Past IEM Features tagged: jun

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June Sigma Departures

03 Jul 2017 05:26 AM
With the calendar now saying July, it is a good time to look back on June in Iowa. The featured chart compares June growing degree day and precipitation departures for a statewide Iowa average value. These departures are expressed in terms of standard deviations (sigma) from the mean. This allows for a comparison between variables that have different units of measure, but have similar statistical distributions. The value for 2017 came in just above average for GDDs and below average for precipitation. Years that are on the fringes of the plot are labelled as well.

Voting:
Good: 6
Bad: 0
Abstain: 1

Tags:   jun  

Reaching 80+ in June

01 Jun 2017 05:02 AM
Our recent stretch of weather has not seen much in the way of hot weather. It has been since mid May that temperatures were well into the 80s and even some 90s. The featured chart looks at the frequency of daily high temperatures in June being at 80+ degrees for Des Moines. While we are past Memorial Day and into June, if this temperature level is your threshold for summer, we still have a week or so to go before this warmth rises above the 50% level (meaning more common than not). The actual forecast says a bit otherwise with warm and muggier air arriving tomorrow and sticking around for the weekend.

Voting:
Good: 6
Bad: 0

Tags:   jun  

10th 90 degree day this June

23 Jun 2016 04:39 AM
The hot weather for much of the state continued on Wednesday with Des Moines reaching 90+ degrees for the 10th day this June. The featured chart displays the number of days each June at 90+ degrees for the site. This year's total now matches 2012 and is the largest total since 1988. The current forecast has mostly cooler temperatures back in the 80s, but there is a chance of 90s again for this coming weekend.

Voting:
Good: 10
Bad: 0

Tags:   jun  


Cold Start to June

06 Jun 2013 05:35 AM
Temperatures struggled to reach 70 degrees again yesterday in Iowa. June has gotten off to a cold start with the highest temperature reported by Des Moines so far of only 72 degrees. The featured chart presents the range of daily high temperatures for Des Moines for the first five days of June. Only 1903 and 1927 got off to a colder start of only 71 degrees. Interestingly, this year is tied with 1993! Of course, that was the great flood year in the Midwest. The forecast does hold hope that we may hit 80 degrees next week.

Voting:
Good: 38
Bad: 4

Tags:   jun  


Extremes in June

24 Jun 2011 07:05 AM
This June has seen its fair share of extreme high temperature both on the warm and cold side. The featured chart compares the number of days above the 75th percentile with the number below the 25th for each June back to 1893. An average year would see around 15 days per month within these two intervals. Interestingly, it is much more rare to see many days in a month below the 25th. This is because the cold patterns tend to be more transient than the hot and dry patterns that can be reinforced by ample sunshine and dry conditions.

Voting:
Good: 13
Bad: 12

Tags:   jun  


click image for chart since 1893

Wet June Already

22 Jun 2011 05:50 AM
For Ames, yesterday's rain put the total for June above average. The featured chart presents the June and yearly rainfall totals. The year long total has been above long term average each of the past nine years, but the June total has not been as consistent. More rain is in the forecast to add to our June totals.

Voting:
Good: 16
Bad: 2

Tags:   jun  


One inch rains

30 Jun 2009 06:10 AM
Preliminary data would suggest that Ames did not receive a daily rainfall over one inch for the month of June. The featured chart shows the frequency of having an one inch rainfall per day for the month of June. 2008 experienced 3 days while 1947 had 5. While June 2009 still has one day to go, the chances of getting rain today are near zero.

Voting:
Good: 12
Bad: 11

Tags:   jun