March weather forecastHarmondsworth, United Kingdom
March
Weather in March
The first month of the spring, March, is a cool month in Harmondsworth, United Kingdom, with an average temperature ranging between max 10.5°C (50.9°F) and min 3.4°C (38.1°F).Temperature
Harmondsworth's shift from February to March is accompanied by an average high-temperature of a fresh 10.5°C (50.9°F), a slight deviation from 7.6°C (45.7°F). Harmondsworth in March anticipates an average nighttime temperature of 3.4°C (38.1°F).Humidity
In Harmondsworth, the average relative humidity in March is 81%.Rainfall
The months with the least rainfall are January, March through May Rain falls for 8.4 days and accumulates 9mm (0.35") of rain.Snowfall
Months with snowfall in Harmondsworth are January through March and December. March is the last month it regularly snows. During 0.5 snowfall days, in March, Harmondsworth aggregates 1mm (0.04") of snow. Throughout the year, there are 5.6 snowfall days, and 18mm (0.71") of snow is accumulated.Daylight
The average length of the day in March in Harmondsworth is 11h and 55min.On the first day of the month, sunrise is at 6:45 am and sunset at 5:42 pm. On the last day of March, in Harmondsworth, sunrise is at 5:37 am and sunset at 6:33 pm GMT.
Sunshine
The average sunshine in March is 5.5h.UV index
In Harmondsworth, the average daily maximum UV index in March is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In March, the maximum UV index of 3 suggests these recommendations:
Undertake protective steps - Preventing sun damage is advised. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Harmondsworth, United Kingdom
- Average high temperature in March: 10.5°C
The warmest month (with the highest average high temperature) is July (22°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in March: 3.4°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 March
Harmondsworth, United Kingdom
- Average pressure in March: 1015.5mbar
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 March
Harmondsworth, United Kingdom
- Average wind speed in March: 16km/h
The windiest month (with the highest average wind speed) is February (17.5km/h).
The calmest months (with the lowest average wind speed) are July and September (12.7km/h).
Average humidity in March
Harmondsworth, United Kingdom
- Average humidity in March: 81%
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 March
Harmondsworth, United Kingdom
- Average rainfall in March: 9mm
The wettest month (with the highest rainfall) is June (21mm).
The driest months (with the least rainfall) are January, March, April and May (9mm).
Average rainfall days in March
Harmondsworth, United Kingdom
- Average rainfall days in March: 8.4 days
The month with the highest number of rainy days is June (12.3 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in March
Harmondsworth, United Kingdom
- Average snowfall in March: 1mm
The months with the highest snowfall are January and February (6mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in March
Harmondsworth, United Kingdom
- Average snowfall days in March: 0.5 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in March /
Average sunshine in March
Harmondsworth, United Kingdom
- Average daylight in March: 11h 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 March: 5h and 30min
The month with the most sunshine is July (Average sunshine: 7h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in March
Harmondsworth, United Kingdom
- Average sunshine days in March: 20 days
The month with the most sunshine days is October (20.2 days).
The months with the least sunshine days are June and July (14.2 days).
Average UV index in March
Harmondsworth, United Kingdom
- Average UV index in March: 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 March
Harmondsworth, United Kingdom
- Average cloud cover in March: 55
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is April (Cloud cover 49).
Average visibility in March
Harmondsworth, United Kingdom
- Average visibility in March: 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).
