If you read my blog, “Green Thumb?  Maybe…Maybe Not!” you know that I described on a personal level, as well as a regional and national level, how hot it was this summer and how the heat affected my garden and anybody else that took the time to put seeds in the soil.  Well how hot was it really?  Here’s a breakdown from the month of May thru August (courtesy of the National Weather Service)…


Despite a near normal month of April, we experienced the third warmest month of May in the history of weather record keeping.  The average spring temperature (March, April, May) was 55.2, which was a full two degrees warmer than the previous record of 53.1.  May was characterized by persistent warm temperatures along with episodes of record or near record temperatures.  Only three days in the entire month (the 10th, 17th and the 31st) featured below normal temperatures, as the remaining 28 days saw daily average temperatures rise to at least 10 degrees above normal on 10 occasions, including 2 days of 90 degrees.  Those two 90 degree days happened a month early than the average date (June 19th) for Detroit’s first 90 degree temperatures.  The highest temperature for the month was registered on May 28th at 95 degrees.  The average temperature for the entire month was 65.3 degrees.  The normal average was 59.7, so May 2012 was 5.6 degrees higher than the norm, tying it with May 1896 for the third warmest May in history.

# Days 70+ Degrees          # Days 80+ Degrees          # Days 90+ Degrees

13                                            8                                              2

Rain/Precipitation: 1.72 inches


June started with unseasonably low temperatures.  May 31st the temperature was a lowly 65 degrees and June 1st followed at only 62 degrees.  After recording 13 straight months of above normal temperatures, it did seem like a change might be in the air to start the season.  I took advantage of the cooler weather to aggressively put seeds and plants in the ground.  After June 1st we had only one other day (June 5th) that was below 70 degrees (6/5 was 69 degrees) as the hovered in the 80’s and 90’s most of the month.  In fact, there were only 6 days in the 70’s (6/2: 75; 6/4: 72; 6/6: 79; 6/11: 77; 6/13: 74; 6/25: 76).  This was the first real sign of the drought-like conditions that was to affect the entire Midwest and other parts of the country.

The first 90-degree temperature of June and the third of the year occurred on June 9th and by the time the month ended; we hit 90 degrees 8 more times.  This meant that in two months (May and June) we had already hit 90+ degrees eleven times which is amazing since Detroit only averages eleven 90+ degree days a year.  With June being as warm as it was it resulted in an average temperature of 50.3 degrees for the first six months (Jan.1 thru June 30) of the year also…another record.  The previous record for the first six months of the year was 1998, the “Super Nino” year, with 49.1.  As I have pointed out in previous posts, the warm weather had to have an affect on the crops.  Consecutive hot days and warm nights probably impacted on the growth cycle of the plants.    The average low was only 60.6 with 13 days above the 60-degree mark.  The hottest day of the month was June 28th when it hit 99 degrees.

# Days 70+ Degrees         # Days 80+ Degrees           # Days 90+ Degrees

6                                              13                                            9

Rain/Precipitation: 1.31 inches


If anybody thought that June was hot (and it was), July was hotter and I do mean HOTTER!  July, the warmest month on record nationally, was the second warmest month ever recorded in Detroit.  The average temperature of 79.0 fell just –0.3 degrees short of the all-time hottest month, which occurred exactly one year ago (July 2011).  The heat also prolonged the streak of warmer-than-normal months for Detroit to 15, dating back to May 2011.  In similar fashion to last summer, extreme heat quickly built across the southern plains and Midwest early in the warm season.  However, very dry conditions allowed the heat to expand northward much more aggressively than in the year prior.  The result was prolonged near-record or record heat across all of southeast Michigan that lasted not only through June, but July as well.  By the end of the month, record heat and dry air had resulted widespread severe drought conditions across southeast Michigan.  Because thunderstorms are relatively inefficient at alleviating drought conditions, the multiple episodes of extreme weather that occurred did little to ease drought concerns.  But the storms did do some damage…

Taken July 5, 2012 by Jenni Littsey

These pictures were taken on July 5th after a major thunderstorm hit my mother’s neighborhood.  Fortunately, nobody was hurt!

The extreme heat resulted in the high temperature reaching 90 degrees or higher on 13 days in July, raising the total for 2012 to 24 days for the year at that point.  More than doubling the annual average of 11.  At that pace it was possible to beat the all-time record of 39 90+ days, which was set in 1988.  Additionally, the 100 degree threshold was crossed 3 times (July 4th, 7th and 17th), marking only the 3rd time in Detroit’s historical record that 100 degrees has been reached more than 3 times in a calendar year.  The hottest days were July 4th and the 17th when the temperature hit 102 degrees.  The record warm start to the year was also prolonged through July.  The average temperature of 54.5 degrees exceeded the previous record of 52.9 (Jan. thru July 1921) by 1.6 degrees.  Overall the average temperature for the month was 89.6 degrees or +6.2 degrees above the 83.4 degree monthly normal, and the second warmest month on record.

