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Winter in Delaware County, Iowa

166 winter storms and snow events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Winter Storm, Winter Weather, Heavy Snow, Blizzard, Ice Storm, Lake-Effect Snow, Sleet.

166 events · 1 deaths recorded · peak month December · county share of state 1.5%

Winter event locations in and around Delaware County. Boundaries: US Census Bureau.

NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. Storm records through 30 Jun 2026.

Delaware County, Iowa, has 166 winter events in the NCEI record since 1950, with at least one in 30 different years.

December is the busiest month, with 53 of the recorded events. The last 20 years account for 105 events against 61 in the 20 years before, a change that reflects reporting practice as much as weather.

The county holds 1.5% of the 10,746 winter events recorded in Iowa; its 28.7 per 100 square miles compares with 19.2 statewide.

NCEI attributes 1 death in the county to winter storms and snow.

Some winter weather and high wind events are recorded by NWS forecast zone rather than by county; zone-recorded events whose zone is named for the county are included and marked "Forecast zone" in the table.

Compared with Iowa

Measure	Delaware County	Iowa	US
Winter events since 1950	166	10,746	287,339
Per 100 square miles	28.7	19.2	8.1
Per 10,000 residents	94.8	33.7	8.7
Deaths recorded	1	47	2,509
Busiest month	December	January	January

By year

195019882026

Winter events recorded in Delaware County per year, 1950 to 2026 (2026 is partial).

Seasonality

Jan
45Feb
34Mar
17Apr
5May
0Jun
0Jul
0Aug
0Sep
0Oct
2Nov
10Dec
53

Winter events in Delaware County by month of occurrence, all years.

Recorded events

All 166 events, most recent first. Magnitude is hail size, tornado rating or wind speed as recorded.

Date	Event type	Magnitude	Property damage	Crop damage	Deaths	Injuries	Geography
15 Mar 2026	Blizzard	—	—	—	—	—	Forecast zone
28 Nov 2025	Winter Storm	—	—	—	—	—	Forecast zone
11 Feb 2025	Winter Storm	—	—	—	—	—	Forecast zone
14 Dec 2024	Ice Storm	—	—	—	—	—	Forecast zone
2 Apr 2024	Winter Weather	—	—	—	—	—	Forecast zone
12 Jan 2024	Winter Storm	—	—	—	—	—	Forecast zone
8 Jan 2024	Winter Storm	—	—	—	—	—	Forecast zone
22 Feb 2023	Ice Storm	—	—	—	—	—	Forecast zone
23 Dec 2022	Blizzard	—	—	—	—	—	Forecast zone
21 Dec 2022	Winter Storm	—	—	—	—	—	Forecast zone
28 Dec 2021	Winter Weather	—	—	—	—	—	Forecast zone
15 Mar 2021	Winter Storm	—	—	—	—	—	Forecast zone
4 Feb 2021	Blizzard	—	—	—	—	—	Forecast zone
30 Jan 2021	Winter Storm	—	—	—	—	—	Forecast zone
25 Jan 2021	Winter Storm	—	—	—	—	—	Forecast zone
29 Dec 2020	Winter Storm	—	—	—	—	—	Forecast zone
17 Jan 2020	Winter Storm	—	—	—	—	—	Forecast zone
10 Nov 2019	Winter Weather	—	—	—	—	—	Forecast zone
30 Oct 2019	Winter Weather	—	—	—	—	—	Forecast zone
24 Feb 2019	Blizzard	—	—	—	—	—	Forecast zone
11 Feb 2019	Winter Storm	—	—	—	—	—	Forecast zone
22 Jan 2019	Winter Weather	—	—	—	—	—	Forecast zone
18 Jan 2019	Winter Storm	—	—	—	—	—	Forecast zone
18 Apr 2018	Winter Weather	—	—	—	—	—	Forecast zone
8 Apr 2018	Winter Weather	—	—	—	—	—	Forecast zone
3 Apr 2018	Winter Weather	—	—	—	—	—	Forecast zone
23 Mar 2018	Heavy Snow	—	—	—	—	—	Forecast zone
7 Feb 2018	Heavy Snow	—	—	—	—	—	Forecast zone
29 Dec 2017	Winter Weather	—	—	—	—	—	Forecast zone
28 Dec 2015	Heavy Snow	—	—	—	—	—	Forecast zone
20 Nov 2015	Winter Storm	—	—	—	—	—	Forecast zone
1 Feb 2015	Winter Storm	—	—	—	—	—	Forecast zone
8 Jan 2015	Winter Weather	—	—	—	—	—	Forecast zone
5 Jan 2015	Winter Weather	—	—	—	—	—	Forecast zone
15 Nov 2014	Winter Weather	—	—	—	—	—	Forecast zone
1 Mar 2014	Winter Weather	—	—	—	—	—	Forecast zone
18 Jan 2014	Winter Weather	—	—	—	—	—	Forecast zone
21 Dec 2013	Winter Storm	—	—	—	—	—	Forecast zone
19 Dec 2013	Winter Weather	—	—	—	—	—	Forecast zone
10 Dec 2013	Winter Weather	—	—	—	—	—	Forecast zone
8 Dec 2013	Winter Weather	—	—	—	—	—	Forecast zone
4 Mar 2013	Winter Storm	—	—	—	—	—	Forecast zone
26 Feb 2013	Winter Storm	—	—	—	—	—	Forecast zone
21 Feb 2013	Winter Storm	—	—	—	—	—	Forecast zone
30 Jan 2013	Winter Storm	—	—	—	—	—	Forecast zone
27 Jan 2013	Winter Weather	—	—	—	—	—	Forecast zone
19 Dec 2012	Blizzard	—	—	—	—	—	Forecast zone
23 Feb 2012	Winter Weather	—	—	—	—	—	Forecast zone
20 Jan 2012	Heavy Snow	—	—	—	—	—	Forecast zone
11 Jan 2012	Winter Storm	—	—	—	—	—	Forecast zone
9 Nov 2011	Winter Weather	—	—	—	1	—	Forecast zone
20 Feb 2011	Winter Weather	—	—	—	—	—	Forecast zone
1 Feb 2011	Blizzard	—	—	—	—	—	Forecast zone
17 Jan 2011	Winter Weather	—	—	—	—	—	Forecast zone
23 Dec 2010	Winter Storm	—	—	—	—	—	Forecast zone
20 Dec 2010	Winter Weather	—	—	—	—	—	Forecast zone
15 Dec 2010	Winter Weather	—	—	—	—	—	Forecast zone
11 Dec 2010	Winter Storm	—	—	—	—	—	Forecast zone
3 Dec 2010	Winter Storm	—	—	—	—	—	Forecast zone
24 Nov 2010	Winter Weather	—	—	—	—	—	Forecast zone
19 Mar 2010	Winter Weather	—	—	—	—	—	Forecast zone
7 Feb 2010	Winter Weather	—	—	—	—	—	Forecast zone
25 Jan 2010	Winter Weather	—	—	—	—	—	Forecast zone
6 Jan 2010	Winter Storm	—	—	—	—	—	Forecast zone
25 Dec 2009	Winter Weather	—	—	—	—	—	Forecast zone
23 Dec 2009	Ice Storm	—	—	—	—	—	Forecast zone
21 Dec 2009	Winter Weather	—	—	—	—	—	Forecast zone
9 Dec 2009	Blizzard	—	—	—	—	—	Forecast zone
8 Dec 2009	Winter Storm	—	—	—	—	—	Forecast zone
9 Jan 2009	Heavy Snow	—	—	—	—	—	Forecast zone
24 Dec 2008	Winter Weather	—	—	—	—	—	Forecast zone
20 Dec 2008	Blizzard	—	—	—	—	—	Forecast zone
18 Dec 2008	Heavy Snow	—	—	—	—	—	Forecast zone
16 Dec 2008	Winter Weather	—	—	—	—	—	Forecast zone
8 Dec 2008	Winter Weather	—	—	—	—	—	Forecast zone
8 Dec 2008	Ice Storm	—	—	—	—	—	Forecast zone
3 Dec 2008	Winter Weather	—	—	—	—	—	Forecast zone
29 Nov 2008	Winter Weather	—	—	—	—	—	Forecast zone
27 Mar 2008	Winter Weather	—	—	—	—	—	Forecast zone
3 Mar 2008	Winter Weather	—	—	—	—	—	Forecast zone
28 Feb 2008	Winter Weather	—	—	—	—	—	Forecast zone
25 Feb 2008	Winter Weather	—	—	—	—	—	Forecast zone
16 Feb 2008	Winter Storm	—	—	—	—	—	Forecast zone
11 Feb 2008	Winter Weather	—	—	—	—	—	Forecast zone
5 Feb 2008	Winter Storm	—	—	—	—	—	Forecast zone
29 Jan 2008	Winter Weather	—	—	—	—	—	Forecast zone
21 Jan 2008	Winter Weather	—	—	—	—	—	Forecast zone
16 Jan 2008	Winter Weather	—	—	—	—	—	Forecast zone
28 Dec 2007	Winter Weather	—	—	—	—	—	Forecast zone
22 Dec 2007	Winter Storm	—	—	—	—	—	Forecast zone
11 Dec 2007	Winter Storm	—	—	—	—	—	Forecast zone
6 Dec 2007	Winter Weather	—	—	—	—	—	Forecast zone
4 Dec 2007	Winter Weather	—	—	—	—	—	Forecast zone
1 Dec 2007	Winter Storm	—	—	—	—	—	Forecast zone
21 Nov 2007	Winter Weather	—	—	—	—	—	Forecast zone
10 Apr 2007	Heavy Snow	—	—	—	—	—	Forecast zone
1 Mar 2007	Winter Weather	—	—	—	—	—	Forecast zone
24 Feb 2007	Winter Storm	—	$26K	—	—	—	Forecast zone
23 Feb 2007	Winter Weather	—	—	—	—	—	Forecast zone
16 Feb 2007	Winter Weather	—	—	—	—	—	Forecast zone
13 Feb 2007	Winter Weather	—	—	—	—	—	Forecast zone
11 Feb 2007	Winter Weather	—	—	—	—	—	Forecast zone
6 Feb 2007	Winter Weather	—	—	—	—	—	Forecast zone
21 Jan 2007	Winter Weather	—	—	—	—	—	Forecast zone
13 Jan 2007	Winter Weather	—	—	—	—	—	Forecast zone
5 Mar 2006	Winter Weather	—	$2K	—	—	—	Forecast zone
16 Feb 2006	Winter Weather	—	$1K	—	—	—	Forecast zone
8 Dec 2005	Winter Weather	—	—	—	—	—	Forecast zone
22 Jan 2005	Blizzard	—	$5K	—	—	—	Forecast zone
5 Jan 2005	Heavy Snow	—	$10K	—	—	—	Forecast zone
1 Jan 2005	Ice Storm	—	$5K	—	—	—	Forecast zone
5 Feb 2004	Heavy Snow	—	$5K	—	—	—	Forecast zone
16 Jan 2004	Winter Weather	—	$5K	—	—	—	Forecast zone
4 Jan 2004	Heavy Snow	—	$5K	—	—	—	Forecast zone
4 Mar 2003	Winter Storm	—	—	—	—	—	Forecast zone
14 Feb 2003	Winter Storm	—	—	—	—	—	Forecast zone
28 Jan 2003	Winter Storm	—	—	—	—	—	Forecast zone
9 Mar 2002	Blizzard	—	—	—	—	—	Forecast zone
1 Mar 2002	Winter Storm	—	—	—	—	—	Forecast zone
15 Mar 2001	Heavy Snow	—	—	—	—	—	Forecast zone
23 Feb 2001	Winter Storm	—	—	—	—	—	Forecast zone
14 Feb 2001	Winter Weather	—	—	—	—	—	Forecast zone
8 Feb 2001	Winter Storm	—	—	—	—	—	Forecast zone
7 Feb 2001	Ice Storm	—	—	—	—	—	Forecast zone
