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 - May Normals - May Records

May

Site (Click site name for report)	Avg Temp	Normal 1991-2020	Dept From Norm	Precip Total	Normal 1991-2020	Dept From Norm
Burlington	62.0°	63.0°	-1.0°	3.88"	4.93"	-1.05"
Cedar Rapids	61.3°	60.3°	+1.0°	2.29"	4.25"	-1.96"
Davenport	61.2°	61.7°	-0.5°	4.15"	4.82"	-0.67"
Dubuque	58.7°	58.8°	-0.1°	3.67"	4.30"	-0.63"
Iowa City	61.8°	62.6°	-0.8°	2.96"	4.48"	-1.62"
Moline	60.7°	62.5°	-1.8°	5.58"	4.67"	+0.91"

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

May 2025 was about 1.8 degrees below normal to 1 degree above normal.

Precipitation totals were about 1.96 inches below normal to 0.91 inches above normal.

Please see May 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 and Midwest Regional Climate Center.

These maps should update by early afternoon on the first of the month.


Average Temperature	Temperature Departure from Normal	Precipitation	Precipitation Percent of Normal

Climate/Almanac Data - Spring Normals - Spring Records

Spring
(Mar-May)

Site	Avg Temp	Normal 1991-2020	Dept From Norm	Precip Total	Normal 1991-2020	Dept From Norm	Snowfall Total	Normal 1991-2020	Dept From Norm
Burlington	54.4°	52.0°	+2.4°	9.26"	11.28"	-2.02"	NA	NA	NA
Cedar Rapids	52.7°	48.6°	+4.1°	7.98"	9.80"	-1.82"	NA	NA	NA
Davenport	52.6°	50.2°	+2.4°	9.63"	10.77"	-1.14"	1.6"	NA	NA
Dubuque	49.8°	47.2°	+2.6°	9.15"	10.61"	-1.46"	2.3"	7.6"	-5.3"
Iowa City	53.4°	51.1°	+2.3°	8.72"	10.45"	-1.73"	NA	NA	NA
Moline	52.8°	51.2°	+1.6°	10.40"	11.10"	-0.70"	1.5"	5.5"	-4.0"

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

Spring 2025 was about 1.6 to 4.1 degrees above normal.

Precipitation totals were about 0.70 to 2.02 inches below normal.

Snowfall totals were about 4.0 inches below normal to 5.3 inches below normal.

Please see Spring Records for seasonal record information.

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

These maps should update by early afternoon on the first of the month.


Mar-May Average Temperature	Mar-May Temperature Departure from Normal	Mar-May Precipitation	Mar-May Precipitation Percent of Normal	Accumulated Snowfall	Accumulated Snowfall Percent of Mean