NOAA climate atlas · updated August 2026

Delaware Climate Data

Climate normals for 7 station-mapped locations, each from its primary station in Delaware's 19-station NOAA network.

average temperature: 56°F (13°C); Warmer than median
annual precipitation: 46.8"; Wetter than median
annual snowfall: 13.7"; Less snow than median
locations / stations: 7 / 19; State coverage

Delaware's climate in one line

Delaware averages 56°F a year - warmer than 68% of U.S. states, spanning Wilmington Porter Rsch at 53°F to Lewes at 59°F.

56°F
statewide average · 68th percentile of states: 47"
average annual precipitation: 80/100
most comfortable: Georgetown Sussex County: 7
station-mapped locations · 19 NOAA stations

Statewide figures are simple averages across 7 station-mapped locations (each from its primary NOAA station), local conditions vary widely by elevation and coast distance.

How Delaware ranks among all 50 states

Delaware's average temperature vs. all U.S. states

Statewide annual mean temperature, NOAA 1991–2020 normals

56°F Top 32% warmer than 68% of 50 U.S. states

30°F–35°F: 1 US states (2%). Below this entry.
35°F–40°F: 0 US states (0%). Below this entry.
40°F–45°F: 8 US states (16%). Below this entry.
45°F–50°F: 10 US states (20%). Below this entry.
50°F–55°F: 12 US states (24%). Below this entry.
55°F–60°F: 8 US states (16%). This entry sits in this band.
60°F–65°F: 7 US states (14%). Above this entry.
65°F–70°F: 2 US states (4%). Above this entry.
70°F–75°F: 2 US states (4%). Above this entry.

Source NOAA U.S. Climate Normals (statewide aggregate) · 1991–2020

Each bar is a band; taller bars hold more US states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Delaware in the national rankings

Ranks #16 hottest of 50 states at 56.2°F annual average, 3.1°F above the 53.1°F mean of all state averages - see all 50 hottest states ranked by NOAA normals
In winter (Dec–Feb) it averages 37.0°F, the #17 warmest winter of 50 states - winter ranking

Temperature × precipitation · 50-state landscape

Delaware in the national climate landscape

Delaware averages 56.2°F and 46.8 inches of annual precipitation across 7 station-mapped locations. Against the same complete 50-state cohort, that places it in the warmer and wetter half of the chart. Dashed lines mark the national medians of 52.3°F and 43.7 inches.

DE · Delaware56.2°F · 46.8 in · warmer and wetter than the medians

Read all 50 state values

Each point is PlainClimate's simple average across the station-mapped location normals available for that state. Cohort sizes vary and are shown below; the values are not population weighted. Dashed lines mark the median of this 50-state comparison and are guides, not comfort or safety thresholds.

State	Locations	Annual mean	Annual precipitation
Alaska	172	33.5°F	47.6 in
Alabama	100	63.3°F	57.9 in
Arkansas	110	60.7°F	52.2 in
Arizona	169	62.3°F	12.4 in
California	363	59.8°F	21.6 in
Colorado	214	46.3°F	15.9 in
Connecticut	23	50.1°F	48.6 in
Delaware	7	56.2°F	46.8 in
Florida	165	72.6°F	55.2 in
Georgia	122	63.4°F	52.0 in
Hawaii	49	72.4°F	48.5 in
Iowa	143	48.0°F	35.9 in
Idaho	139	46.1°F	18.0 in
Illinois	163	52.2°F	40.7 in
Indiana	116	52.4°F	43.7 in
Kansas	168	54.8°F	31.2 in
Kentucky	95	56.2°F	50.6 in
Louisiana	91	67.3°F	60.3 in
Massachusetts	68	49.2°F	48.2 in
Maryland	42	55.6°F	45.5 in
Maine	79	43.1°F	46.4 in
Michigan	201	45.5°F	34.2 in
Minnesota	172	42.2°F	30.0 in
Missouri	164	55.1°F	43.9 in
Mississippi	91	64.1°F	59.7 in
Montana	215	43.4°F	15.9 in
North Carolina	178	59.1°F	52.2 in
North Dakota	119	41.0°F	19.2 in
Nebraska	171	49.6°F	25.0 in
New Hampshire	52	44.5°F	46.6 in
New Jersey	45	53.6°F	47.9 in
New Mexico	167	54.3°F	13.8 in
Nevada	115	52.4°F	8.9 in
New York	173	47.5°F	43.7 in
Ohio	128	51.6°F	41.1 in
Oklahoma	159	60.3°F	35.7 in
Oregon	180	50.5°F	37.6 in
Pennsylvania	157	50.2°F	45.2 in
Rhode Island	9	51.2°F	48.7 in
South Carolina	100	62.8°F	49.8 in
South Dakota	149	45.6°F	21.8 in
Tennessee	146	58.0°F	56.0 in
Texas	449	66.2°F	31.1 in
Utah	170	49.4°F	13.9 in
Virginia	119	55.8°F	46.0 in
Vermont	41	43.5°F	43.7 in
Washington	149	49.9°F	40.9 in
Wisconsin	200	44.5°F	34.6 in
West Virginia	99	52.3°F	47.6 in
Wyoming	144	43.3°F	14.0 in

Derived by PlainClimate from NOAA 1991-2020 U.S. Climate Normals · simple averages across each state's varying station-mapped-location cohort · data updated August 2026.

