Climate and monthly weather forecastHarefield, United Kingdom
Climate and monthly weather forecast
Weather in January
January, the same as December, in Harefield, United Kingdom, is a frosty winter month, with temperature in the range of an average high of 6.7°C (44.1°F) and an average low of 1.8°C (35.2°F). Harefield notes the coldest temperatures in January, with a high average of 6.7°C (44.1°F) and a low of 1.8°C (35.2°F). Weather in January »Weather in February
The last month of the winter, February, is another chilly month in Harefield, United Kingdom, with temperature in the range of an average high of 7.5°C (45.5°F) and an average low of 2.4°C (36.3°F). The average high-temperature is a still frosty 7.5°C (45.5°F) in February, hardly different from the 6.7°C (44.1°F) recorded in January. Weather in February »Weather in March
The first month of the spring, March, is a cool month in Harefield, United Kingdom, with an average temperature fluctuating between 10.5°C (50.9°F) and 3.4°C (38.1°F). As Harefield transitions into March, the average high-temperature is observed to slightly rise from a chilly 7.5°C (45.5°F) in February to a cool 10.5°C (50.9°F). Weather in March »Weather in April
April in Harefield, United Kingdom, is a moderate spring month, with an average temperature ranging between min 5.3°C (41.5°F) and max 14.3°C (57.7°F). A subtle rise in the average high-temperature is observed during April, adjusting from a cool 10.5°C (50.9°F) in March to a refreshing 14.3°C (57.7°F). Weather in April »Weather in May
The last month of the spring, May, is an enjoyable month in Harefield, United Kingdom, with temperature in the range of an average low of 7.8°C (46°F) and an average high of 16.6°C (61.9°F). Harefield's May showcases an average high-temperature of a comfortable 16.6°C (61.9°F), hardly distinct from April's 14.3°C (57.7°F). Weather in May »Weather in June
The first month of the summer, June, is still a comfortable month in Harefield, United Kingdom, with an average temperature varying between 19.5°C (67.1°F) and 10.8°C (51.4°F). As June takes hold, the average high-temperature is a still comfortable 19.5°C (67.1°F), nearly mirroring that of the previous month. Weather in June »Weather in July
July in Harefield, United Kingdom, is a pleasant summer month, with an average temperature ranging between min 13.1°C (55.6°F) and max 21.8°C (71.2°F). With average temperatures fluctuating between a high of 21.8°C (71.2°F) and a low of 13.1°C (55.6°F), July stands out as the warmest month. Weather in July »Weather in August
August, the last month of the summer in Harefield, is another pleasant month, with an average temperature fluctuating between 21.6°C (70.9°F) and 13.6°C (56.5°F). The advent of August brings an average high-temperature of a still agreeable 21.6°C (70.9°F), almost identical to the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Harefield, is still a comfortable month, with an average temperature varying between 18.7°C (65.7°F) and 11.1°C (52°F). The shift into September uncovers an average high-temperature of a comfortable 18.7°C (65.7°F), subtly different from the previous month. Weather in September »Weather in October
October, like September, is another mild autumn month in Harefield, United Kingdom, with an average temperature ranging between max 15.1°C (59.2°F) and min 8.8°C (47.8°F). Transitioning from September to October involves a subtle drop in average high-temperatures, descending from a comfortable 18.7°C (65.7°F) to a mild 15.1°C (59.2°F). Weather in October »Weather in November
November, the last month of the autumn in Harefield, is also a fresh month, with an average temperature varying between 5.6°C (42.1°F) and 10.2°C (50.4°F). The onset of November entails a subtle temperature shift, as the average high-temperature eases from a mild 15.1°C (59.2°F) in October to a cool 10.2°C (50.4°F). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Harefield, United Kingdom, with an average temperature fluctuating between 7.8°C (46°F) and 3.3°C (37.9°F). Harefield indicates an average high-temperature of a frosty 7.8°C (46°F) in December, showing minor variation from November's 10.2°C (50.4°F). Weather in December »Updated: Jul 9, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is the coldest month, exhibiting average temperatures of 6.7°C (44.1°F) at the peak and 1.8°C (35.2°F) at the base.
Throughout the year, there are 132.4 rainfall days, and 214mm (8.43") of precipitation is accumulated.
January through March, November and December are months with snowfall.
In Harefield, during the entire year, snow falls for 8 days and aggregates up to 32mm (1.26") of snow.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
With an average of 3.7h of sunshine, February has the least sunshine of the year in Harefield.
April is the month with the least rainfall. Rain falls for 10.2 days and accumulates 10mm (0.39") of precipitation.
In Harefield, snow does not fall in April through October.
The month with the longest days is June, with an average of 16h and 36min of daylight.
The months with the highest UV index in Harefield are June and July, with an average maximum UV index of 5.
