Climate normals · 1970–2000
Harrow Climate
Harrow is a city in United Kingdom (ENG) with a population of about 149,246. Its average annual temperature is 10.7°C (51°F), with roughly 624 mm of rain per year.
10.7°C
Avg Temp
624
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
Harrow Climate
Harrow has an average annual temperature of 10.7°C (51°F) and receives about 624 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
10.7°C
Avg Temp
624
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 5° / 41° | 60 mm |
| February | 5° / 41° | 39 mm |
| March | 7° / 45° | 47 mm |
| April | 9° / 48° | 45 mm |
| May | 13° / 55° | 50 mm |
| June | 16° / 60° | 54 mm |
| July | 18° / 64° | 43 mm |
| August | 18° / 64° | 50 mm |
| September | 15° / 59° | 57 mm |
| October | 11° / 52° | 61 mm |
| November | 8° / 46° | 59 mm |
| December | 6° / 42° | 59 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Harrow
The most comfortable months to visit Harrow are typically July, August and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 23°C high). The coldest is January (near 2°C low). October is usually the wettest month.
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Frequently Asked Questions
The most comfortable months to visit Harrow are typically July, August and June, when temperatures are mildest and rainfall is relatively low (1970–2000 climate normals).
Harrow, United Kingdom has an average annual temperature of 10.7°C and about 624 mm of precipitation per year. The warmest month is July and the coldest is January.
In July, the hottest month, daily highs in Harrow average about 23°C (74°F).
Monthly climate normals (1970–2000) sampled from WorldClim 2.1 at ~9 km resolution. Humidity derived from vapor pressure. City coordinates and population from GeoNames.