28 Jan 2001	Ice Storm	—	—	—	—	—	Forecast zone
26 Jan 2001	Heavy Snow	—	—	—	—	—	Forecast zone
13 Jan 2001	Winter Weather	—	—	—	—	—	Forecast zone
1 Jan 2001	Heavy Snow	—	—	—	—	—	Forecast zone
28 Dec 2000	Heavy Snow	—	—	—	—	—	Forecast zone
23 Dec 2000	Heavy Snow	—	—	—	—	—	Forecast zone
20 Dec 2000	Heavy Snow	—	—	—	—	—	Forecast zone
18 Dec 2000	Heavy Snow	—	—	—	—	—	Forecast zone
15 Dec 2000	Ice Storm	—	—	—	—	—	Forecast zone
10 Dec 2000	Winter Storm	—	—	—	—	—	Forecast zone
7 Dec 2000	Winter Weather	—	—	—	—	—	Forecast zone
1 Dec 2000	Heavy Snow	—	—	—	—	—	Forecast zone
1 Dec 2000	Heavy Snow	—	—	—	—	—	Forecast zone
17 Feb 2000	Winter Storm	—	—	—	—	—	Forecast zone
13 Feb 2000	Winter Storm	—	—	—	—	—	Forecast zone
29 Jan 2000	Winter Storm	—	—	—	—	—	Forecast zone
19 Jan 2000	Winter Storm	—	—	—	—	—	Forecast zone
17 Jan 2000	Winter Storm	—	—	—	—	—	Forecast zone
3 Jan 2000	Winter Storm	—	—	—	—	—	Forecast zone
23 Dec 1999	Winter Storm	—	—	—	—	—	Forecast zone
19 Dec 1999	Winter Storm	—	—	—	—	—	Forecast zone
16 Dec 1999	Winter Storm	—	—	—	—	—	Forecast zone
8 Mar 1999	Winter Storm	—	—	—	—	—	Forecast zone
5 Mar 1999	Winter Storm	—	—	—	—	—	Forecast zone
1 Jan 1999	Winter Storm	—	—	—	—	—	Forecast zone
30 Dec 1998	Winter Storm	—	—	—	—	—	Forecast zone
6 Dec 1998	Winter Storm	—	—	—	—	—	Forecast zone
6 Dec 1998	Winter Storm	—	—	—	—	—	Forecast zone
8 Mar 1998	Heavy Snow	—	—	—	—	—	Forecast zone
20 Jan 1998	Winter Storm	—	—	—	—	—	Forecast zone
14 Nov 1997	Winter Storm	—	—	—	—	—	Forecast zone
26 Oct 1997	Heavy Snow	—	—	—	—	—	Forecast zone
3 Feb 1997	Winter Storm	—	—	—	—	—	Forecast zone
24 Jan 1997	Winter Storm	—	—	—	—	—	Forecast zone
15 Jan 1997	Winter Storm	—	—	—	—	—	Forecast zone
9 Jan 1997	Winter Storm	—	—	—	—	—	Forecast zone
27 Dec 1996	Winter Storm	—	—	—	—	—	Forecast zone
25 Dec 1996	Winter Storm	—	—	—	—	—	Forecast zone
14 Nov 1996	Winter Storm	—	—	—	—	—	Forecast zone
26 Jan 1996	Winter Storm	—	—	—	—	—	Forecast zone
26 Jan 1996	Blizzard	—	—	—	—	—	Forecast zone
18 Jan 1996	Heavy Snow	—	—	—	—	—	Forecast zone

Questions and answers

How many winter events has Delaware County had?

166 events in the NCEI Storm Events record between 1950 and 2026. Reporting of winter storms and snow became far more complete after 1996, so early decades undercount.

When was the last recorded winter event in Delaware County?

15 Mar 2026 (Blizzard). Records reach NCEI about 120 days after the month ends.

What was the most damaging winter event recorded in Delaware County?

The winter storm of 24 Feb 2007, with property damage estimated by NCEI at $26K.

How does Delaware County compare with Iowa for winter?

28.7 events per 100 square miles against 19.2 statewide; the county holds 166 of the state's 10,746 recorded events.

Provenance

NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026, public domain. County-recorded events plus zone-recorded events whose forecast zone is named for the county (marked "Forecast zone"). Population and area from the US Census Bureau (2021). Built 1 Oct 2026. See the methodology, the Winter hub and the county page.