8 to 32°C
temperature
2978 hours
sunshine per day
592 mm
rain
214 days
dry
145 days
rain
6 days
snow

Climate of Cornwall

Cornwall has a oceanic climate. There is rainfall during all months of the year. The average annual temperature for Cornwall is 21° degrees and there is about 594 mm of rain in a year. It is dry for 197 days a year with an average humidity of 74% and an UV-index of 4.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between 8°C and 32°C
  • Night:the average nighttime temperature is between -1°C and 21°C
  • Rain: it rains 145 days and there is a total of approximately 592 mm rainfall
  • Snow: it snows an average of 6 days per year
  • Sun hours: throughout the year there are 2978 sun hours
Maximum temperature: between 8°C and 32°C
Warmest month: 32°C in July
Coldest month: 8°C in January
Night temperature: between -1°C and 21°C
Dry days: 214 days
Days with rain: 145 days
Days with snow: 6 days
Total rain sum: 592 mm
Hours of sunshine: 2978 hours

Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Cornwall.

Precipitation graph

This graph shows the average amount of rainfall per month for Cornwall.

Climate table of Cornwall

In this climate table you can see at a glance what the average weather per month is for Cornwall. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Cornwall might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°C) 8 11 14 21 26 30 32 31 28 21 15 10
Night temp. (°C) -1 1 4 10 15 19 21 20 17 11 5 2
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (mm) 48 52 60 44 56 37 47 46 50 42 57 53
Days with rain 9 10 14 13 17 13 16 14 12 9 8 10
Days with snow 2 2 1 - - - - - - - - 1
Dry days 20 16 16 17 14 17 15 17 18 22 22 20
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 5 6 7 10 10 11 11 11 9 6 6 5
Wind force (Bft) 2 2 3 3 2 2 2 2 2 2 2 2
UV-index 2 3 4 5 6 6 6 6 5 4 3 2

Best time to visit Cornwall

The best time to visit Cornwall in the state of North Carolina is from April through October. In this period you have a hot temperature and little precipitation. The highest average temperature in Cornwall is 32°C in July and the lowest is 8°C in January.

Climate of Cornwall by month

What is the average climate in a given month for Cornwall? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

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