Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Climate/Almanac Data - Sep Normals - Sep Records

SEPTEMBER

Site (Click site name for report)	Avg Temp	Norm 1991-2020	Dept From Norm	Precip Total	Norm 1991-2020	Dept From Norm
Burlington	68.1°	66.7°	+1.4°	0.61" (7)	3.53"	-2.92"
Cedar Rapids	67.3°	63.3°	+4.0°	Trace (1)	3.40"	-3.40"
Davenport	67.0°	64.6°	+2.4°	0.59"	3.47"	-2.88"
Dubuque	66.6°	62.3°	+4.3°	0.08" (2)	3.82"	-3.74"
Iowa City	68.7°	65.8°	+2.9°	0.03" (1)	3.24"	-3.21"
Moline	68.0°	66.1°	+1.9°	0.42" (4)	3.32"	-2.90"

The ranking is listed in parentheses (__) when within the "Top 10".

September 2024 was about 1.5 to 4.5 degrees above normal.

Precipitation totals were about 3 to 3.75" below normal!

Cedar Rapids only saw rain 3 days, with each time only amounting to a trace (not measurable)! It was the driest September ever!

Please see Sep Records for monthly record information.


Burlington	Cedar Rapids	Davenport	Dubuque	Iowa City	Moline

The climate maps below are courtesy of the Northeast Regional Climate Center

These maps should update to the most recent "last month" on the first of the month.


Average Temperature	Temperature Departure from Normal	Precipitation	Precipitation Percent of Normal

A LOOK AHEAD

Climate Prediction Center

October Temperature Outlook	October Precipitation Outlook	October - December Temperature Outlook	October - December Precipitation Outlook

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Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Driest September for Some Areas - Sep. '24 Review and October Outlook