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The climate of Trier is a type of climate mixed between the continental climate and the oceanic climate. The city has cold temperatures in winter and the possibility of snow. The rains are well distributed throughout the year, although the slightly rainier months are the summer months between June and August and the winter months of November and December.
The average minimum winter temperatures are below zero in the months between December and February. The average maximum winter temperatures are in the order of 3 ° C or 5 ° C. The hottest months are the summer months but the average maximum summer temperatures are never higher than 24 ° C. The average minimum summer temperatures reach 13 ° C in July and August. The average annual temperature is 9.7 ° C.
The annual average rainfall is slightly less than 800 mm. Precipitation varies only slightly and is distributed evenly throughout the year. The rainy days are 127 per year, on average there are between 8 and 12 rainy days per month. The month with the least rainy days is August with 8.4 rainy days, while December is the month with the most rainy days, on average 12.3 rainy days. During the winter months snow is common, generally snow falls in the months between November and March.
WHEN TO GO TO TRIER
The most suitable months for a trip to Trier are between May and September.
THE CLIMATE OF TRIER: CLIMATE TABLE
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| TRIER (137 meters) | ||||
| Month | Average low (°C) | Average high (°C) | Precip. (mm) | Precip. days |
| January | -0,9 | 3,7 | 62,3 | 12,2 |
| February | -0,8 | 5,3 | 52,0 | 9,7 |
| March | 2,0 | 9,8 | 60,8 | 11,6 |
| April | 4,0 | 13,7 | 52,0 | 9,4 |
| May | 8,2 | 18,6 | 67,0 | 11,3 |
| June | 11,1 | 21,3 | 68,0 | 11,2 |
| July | 13,0 | 23,8 | 72,3 | 10,2 |
| August | 12,8 | 23,9 | 59,6 | 8,4 |
| September | 9,8 | 19,5 | 62,2 | 9,1 |
| October | 6,3 | 13,7 | 70,5 | 10,5 |
| November | 2,3 | 7,4 | 70,7 | 11,6 |
| December | 0,4 | 4,7 | 76,8 | 12,3 |
| YEAR | 5,7 | 13,8 | 774,2 | 127,5 |
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