# Days 70+ Degrees                # Days 80+ Degrees       # Days 90+ Degrees

1 (July 19th)                              17                                            13*

*Includes 3 100+ degree days

Rain/Precipitation: 3.67 inches

The extremely dry weather conditions left me wondering how the neighborhood wildlife survived during these times.  It had to be pretty hard for the birds, as they need plenty of water.  That probably explains why I didn’t see as many as usual except for the days after a big rain.  I watered the plants in my garden by hand so as to not waste any and as a result there was absolutely no standing water anywhere.  The squirrels, however, probably got through it all by eating more vegetation (leaves, etc.).  One would think that my garden, which was full of succulent plants and all, would be an ideal target, but I strategically placed inflatable snakes in the garden and that has kept them at bay, even now.  The weather probably affected the amount of babies the squirrels had (giving birth in July) so there weren’t as many needy mouths to fill.  Still, when I look up at the trees, they don’t have as many leaves on them as usual.  C`est la vie!


What can I say about the month of August?  One thing we do know is that it was still hot…very, very hot!  August continued the record-setting trend of higher than normal temperatures (average temperature 83.4, which was +2 degrees over the norm, 81.4) for 16 consecutive months.  The higher than average temperatures in August also extended the record high temperature average from January thru August.  I am totally convinced now that there is such a thing as global warming (as if there was any doubt).

August started out with 8 straight days of 80+ degree weather, picking up where July left off (12 consecutive days of 80+ degree weather).  The average temperature for those 8 days was a whopping 89.2 degrees.  There were 6 more days that were 90+ degrees increasing the total for the year to 30 days.  The hottest day was Aug. 31st when the temperature hit 95 degrees and the coolest day of the month was Aug. 11th when the thermometer registered only 71 degrees.  For the first time since June (69 degrees on June 5th) we had temperatures below 74 degrees.  So that means we had 64 days in row where the temperature got no lower than 74 degrees, during which time the average temperature was 88.3 degrees.  Now that’s HOT!  The 4-month average (May – August) was 83.3 degrees, 5 whole degrees difference.  It’s no surprise that no matter whom I spoke to, people’s gardens suffered quite a bit.  With the scant amount of rain we got through that stretch (4.9 inches =  .07 per day or just slightly more than ½ inch per week), the problems I had with watering (just enough or too much) now appear to be understandable (Green Thumb?  Maybe…Maybe Not!).  But, what I still don’t get is how well the community garden at Nolan Elementary-Middle School did.  Planted where it got full sun for the entire day and subject to the non-focused watering technique of young girls and boys (some times they missed entire rows of plants) AND to also have to deal with a limited supply of water, the garden did more than just survive…it THRIVED!  Plus, it had to go through hurricane like damage from vandals.  Am I jealous?  You bet I am…lol!  You can’t beat results and Nolan’s Fierce Gardeners ultimately had a fantastic year. Look for their upcoming success story on their blog, “Planting The Seeds.”

# Days 70+ Degrees         # Days 80+ Degrees            # Days 90+ Degrees

9                                              16                                            6

Rain/Precipitation: 2.25 inches

Is This The End?

Is this the end?  Well, we will just have to wait and see.  So far this the temps have stayed pretty consistent with the rest of the summer: Sept. 1 = 84; Sept. 2 = 81; Sept. 3 = 89; Sept. 4 = 81; Sept. 5 = 89; Sept. 6 = 86; Sept. 7 = 79.

Last year (2011) the month started out strong too: Sept. 1 = 92; Sept. 2 = 98; Sept. 3 = 95; Sept. 4 = 78; Sept. 5 = 64; Sept. 6 = 67; Sept. 7 = 63

But once the temperature dropped on Sept. 5th it mainly stayed that way for the rest of the month and for the remainder of the year.  The warmest day was Sept. 12 when it hit 84.  The coldest day was the last day of the month, Sept. 30 when it dropped to 55 degrees.  There were 16 days when it was 70 degrees or below.  The average temperature for the entire month was 72.5, which actually isn’t all that bad.  But, that would be considered to be a “spring-like month” compared to the temperatures we have experienced this year.

Do we have anymore 90+ degree weather on the horizon and will we break the aforementioned record of 39 days, set in 1988?  Only time will tell.  One thing is for sure, this was one helluva summer…definitely one for the books!