A History of 100 Degrees in the Twin Cities

For the second time in a week, the mercury hit 100 degrees or higher at the Twin Cities International Airport. The last time there were two 100 degree maximum temperatures in the Twin Cities was 1988, when there were four.

July 1-6, 2012 will also finish the warmest first six days of July on record in the Twin Cities with a preliminary average of 87 degrees F, higher than the next closest average (July 1-6 1949) with 84.2 degrees F.

It's been relatively uncommon to see the mercury reach 100 at the Twin Cities International Airport in recent years. Before 2011, the last time the maximum temperature was 100 degrees or more was on July 31, 2006 when the air temperature reached was 101 degrees. Looking back to 1873, the maximum temperature at the Twin Cities official measuring site has reached 100 or more on 64 occasions. The most was in 1936 with nine days. The last year with more than one 100 degree temperature was in 1988 with four.

Below is a table of all the dates since 1873 of days where the temperature was 100 or more at the offical Twin Cities observing site.

Year	Month	Day	Precip	High	Low	Average 
1883	7	1	0	100	72	86
1894	7	11	0	100	71	86
1894	7	26	0	100	75	88
1901	7	20	0	102	76	89
1901	7	23	0	101	74	88
1901	7	24	0	101	67	84
1913	8	15	0	100	74	87
1926	7	16	0	102	68	85
1931	6	28	0	102	82	92
1931	6	29	0	102	83	93
1931	6	30	0	100	82	91
1931	7	15	0	101	77	89
1931	7	16	0	100	80	90
1931	7	27	0	104	80	92
1931	9	10	0	104	75	90
1932	7	20	0.02	101	74	88
1933	6	19	0	100	75	88
1933	7	30	0	100	78	89
1934	5	31	0	106	75	91
1934	6	27	0	104	70	87
1934	7	21	0	105	73	89
1934	7	22	0	105	71	88
1934	7	23	0	105	80	93
1936	7	6	0	104	69	87
1936	7	7	0	101	80	91
1936	7	8	0	101	82	92
1936	7	10	0	106	80	93
1936	7	11	0	106	82	94
1936	7	12	0	106	83	95
1936	7	13	0	105	86	96
1936	7	14	0.04	108	72	90
1936	8	15	0.44	103	70	87
1937	7	10	0	100	76	88
1940	7	18	0	101	68	85
1940	7	19	0.02	100	76	88
1940	7	22	0	103	74	89
1940	7	23	0	103	75	89
1941	7	23	0	100	74	87
1941	7	24	0	104	76	90
1947	8	4	0	102	76	89
1947	8	5	0	100	78	89
1947	8	10	0	101	75	88
1947	8	17	0.28	100	72	86
1948	7	6	0	101	75	88
1949	7	3	0	100	79	90
1949	7	4	0	100	75	88
1955	7	26	0.08	100	73	87
1955	7	28	0	100	72	86
1956	6	13	0	100	77	89
1974	7	8	0	101	73	87
1976	7	13	0	100	69	85
1977	7	19	0	100	79	90
1980	7	11	0.3	100	72	86
1982	7	5	0	100	78	89
1985	6	8	0	102	64	83
1988	6	24	0	101	70	86
1988	7	15	0.06	102	79	91
1988	7	31	0	105	72	89
1988	8	1	0	101	74	88
1990	7	3	0	100	72	86
1995	7	13	0	101	75	88
2006	7	31	0.09	101	80	91 
2011	6	7	0	103	78	91
2012	7	4	0	101	81	91
2012    7	6	0	102	78	84