Annual mean 11°C · wettest around December · prevailing wind SW
Warmest
21.2 °C
Coldest
5.2 °C
Wettest
23%
Windiest
5.8 m/s
Prevailing
SW
4.8 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
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 Northampton over the whole year is 11°C. July is the hottest month, with highs of about 21°C; January is the coldest, with lows of about 3°C. Northampton has no sharply defined rainy season: the chance of rain on a given day runs from 12% in April, the driest month, to 20% in December, the wettest. Winds in Northampton are highest in February, averaging 4.7 m/s (17 km/h), and lightest in July, at 3.6 m/s (13 km/h). The prevailing wind is from the SW. The clearest skies in Northampton come in July, when the sky is typically 56% covered; December is the cloudiest month, at 70%.
Month by month Northampton 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
6°C
3°C
1°C
17%
65%
4.1 m/s
0
0
11
February
8°C
4°C
2°C
19%
64%
4.7 m/s
0
0
20
March
9°C
5°C
4°C
18%
65%
4.3 m/s
1
0
33
April
12°C
6°C
8°C
12%
56%
3.9 m/s
9
0
54
May
16°C
10°C
12°C
14%
57%
3.8 m/s
31
0
78
June
19°C
13°C
16°C
14%
58%
3.7 m/s
57
8
78
July
21°C
15°C
18°C
13%
56%
3.6 m/s
73
11
75
August
20°C
14°C
18°C
12%
56%
3.7 m/s
72
8
78
September
18°C
12°C
15°C
15%
57%
3.6 m/s
54
4
80
October
14°C
10°C
10°C
17%
62%
3.8 m/s
14
0
75
November
9°C
6°C
5°C
17%
65%
3.9 m/s
0
0
37
December
7°C
5°C
3°C
20%
70%
4.2 m/s
0
0
20
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 Northampton weather by season
Year round, Northampton has days of about 6°C at their warmest in January, its coolest month, and 21°C in July, its warmest; the coolest hours of the day run from 3°C to 15°C through the year, and the average temperature over the year is 11°C around the clock. Rain is most likely around December and least likely around April. 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.
Northampton weather in winterDecember to February
High 7°CLow 4°CRain 19%
Winter in Northampton has typical daily highs of about 7°C and lows of about 4°C, with a 19% chance of rain on a given day.
Northampton weather in springMarch to May
High 12°CLow 7°CRain 15%
Spring in Northampton has typical daily highs of about 12°C and lows of about 7°C, with a 15% chance of rain on a given day.
Northampton weather in summerJune to August
High 20°CLow 14°CRain 13%
Summer in Northampton has typical daily highs of about 20°C and lows of about 14°C, with a 13% chance of rain on a given day.
Northampton weather in autumnSeptember to November
High 14°CLow 9°CRain 17%
Autumn in Northampton has typical daily highs of about 14°C and lows of about 9°C, with a 17% chance of rain on a given day.
When is the rainy season in Northampton?
Northampton has no sharply defined rainy season: the chance of rain on a given day runs from 12% in April, the driest month, to 20% in December, the wettest.
What time of year is Northampton windiest?
Winds in Northampton are highest in February, averaging 4.7 m/s (17 km/h), and lightest in July, at 3.6 m/s (13 km/h). The prevailing wind is from the SW.
What is the average temperature in Northampton year round?
The average temperature in Northampton over the whole year is 11°C. July is the hottest month, with highs of about 21°C; January is the coldest, with lows of about 3°C.