Saint-Dizier | |
|---|---|
Subprefecture and commune | |
The Notre-Dame church in Saint-Dizier | |
![]() Location of Saint-Dizier | |
| Coordinates: 48°38′18″N 4°56′59″E / 48.6383°N 4.9497°E | |
| Country | France |
| Region | Grand Est |
| Department | Haute-Marne |
| Arrondissement | Saint-Dizier |
| Canton | Saint-Dizier-1, 2 and 3 |
| Intercommunality | CA Grand Saint-Dizier, Der et Vallées |
| Government | |
| • Mayor (2020–2026) | Quentin Briere |
Area 1 | 47.69 km2 (18.41 sq mi) |
| Elevation | 146 m (479 ft) |
| Population (2023) | 22,858 |
| • Density | 479.3/km2 (1,241/sq mi) |
| Time zone | UTC+01:00 (CET) |
| • Summer (DST) | UTC+02:00 (CEST) |
| INSEE/Postal code | 52448 /52100 |
| 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries. | |
Saint-Dizier (French pronunciation: [sɛ̃.di.zje]) is a subprefecture of the Haute-Marne department in north-eastern France.
It has a population of about 23,000 and is a subprefecture of the department. Although Saint-Dizier is marginally the most populous commune in Haute-Marne, the préfecture (capital) resides in the somewhat smaller commune of Chaumont.

Located approximately 120 miles (193 km) east of Paris, halfway to Strasbourg, it is five miles from Western Europe's largest man-made lake, Lake Der-Chantecoq.
The climate in Saint-Dizier is oceanic according to the Köppen climate classification (Cfb code). However, far from any ocean or sea, Saint-Dizier experiences continental climate characteristics resulting in cold winters with freezing nights and cool days with temperatures staying in the single digits and warm to hot summers with frequent thunderstorms.
| Climate data for Saint-Dizier (1991–2020 normals, extremes 1921–present) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 17.7 (63.9) |
22.6 (72.7) |
27.1 (80.8) |
29.4 (84.9) |
33.1 (91.6) |
38.1 (100.6) |
41.4 (106.5) |
40.4 (104.7) |
35.5 (95.9) |
30.3 (86.5) |
23.4 (74.1) |
18.6 (65.5) |
41.4 (106.5) |
| Mean daily maximum °C (°F) | 6.5 (43.7) |
8.0 (46.4) |
12.3 (54.1) |
16.4 (61.5) |
20.2 (68.4) |
23.6 (74.5) |
26.0 (78.8) |
25.7 (78.3) |
21.3 (70.3) |
16.2 (61.2) |
10.4 (50.7) |
7.1 (44.8) |
16.1 (61.0) |
| Daily mean °C (°F) | 3.7 (38.7) |
4.4 (39.9) |
7.6 (45.7) |
10.8 (51.4) |
14.7 (58.5) |
18.1 (64.6) |
20.2 (68.4) |
19.9 (67.8) |
16.0 (60.8) |
12.1 (53.8) |
7.3 (45.1) |
4.4 (39.9) |
11.6 (52.9) |
| Mean daily minimum °C (°F) | 0.8 (33.4) |
0.8 (33.4) |
2.9 (37.2) |
5.3 (41.5) |
9.3 (48.7) |
12.5 (54.5) |
14.5 (58.1) |
14.2 (57.6) |
10.7 (51.3) |
7.9 (46.2) |
4.1 (39.4) |
1.7 (35.1) |
7.1 (44.8) |
| Record low °C (°F) | −20.5 (−4.9) |
−22.5 (−8.5) |
−13.6 (7.5) |
−6.0 (21.2) |
−3.0 (26.6) |
2.2 (36.0) |
3.2 (37.8) |
3.7 (38.7) |
−0.2 (31.6) |
−5.1 (22.8) |
−11.7 (10.9) |
−17.3 (0.9) |
−22.5 (−8.5) |
| Average precipitation mm (inches) | 63.2 (2.49) |
61.2 (2.41) |
59.6 (2.35) |
54.6 (2.15) |
68.3 (2.69) |
57.5 (2.26) |
69.6 (2.74) |
65.1 (2.56) |
70.9 (2.79) |
75.4 (2.97) |
70.6 (2.78) |
78.5 (3.09) |
794.5 (31.28) |
| Average precipitation days (≥ 1.0 mm) | 11.1 | 10.9 | 10.2 | 9.5 | 10.4 | 9.2 | 9.4 | 8.8 | 9.0 | 11.4 | 12.1 | 13.1 | 125.2 |
| Average snowy days | 6.3 | 5.2 | 3.6 | 1.4 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.5 | 4.5 | 23.6 |
| Average relative humidity (%) | 86 | 81 | 78 | 73 | 74 | 75 | 74 | 77 | 81 | 85 | 87 | 86 | 79.8 |
| Mean monthly sunshine hours | 61.4 | 81.4 | 143.0 | 183.2 | 216.4 | 227.8 | 234.9 | 224.2 | 173.0 | 115.8 | 62.5 | 52.6 | 1,776.2 |
| Source 1: Meteociel | |||||||||||||
| Source 2: Infoclimat.fr (humidity and snowy days, 1961–1990) | |||||||||||||

Named after an unknown saint (possibly Desiderius of Fontenelle), the town originated as a fortified settlement around a thirteenth-century château, eventually becoming a royal fortress to guard the French kingdom's eastern approaches. The town was besieged and captured by Charles V, Holy Roman Emperor, in the summer of 1544. A fire in 1775 destroyed two-thirds of the town center. The Hôtel de Ville was completed in 1827.
The château was owned by the Orléans family until the French Revolution, was a base for German troops during World War II, and currently houses the Municipal Museum.
Historical population | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Source: EHESS and INSEE (1968-2023) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Saint-Dizier is the birthplace of