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Hartford

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Hartford Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Hartford year round climate

  • Spring (March–May): Average 5.9–17.0°C, climate gradually warming from cold, higher rainfall, especially in March and April. Common activities: Outdoor walks, flower viewing. Suggested clothing: Jacket, comfortable long pants or jeans, and bring rain gear.
  • Summer (June–August): Average 21.3–25.2°C, hot and humid, with the most rainfall in July. Common activities: Swimming, picnics, outdoor sports. Suggested clothing: Light and breathable clothing, shorts, sandals, and apply sunscreen.
  • Autumn (September–November): Average 19.0–7.7°C, temperatures gradually decreasing, relatively less rainfall, but keep warm. Common activities: Leaf peeping, hiking. Suggested clothing: Light jacket, long-sleeved clothing, and comfortable shoes.
  • Winter (December–February): Average 2.7–1.7°C, cold with higher rainfall, pay attention to keeping warm. Common activities: Indoor activities, such as visiting museums and art galleries. Suggested clothing: Heavy coat, sweater, scarf, gloves, and hat.

Hartford climatological average

Annual average temperature: approx. 12°C / Annual rainfall: approx. 1344 mm / Summer humidity: 65%–75% / Rainiest month: July

Hartford monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
0.5°C
136
February
1.7°C
69.3
March
5.9°C
130
April
11.2°C
130.7
May
17°C
76.7
June
21.3°C
56.7
July
25.2°C
181.3
August
23.3°C
117
September
19°C
160
October
13.3°C
72.3
November
7.7°C
72.3
December
2.7°C
142

Hartford weather for the next seven days

12/15
Monday
Sunny
-1.4°C/-10.9°C
12/16
Tuesday
Sunny
0.4°C/-5.2°C
12/17
Wednesday
Overcast
5.1°C/-2.8°C
12/18
Thursday
Partly Cloudy
3.5°C/-2.4°C
12/19
Friday
Heavy rain
12.7°C/-1.5°C
12/20
Saturday
Partly Cloudy
0.5°C/-4°C
12/21
Sunday
Patchy rain nearby
4.5°C/0.4°C