Best year time to visit Frederick County

General weather information about Frederick County

Average annual temperature is 13.8 °C

Absolute maximum temperature: 36.8 °C

Absolute minimum temperature: -10.0 °C

Number of sunny days: 183 days

Number of rainy days: 179 days

Number of snow days: 3 days

Look at detailed online map of Frederick County

* Weather data for Frederick County United States is based on climate observations for 2026 year

Frederick County air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	16.1	22.0	23.9	30.7	28.8	34.2	36.8	33.9	36.4	27.6	23.3	16.6
Average daytime temperature (°C)	8.9	11.1	12.1	21.2	23.2	27.7	32.1	30.2	26.3	20.4	12.7	9.6
Average temperature (°C)	4.9	5.5	6.2	14.3	16.4	21.0	25.5	24.1	20.5	14.7	6.9	5.1
Average night temperature (°C)	1.8	1.0	1.3	8.4	10.3	15.3	20.2	19.0	15.6	10.1	2.3	1.5
Absolute minimum temperature (°C)	-2.8	-10.0	-5.8	1.4	4.9	11.2	17.1	13.4	9.9	3.6	-5.4	-4.9

Frederick County monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	10.0	11.0	12.0	13.0	14.0	14.0	14.0	14.0	13.0	11.0	10.0	9.0
Daylight mean duration (h)	9.7	10.7	12.0	13.2	14.3	14.9	14.6	13.7	12.5	11.2	10.0	9.4
Daylight minimum duration (h)	9.0	10.0	11.0	12.0	13.0	14.0	14.0	13.0	11.0	10.0	9.0	9.0
Sunshine mean duration (h)	4.9	7.0	7.4	9.4	10.4	10.6	11.6	10.8	8.5	8.1	7.7	4.9
Precipitation (mm)	65	53	77	119	37	133	118	52	119	45	63	131
Sunny days	12	17	14	17	17	13	5	11	16	18	23	20
Rainy days	19	10	16	13	14	17	26	20	14	13	6	11
Snow days	0	1	1	0	0	0	0	0	0	0	1	0

Frederick County - weather forecast by months

Frederick County weather in january Frederick County weather in february Frederick County weather in march Frederick County weather in april Frederick County weather in may Frederick County weather in june Frederick County weather in july Frederick County weather in august Frederick County weather in september Frederick County weather in october Frederick County weather in november Frederick County weather in december

Best time to visit Frederick County:

The best time to visit Frederick County during the most sunny months:

June — 10.6(h)
July — 11.6(h)
August — 10.8(h)

The largest precipitation sum in Frederick County is at

April — 119(mm)

June — 133(mm)

July — 118(mm)

September — 119(mm)

December — 131(mm)

Weather forecast in the closest to Frederick County admin centers