| Date of New Record 2012 |
Record High Temperature |
Previous Record High Temperature |
Record Highest Minimum Temp. |
Previous Record Highest Minimum Temp. |
| JAN. 31st | N/A | N/A | 50° | 48° (1988) |
| FEB. 29th | N/A | N/A | 45° | 44° (1976) |
| MAR 14th | 81° | 79° (1990) |
N/A | N/A |
| MAR 15th | 80° | 77° (1977) |
N/A | N/A |
| MAR 17th | 77° | 76° (1894) |
N/A | N/A |
| MAR. 18th | 80° | 76° (1903) |
60° TIED |
60° (1874) |
| MAR. 19th | 82° | 78° (1921) |
64° | 60° (1903) |
| MAR. 20th | 83° | 80° (1894) |
63° | 62° (1921) |
| MAR. 21st | 84° | 82° (2007) |
62° | 58° (2011) |
| APR. 3rd | 84° | 83° (1946) |
N/A | N/A |
| JUN 28th | 104° | 101° (1934) |
N/A | N/A |
| JUN 29th | 103° | 100° (1934) |
N/A | N/A |
| JUN 30th | 97° TIED |
97° (1933) |
N/A | N/A |
| July 5th | 103° | 99° (1936) |
N/A | N/A |
| July 6th | 105° | 99° (1988) |
N/A | N/A |
| July 7th | 105° | 101° (1936) |
N/A | N/A |
| SUN | MON | TUES | WED | THURS | FRI | SAT | |
|---|---|---|---|---|---|---|---|
| High Temp | 95 | 98 | 98 | 102 | 103 | 105 | 105 |
| Low Temp | 74 | 70 | 72 | 75 | 75 | 77 | 81 |
| Precip | TRACE | NONE | NONE | NONE | NONE | NONE | NONE | Peak Wind Gust (MPH) | 37 | 18 | 22 | 21 | 23 | 20 | 23 |
Last week the hottest temperatures of the year occured on Friday & Saturday at 105°. This was 1° shy from tying the high all time hottest temperature ever in Indianapolis since atleast 1871 when record keeping began, of 106°. Its possible that we may have hit 107° prior to to 1871 but we have no way in determining that at all. We recorded a Trace of precipitation on the 1st and the 9th but once again we are repeating a trend from last month. June ended as the driest June on record with 0.09". Could Indianapolis Finish as the Driest July on Record?
The current record stands at 0.47" which was actually set last year beating out 0.49" in 1914. Its too early to tell, things can change. I'd also like to note our low temperature of 81° (not a record) for Saturday Morning was the warmest low Indy has seen in this 21st century.
Since the soils are so dry and the sun is shining so brightly 100%, this puts all the solar energy towards heating. This is what helped give some of the hottest temperatures the state has seen in over two decades, last week. And whats continuing to keep temps up this week. We topped 96° Sunday, and 93° for yesterday and today. Originally, we were expecing temps to fall here into the mid to upper 80s but obviously didn't work out. The 90s will continue to roll on into Wednesday and Thursday before we finally make it back to the 80s starting Friday heading into next week.
Drought Analysis
Much needed rainfall hit Southern Portions of the State over the past weekend with totals between 2"-4". Some showers also fell North as well but unfortunately Indianapolis was left with nothing but maybe a few small raindrops for Sunday, just ridiculous. Indianapolis International Airport records a Trace for July 8th which isn't measurable rainfall. We've yet to record measurable rain this month.
Following Breakdown and Drought Map is Current until CPC releases their weekly analysis on Thursday.
| This Week |
Last Week |
Difference | |
|---|---|---|---|
| Abnormally Dry |
100% | 99.86% | +0.14% |
| Moderate Drought |
89.02% | 87.03% | +2.01% |
| Severe Drought |
68.84% | 68.58% | +0.26% |
| Extreme Drought |
23.46% | 23.46% | UNCHANGED |
Rainfall Deficit Around the State
| Location | Year to Date Precipitation (through July 10) | Departure from Average | Precip since June 1 | Difference from Average |
| Indianapolis | 15.15 | - 8.07 | 0.09 | -5.73 |
| Lafayette | 11.57** | - 7.93 | 0.82 | -4.66 |
| Muncie | 13.92 | - 7.73 | 1.68 | -4.40 |
| Terre Haute | 12.56** | -11.66 | 0.26 | -5.52 |
| Bloomington | 12.68** | -13.72 | 0.93 | -5.58 |
| Shelbyville | 13.10 | - 10.48 | 0.05 | -5.75 |
| Indy - Eagle Creek | 13.36 | - 9.29 | 0.22 | -5.62 |
Math Fun
There's a long drawn out equation to figure out Heat Index Values but I don't think you would want to take the time to compute it all out. Instead here's a simple link courtesy of the National Weather Service.
http://www.hpc.ncep.noaa.gov/html/heatindex.shtml
Let's take Saturday for example, the temperatures outside at 5pm was 105°. The dew point read 63°. So what was the heat index value? If you'd like to input it, do so before reading any further.
