Newtown gets more frosts than 93% of UK towns
In July the day’s top temperature is typically 20.9°C (70°F). Rain is plentiful here, more than falls on 80% of UK towns. Of all months, December brings the most rain and May the least. The heating season runs November to April: each of those months averages under 10°C.
Met Office 1991–2020 averages for the town itself.
A year in Newtown at a glance
Each month’s typical high and low, in °C.
What a year in Newtown feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 1,032 mm of rain a year
December is the wettest month and May the driest. About 26 days a year bring 10 mm (0.4 in) or more. 5th wettest of 7 Powys towns of 2,500+.
Rain by month
Millimetres
Sunshine by month
Hours of bright sunshine at Shawbury
A frosty town: 55 air frosts and 11 days of 25°C a year
On about 55 nights a year the air drops below freezing, and on about under 1 days it stays below freezing all day. About 11 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 Shawbury
Shawbury is 34 miles north-east of Newtown, 72 m (236 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 | 7.5°C | 1.2°C | 57 mm | 11.7 | 50 |
| February | 8.1°C | 1.2°C | 43 mm | 10.8 | 71 |
| March | 10.3°C | 2.3°C | 43 mm | 8.2 | 109 |
| April | 13.2°C | 3.9°C | 47 mm | 4.4 | 148 |
| May | 16.3°C | 6.7°C | 54 mm | 0.9 | 181 |
| June | 19.1°C | 9.6°C | 59 mm | 0.0 | 173 |
| July | 21.1°C | 11.5°C | 58 mm | 0.0 | 179 |
| August | 20.7°C | 11.4°C | 64 mm | 0.0 | 156 |
| September | 18.1°C | 9.3°C | 61 mm | 0.0 | 127 |
| October | 14.2°C | 6.6°C | 69 mm | 1.8 | 92 |
| November | 10.3°C | 3.5°C | 61 mm | 6.7 | 59 |
| December | 7.7°C | 1.3°C | 66 mm | 11.2 | 48 |
| Year | 13.9°C | 5.7°C | 682 mm | 56 | 1,392 |
Met Office historic station data, Shawbury, 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Kipp & Zonen recorder.
How Newtown 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 Powys 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 |
|---|---|---|---|
| Newtown | 20.9°C | 1.0°C | 1,032 mm |
| Llanidloes 10.2 mi | 19.2°C 1.6°C cooler | 1.1°C about the same | 1,472 mm |
Newtown 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 | 7.5°C 45°F | 1.0°C 34°F | 4.3°C | 104 mm 4.1 in |
| February | 7.7°C 46°F | 1.2°C 34°F | 4.5°C | 89 mm 3.5 in |
| March | 10.0°C 50°F | 2.1°C 36°F | 5.9°C | 75 mm 2.9 in |
| April | 13.1°C 56°F | 3.7°C 39°F | 8.2°C | 67 mm 2.6 in |
| May | 15.6°C 60°F | 5.8°C 42°F | 10.5°C | 67 mm 2.6 in |
| June | 18.7°C 66°F | 8.4°C 47°F | 13.6°C | 73 mm 2.9 in |
| July | 20.9°C 70°F | 10.5°C 51°F | 15.8°C | 71 mm 2.8 in |
| August | 20.2°C 68°F | 10.8°C 51°F | 15.2°C | 75 mm 3.0 in |
| September | 17.4°C 63°F | 9.1°C 48°F | 13.3°C | 71 mm 2.8 in |
| October | 13.6°C 57°F | 6.5°C 44°F | 10.1°C | 106 mm 4.2 in |
| November | 9.9°C 50°F | 3.3°C 38°F | 6.7°C | 106 mm 4.2 in |
| December | 7.6°C 46°F | 1.4°C 34°F | 4.6°C | 129 mm 5.1 in |
| Year | 13.5°C | 5.3°C | 9.4°C | 1,032 mm |
Where Newtown’s numbers come from
Averages over 30 years, not a forecast.
- Mean temperature, rain and day counts: HadUK-Grid 1991–2020 averages for the 2 Met Office 2 km grid squares whose centre lies inside Newtown’s built-up area.
- 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 Shawbury, 34 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 Newtown’s climate
How warm does Newtown get in summer?
July is the warmest month, with average highs of 20.9°C (70°F). About 11 days a year reach 25°C (77°F), fewer than 50% of UK towns.
How cold does Newtown get in winter?
January nights average 1.0°C (34°F). The air drops below freezing on about 55 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Newtown get?
About 1,032 mm (41 in) a year, more than 80% of UK towns. December is the wettest month (129 mm) and May the driest (67 mm).
How sunny is it?
The nearest Met Office station with a sunshine record, Shawbury (34 miles away), averages 1,392 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 Newtown. 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 Newtown →
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