Annual mean 10°C · wettest around December · prevailing wind SW
Warmest
19.4 °C
Coldest
5.2 °C
Wettest
29%
Windiest
6.1 m/s
Prevailing
SW
5.1 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 Blackburn over the whole year is 10°C. July is the hottest month, with highs of about 19°C; January is the coldest, with lows of about 4°C. Blackburn has no sharply defined rainy season: the chance of rain on a given day runs from 15% in April, the driest month, to 26% in December, the wettest. Winds in Blackburn are highest in February, averaging 5.3 m/s (19 km/h), and lightest in May, at 3.9 m/s (14 km/h). The prevailing wind is from the SW. The clearest skies in Blackburn come in May, when the sky is typically 56% covered; December is the cloudiest month, at 70%.
Month by month Blackburn 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
4°C
1°C
25%
69%
4.7 m/s
0
0
9
February
7°C
4°C
1°C
25%
66%
5.3 m/s
0
0
14
March
9°C
5°C
4°C
22%
65%
4.6 m/s
1
0
28
April
11°C
6°C
7°C
15%
57%
4.2 m/s
6
0
48
May
15°C
10°C
11°C
15%
56%
3.9 m/s
26
0
76
June
18°C
13°C
15°C
18%
60%
4.0 m/s
48
4
79
July
19°C
14°C
16°C
19%
62%
3.9 m/s
59
6
78
August
18°C
14°C
16°C
19%
61%
4.1 m/s
57
4
80
September
16°C
12°C
14°C
22%
62%
4.0 m/s
39
3
77
October
13°C
10°C
9°C
23%
64%
4.4 m/s
8
0
67
November
9°C
7°C
5°C
24%
68%
4.4 m/s
0
0
34
December
7°C
5°C
2°C
26%
70%
4.6 m/s
0
0
16
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 Blackburn weather by season
Year round, Blackburn has days of about 6°C at their warmest in January, its coolest month, and 19°C in July, its warmest; the coolest hours of the day run from 4°C to 14°C through the year, and the average temperature over the year is 10°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.
Blackburn weather in winterDecember to February
High 6°CLow 5°CRain 25%
Winter in Blackburn has typical daily highs of about 6°C and lows of about 5°C, with a 25% chance of rain on a given day.
Blackburn weather in springMarch to May
High 12°CLow 7°CRain 17%
Spring in Blackburn has typical daily highs of about 12°C and lows of about 7°C, with a 17% chance of rain on a given day.
Blackburn weather in summerJune to August
High 18°CLow 14°CRain 19%
Summer in Blackburn has typical daily highs of about 18°C and lows of about 14°C, with a 19% chance of rain on a given day.
Blackburn weather in autumnSeptember to November
High 13°CLow 9°CRain 23%
Autumn in Blackburn has typical daily highs of about 13°C and lows of about 9°C, with a 23% chance of rain on a given day.
When is the rainy season in Blackburn?
Blackburn has no sharply defined rainy season: the chance of rain on a given day runs from 15% in April, the driest month, to 26% in December, the wettest.
What time of year is Blackburn windiest?
Winds in Blackburn are highest in February, averaging 5.3 m/s (19 km/h), and lightest in May, at 3.9 m/s (14 km/h). The prevailing wind is from the SW.
What is the average temperature in Blackburn year round?
The average temperature in Blackburn over the whole year is 10°C. July is the hottest month, with highs of about 19°C; January is the coldest, with lows of about 4°C.