Average Lows Dropping

The last several mornings have had temperatures in the lower to middle 60s.  However, this time of year, we should be right around 50° for our morning temperatures.  That quickly drops in the next several weeks, as we transition from summer to fall.  The Autumnal Equinox is officially Saturday, September 22 at 8:45 PM…so just six days away.


Posted under Temperatures

This post was written by Kyle Kiel on September 16, 2018

Several Hours of Rain

In just a few days we have had more measurable precipitation hours than most full months of 2018.

Thursday morning low temperatures dropped into the 20s across northern Minnesota. Here are the lows plotted on a map and the temperatures in the 20s are circled in blue.

We now have Tropical Storm Florence in the Atlantic. It is forecast to strengthen into a major hurricane as it moves toward the US. Still several days out to know if it will impact the US next week.


Posted under Precipitation Totals, Temperatures, Tropics

This post was written by Schnack on September 6, 2018

National High/Low

Here is a look at the top daily high and low temperatures so far this year. The map shows where the daily high and low temperatures are across the nation.


Posted under Temperatures

This post was written by Schnack on July 16, 2018

Summer Heat Rolls On

We’ve got one more day in our latest heat wave.  Monday’s temperatures will be in the middle 80s in northern Iowa, where they are closer to the cold front.

Farther south, temperatures will be in the lower to middle 90s, with Heat Index values 100° to 105°+ at times.



Posted under Heat, Temperatures

This post was written by Kyle Kiel on June 17, 2018

Warm May…Saturday Rain…Hot and Humid Again

It was a warm May.  The average temperatures for the month put most of the locations in top 5 warmest May on record.

We catch a nice break from the heat and humidity for the weekend as a cold front pushes through the state. A few showers and storms are possible Saturday…mainly in the afternoon. By the end of next week it will be hot and humid again. Next weekend looks hot and humid. Here is the temperature outlook for June 9-15.

Showers and storms to our west will weaken overnight. If any of the rain makes into eastern Iowa by morning it will be very light.

The front producing the storms this evening will bring a few showers/storms to eastern Iowa Saturday afternoon. No severe weather is expected. The showers will be scattered. The map shows the position of the front Friday evening.


Posted under Climate, Long Range Outlook, Temperatures

This post was written by Schnack on June 1, 2018

Ending our Stretch of 90+

After today, cooler air tracks into eastern Iowa. But, not before this heat wave goes down in the history books. Daily record highs were broken across the Big Four over the Memorial Day weekend.

This was the longest stretch of 90°+ during the month of May in Waterloo since 1934. Dust Bowl, anyone? Also known as the “Dirty Thirties”, several rounds of drought plagued the United States during the 1930s.

In 1934, the Waterloo area saw four days of 90°+ that May, like we did in May 2018.

Dubuque saw two days in a row of 90°+ this month while Cedar Rapids and Iowa City both also saw four days of 90°+ for May 2018.

Normal highs this time of year run in the 70s. Cooler air is on the way starting midweek.


Posted under Climate, Heat, Temperatures

This post was written by Rachael Peart on May 29, 2018

Record Heat

No doubt about it, it’s been an unusually warm Memorial Day weekend across eastern Iowa.  Here are the high temperatures from across the area:

Waterloo, Dubuque, Cedar Rapids and Iowa City all broke records.  Some of those records were more than 100 years old!

These temperatures are unusual for May, but to put this into perspective, it hasn’t been this warm in our neck of the woods since 2012 and 2013.  Last time temperatures were this warm:

Waterloo: September 10, 2013 97°
Dubuque: July 25, 2012 101°
Cedar Rapids: September 10, 2013 97°
Iowa City: September 10, 2013 99°

The heat is not going to let up as we head into the Memorial Day holiday itself, with more record heat likely.  Fortunately, the humidity levels won’t be terrible.  If this were toward the middle of summer where we had corn at its peak, this would be more unbearable for us.


Posted under Heat, Records, Temperatures

This post was written by Kyle Kiel on May 27, 2018

Coldest April on Record

April 2018 goes into the record books as the coldest on record at Waterloo. As of yesterday, the average monthly temperature at Waterloo was 37.1° . Today’s numbers will push them up a bit. Here are the 10 coldest April’s in Waterloo.

Dubuque was also the coldest on record. The chart below is for Dubuque.

Cedar Rapids is no stranger to this record cold April either. Here are the number for Cedar Rapids.

Much of the Iowa and areas to the north had temperatures below normal in April.

This map below is broken up by climate districts. All of the districts with the number 126 in them represents the coldest April in those locations. One represents the hottest and 126 is the coldest.


Posted under Climate, Temperatures

This post was written by Schnack on April 30, 2018

Colder than… Alaska

We have said it before and are saying it again… it has been a cold start to spring here in eastern Iowa. In fact, through the first half of April, all of the Big Four have average temperatures colder than Anchorage, Alaska.


The average temperature through the first 16 days of April in Anchorage was 37.3°. Iowa City has the warmest average temperature, as you would expect with it being the farthest south of the Big Four, at 35.0°. That is a full 2.0° colder. The capital city in Alaska, Juneau, has an average temperature through the 16th of 38.9° – nearly 4.0° warmer than Iowa City thus far in the month.

Warmer air is on the way. The Climate Prediction Center is calling for a chance of above normal temperatures to close out the month.


Posted under Temperatures, Winter Weather

This post was written by Rachael Peart on April 17, 2018

Record April Cold

It’s cold.  It’s plain and simple.  You and I both know its cold, and the record books show it.

Here are the high temperatures from Monday.  These are typically temperatures we’d see in February.

These are the coldest temperatures we’ve ever seen on April 16th.  Waterloo and Cedar rapids tied the record, while Dubuque and Iowa City broke the record cold maximum temperatures.

The first half of the month has been on for the record books.  Waterloo, Dubuque and Iowa City’s average temperature is the coldest its ever been for the first 15 days of April on record, with Cedar Rapids coming in as the second coldest.

Waterloo: 30.6°

Dubuque: 31.1°

Cedar Rapids: 36.4° (#2)  — (#1: 35.9° in 1975 )

Iowa City: 35.2°

There is good news, warmer temperatures are forecast by the end of the week, into the weekend.



Posted under Records, Temperatures, Winter Weather

This post was written by Kyle Kiel on April 16, 2018