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 - Dec Normals - Dec Records

December

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	27.7°	29.1°	-1.4°	0.14"	2.09"	-1.95"	NA	7.5"	NA
Cedar Rapids	23.6°	23.3°	+0.3°	0.61"	1.42"	-0.81"	NA	7.8"	NA
Davenport	25.1°	25.3°	-0.2°	0.54"	1.73"	-1.19"	6.4"	NA	NA
Dubuque	22.3°	22.8°	-0.5°	0.71"	1.84"	-1.13"	5.7"	11.8"	-6.1"
Iowa City	26.5°	25.2°	+1.3°	0.63"	1.52"	-0.89"	NA	NA	NA
Moline	27.1°	26.6°	+0.5°	0.52"	2.18"	-1.66"	9.6"	9.3"	+0.3"

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

December 2017 ranged from near 1.5°F below normal to around 1.5°F degrees above normal.

Precipitation totals for December 2017 were near a quarter of an inch to around 2 inches below normal.

Snowfall totals for December 2017 were near to around 6 inches below normal.

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

2017

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	53.7°	53.0°	+0.7°	31.60"	38.48"	-6.88"	NA	23.5"	NA
Cedar Rapids	50.1°	48.2°	+1.9°	26.09"	34.61"	-8.52"	NA	26.7"	NA
Davenport	51.1°	49.3°	+1.8°	36.91"	36.03"	+0.88"	15.2"	NA	NA
Dubuque	48.7°	47.3°	+1.4°	36.00"	36.29"	-0.29"	15.5" (2)	41.9"	-26.4"
Iowa City	52.8°	50.0°	+2.8°	31.21"	36.28"	-5.07"	NA	NA	NA
Moline	52.8° (8)	50.7°	+2.1°	36.11"	37.96"	-1.85"	18.2"	31.6"	-13.4"

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

2017 was about 1 to 3 degrees above normal.

Precipitation totals for 2017 ranged from around 1 inch above normal at Davenport to near 9 inches below normal at Cedar Rapids.

Snowfall totals for 2017 were between 10 to 25 inches below normal. Dubuque recorded it's second least snowy season on record.

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, 2017.

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