Delaware (OH) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Delaware.
Climate overview of Delaware
The climate in Delaware, Ohio, United States of America, is marked by large temperature swings across the seasons, ranging from 28°C (82°F) in July to 1°C (34°F) in February.
Rain/snowfall is high, totalling around 1066 mm (42 in) per year. June is the wettest month and January the driest. The most sunshine falls in July, with an average of 8.7 hours of daily sunshine.
Delaware Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Delaware — and find the best time to visit.
Monthly Temperature in Delaware
In Delaware, temperatures differ significantly between summer and winter months. Average maximum daytime temperatures range from a comfortable 28°C (82°F) in July, the warmest time of the year, to a very cold 1°C (34°F) during cooler months like February.
At night, you can expect temperatures ranging from 17°C (63°F) in July to around -8°C (18°F) during February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Delaware
Delaware experiences significant rain/snowfall throughout the year, averaging 1066 mm (42 in) of precipitation annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, June it receives high rainfall, averaging 143 mm (5.6 in) of precipitation, recorded across 13 rainy days. In contrast, the driest month January brings less snow/rainfall, with 61 mm (2.4 in) over 14 snowy/rainy days. For more details, please visit our Delaware Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Delaware
Seasonal changes in sunshine hours are quite dramatic in Delaware. While July receives considerable daily sunshine with up to 8.7 hours, December marks the darkest time of the year, where sunshine is scarce with only 2.8 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Delaware by Month
The relative humidity is high throughout the year in Delaware.
The city experiences its highest humidity in December, reaching 74%. In April, the humidity drops to its lowest level at 62%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Delaware
Frequently asked questions about the climate in Delaware
What is the best time to visit Delaware?
August and September typically offer the most optimal weather in Delaware. In contrast, January, February, March and December tend to have less optimal conditions.
What temperatures can I expect in Delaware?
Daytime highs range from 1°C (34°F) in February to 28°C (82°F) in July. Nighttime lows range from -8°C (18°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Delaware get?
Annual rainfall is around 1066 mm (42 in). June is the wettest month with 143 mm (5.6 in), while January is the driest with 61 mm (2.4 in).
How sunny is Delaware?
Delaware receives around 2,178 hours of sunshine per year. July is the sunniest month with 260 hours, while December is the cloudiest with just 84 hours. Overall, Delaware enjoys abundant sunshine.
Delaware 3-Day Forecast
Delaware (OH) 3-Day Forecast
Delaware on the map
Delaware is highlighted — select any city to see its climate.
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