Frederick (MD) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Frederick.
Climate overview of Frederick
Frederick, Maryland, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 31°C (88°F) in July, while winters cool to 5°C (41°F) in January.
The city has a wet climate, receiving around 1123 mm (44 in) of rain/snowfall per year. Despite the high annual total, it has very warm summers and cold winters. October is the wettest month. The most sunshine falls in June, with an average of 9.4 hours of daily sunshine.
Frederick Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Frederick - and find the best time to visit.
Monthly Temperature in Frederick
Depending on the time of the year, temperatures range from very warm to chilly in Frederick. On average, daytime temperatures range from a very warm 31°C (88°F) in July to a chilly 5°C (41°F) in January.
Nighttime temperatures range from 19°C (66°F) in July to -5°C (23°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Frederick
Frederick has a relatively rain/snowy climate with high precipitation levels, averaging 1123 mm (44 in) of rain/snowfall annually. The amount of precipitation varies moderately throughout the year. The wettest month, October, sees around 128 mm (5 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, February, still receives a respectable 68 mm (2.7 in) of snow/rainfall. For more details, please visit our Frederick 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 Frederick
In Frederick, summer days are longer and more sunny, with daily sunshine hours peaking at 9.4 hours in June. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.3 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Frederick by Month
The relative humidity is high throughout the year in Frederick.
The city experiences its highest humidity in August, reaching 69%. In March, the humidity drops to its lowest level at 58%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Frederick
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: April, May, June, September and October
- Warmest weather: July and August
- Most sunshine: June and July
- Seasonal pattern: Very warm summers and cold winters
- Coldest conditions: January, with freezing nights around -5°C (23°F).
Frequently asked questions about the climate in Frederick
What is the best time to visit Frederick?
April, May, June, September and October typically offer the most optimal weather in Frederick. In contrast, January, February and December tend to have less optimal conditions. Frederick has very warm summers and cold winters.
What temperatures can I expect in Frederick?
Daytime highs range from 5°C (41°F) in January to 31°C (88°F) in July. Nighttime lows range from -5°C (23°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Frederick get?
Annual rainfall is around 1123 mm (44 in). October is the wettest month with 128 mm (5 in), while February is the driest with 68 mm (2.7 in).
How sunny is Frederick?
Frederick receives around 2,520 hours of sunshine per year. June is the sunniest month with 282 hours, while December is the cloudiest with just 130 hours. Overall, Frederick enjoys abundant sunshine.
Frederick 3-Day Forecast
Frederick on the map
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