Heat Wave Expands to the East Coast; Flash Flooding Likely in the Central Plains into the Midwest; Severe Thunderstorms in the Northeast

Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. Read More >

Climate/Almanac Data - August Normals - August Records

August

Site (Click site name for report)	Avg Temp	Normal 1991-2020	Dept From Norm	Precip Total	Normal 1991-2020	Dept From Norm
Burlington	75.3°	73.8°	+1.5°	3.87"	3.77"	+0.10"
Cedar Rapids	73.2°	70.8°	+2.4°	2.35"	4.07"	-1.72"
Davenport	73.6°	71.7°	+1.9°	1.69"	3.96"	-2.27"
Dubuque	72.3°	69.8°	+2.5°	5.53"	3.95"	+1.58"
Iowa City	75.4°	73.5°	+1.9°	2.61"	3.94"	-1.33"
Moline	75.9°	73.4°	+2.5°	3.96"	3.97"	-0.01"

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

August 2021 was 1.5 to 2.5 degrees above normal.

Precipitation totals for August 2021 were normal to around 2 1/4" below normal, except Dubuque where it was ~1.5" above.

Please see August 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 - Summer Normals - Summer Records

Summer
(Jun-Aug)

Site (Click site name for report courtesy of the Iowa Environmental Mesonet.)	Average Temperature	Normal 1991-2020	Departure From Normal	Precipitation Total	Normal 1991-2020	Departure From Normal
Burlington	74.6°	73.9°	+0.7°	14.90"	12.66"	+2.24"
Cedar Rapids	73.1°	71.1°	+2.0°	5.54"	14.04"	-8.50"
Davenport	73.6°	72.2°	+1.4°	9.36"	12.76"	-3.40"
Dubuque	72.5°	70.0°	+2.5°	13.02"	13.94"	-0.92"
Iowa City	75.6°	73.9°	+1.7°	9.45"	13.14"	-3.69"
Moline	75.6°	73.7°	+1.9°	10.77"	13.21"	-2.44"