Harefield's temperatures peak on average in July, reaching 21.8°C (71.2°F) at their highest and 13.1°C (55.6°F) at their lowest.
July and August, with an average of 8h of sunshine, are months with the most sunshine.
The least humid month in Harefield is August, with an average relative humidity of 74%.
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time ends in Harefield, and the time zone changes from BST to GMT. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 1:00 am, and the time zone reverts from GMT to BST.
The most humid month is December, with an average relative humidity of 89%.
December is the month with the most rainfall in Harefield. Rain falls for 11.5 days and accumulates 25mm (0.98") of precipitation.
The month with the most snowfall is December, when snow falls for 1.5 days and typically aggregates up to 10mm (0.39") of snow.
The month with the shortest days is December, with an average of 7h and 54min of daylight.
Average temperature
Harefield, United Kingdom
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).
The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure
Harefield, United Kingdom
- Average pressure in January:
1014.5mbar - Average pressure in February:
1013.8mbar - Average pressure in March:
1015.5mbar - Average pressure in April:
1015.7mbar - Average pressure in May:
1016.8mbar - Average pressure in June:
1016.2mbar
- Average pressure in July:
1015.3mbar - Average pressure in August:
1014.8mbar - Average pressure in September:
1016.9mbar - Average pressure in October:
1015.1mbar - Average pressure in November:
1010.5mbar - Average pressure in December:
1014.4mbar
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
Harefield, United Kingdom
- Average wind speed in January:
16.8km/h - Average wind speed in February:
17.6km/h - Average wind speed in March:
16.1km/h - Average wind speed in April:
13.5km/h - Average wind speed in May:
13.5km/h - Average wind speed in June:
13km/h
- Average wind speed in July:
12.7km/h - Average wind speed in August:
12.9km/h - Average wind speed in September:
12.8km/h - Average wind speed in October:
14.6km/h - Average wind speed in November:
15.8km/h - Average wind speed in December:
17.3km/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
Harefield, United Kingdom
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (74%).
Average rainfall
Harefield, United Kingdom
The wettest month (with the highest rainfall) is December (25mm).
The driest month (with the least rainfall) is April (10mm).
Average rainfall days
Harefield, United Kingdom
- Average rainfall days in January:
10.9 days - Average rainfall days in February:
9.1 days - Average rainfall days in March:
10.1 days - Average rainfall days in April:
10.2 days - Average rainfall days in May:
10.8 days - Average rainfall days in June:
12.3 days
- Average rainfall days in July:
13.8 days - Average rainfall days in August:
12.2 days - Average rainfall days in September:
8.9 days - Average rainfall days in October:
10.7 days - Average rainfall days in November:
11.9 days - Average rainfall days in December:
11.5 days
The month with the highest number of rainy days is July (13.8 days).
The month with the least rainy days is September (8.9 days).
Average snowfall
Harefield, United Kingdom
The month with the highest snowfall is December (10mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days
Harefield, United Kingdom
- Average snowfall days in January:
2.2 days - Average snowfall days in February:
2.8 days - Average snowfall days in March:
0.9 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.3 days - Average snowfall days in December:
1.5 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Harefield, United Kingdom
- Average daylight in January:
8h and 24min - Average daylight in February:
10h and 0min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 54min - Average daylight in May:
15h and 36min - Average daylight in June:
16h and 36min
- Average daylight in July:
16h and 6min - Average daylight in August:
14h and 36min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 42min - Average daylight in November:
8h and 54min - Average daylight in December:
7h and 54min
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 January:
4h and 12min - Average sunshine in February:
3h and 42min - Average sunshine in March:
5h and 36min - Average sunshine in April:
7h and 36min - Average sunshine in May:
7h and 30min - Average sunshine in June:
7h and 30min
- Average sunshine in July:
8h and 0min - Average sunshine in August:
8h and 0min - Average sunshine in September:
7h and 6min - Average sunshine in October:
4h and 36min - Average sunshine in November:
4h and 0min - Average sunshine in December:
4h and 18min
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
Harefield, United Kingdom
- Average sunshine days in January:
15.7 days - Average sunshine days in February:
14.6 days - Average sunshine days in March:
17.5 days - Average sunshine days in April:
16.8 days - Average sunshine days in May:
16.9 days - Average sunshine days in June:
14.4 days
- Average sunshine days in July:
14 days - Average sunshine days in August:
15.2 days - Average sunshine days in September:
18.4 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
14.4 days - Average sunshine days in December:
16.5 days
The month with the most sunshine days is September (18.4 days).
The month with the least sunshine days is July (14 days).
Average UV index
Harefield, United Kingdom
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
Harefield, United Kingdom
The months with the most cloud cover are February and November (Cloud cover 60).
The months with the least cloud cover are April and September (Cloud cover 49).
Average visibility
Harefield, United Kingdom
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).
