Best year time to visit Gretna

General weather information about Gretna

Average annual temperature is 11.1 °C

Absolute maximum temperature: 32.5 °C

Absolute minimum temperature: -23.4 °C

Number of sunny days: 147 days

Number of rainy days: 210 days

Number of snow days: 8 days

* Weather data for Gretna 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)	15.5	15.3	16.4	30.2	29.7	32.4	31.8	29.2	32.5	27.3	19.1	14.9
Average daytime temperature (°C)	6.1	6.4	8.7	17.5	21.3	24.9	28.3	25.8	22.9	17.9	9.2	7.5
Average temperature (°C)	2.3	0.8	3.1	10.8	14.4	18.8	23.0	20.8	18.1	13.1	4.1	3.2
Average night temperature (°C)	-0.9	-3.7	-1.7	5.5	8.1	13.8	18.8	16.7	14.3	9.3	0.3	0.3
Absolute minimum temperature (°C)	-6.2	-23.4	-10.1	-3.2	3.2	8.9	14.0	12.9	7.7	2.4	-4.6	-7.2

The best time to visit Gretna during the most sunny months:

The largest precipitation sum in Gretna is at

July — 215(mm)

August — 189(mm)

September — 246(mm)

December — 219(mm)

When is the best time to visit Gretna?

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

What is the weather like in Gretna?

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

How many sunny days does Gretna have?

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