Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this week. Read More >

Climate/Almanac Data - May Normals - May Records

May

Site (Click site name for report)	Avg Temp	Normal	Dept From Norm	Precip Total	Normal	Dept From Norm
Burlington	60.2°	63.0°	-2.8°	5.77"	4.93"	+0.84"
Cedar Rapids	58.2°	60.3°	-2.1°	2.70"	4.25"	-1.55"
Davenport	60.2°	61.7°	-1.5°	4.07"	4.82"	-0.75"
Dubuque	58.1°	58.8°	-0.7°	2.72"	4.30"	-1.58"
Iowa City	60.7°	62.6°	-1.9°	4.33"	4.48"	-0.15"
Moline	60.6°	62.5°	-1.9°	6.59"	4.67"	+1.92"

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

May 2021 was about 1 to 3 degrees below normal.

Precipitation totals for May 2021 were about 2 inches above normal to 1.6 inches below normal.

Please see May Records for monthly record information.

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

These maps become available around 10am on the first of the month.

Average Temperature	Average Temperature Departure from Mean	Accumulated Precipitation	Accumulated Precipitation Percent of Mean

Climate/Almanac Data - Spring Normals - Spring Records

Spring
(Mar-May)

Site (Click site name for report courtesy of the Iowa Environmental Mesonet.)	Avg Temp	Normal	Dept From Norm	Precip Total	Normal	Dept From Norm	Snowfall Total	Normal	Dept From Norm
Burlington	52.7°	52.0°	+0.7°	13.26"	11.28"	+1.98"	NA	2.0"	NA
Cedar Rapids	49.6°	48.6°	+1.0°	5.88"	9.80"	-3.92"	NA	4.1"	NA
Davenport	51.6°	50.2°	+1.4°	9.40"	10.77"	-1.37"	1.8"	NA	NA
Dubuque	49.1°	47.2°	+1.9°	6.51"	10.61"	-4.1"	3.8"	8.3"	-4.5"
Iowa City	52.0°	51.1°	+0.9°	9.33"	10.45"	-1.12"	NA	NA	NA
Moline	52.4°	51.2°	+1.2°	12.94"	11.10"	+1.84"	1.8"	4.9"	-3.1"

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

Spring 2021 temperatures were about 0.5 degrees 2 degrees above normal.

Precipitation totals for Spring 2021 were about 2 inches above normal to about normal to 4 inches below normal.

Snowfall totals for Spring 2021 were around below normal for Moline and Dubuque.

Please see Spring Records for seasonal record information.

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

These maps become available around 10am on the first of the month.

Average Temperature	Average Temperature Departure from Mean	Accumulated Precipitation	Accumulated Precipitation Percent of Mean	Accumulated Snowfall	Accumulated Snowfall Percent of Mean