108, MI 108, WV 107, WI 107, WY 106, GA 105, PA 105, SC 105, VA 105, AL 102, NY 102, NC 102, DE 101, MD 101, NJ 100
FL 98, CT 97, MA 96, NH 95, VT 95, ME 94, RI 90
During July 1930 seventeen states were over 110F, forty-two states were over 100F and forty-seven states were over 90F.
AZ 117, CA 116, AR 115, KY 114, MS 114, IN 113, MO 113, IL 112, NE 112, SD 112, KS 111, LA 111, OK 111, IA 110, NM 110, TN 110, TX 110
AL 109, GA 109, OH 109, VA 109, ID 108, MN 108, MT 108, SC 108, ND 107, UT 107, MD 106, WA 106, WV 106, WY 106, DE 105, MI 105, NC 105, CO 104, OR 104, PA 104, WI 104, FL 103, NV 103, NY 103, NJ 102
CT 99, MA 95, NH 95, ME 91, VT 90
During July 1901 fourteen states were over 110F, forty-two states were over 100F and every state was over 90F.
AZ 117, MO 116, OK 113, AR 112, IL 112, IN 112, UT 112, KS 111, WI 111, IA 110, MT 110, NE 110, TN 110, TX 110
CA 109, KY 109, LA 109, MS 109, SD 109, CO 108, ND 108, MN 107, NJ 107, PA 107, ID 106, AL 105, DE 105, FL 105, MD 105, OH 105, WY 105, GA 104, NV 104, NC 104, WA 104, MI 103, NY 103, NM 102, SC 102, VA 102, ME 101, WV 100
NH 98, OR 98, MA 97, VT 97, CT 95, RI 93
The Washington Post knows about the 1930 heatwave. Unfortunately their editorial board doesn’t seem to read their own newspaper.