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
July stands out as Hemel Hempstead's warmest month, with an average high-temperature of 21.6°C (70.9°F) and a low-temperature of 12.7°C (54.9°F).Humidity
The average relative humidity in July in Hemel Hempstead is 77%.Rainfall
In Hemel Hempstead, in July, during 16.8 rainfall days, 33mm (1.3") of precipitation is typically accumulated. In Hemel Hempstead, during the entire year, the rain falls for 159.2 days and collects up to 359mm (14.13") of precipitation.Snowfall
In Hemel Hempstead, snow does not fall in April through October.Daylight
In July, the average length of the day in Hemel Hempstead is 16h and 8min.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, in Hemel Hempstead, sunrise is at 5:24 am and sunset at 8:52 pm BST.
Sunshine
The months with the most sunshine in Hemel Hempstead are July and August, with an average of 8h of sunshine.UV index
June and July, with an average maximum UV index of 5, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 5 during July leads to these instructions:
Be vigilant - Preventing sunburn is recommended. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year in Hemel Hempstead?
What is the average July temperature in Hemel Hempstead?
What is the average humidity in July in Hemel Hempstead?
How much does it rain in Hemel Hempstead in July?
When it does not snow in Hemel Hempstead?
How many hours of daylight does Hemel Hempstead have in July?
What time are sunrise and sunset in July in Hemel Hempstead?
What are the months with the most sunshine in Hemel Hempstead?
How long on average sun shines in July in Hemel Hempstead?
What is the month with the highest UV index in Hemel Hempstead?
How high is the UV index in July in Hemel Hempstead?
Average temperature in July
Hemel Hempstead, United Kingdom
- Average high temperature in July: 21.6°C
The warmest month (with the highest average high temperature) is July (21.6°C).
The month with the lowest average high temperature is January (6.4°C).
- Average low temperature in July: 12.7°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).
Average pressure in July
Hemel Hempstead, United Kingdom
- Average pressure in July: 1015.2mbar
The month with the highest atmospheric pressure is September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).
Average wind speed in July
Hemel Hempstead, United Kingdom
- Average wind speed in July: 12.9km/h
The windiest month (with the highest average wind speed) is February (18.2km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity in July
Hemel Hempstead, United Kingdom
- Average humidity in July: 77%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (76%).
Average rainfall in July
Hemel Hempstead, United Kingdom
- Average rainfall in July: 33mm
The wettest month (with the highest rainfall) is June (44mm).
The driest month (with the least rainfall) is September (19mm).
Average rainfall days in July
Hemel Hempstead, 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 September (10.7 days).
Average snowfall in July
Hemel Hempstead, United Kingdom
- Average snowfall in July: 0mm
The month with the highest snowfall is December (20mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in July
Hemel Hempstead, United Kingdom
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (3.5 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
Hemel Hempstead, 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: 8h and 0min
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 July
Hemel Hempstead, United Kingdom
- Average sunshine days in July: 11 days
The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in July
Hemel Hempstead, United Kingdom
- Average UV index in July: 5
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in July
Hemel Hempstead, United Kingdom
- Average cloud cover in July: 50
The months with the most cloud cover are February and November (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 48).
Average visibility in July
Hemel Hempstead, 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).
