Slight Risk for Excessive Rainfall and Severe Thunderstorms Thursday

Additional rounds of thunderstorms are expected Thursday and Thursday night across Oklahoma and north Texas, with risks for both large hail and flash flooding. Strong winds may accompany any storms from east Texas northeast through the lower Great Lakes. Read More >

Climate/Almanac Data - Dec Normals - Dec Records

December 2020

Site (Click site name for report)	Avg Temp	Normal	Dept From Norm	Precip Total	Normal	Dept From Norm	Snowfall Total	Normal	Dept From Norm
Burlington	31.0°	29.1°	+1.9°	1.82"	2.09"	-0.27"	NA	7.5"	NA
Cedar Rapids	26.3°	23.3°	+3.0°	1.68"	1.42"	+0.26"	NA	7.8"	NA
Davenport	29.5°	25.3°	+4.2°	2.29"	1.73"	+0.56"	11.4"	NA	NA
Dubuque	26.3°	22.8°	+3.5°	2.66"	1.84"	+0.82"	18.0"	11.8"	+6.2"
Iowa City	28.6°	25.2°	+3.4°	2.17"	1.52"	+0.65"	NA	NA	NA
Moline	31.1°	26.6°	+4.5°	2.81"	2.18"	+0.63"	10.3"	9.3"	+1.0"

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

December 2020 was about 2 to 5 degrees above normal.

Precipitation totals for December 2020 were about 1/4" to 1" above normal for all sites, except Burlington, which was a little below normal.

Snowfall totals for December 2020 were about 1-6 inches above normal for Dubuque and Moline.

Please see Dec 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	Accumulated Snowfall	Accumulated Snowfall Percent of Mean

Climate/Almanac Data - Annual Normals - Annual Records

2020 Annual Climate

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°	53.0°	-0.3°	29.83"	38.48"	-8.65"	NA	23.5"	NA
Cedar Rapids	48.7°	48.2°	+0.5°	31.55"	34.61"	-3.06"	NA	26.7"	NA
Davenport	51.0°	49.3°	+1.7°	38.34"	36.03"	-2.31"	40.4"	NA	NA
Dubuque	48.3°	47.3°	+1.0°	31.91"	36.29"	-4.38"	41.2"	41.9"	-0.7"
Iowa City	51.3°	50.0°	+1.3°	34.86"	36.28"	-1.42"	NA	NA	NA
Moline	52.9°	50.7°	+2.2°	36.40"	37.96"	-1.56"	39.3"	31.6"	+7.7"

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

2020 temperatures were up to 2 degrees above normal.

Precipitation totals for 2020 ranged from 1.0 to 9.0 inches below normal, with most sites indicating Record Low precipitation.

Snowfall totals for 2020 were about 8 inches above normal at Moline, and almost an inch below normal at Dubuque.

Please see Annual Records for annual record information.

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

These maps will be updated on January 1.

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