ANSWER: You'll find the temperature outside felt like 108°. Since heat index values were expected to be above 105°, the National Weather Service had excessive heat warning in effect. These were dangerous conditions that led to over 60 deaths over the past few weeks in North America.
Well a Negative North Atlantic Oscillation and Positive PNA (Pacific/North American) are bringing changes across the country. The heat has gone to the west and we're looking at more of a progressive weather pattern to the East that'll bring storms under a humid air mass.
As a stationary boundary hangs out South for now, that continues to keeps us dry with High Pressure overhead in the the Great Lakes/Michigan Region. As this breaks later in the week, we'll begin to get some moisture added to the states atmosphere which could finally lead to some wet precipiitation for our area.
I'm remaining optimistic as models are in agreement with rainfall arriving late Thursday evening lingering throughout the weekend into Monday. If this holds out to be true we could finally be looking at rainfall that could finish with totals around an inch to possibly 2" in some spots in Central Indiana. CAPE values could be above 1500 J/KGs which could allow for some strong thunderstorm activity with good lift and moisture supply, as well. Wouldn't rule out pockets of 2-3" in the state. Saturday looks to be the wettest offering up a half an inch of rain for the day This is something I'll continue to watch.
With increased cloud cover for the upcoming weekend I would expect temps to fall back into the mid 80s if not upper 80s at more seasonal values which is more normal for the month of July. Overnight lows should continue to be in the mid to upper 60s.
Looking ahead the heat will take a vacation atleast for next week. It could return to finish the month. Temps look to be fairly normal to slightly above normal for the next 2 weeks. With temps in the upper 80s, low 90s next week.
Also, I've briefly taken a look in the seasonal forecasts for the upcoming Fall and Ealy Winter Months. The North Atlantic Oscillation looks to be in Positive Phases which supports my theory from Early Spring. I think we'll have a warm fall similiar to last year for Sept-Nov. Hopefully, the NOA slips into negative phases which would allow for a stormy winter weather setup. Doesn't look to be the case at the moment for Oct-Dec. But for now, I'm just going to call for more of a seasonal December. Nothing extraordinary at the moment. Lets finish summer first!
10 Day Detailed Outlook
Tonight-Clear & Comfortable. Low 65.
Tomorrow-Sunny. High 92.
Wednesday PM-Partly Coudy. Low 69.
Thursday-Mixed Sun & Clouds. High 90.
Thursday PM-Partly to Mostly Cloudy. Chance of Showers/T'Storms. Low 68.
Friday-Cloudy. Showers/T'Storms. High 85.
Friday PM-Cloudy. Showers/T'Storms. Low 67.
Saturday-Cloudy. Showers/T'Storms. High 85.
Saturday PM-Cloudy. Showers/T'Storms. Low 67.
Sunday-Cloudy. Showers/T'Storms. High 88.
Sunday PM-Cloudy. Showers/T'Storms. Low 68.
Monday-Cloudy. Showers/T'Storm. High 87.
Monday PM-Partly Cloudy. Low 67.
Tuesday-Partly Sunny. High 85.
Tuesday PM-Mostly Clear. Low 66.
Wednesday-Sunny & Seasonal. High 86.
Wednesday PM-Partly Cloudy. Low 68.
Thursday-Sunny. High 89.
Thursday PM-Partly Cloudy. Low 69.
Friday-Mixed Sun & Clouds. High 90.
Friday PM-Partly Cloudy. Chance of T'Storms. Low 70.
JULY 2012 Temperature Data
Actual Avg High----98.8°. This is 13.8° above the normal avg high of 85 for July.
Actual Avg Low-----74.2°. This is 8.2° above the normal avg low of 66 for July.
Actual Avg Temp---86.5°. This is 11.5° above the normal monthly temp of 75 for July.
JULY 2012 Precipitation Data
Precip Since JULY 1----TRACE. This is -1.57" from normal for JULY 1-10TH.
Precip Since JUN 1----0.09". This is -5.73" from normal 5.82" for JUNE 1-JULY 10TH.
Precip Since JAN 1----15.15". This is -8.07" from normal 23.22" for JAN 1-JULY 10TH.
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