Delaware Climate in Context

U.S. land-mean temperature anomaly (NOAA NCEI) tracked against global anomaly (NASA GISTEMP). Paris Agreement 1.5°C and 2.0°C thresholds shown as reference lines. Delaware sits within this national warming envelope; individual station-mapped locations below show local readings against this trend.

United States (incl. Delaware) +0.11 °C/decade
Global (NASA GISTEMP) +0.11 °C/decade
Paris Agreement thresholds 1.5°C / 2.0°C

Sources: NOAA NCEI U.S. Climate Normals + NASA GISTEMP land-ocean.

Station-mapped locations in Delaware

7 locations with climate data

Scroll the table to browse every location, or use the complete CSV and JSON exports below.

Location	Avg Temp	High	Low	Precip	Snow	Comfort
Dover	57°F	66°F	48°F	47.6"	13.2"	78/100
Georgetown Sussex County	58°F	67°F	48°F	43.9"	N/A	80/100
Greenwood	55°F	66°F	45°F	46.3"	12.8"	78/100
Lewes	59°F	67°F	50°F	47.3"	10.5"	78/100
Newark Ag Farm	56°F	66°F	45°F	47.0"	N/A	80/100
Wilmington New Castle County	56°F	65°F	46°F	45.3"	20.2"	73/100
Wilmington Porter Rsch	53°F	62°F	45°F	50.3"	12.0"	58/100

Source: NOAA National Centers for Environmental Information U.S. Climate Normals v1.0.1 · 1991-2020 Accessed 2026-08-04 Statewide aggregates for Delaware computed as the simple average across its 7 station-mapped locations, each represented by its primary NOAA station (19 stations in the state network).

Climate Insight: Delaware

Delaware's climate profile is aggregated from 7 station-mapped locations and 19 NOAA weather stations reporting under the 1991–2020 U.S. Climate Normals program. The statewide average annual temperature sits at 56°F, which is the simple average across all tracked station-mapped locations rather than any single station's reading. Because Delaware spans multiple latitudes, elevations, and proximities to large water bodies, local conditions can differ from this headline number by wide margins; coastal, valley, and mountain stations often diverge by ten degrees or more even within a single month.

Precipitation and snowfall averages round out the climatological picture. Across Delaware, annual precipitation averages 46.8 inches, with typical seasonal snowfall near 13.7 inches statewide. These numbers combine rain, sleet, and snow water-equivalent and describe the thirty-year normal rather than any particular recent year. Readers evaluating a specific destination should drill into one of the 7 individual location profiles below; each station record varies with local geography, and the statewide figures here are averages that mask meaningful intrastate differences.

For planning purposes, the location table above is sorted to help you compare averages side-by-side: annual mean temperature, average daily high and low, precipitation totals, snowfall, and PlainClimate's climate comfort score. That 1–100 score combines temperature mildness, precipitation moderation, snowfall burden, and frost-free growing-season length from each location's NOAA normal. It is a climate-only comparison, not a NOAA or overall livability rating. Use it as a starting point, then open each location profile for the exact score inputs, monthly breakdowns, degree-day totals, frost dates, and separately reported humidity metrics.

Nationwide similar states

Other states closest to Delaware on two NOAA statewide-average axes (annual temperature and annual precipitation). Chip rows use distinct link sets.

Closest by average temperature

Nearest 50-state peers by avg_temp (56°F here).

Kentucky 56°F · 0.0°F off
Virginia 56°F · 0.4°F off
Maryland 56°F · 0.6°F off
Missouri 55°F · 1.1°F off

Closest by annual precipitation

Nearest peers by avg_precip (46.8" here), excluding temperature-peer codes.

New Hampshire 46.6" · 0.2" off
Maine 46.4" · 0.4" off
Alaska 47.6" · 0.8" off
West Virginia 47.6" · 0.8" off

National state rankings →

Frequently Asked Questions

What is the average temperature in Delaware? ▼

Delaware averages 56°F a year across NOAA's 1991-2020 Climate Normals, warmer than 68% of U.S. states. That is 3.1°F above the 53.1°F average across all 50 states.

Does the climate vary a lot within Delaware? ▼

Yes. Annual averages inside Delaware run from Wilmington Porter Rsch at 53°F to Lewes at 59°F -- a 5°F spread between the state's coldest and warmest measured station-mapped locations. A single statewide average can mask this kind of local variation.

Where does Delaware rank nationally for temperature? ▼

Delaware ranks #16 warmest and #35 coldest out of 50 U.S. states and territories with NOAA normals data, based on statewide average annual temperature.

What is the most comfortable station-mapped location in Delaware? ▼

Georgetown Sussex County scores the highest established comfort rating in Delaware at 80/100, a PlainClimate composite of annual temperature mildness, precipitation moderation, snowfall burden, and frost-free growing-season length.

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). For informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Compiled by PlainClimate, Climate normals data publisher

Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.