Climate averages 1991–2020

Aylesbury weather
by month.

See how the year changes. July has the highest average daily maximum; February has the lowest average monthly rainfall.

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

Warmest month 21.1°C July, average high
Coolest month 1.8°C February, average low
Wettest month 62 mm November, monthly total
Driest month 44 mm February, monthly total
The year at a glance · average highYear overview

Across the year Aylesbury averages a daytime high of 13.6°C and a nighttime low of 6.8°C, with about 666 mm of rain on roughly 128 days. July is the warmest month (average high 21.1°C) and January the coolest (6.9°C). November (tied with August) is the wettest month with 62 mm; February is the driest with 44 mm.

The annual picture

A year in Aylesbury

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. -50510152025 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1000

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

Every month, side by side

Aylesbury climate table

1991–2020
Monthly climate averages for Aylesbury, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 6.9°C2.0°C2.0°C5511.28.48 h
February 7.5°C1.8°C1.8°C449.39.910 h
March 10.0°C3.0°C3.0°C4510.211.812 h
April 12.8°C4.7°C4.7°C5211.613.814 h
May 16.0°C7.7°C7.7°C5710.415.616 h
June 18.8°C10.8°C10.8°C5810.316.617 h
July 21.1°C12.9°C12.9°C5910.916.216 h
August 20.7°C12.8°C12.8°C6210.714.615 h
September 18.0°C10.6°C10.6°C539.412.713 h
October 14.0°C8.0°C8.0°C6111.410.711 h
November 9.8°C4.6°C4.6°C6211.68.99 h
December 7.2°C2.5°C2.5°C5810.97.98 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

Nearby cities

Distance from Aylesbury

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
What do the high and low temperatures mean?

We average the daily maximum and daily minimum for each calendar month over 1991–2020. They are not record extremes, a forecast range or temperatures at a fixed time of day.

How is a rain day counted?

A local calendar day (standard time, UTC±0, no daylight saving) with at least 1 mm of total precipitation counts as one rain day. We count these for each year and month, then average across 30 years. The average does not predict which days will be wet.

Where do the numbers come from?

ERA5-Land (temperature) and ERA5 (precipitation) reanalysis from the Copernicus Climate Change Service, read from the Open-Meteo open-data archive. Temperature comes from the 0.1° model cell at 51.80°, -0.80° (2 km from the city centre), adjusted up by 0.2°C for the difference between the city's elevation (93 m) and the cell's (128 m). Rain comes from the 0.25° cell at 51.75°, -0.75°. High Wycombe lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells. These are model estimates, not weather-station readings; coast, hills and city streets can differ.

Does this page show sunshine, humidity or sea temperature?

No. The data used here contain air temperature and precipitation only. Daylight hours are calculated from the city's latitude (sunrise to sunset), not measured sunshine.