Annual mean 11°C · wettest around February · prevailing wind W
Warmest
27.9 °C
Coldest
0.8 °C
Wettest
29%
Windiest
4.9 m/s
Prevailing
W
3.9 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Hartford over the whole year is 11°C. July is the hottest month, with highs of about 28°C; January is the coldest, with lows of about -3°C. The rainy (wet) season in Hartford runs from January to February, peaking in February with a 27% chance of rain on a given day. The dry season is March to December; June is the driest month, at 8%. Winds in Hartford are highest in March, averaging 3.7 m/s (13 km/h), and lightest in August, at 2.3 m/s (8 km/h). The prevailing wind is from the W. The clearest skies in Hartford come in November, when the sky is typically 44% covered; May is the cloudiest month, at 56%.
Month by month Hartford climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
1°C
-3°C
-4°C
24%
55%
3.3 m/s
0
0
5
February
3°C
-2°C
-3°C
27%
51%
3.2 m/s
1
0
11
March
7°C
1°C
2°C
16%
51%
3.7 m/s
3
0
25
April
13°C
6°C
8°C
14%
56%
3.5 m/s
17
1
53
May
19°C
12°C
16°C
12%
56%
3.0 m/s
54
11
73
June
24°C
17°C
23°C
8%
48%
2.7 m/s
71
35
48
July
28°C
20°C
28°C
10%
46%
2.4 m/s
43
62
15
August
27°C
19°C
27°C
9%
46%
2.3 m/s
56
54
24
September
22°C
15°C
21°C
11%
48%
2.4 m/s
72
25
58
October
17°C
9°C
14°C
12%
51%
2.6 m/s
45
5
74
November
9°C
3°C
5°C
10%
44%
2.9 m/s
11
0
36
December
4°C
-1°C
-1°C
14%
53%
2.9 m/s
0
0
12
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Hartford weather by season
Year round, Hartford has days of about 1°C at their warmest in January, its coolest month, and 28°C in July, its warmest; the coolest hours of the day run from -3°C to 20°C through the year, and the average temperature over the year is 11°C around the clock. Rain is most likely around February and least likely around June. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Hartford weather in winterDecember to February
High 3°CLow -2°CRain 22%
Winter in Hartford has typical daily highs of about 3°C and lows of about -2°C, with a 22% chance of rain on a given day.
Hartford weather in springMarch to May
High 13°CLow 6°CRain 14%
Spring in Hartford has typical daily highs of about 13°C and lows of about 6°C, with a 14% chance of rain on a given day.
Hartford weather in summerJune to August
High 26°CLow 19°CRain 9%
Summer in Hartford has typical daily highs of about 26°C and lows of about 19°C, with a 9% chance of rain on a given day.
Hartford weather in autumnSeptember to November
High 16°CLow 9°CRain 11%
Autumn in Hartford has typical daily highs of about 16°C and lows of about 9°C, with a 11% chance of rain on a given day.
When is the rainy season in Hartford?
The rainy (wet) season in Hartford runs from January to February, peaking in February with a 27% chance of rain on a given day. The dry season is March to December; June is the driest month, at 8%.
What time of year is Hartford windiest?
Winds in Hartford are highest in March, averaging 3.7 m/s (13 km/h), and lightest in August, at 2.3 m/s (8 km/h). The prevailing wind is from the W.
What is the average temperature in Hartford year round?
The average temperature in Hartford over the whole year is 11°C. July is the hottest month, with highs of about 28°C; January is the coldest, with lows of about -3°C.