Climate averages 1991–2020

Preston weather
in July.

A mild, wet month: the warmest and the 7th driest of the year.

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

Average high 18.4°C Daytime mean, July

Average low 12.5°C Night-time mean, July

Rainfall 98 mm 16 days with ≥1 mm

Daylight 17 h Sunrise to sunset, per day

July is a mild month in Preston: daytime highs average 18.4°C and nights cool to about 12.5°C. By daytime temperature it is the warmest month of the year.

Expect about 98 mm of rain on roughly 16 days, which makes July a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 16 h 32 min on an average July day.

The nearest other city in this atlas is Blackburn (15 km away). In July its highs average 18.2°C, about as warm as Preston, with 99 mm of rain.

Among the 143 cities listed in the United Kingdom, Preston ranks 127th of 143 for the warmest July highs and 141st of 143 for the driest July (rainfall, lowest first). The mean July high of those 143 cities is 20.0°C; Preston is 1.5°C cooler than that mean.

From July to August, average highs fall by 0.2°C to 18.2°C, and monthly rainfall rises from 98 mm to 112 mm.

The annual picture

July 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

Preston climate table

1991–2020

Monthly climate averages for Preston, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	6.6°C2.5°C	2.5°C	102	16.5	8.18 h
February	7.1°C2.2°C	2.2°C	87	14.3	9.710 h
March	8.9°C3.1°C	3.1°C	81	14.0	11.812 h
April	11.5°C4.7°C	4.7°C	72	13.3	14.014 h
May	14.4°C7.6°C	7.6°C	78	13.3	15.916 h
June	16.8°C10.5°C	10.5°C	89	14.3	17.017 h
July, selected	18.4°C12.5°C	12.5°C	98	16.0	16.517 h
August	18.2°C12.5°C	12.5°C	112	16.8	14.815 h
September	16.2°C10.6°C	10.6°C	97	13.6	12.813 h
October	12.9°C8.1°C	8.1°C	116	16.0	10.611 h
November	9.3°C5.2°C	5.2°C	116	17.1	8.69 h
December	7.0°C2.9°C	2.9°C	123	16.6	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

July in nearby cities

Distance from Preston

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 Preston) is explained once on the Preston year overview and on the Sources, method and limits page.