Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
July
Weather in July
Temperature
Harpenden's temperature records reveal July as the warmest month, marked by average highs of 21.3°C (70.3°F) and lows of 12.5°C (54.5°F).Humidity
In July, the average relative humidity is 78%.Rainfall
In Harpenden, in July, it is raining for 16.8 days, with typically 30mm (1.18") of accumulated precipitation. In Harpenden, during the entire year, the rain falls for 160.5 days and collects up to 325mm (12.8") of precipitation.Snowfall
May through October are months without snowfall in Harpenden.Daylight
In July, the average length of the day is 16h and 9min.On the first day of the month, sunrise is at 4:47 am and sunset at 9:23 pm. On the last day of July, sunrise is at 5:23 am and sunset at 8:52 pm BST.
Sunshine
The months with the most sunshine in Harpenden are July and August, with an average of 7.8h of sunshine.UV index
The month with the highest UV index is July, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: An average UV index of 5 in July transforms into this advice:
Make use of precautions - It is urged to ward off sun damage. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year in Harpenden?
What is the usual temperature for Harpenden in July?
What is the average humidity in July in Harpenden?
How many days does it rain in July in Harpenden?
When it does not snow in Harpenden?
How many hours of daylight does Harpenden have in July?
When are sunrise and sunset in July in Harpenden?
What is the month with the most sunshine in Harpenden?
How long on average sun shines in July in Harpenden?
What is the month with the highest UV index in Harpenden?
What is the UV index intensity in July in Harpenden?
Average temperature in July
Harpenden, United Kingdom
- Average high temperature in July: 21.3°C
The warmest month (with the highest average high temperature) is July (21.3°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in July: 12.5°C
The month with the highest average low temperature is August (13.2°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).
Average pressure in July
Harpenden, United Kingdom
- Average pressure in July: 1015.1mbar
The months with the highest atmospheric pressure are May and September (1016.7mbar).
The month with the lowest atmospheric pressure is November (1010.3mbar).
Average wind speed in July
Harpenden, United Kingdom
- Average wind speed in July: 12.9km/h
The windiest months (with the highest average wind speed) are February and December (18.4km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity in July
Harpenden, United Kingdom
- Average humidity in July: 78%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (77%).
Average rainfall in July
Harpenden, United Kingdom
- Average rainfall in July: 30mm
The wettest month (with the highest rainfall) is June (43mm).
The driest month (with the least rainfall) is September (19mm).
Average rainfall days in July
Harpenden, United Kingdom
- Average rainfall days in July: 16.8 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is February (10.8 days).
Average snowfall in July
Harpenden, United Kingdom
- Average snowfall in July: 0mm
The month with the highest snowfall is February (29mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in July
Harpenden, United Kingdom
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (3.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Harpenden, United Kingdom
- Average daylight in July: 16h and 1min
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 July: 7h and 5min
The months with the most sunshine are July and August (Average sunshine: 7h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in July
Harpenden, United Kingdom
- Average sunshine days in July: 9.7 days
The month with the most sunshine days is March (15.1 days).
The month with the least sunshine days is July (9.7 days).
Average UV index in July
Harpenden, United Kingdom
- Average UV index in July: 5
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in July
Harpenden, United Kingdom
- Average cloud cover in July: 51
The months with the most cloud cover are February and November (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 49).
Average visibility in July
Harpenden, United Kingdom
- Average visibility in July: 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).
