L’Osservatorio Meteorologico di San Marcellino - Napoli centro: i dati dell’anno 2023.

The analysis of all meteorological parameters of the year 2023 shows that: (a) The monthly mean pressure ranges between 1014.1 hPa of April and 1025.4 hPa of February, with an annual mean of 1017.0 hPa, with a daily absolute minimum of 992.2 hPa measured on 25 November at 06:50 and with a daily absolute maximum of 1037.0 hPa measured on 17 December at 09:50. (b) The monthly mean air temperature ranges from 11.1°C of February and 28.5°C of July, with an annual mean of 19.0°C, with a daily absolute minimum of 3.3°C measured on 8 February at 05:50 and with a daily absolute maximum of 37.3°C measured on 22 August at 15:20. (c) The monthly mean relative humidity ranges from 62.2% of September and of 74.2% of December, with an annual mean of 69.9%, with a daily absolute minimum of 24% measured on 17 July at 20:20 and with a daily absolute maximum of 94% measured on 5 December at 07:50. (d) The mean monthly global solar radiation ranges between 168.4 W/m² of December and 475.1 W/m² of July, with an annual mean of 321.6 W/m² and with a daily absolute maximum of 1248.0 W/m² measured on 22 May at 13:00. (e) The mean the monthly UV Index ranges from 0.9 of December to 3.9 of July, with an annual average of 2.3 and with a daily absolute maximum of 8.5 measured on 6 August at 13.00. (f) The monthly mean wind intensity ranges between 1.8 m/s of June and 2.5 m/s of November, with an annual mean of 2.1 m/s and with most intense daily gust of 23.2 m/s measured on 3 November at 03:00. (g) The wind direction shows a mode from the North-East in January, from North in February, November, December, from South in June and from South-West in March, April, May, June, July, August, September. (h) The monthly cumulative rainfall ranges from 1.0 mm of July to 158.8 mm of November, with a cumulative annual value of 823.4 mm and with a daily absolute maximum of 44.4 mm measured on 23 October.