Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
Harrow on the Hill in April experiences a slight uptick in the average high-temperature, adjusting from March's cool 10.4°C (50.7°F) to a refreshing 14.2°C (57.6°F). The average nighttime temperature in Harrow on the Hill lowers to a cold 5.4°C (41.7°F) throughout April.Humidity
The average relative humidity in April in Harrow on the Hill is 78%.Rainfall
In Harrow on the Hill, in April, it is raining for 14.8 days, with typically 21mm (0.83") of accumulated precipitation. In Harrow on the Hill, during the entire year, the rain falls for 165.8 days and collects up to 345mm (13.58") of precipitation.Snowfall
In Harrow on the Hill, snow does not fall in April through October.Daylight
In April, the average length of the day in Harrow on the Hill is 13h and 54min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:35 pm. On the last day of April, sunrise is at 5:33 am and sunset at 8:23 pm BST.
Sunshine
The average sunshine in April in Harrow on the Hill is 7.7h.UV index
In April, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The average daily UV index of 3 in April transforms into the following instructions:
Be vigilant - A duty to shield skin and eyes from injury exists. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
What is the usual temperature for Harrow on the Hill in April?
What is the average humidity in April in Harrow on the Hill?
How much does it rain in Harrow on the Hill in April?
When it does not snow in Harrow on the Hill?
Does it snow in Harrow on the Hill in April?
How many hours of daylight does Harrow on the Hill have in April?
When are sunrise and sunset in April in Harrow on the Hill?
How long on average sun shines in April in Harrow on the Hill?
What is the UV index reading in April in Harrow on the Hill?
Average temperature in April
Harrow on the Hill, United Kingdom
- Average high temperature in April: 14.2°C
The warmest month (with the highest average high temperature) is July (21.8°C).
The month with the lowest average high temperature is January (6.7°C).
- Average low temperature in April: 5.4°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is January (1.9°C).
Average pressure in April
Harrow on the Hill, United Kingdom
- Average pressure in April: 1015.7mbar
The month with the highest atmospheric pressure is September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in April
Harrow on the Hill, United Kingdom
- Average wind speed in April: 13.5km/h
The windiest month (with the highest average wind speed) is February (17.6km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).
Average humidity in April
Harrow on the Hill, United Kingdom
- Average humidity in April: 78%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in April
Harrow on the Hill, United Kingdom
- Average rainfall in April: 21mm
The wettest month (with the highest rainfall) is June (46mm).
The driest month (with the least rainfall) is January (19mm).
Average rainfall days in April
Harrow on the Hill, United Kingdom
- Average rainfall days in April: 14.8 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is February (10.8 days).
Average snowfall in April
Harrow on the Hill, United Kingdom
- Average snowfall in April: 0mm
The month with the highest snowfall is February (16mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in April
Harrow on the Hill, United Kingdom
- Average snowfall days in April: 0.1 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Harrow on the Hill, United Kingdom
- Average daylight in April: 13h and 5min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in April: 7h and 4min
The months with the most sunshine are July and August (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in April
Harrow on the Hill, United Kingdom
- Average sunshine days in April: 11.9 days
The month with the most sunshine days is December (16.3 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in April
Harrow on the Hill, United Kingdom
- Average UV index in April: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Harrow on the Hill, United Kingdom
- Average cloud cover in April: 49
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are April and September (Cloud cover 49).
Average visibility in April
Harrow on the Hill, United Kingdom
- Average visibility in April: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
Harrow on the Hill, United Kingdom
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