
Leighton Moss RSPB Reserve
- Annual mean
- 8.6 °C
- Warmest month
- July
- Wettest month
- December
Read twelve months at a representative 20.20 m marine point
West of Walney records a mean temperature of 5.98 °C in February and 15.68 °C in August at the sampled point. Daily precipitation averages 2.11 mm in May and 4.10 mm in November; wind speed measures 5.67 m/s in July and 8.85 m/s in January. The NASA POWER 1991–2020 series also supplies humidity and daylight at one 20.20 m coordinate, not live weather, a prediction, or a marine-area-wide measurement.
Comparing twelve monthly temperature ranges with average daily precipitation rates
Trace long-term monthly normals across temperature bounds, precipitation rates, and daylight hours.
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | 6.4 °C2.5° to 10.2° | 3.4 mm/day | 86.1% | 8.9 m/s | 7.8 hours |
| February | 6 °C2.3° to 9.4° | 3.1 mm/day | 86.6% | 8.4 m/s | 9.5 hours |
| March | 6.6 °C2.8° to 10.2° | 2.6 mm/day | 86.6% | 7.4 m/s | 11.6 hours |
| April | 8.1 °C4.1° to 12.7° | 2.2 mm/day | 85.5% | 6.4 m/s | 13.8 hours |
| May | 10.8 °C6.6° to 16.1° | 2.1 mm/day | 84.1% | 6.1 m/s | 15.8 hours |
| June | 13.3 °C9.8° to 18.2° | 2.5 mm/day | 85.2% | 5.7 m/s | 16.8 hours |
| July | 15.2 °C12.1° to 19.7° | 2.6 mm/day | 85.6% | 5.7 m/s | 16.3 hours |
| August | 15.7 °C12.9° to 19.2° | 3 mm/day | 84.9% | 6.1 m/s | 14.6 hours |
| September | 14.5 °C11.1° to 18.2° | 3 mm/day | 83.8% | 6.9 m/s | 12.4 hours |
| October | 12.2 °C8.2° to 16° | 3.8 mm/day | 83.6% | 7.9 m/s | 10.1 hours |
| November | 9.6 °C5.3° to 13.5° | 4.1 mm/day | 84.7% | 8.5 m/s | 8.2 hours |
| December | 7.5 °C3.3° to 11.5° | 4 mm/day | 85.3% | 8.8 m/s | 7.2 hours |
See two months side by side and how much they differ. Both use the same 1991–2020 climate normals and NASA POWER data point as the table above, so they show typical conditions, not a forecast.
Comparative analysis of long-term monthly normals for temperature, precipitation, wind, and daylight duration
Interactive climate map
Open the climate map to compare monthly temperature, precipitation, and other averages.
Analyze monthly temperature, precipitation, and wind patterns across different protected landscapes.








Deepen your understanding of marine conservation landscapes by examining the West of Walney site. Explore how this expansive Irish Sea habitat integrates with regional energy infrastructure and protected seabed zones through the MoriAtlas mapping and data platform.