Climate averages 1991–2020

Blackburn weather
in January.

A cold, wet month: the coolest and the 8th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 6.0°C Daytime mean, January

Average low 1.5°C Night-time mean, January

Rainfall 103 mm 16 days with ≥1 mm

Daylight 8 h Sunrise to sunset, per day

January is a cold month in Blackburn: daytime highs average 6.0°C and nights cool to about 1.5°C. By daytime temperature it is the coolest month of the year.

Expect about 103 mm of rain on roughly 16 days, which makes January a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 8 h 03 min on an average January day.

The nearest other city in this atlas is Preston (15 km away). In January its highs average 6.6°C, 0.6°C warmer than Blackburn, with 102 mm of rain.

Among the 143 cities listed in the United Kingdom, Blackburn ranks joint 132nd of 143 for the warmest January highs and 135th of 143 for the driest January (rainfall, lowest first). The mean January high of those 143 cities is 6.9°C; Blackburn is 0.9°C cooler than that mean.

From January to February, average highs rise by 0.6°C to 6.5°C, and monthly rainfall falls from 103 mm to 90 mm.

The annual picture

January in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Blackburn climate table

1991–2020

Monthly climate averages for Blackburn, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January, selected	6.0°C1.5°C	1.5°C	103	16.3	8.18 h
February	6.5°C1.3°C	1.3°C	90	14.1	9.710 h
March	8.5°C2.1°C	2.1°C	84	13.8	11.812 h
April	11.2°C3.8°C	3.8°C	75	13.6	14.014 h
May	14.2°C6.7°C	6.7°C	79	13.6	15.916 h
June	16.5°C9.7°C	9.7°C	91	14.3	17.017 h
July	18.2°C11.6°C	11.6°C	99	15.9	16.517 h
August	17.9°C11.6°C	11.6°C	108	16.4	14.815 h
September	15.7°C9.6°C	9.6°C	91	13.6	12.813 h
October	12.4°C7.1°C	7.1°C	108	15.4	10.611 h
November	8.7°C4.1°C	4.1°C	107	16.4	8.69 h
December	6.3°C1.8°C	1.8°C	119	16.2	7.58 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

January in nearby cities

Distance from Blackburn

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Blackburn) is explained once on the Blackburn year overview and on the Sources, method and limits page.