Best year time to visit Gretna

General weather information about Gretna

Average annual temperature is 22.2 °C

Absolute maximum temperature: 38.7 °C

Absolute minimum temperature: 1.9 °C

Number of sunny days: 129

Number of rainy days: 236

Number of snow days:

Average annual precipitation: 1129 mm

Look at detailed online map of Gretna

* Weather data for Gretna United States is based on climate observations for 2023 year

Gretna air temperature forecast for each month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Absolute maximum temperature (°C) 25.6 27.5 28.6 29.1 33.1 36.8 36.7 38.7 34.3 32.2 28.1 25.4
Average daytime temperature (°C) 19.9 21.7 23.7 24.9 29.7 32.7 33.5 36.3 32 27.1 20.9 17.7
Average temperature (°C) 15.4 16.9 19 20.7 25 27.9 29.3 31.2 27.7 22.2 16.7 13.8
Average night temperature (°C) 11.8 13.6 15.6 17.3 21.1 23.9 25.8 27.1 24.1 18.4 13.5 10.6
Absolute minimum temperature (°C) 1.9 4.6 3 11.7 15.2 21.1 24.3 24.9 20.9 11.2 6.3 3.3

Gretna monthly weather indicators

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight maximum duration (h) 10.8 11.5 12.5 13.3 13.9 14.1 14 13.6 12.8 11.9 11 10.4
Daylight mean duration (h) 10.5 11.1 12 12.9 13.7 14 13.9 13.2 12.4 11.5 10.7 10.3
Daylight minimum duration (h) 10.3 10.8 11.6 12.5 13.3 13.9 13.6 12.8 11.9 11 10.4 10.2
Sunshine mean duration (h) 7.3 8.5 9.5 9 11 11.5 11.2 11.9 11.1 9.8 7.5 8
Precipitation (mm) 79 90 56 142 80 127 124 27 67 70 125 143
Sunny days 13 10 11 8 6 4 6 13 7 16 15 20
Rainy days 18 18 20 22 25 26 25 18 23 15 15 11

Gretna - weather forecast by months

January February March April May June July August September October November December

Best time to visit Gretna:

The largest precipitation sum in Gretna is at

  • April — 142(mm)
  • June — 127(mm)
  • July — 124(mm)
  • November — 125(mm)
  • December — 143(mm)

Weather forecast in the closest to Gretna admin centers