Best year time to visit Rockville

General weather information about Rockville

Average annual temperature is 14 °C

Absolute maximum temperature: 37.3 °C

Absolute minimum temperature: -9.7 °C

Number of sunny days: 178

Number of rainy days: 187

Number of snow days:

Average annual precipitation: 1096 mm

Look at detailed online map of Rockville

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

Rockville air temperature forecast for each month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Absolute maximum temperature (°C) 17.5 22.8 25 29.9 28.5 33.2 37.3 33.9 36.9 27.4 23.4 15.5
Average daytime temperature (°C) 9.4 11.4 12.6 21.5 22.7 27.2 31.3 30 26.1 20.6 13 9.9
Average temperature (°C) 5.4 6 6.7 14.6 16.3 20.9 25.1 24.1 20.7 14.9 7.4 5.5
Average night temperature (°C) 2.1 1.7 1.9 9.1 10.5 15.5 20.5 19.4 16.2 10.5 3.2 2.1
Absolute minimum temperature (°C) -3.1 -9.7 -5.3 1.1 4.4 11 18.1 15.6 10.1 5.3 -5.6 -3.8

Rockville monthly weather indicators

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight maximum duration (h) 10.2 11.3 12.6 13.8 14.7 14.9 14.9 14.2 13.1 11.8 10.6 9.6
Daylight mean duration (h) 9.8 10.7 12 13.2 14.3 14.9 14.6 13.7 12.5 11.2 10.1 9.5
Daylight minimum duration (h) 9.5 10.2 11.3 12.6 13.8 14.7 14.2 13.1 11.8 10.6 9.7 9.4
Sunshine mean duration (h) 6 6.7 8.1 10.3 10.9 10.9 11.7 10.7 9.1 8.5 8.3 6.7
Precipitation (mm) 72 57 87 102 39 137 146 57 136 35 61 168
Sunny days 13 16 13 17 16 12 6 12 13 18 24 18
Rainy days 18 12 18 13 15 18 25 19 17 13 6 13

Rockville - weather forecast by months

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

Best time to visit Rockville:

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

  • July — 11.7(h)

The largest precipitation sum in Rockville is at

  • June — 137(mm)
  • July — 146(mm)
  • September — 136(mm)
  • December — 168(mm)

Weather forecast in the closest to Rockville admin centers