Climate averages 1991–2020
Northampton weather
in May.
A mild, moderately wet month: the 5th warmest and the joint 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Northampton: daytime highs average 15.6°C and nights cool to about 7.4°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 57 mm of rain on roughly 11 days, which makes May a moderately wet month (the joint 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 41 min on an average May day.
The nearest other city in this atlas is Milton Keynes (25 km away). In May its highs average 15.6°C, about as warm as Northampton, with 58 mm of rain.
Among the 143 cities listed in the United Kingdom, Northampton ranks joint 49th of 143 for the warmest May highs and joint 69th of 143 for the driest May (rainfall, lowest first). The mean May high of those 143 cities is 15.2°C; Northampton is 0.4°C warmer than that mean.
From May to June, average highs rise by 2.9°C to 18.4°C, and monthly rainfall rises from 57 mm to 60 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Northampton climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.7°C1.8°C | 1.8°C | 52 | 11.6 | 8.38 h |
| February | 7.3°C1.6°C | 1.6°C | 42 | 9.9 | 9.910 h |
| March | 9.7°C2.7°C | 2.7°C | 45 | 10.2 | 11.812 h |
| April | 12.5°C4.4°C | 4.4°C | 52 | 11.2 | 13.914 h |
| May, selected | 15.6°C7.4°C | 7.4°C | 57 | 10.8 | 15.716 h |
| June | 18.4°C10.5°C | 10.5°C | 60 | 10.4 | 16.717 h |
| July | 20.8°C12.7°C | 12.7°C | 62 | 11.5 | 16.316 h |
| August | 20.5°C12.6°C | 12.6°C | 61 | 10.9 | 14.715 h |
| September | 17.8°C10.4°C | 10.4°C | 54 | 9.4 | 12.713 h |
| October | 13.7°C7.8°C | 7.8°C | 62 | 11.2 | 10.711 h |
| November | 9.5°C4.5°C | 4.5°C | 59 | 11.2 | 8.89 h |
| December | 6.9°C2.3°C | 2.3°C | 57 | 11.0 | 7.88 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
May in nearby cities
- Milton Keynes in MayUnited Kingdom · 25 kmHigh 15.6°C · Low 7.5°C · 58 mm rain
- Rugby in MayUnited Kingdom · 29 kmHigh 15.3°C · Low 7.2°C · 59 mm rain
- Bedford in MayUnited Kingdom · 31 kmHigh 16.2°C · Low 8.0°C · 54 mm rain
- Coventry in MayUnited Kingdom · 46 kmHigh 15.5°C · Low 7.5°C · 59 mm rain
- Leicester in MayUnited Kingdom · 46 kmHigh 15.7°C · Low 7.6°C · 55 mm rain
- Aylesbury in MayUnited Kingdom · 48 kmHigh 16.0°C · Low 7.7°C · 57 mm rain
- Nuneaton in MayUnited Kingdom · 50 kmHigh 15.5°C · Low 7.4°C · 59 mm rain
- Luton in MayUnited Kingdom · 52 kmHigh 15.8°C · Low 7.6°C · 56 mm rain
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 limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Northampton) is explained once on the Northampton year overview and on the Sources, method and limits page.