Delaware Climate and Average Weather
Climate of Delaware: average temperatures, rainfall and seasons month by month.
Climate in Delaware month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 40° | 26° | 3,5 in | ★★☆☆☆ |
| February | 44° | 29° | 2,8 in | ★★☆☆☆ |
| March | 59° | 40° | 4,8 in | ★★★☆☆ |
| April | 66° | 48° | 3,6 in | ★★★★☆ |
| May | 73° | 57° | 4,3 in | ★★★★☆ |
| June | 84° | 66° | 2,9 in | ★★★★☆ |
| July | 87° | 71° | 6,1 in | ★★★★☆ |
| August | 83° | 68° | 3,0 in | ★★★★☆ |
| September | 78° | 64° | 4,2 in | ★★★★☆ |
| October | 69° | 52° | 1,5 in | ★★★★☆ |
| November | 57° | 42° | 1,9 in | ★★★★☆ |
| December | 46° | 33° | 4,4 in | ★★☆☆☆ |
Climate type: Continental. Source: Open-Meteo archive (ERA5).
Recent extremes in Delaware
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Delaware compares with nearby places
Annual averages, and the difference against Delaware.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Philadelphia International Airport | 52 mi | 56°F | 33°F cooler | 44 in |
| Maryland | 53 mi | 57°F | about the same | 50 in |
| ZIP Code 19103 | 58 mi | 56°F | 33°F cooler | 43 in |
| Philadelphia County | 58 mi | 56°F | 33°F cooler | 43 in |
| Philadelphia | 58 mi | 56°F | 33°F cooler | 43 in |
Best time to visit Delaware
Go in June, August and October. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and December - expect the least comfortable mix of heat, cold or rain.
What this means for Delaware
Today is cooler than average for August. The forecast high of 74°F is 9.2°F below the 83°F typical for this month.
A 67% chance means rain is expected over most of the area. Plan indoor alternatives.
Wet roads are likely; braking distances roughly double in heavy rain.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 78°F.
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- A packable rain shell - 3 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
Summary
Delaware is a state in United States. Delaware is a US state with its capital at Dover. It has a population of about 1 million. The capital is Dover.
Right now it is 69°F (21°C) in Delaware with overcast. It feels like 74°F. Today runs from 69°F to 74°F. Chance of precipitation is 67%. Sightseeing conditions score 8.1/10 - good conditions.
The best time to visit Delaware is June, August and October. The climate is continental. January, February and December tend to be the least comfortable months. July is the warmest month with average highs near 87°F, while January is the coldest with lows near 26°F.
The closest major airport is Philadelphia International Airport (PHL), about 52 mi away. Nearby highlights include National Mall, Statue of Liberty (UNESCO World Heritage Site), Statue of Liberty and Hudson River.
In plain terms. Today is cooler than average for August. The forecast high of 74°F is 9.2°F below the 83°F typical for this month. The best window to be outside is roughly 3 PM to 6 PM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Delaware today at 9.7/10. Wet roads are likely; braking distances roughly double in heavy rain.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Delaware
| Type | State |
|---|---|
| Country | United States |
| Continent | North America |
| Coordinates | 39°9′29.5″N 75°31′27.8″W (39.1582, -75.5244) |
| Capital | Dover |
| Population | 1.030.000 |
| Area | 2.489 sq mi |
| Abbreviation | DE |
| Time zone | America/New_York |
| Local time | 4:28 AM (UTC-04:00) |
| Best months | June, August and October |
| Climate | Continental |
Weather map for Delaware
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Explore Delaware
Every topic we hold for this place, and the same topic for the places around it.
Climate for related places
Frequently asked questions
Where is Delaware?
Delaware is a state in United States. Its coordinates are 39.1582, -75.5244. It lies in North America.
What is the weather like in Delaware right now?
It is currently 69°F (21°C) with overcast. Humidity is 91% and wind is 3 mph.
When is the best time to visit Delaware?
June, August and October offer the most comfortable conditions in Delaware, which has a continental climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Delaware in?
Delaware observes America/New_York (UTC-04:00). The local time is 4:28 AM.
How many people live in Delaware?
Delaware has a population of approximately 1 million.
What is the nearest airport to Delaware?
The closest airports are Philadelphia International Airport (PHL), 52 mi away, Ronald Reagan Washington National Airport (DCA), 84 mi away and Washington Dulles International Airport (IAD), 105 mi away.
What are the top things to do in Delaware?
Popular options include National Mall, Statue of Liberty (UNESCO World Heritage Site), Statue of Liberty, Hudson River, Empire State Building and Times Square.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-states) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 22, 2026 at 4:28 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
