Codmore Hill has milder winter nights than 87% of UK towns
Peak summer warmth arrives in July, with afternoons near 22.2°C (72°F). Warm afternoons come more often than in 81% of UK towns. The rainiest month is November; the driest is March. Keep the boiler serviced for the months from November to April, which average under 10°C.
Met Office 1991–2020 averages for the town itself.
A year in Codmore Hill at a glance
Each month’s typical high and low, in °C.
What a year in Codmore Hill feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 885 mm of rain a year
November is the wettest month and March the driest. About 28 days a year bring 10 mm (0.4 in) or more.
Rain by month
Millimetres
Sunshine by month
Hours of bright sunshine at Heathrow
45 air frosts and 17 days of 25°C a year
On about 45 nights a year the air drops below freezing, and on about under 1 days it stays below freezing all day. About 17 days a year reach 25°C (77°F).
Day counts are 1991–2020 averages from the Met Office’s 2 km grid. The Met Office calls a day of 25°C or more a summer day and a night below 0°C an air frost; ground frosts, on grass, come more often.
The Met Office station at Heathrow
Heathrow is 35 miles north of Codmore Hill, 25 m (82 ft) above sea level. It is the nearest of the 37 long-running stations the Met Office publishes in full; at that distance read it for sunshine and the station’s own record, not as the town’s figures.
| Month | High | Low | Rain | Air frosts | Sun (hours) |
|---|---|---|---|---|---|
| January | 8.4°C | 2.7°C | 59 mm | 6.8 | 59 |
| February | 9.0°C | 2.6°C | 45 mm | 6.2 | 76 |
| March | 11.7°C | 4.1°C | 39 mm | 3.0 | 120 |
| April | 15.0°C | 6.0°C | 42 mm | 0.8 | 169 |
| May | 18.4°C | 9.1°C | 46 mm | 0.0 | 197 |
| June | 21.6°C | 12.0°C | 47 mm | 0.0 | 197 |
| July | 23.9°C | 14.2°C | 46 mm | 0.0 | 206 |
| August | 23.4°C | 14.1°C | 54 mm | 0.0 | 192 |
| September | 20.2°C | 11.6°C | 50 mm | 0.0 | 150 |
| October | 15.8°C | 8.8°C | 65 mm | 0.3 | 111 |
| November | 11.5°C | 5.3°C | 67 mm | 2.7 | 68 |
| December | 8.8°C | 3.1°C | 57 mm | 7.2 | 53 |
| Year | 15.6°C | 7.8°C | 616 mm | 27 | 1,597 |
Met Office historic station data, Heathrow (London Airport), 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Kipp & Zonen recorder.
How Codmore Hill compares
Against the 2,537 towns and cities of 2,500 or more across the UK, each with its own Met Office averages, and its place among West Sussex towns that size.
Nearby towns’ climate
The nearest towns of 1,000+ within 12 miles: a hill, a valley or the sea can make a real difference over a few miles.
| Town | July high | January low | Rain a year |
|---|---|---|---|
| Codmore Hill | 22.2°C | 2.6°C | 885 mm |
| Pulborough 0.6 mi | 22.5°C about the same | 2.6°C about the same | 889 mm |
| West Chiltington 2.6 mi | 22.3°C about the same | 2.4°C about the same | 963 mm |
| Abingworth 3.5 mi | 22.3°C about the same | 2.1°C about the same | 965 mm |
| Storrington 3.9 mi | 22.3°C about the same | 2.0°C 0.6°C colder | 965 mm |
| Billingshurst 4.2 mi | 22.8°C 0.6°C warmer | 2.4°C about the same | 834 mm |
| Petworth 4.8 mi | 22.7°C 0.5°C warmer | 2.0°C 0.6°C colder | 915 mm |
Codmore Hill weather by month
Average daily high and low, mean temperature and rain, 1991–2020, for the town itself (the Met Office’s HadUK-Grid).
| Month | High | Low | Mean | Rain |
|---|---|---|---|---|
| January | 8.5°C 47°F | 2.6°C 37°F | 5.5°C | 99 mm 3.9 in |
| February | 8.6°C 48°F | 2.0°C 36°F | 5.3°C | 67 mm 2.6 in |
| March | 11.2°C 52°F | 3.4°C 38°F | 7.3°C | 53 mm 2.1 in |
| April | 14.2°C 57°F | 4.7°C 40°F | 9.4°C | 57 mm 2.2 in |
| May | 17.3°C 63°F | 7.3°C 45°F | 12.3°C | 54 mm 2.1 in |
| June | 20.0°C 68°F | 10.1°C 50°F | 15.0°C | 56 mm 2.2 in |
| July | 22.2°C 72°F | 12.3°C 54°F | 17.2°C | 57 mm 2.2 in |
| August | 22.0°C 72°F | 12.1°C 54°F | 17.0°C | 67 mm 2.6 in |
| September | 19.2°C 67°F | 9.7°C 49°F | 14.4°C | 65 mm 2.6 in |
| October | 15.3°C 60°F | 7.3°C 45°F | 11.3°C | 102 mm 4.0 in |
| November | 11.3°C 52°F | 4.4°C 40°F | 7.8°C | 109 mm 4.3 in |
| December | 8.7°C 48°F | 2.5°C 37°F | 5.6°C | 100 mm 3.9 in |
| Year | 14.9°C | 6.5°C | 10.7°C | 885 mm |
Where Codmore Hill’s numbers come from
Averages over 30 years, not a forecast.
- Mean temperature, rain and day counts: HadUK-Grid 1991–2020 averages for the Met Office 2 km grid square nearest Codmore Hill’s centre (the town is smaller than one square).
- Highs and lows: the Met Office publishes average daily maxima and minima on its 12 km grid; each is moved by the difference between the town’s 2 km mean temperature and the 12 km square’s, which carries the town’s own height and setting over.
- Weather station and sunshine: Met Office historic station data for Heathrow (London Airport), 35 miles away, months of 1991–2020 averaged.
- Comparisons: every town and city of 2,500 or more across the UK, all four nations, read the same way.
Met Office HadUK-Grid · Met Office Climate Data Portal · Historic station data. Open Government Licence v3.0.
Questions about Codmore Hill’s climate
How warm does Codmore Hill get in summer?
July is the warmest month, with average highs of 22.2°C (72°F). About 17 days a year reach 25°C (77°F), more than 81% of UK towns.
How cold does Codmore Hill get in winter?
February nights average 2.0°C (36°F). The air drops below freezing on about 45 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Codmore Hill get?
About 885 mm (35 in) a year, more than 67% of UK towns. November is the wettest month (109 mm) and March the driest (53 mm).
How sunny is it?
The nearest Met Office station with a sunshine record, Heathrow (35 miles away), averages 1,597 hours of bright sunshine a year. Sunshine isn’t on the town grid, so this is the station’s figure.
Where do these figures come from?
The Met Office’s HadUK-Grid 1991–2020 averages, which turn thousands of weather stations into a map of the UK in 2 km squares; the page reads the squares inside Codmore Hill. They are 30-year averages, not a forecast.
Contains Met Office data © Crown copyright 2026, Open Government Licence v3.0. HadUK-Grid 1991–2020 averages via the Met Office Climate Data Portal; station averages from Met Office historic station data. Today’s forecast for Codmore Hill →
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