Best year time to visit Fort Jefferson

General weather information about Fort Jefferson

Average annual temperature is 12.2 °C

Absolute maximum temperature: 33.1 °C

Absolute minimum temperature: -12.1 °C

Number of sunny days: 180 days

Number of rainy days: 172 days

Number of snow days: 13 days

* Weather data for Fort Jefferson United States is based on climate observations for 2026 year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	17.3	19.3	20.9	26.0	30.5	31.9	33.1	31.5	31.4	28.9	23.9	15.2
Average daytime temperature (°C)	5.6	10.1	10.3	17.1	22.2	26.1	28.3	26.6	25.1	18.3	11.7	8.2
Average temperature (°C)	2.0	3.6	4.4	10.8	16.1	20.4	23.3	21.7	19.4	13.4	6.0	4.1
Average night temperature (°C)	-1.0	-0.7	0.1	5.5	10.5	14.8	18.8	17.2	14.3	9.3	2.1	1.2
Absolute minimum temperature (°C)	-10.4	-12.1	-8.5	-0.7	3.0	9.9	15.2	11.1	9.3	-3.6	-9.1	-6.4

The best time to visit Fort Jefferson during the most sunny months:

The largest precipitation sum in Fort Jefferson is at

January — 126(mm)

March — 151(mm)

July — 139(mm)

August — 131(mm)

When is the best time to visit Fort Jefferson?

The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Fort Jefferson.

What is the weather like in Fort Jefferson?

See average temperature, rainfall and daylight hours for Fort Jefferson by month in the table above.

How many sunny days does Fort Jefferson have?

The monthly weather statistics above show sunshine and rainfall patterns for Fort Jefferson throughout the year.