Chances are that rain will fall during one of the days of the three-day Memorial Day weekend, with Memorial Day (Monday) being the day most likely to receive significant rain; however, one-third of the weekends have been completely rain-free. Highs of 85 degrees or warmer during the holiday weekend have been concentrated in five years: 1981, 1985, 1988, 1991 and 1999. Conversely, Memorial Day weekend 2003 was the dreariest and coolest as the afternoon temperature got no higher than the mid-50's.
- 1980 (May 24-26) - After a hot Friday (high of 90) the weekend gradually cooled down, but temperatures were still warmer than average: 86-84-76.
- 1981 (May 23-25) - Sunny and summery all three days with highs of 78-86-87.
1984 (May 26-28) - For the second year in a row more than an inch of rain fell on Memorial Day (Monday). Last year it fell in the early morning and evening. This year it fell in the afternoon.
- 1987 (May 23-25) - Memorial Day was very cool, with a high of just 63, eleven degrees cooler than average. The holiday came one week too early as the following weekend had temperatures in the 90's.
1991 (May 25-27) - Highs of 93-81-89 made this the second warmest Memorial Day weekend of the 1979-2011 period, eleven degrees above average. At 93 degrees, Saturday's afternoon high was the hottest day of any Memorial Day weekend in the 1979-2011 period. And Monday's high of 89 made it the hottest Memorial Day since 1969. Finally, an inch of rain fell Monday night between 10PM and 2AM, the first rain in two weeks.
- 1992 (May 23-25) - A real Jekyl & Hyde weekend. Saturday had mid-summer conditions with a high of 92. Then Sunday was the transition day as a strong cold front pushed through in early afternoon and temperatures plummeted from the low 80's to 45 by midnight. Monday felt more like October with overcast skies and a high of just 61 degrees. The AM low of 44 was the second chilliest reading on Memorial Day (only 1880 was colder, at 42 degrees). In the course of the weekend highs went from 19 above average to 13 below average.
1999 (May 29-31) - One of the all-time great holiday weekends, and the warmest (just passing 1991). Each day had a high in the upper 80's under clear skies and with low humidity. Monday's high of 89 tied 1991 for the warmest Memorial Day of the 1979-2011 period.
- 2001 (May 26-28) - For the first time since 1990 rain fell on Saturday of the holiday weekend. And although very little rain fell, this year's holiday is distinguished as being the only one of the 1979-2011 period to report rain on each day: 0.06" on Saturday, 0.08" on Sunday and 0.05" on Monday.
2003 (May 24-26) - Quite a dismal weekend, the coolest in the 1979-2011 period and the second rainiest Memorial Day ever (1.28"). All three days had gray skies and cool temperatures, ten degrees below average. The high on Monday was just 56 degrees, eighteen degrees below average, the chilliest Memorial Day in more than 30 years.
- 2006 (May 27-29) - For the first time in seven years the temperature on Memorial Day was in the 80's.
- 2010 (May 29-31) - This was the third year in a row in which no rain fell throughout the three-day weekend. High temperatures rose each day: 77 on Saturday; 84 on Sunday; 86 on Monday.
2011 (May 28-30) - For the sixth year in a row Memorial Day weekend was a warm one. It was also the sixth year in a row in which the high on Memorial Day rose into the 80's. The average high during these six years was 84, ten degrees above average.
- 2012 (May 26-28) - For the seventh consecutive year Memorial Day had a high in the in the 80's. The high of 89 tied that of 1999 and 1991 for the warmest reading on Memorial Day since 1969's 91 degrees. The entire weekend was eleven degrees warmer than average. Memorial Day also had the year's first 70-degree low, one week earlier than average and the earliest since 2007 (when it occurred on May 26).