Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Gressoney-Saint-Jean features a subarctic climate (Dfc).Temperatures typically range between -7 °C (19 °F) and 13 °C (56 °F) through the year, but rarely can drop to -23 °C (-10 °F) or can rise to as high as 26 °C (78 °F).The average annual precipitation amounts to about 1576 mm (62.1 inches) and receives 196 rainy days on the 1 mm (0.04 inches) threshold annually.Gressoney-Saint-Jean enjoys an average of 3772 hours of sunshine throughout the year, and daylight varies from 8 hours 44 minutes to 15 hours 37 minutes per day.
The warmest months in Gressoney-Saint-Jean are June, July and August, with daily mean temperatures ranging from 11 to 13 °C (52 - 56 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -7 to -4 °C (19 - 24 °F) throughout the day. On average each year, Gressoney-Saint-Jean experiences 0 days above 25 °C (77.0 °F) and 181 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 4°C (39°F) | 10°C (50°F) | 11°C (53°F) | 14°C (57°F) | 18°C (65°F) | 26°C (78°F) | 22°C (72°F) | 24°C (76°F) | 19°C (67°F) | 16°C (61°F) | 11°C (53°F) | 5°C (42°F) |
Mean maximum | 1°C (35°F) | 7°C (44°F) | 8°C (47°F) | 11°C (53°F) | 16°C (60°F) | 20°C (68°F) | 21°C (70°F) | 22°C (72°F) | 18°C (64°F) | 14°C (57°F) | 8°C (46°F) | 3°C (37°F) |
Average high | -3°C (26°F) | -1°C (31°F) | 1°C (35°F) | 5°C (41°F) | 9°C (49°F) | 15°C (59°F) | 17°C (64°F) | 17°C (63°F) | 13°C (56°F) | 8°C (47°F) | 2°C (35°F) | -3°C (26°F) |
Daily mean | -7°C (19°F) | -4°C (24°F) | -3°C (28°F) | 1°C (34°F) | 6°C (42°F) | 11°C (52°F) | 13°C (56°F) | 13°C (55°F) | 9°C (48°F) | 4°C (40°F) | -2°C (29°F) | -7°C (20°F) |
Average low | -11°C (12°F) | -8°C (17°F) | -7°C (20°F) | -3°C (27°F) | 2°C (35°F) | 7°C (45°F) | 8°C (47°F) | 8°C (47°F) | 5°C (41°F) | 1°C (34°F) | -5°C (23°F) | -10°C (14°F) |
Mean minimum | -19°C (-2°F) | -16°C (4°F) | -16°C (3°F) | -11°C (13°F) | -4°C (24°F) | 2°C (36°F) | 4°C (40°F) | 3°C (37°F) | -1°C (30°F) | -4°C (26°F) | -13°C (8°F) | -18°C (-1°F) |
Minimum | -23°C (-10°F) | -21°C (-6°F) | -23°C (-9°F) | -15°C (4°F) | -9°C (16°F) | -1°C (30°F) | 3°C (37°F) | 2°C (36°F) | -4°C (26°F) | -8°C (18°F) | -19°C (-2°F) | -22°C (-7°F) |
Compare temperature, precipitation, sunshine, UV index in Gressoney-Saint-Jean, Aosta Valley, Italy with other places around the world.
Gressoney-Saint-Jean usually has the most precipitation in May, June and October, with an average of 19 rainy days and 178 mm (7.0 inches) of precipitation per month.The driest months in Gressoney-Saint-Jean are January, February and March. On average, 76 mm (3.0 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 86 (3.4) | 52 (2.1) | 90 (3.5) | 136 (5.3) | 173 (6.8) | 173 (6.8) | 157 (6.2) | 156 (6.1) | 99 (3.9) | 187 (7.4) | 162 (6.4) | 106 (4.2) |
Average precipitation days (≥ 1 mm) | 9 | 10 | 13 | 13 | 22 | 25 | 25 | 22 | 19 | 10 | 14 | 14 |
The sunniest months in Gressoney-Saint-Jean are June, July and August, when the sun shines an average of 13 hours 21 minutes a day.Least sunny months in Gressoney-Saint-Jean: January, November and December receive an average of 6 hours 50 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 188 | 244 | 315 | 344 | 382 | 406 | 427 | 395 | 333 | 292 | 218 | 222 |
Mean daily daylight hours | 9h 7m | 10h 22m | 11h 56m | 13h 33m | 14h 55m | 15h 37m | 15h 15m | 14h 1m | 12h 29m | 10h 53m | 9h 28m | 8h 44m |
Gressoney-Saint-Jean experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure.January, November and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Gressoney-Saint-Jean UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
UV Index (month maximum) | 2 | 4 | 7 | 8 | 9 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |