July weather forecast
Monrovia, CA

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Weather in July

July in Monrovia, California, is a hot summer month, with an average temperature ranging between max 86.9°F (30.5°C) and min 63.5°F (17.5°C).

Temperature

The start of July signals a slight increase in the average high-temperature, moving from a moderately hot 81.5°F (27.5°C) in June to a hot 86.9°F (30.5°C). Monrovia's nights in July are distinguished by a pronounced temperature shift from the day, with an average low of 63.5°F (17.5°C).

Heat index

Throughout July, the heat index is estimated at a tropical 89.6°F (32°C). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.
One should consider that heat index numbers are for shaded settings and light wind. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', melds the effects of warmth and moisture to generate a feeling of heat. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold great significance to children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

In July, the average relative humidity is 50%.

Rainfall

In July, in Monrovia, the rain falls for 3.2 days. Throughout July, 0.2" (5mm) of precipitation is accumulated. Throughout the year, there are 50.9 rainfall days, and 8.46" (215mm) of precipitation is accumulated.

Daylight

The average length of the day in July is 14h and 10min.
On the first day of the month, sunrise is at 5:44 am and sunset at 8:07 pm. On the last day of July, sunrise is at 6:03 am and sunset at 7:53 pm PDT.

Sunshine

The month with the most sunshine is July, with an average of 12.1h of sunshine.

UV index

The months with the highest UV index are June through September, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: A typical high UV index of 6 in July suggests the following recommendations:
Deflect overexposure. Sun protection is a necessity. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.

Frequently asked questions

How hot does it get in July?

In Monrovia, 86.9°F (30.5°C) is the average high-temperature and 63.5°F (17.5°C) is the average low-temperature during July. The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in July is estimated at 89.6°F (32°C).

What is the average humidity in July?

In July, the average relative humidity is 50%.

How many days does it rain in July?

In July, the rain falls for 3.2 days. Throughout July, 0.2" (5mm) of precipitation is accumulated.

What is the average length of the day in July?

The average day length in July is 14h and 10min.

When is the sunrise / sunset in July?

In July, on the first day of the month, sunrise is at 5:44 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 7:53 pm PDT.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 12.1h of sunshine.

How many hours of sunshine does Monrovia have in July?

In Monrovia, the average sunshine duration in July is 12.1h.

What are the months with the highest UV index?

The months with the highest UV index are June through September, with an average maximum UV index of 6.

What is the UV index reading in July in Monrovia?

In July, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Monrovia, CA

Average temperature in July - Monrovia, CA
  • Average high temperature in July: 86.9°F

The warmest month (with the highest average high temperature) is August (88.2°F).
The month with the lowest average high temperature is December (61.7°F).

  • Average low temperature in July: 63.5°F

The month with the highest average low temperature is August (64.8°F).
The coldest month (with the lowest average low temperature) is December (45.7°F).

Average pressure in July
Monrovia, CA

Average pressure in July - Monrovia, CA
  • Average pressure in July: 29.91"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in July
Monrovia, CA

Average wind speed in July - Monrovia, CA
  • Average wind speed in July: 4.9mph

The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).

Average humidity in July
Monrovia, CA

Average humidity in July - Monrovia, CA
  • Average humidity in July: 50%

The months with the highest relative humidity are March and May (56%).
The month with the lowest relative humidity is November (46%).

Average rainfall in July
Monrovia, CA

Average rainfall in July - Monrovia, CA
  • Average rainfall in July: 0.2"

The wettest months (with the highest rainfall) are February and December (1.77").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in July
Monrovia, CA

Average rainfall days in July - Monrovia, CA
  • Average rainfall days in July: 3.2 days

The month with the highest number of rainy days is March (7.4 days).
The month with the least rainy days is June (1.1 days).

Average daylight in July /
Average sunshine in July
Monrovia, CA

Average daylight in July / Average sunshine in July - Monrovia, CA
  • Average daylight in July: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in July: 12h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 54min).

Average sunshine days in July
Monrovia, CA

Average sunshine days in July - Monrovia, CA
  • Average sunshine days in July: 25.6 days

The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (21 days).

Average UV index in July
Monrovia, CA

Average UV index in July - Monrovia, CA
  • Average UV index in July: 6

The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in July
Monrovia, CA

Average cloud cover in July - Monrovia, CA
  • Average cloud cover in July: 6

The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).

Average visibility in July
Monrovia, CA

Average visibility in July - Monrovia, CA
  • Average visibility in July: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Monrovia, California, USA

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