Rolle Pass
{{Short description|High mountain pass in Trentino, Italy}}
{{Infobox mountain pass
| name = Rolle Pass
| photo = Trento rolle.jpg
| photo_caption = Chapel at Rolle Pass, with Cimon della Pala
| elevation_m = 1989
| elevation_ref =
| traversed =
| map = Alps
| map_caption = Location of Rolle Pass
| map_size =
| label = Rolle Pass
| coords = {{coord|46|17|47|N|11|47|13|E|type:pass_region:IT|format=dms|display=inline,title}}
| range = Dolomites
| topo =
}}
The Rolle Pass ({{langx|it|Passo Rolle}}) (1989 m) is a mountain pass in Trentino in Italy which can be reached by motor vehicles.
It connects the Fiemme and Primiero valleys, and the communities of Predazzo, San Martino di Castrozza and Fiera di Primiero. The pass road was built between 1863 and 1874, when the area still belonged to Austria-Hungary. The pass lies within the Parco Naturale Paneveggio - Pale di San Martino.
Climate
Due to altitude, the climate is subarctic (Köppen: Dfc), similar to other high mountains in the Alps. The annual average temperature is {{Convert|3.2|C}}, the hottest month in July is {{Convert|11.8|C}}, and the coldest month is {{Convert|-4.4|C}} in February. The annual precipitation is {{Convert|1004.11|mm|2}}, of which October is the wettest with {{Convert|142.23|mm|2}}, while February is the driest with only {{Convert|29.05|mm|2}}.
{{Weather box
|location= Rolle Pass, elevation: {{convert|2004|m|abbr=on|disp=or}}, 1991-2020 normals, extremes 1949–present
|metric first= Yes
|single line= Yes
|collapsed = Yes
|Jan record high C = 10.6
|Feb record high C = 12.0
|Mar record high C = 12.6
|Apr record high C = 16.4
|May record high C = 21.0
|Jun record high C = 23.2
|Jul record high C = 25.4
|Aug record high C = 24.4
|Sep record high C = 21.4
|Oct record high C = 19.2
|Nov record high C = 15.2
|Dec record high C = 12.5
|year record high C = 25.4
|Jan high C = -1.3
|Feb high C = -1.1
|Mar high C = 1.6
|Apr high C = 4.7
|May high C = 9.3
|Jun high C = 13.9
|Jul high C = 16.2
|Aug high C = 15.9
|Sep high C = 11.4
|Oct high C = 7.4
|Nov high C = 2.8
|Dec high C = -0.3
|year high C = 6.7
|Jan mean C = -3.9
|Feb mean C = -4.4
|Mar mean C = -2.1
|Apr mean C = 0.9
|May mean C = 5.3
|Jun mean C = 9.5
|Jul mean C = 11.8
|Aug mean C = 11.7
|Sep mean C = 7.8
|Oct mean C = 4.3
|Nov mean C = 0.0
|Dec mean C = -2.9
|year mean C = 3.2
|Jan low C = -6.8
|Feb low C = -7.7
|Mar low C = -5.2
|Apr low C = -2.1
|May low C = 2.1
|Jun low C = 6.0
|Jul low C = 8.2
|Aug low C = 8.4
|Sep low C = 4.9
|Oct low C = 1.7
|Nov low C = -2.5
|Dec low C = -5.7
|year low C = 0.1
|Jan record low C = -23.4
|Feb record low C = -24.2
|Mar record low C = -24.8
|Apr record low C = -17.0
|May record low C = -11.1
|Jun record low C = -6.2
|Jul record low C = -2.2
|Aug record low C = -2.8
|Sep record low C = -5.6
|Oct record low C = -11.0
|Nov record low C = -17.2
|Dec record low C = -19.0
|year record low C = -24.8
|precipitation colour = green
|Jan precipitation mm = 34.4
|Feb precipitation mm = 29.1
|Mar precipitation mm = 42.9
|Apr precipitation mm = 68.7
|May precipitation mm = 99.5
|Jun precipitation mm = 106.5
|Jul precipitation mm = 111.6
|Aug precipitation mm = 131.6
|Sep precipitation mm = 104.8
|Oct precipitation mm = 142.2
|Nov precipitation mm = 90.5
|Dec precipitation mm = 42.5
|year precipitation mm = 1004.1
|unit precipitation days = 1.0 mm
|Jan precipitation days = 4.56
|Feb precipitation days = 5.17
|Mar precipitation days = 6.20
|Apr precipitation days = 9.80
|May precipitation days = 11.50
|Jun precipitation days = 11.84
|Jul precipitation days = 12.16
|Aug precipitation days = 12.26
|Sep precipitation days = 9.19
|Oct precipitation days = 8.39
|Nov precipitation days = 6.89
|Dec precipitation days = 4.88
|year precipitation days = 102.84
|humidity colour = green
|Jan humidity = 61.1
|Feb humidity = 63.0
|Mar humidity = 67.3
|Apr humidity = 70.3
|May humidity = 71.2
|Jun humidity = 71.0
|Jul humidity = 71.3
|Aug humidity = 72.8
|Sep humidity = 73.5
|Oct humidity = 71.4
|Nov humidity = 67.2
|Dec humidity = 60.9
|year humidity = 68.4
|Jan dew point C = -11.7
|Feb dew point C = -11.6
|Mar dew point C = -8.0
|Apr dew point C = -4.2
|May dew point C = 0.3
|Jun dew point C = 4.2
|Jul dew point C = 6.5
|Aug dew point C = 6.8
|Sep dew point C = 3.3
|Oct dew point C = -1.2
|Nov dew point C = -6.4
|Dec dew point C = -11.2
|year dew point C = -2.8
|source 1 = NOAA{{cite web
|url = https://www.nodc.noaa.gov/archive/arc0216/0253808/1.1/data/0-data/Region-6-WMO-Normals-9120/Italy/CSV/PassoRolle_16021.csv
|title = Passo Rolle Climate Normals 1991-2020
|publisher = National Oceanic and Atmospheric Administration
|access-date = August 29, 2023
|archive-url = https://web.archive.org/web/20230831000121/https://www.nodc.noaa.gov/archive/arc0216/0253808/1.1/data/0-data/Region-6-WMO-Normals-9120/Italy/CSV/PassoRolle_16021.csv
|archive-date = 2023-08-31}}
|source 2 = Temperature estreme in Passo Rolle{{cite web
|url = http://climaintoscana.altervista.org/italia/stazioni-wmo/passo-rolle/
|language = it
|title = Temperature estreme in Passo Rolle
|publisher = Temperature estreme in Toscana
|access-date = August 31, 2023
|archive-url = https://web.archive.org/web/20230831001444/http://climaintoscana.altervista.org/italia/stazioni-wmo/passo-rolle/
|archive-date = 2023-08-31}}
}}