July weather forecast
Jamestown, CA

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Weather in July

July in Jamestown, California, is a tropical summer month, with an average temperature fluctuating between 62.2°F (16.8°C) and 91.4°F (33°C).

Temperature

July proves to be the warmest month, recording an average peak temperature of 91.4°F (33°C) and a minimum temperature of 62.2°F (16.8°C).

Humidity

With an average relative humidity of 32%, July is the least humid month.

Rainfall

July and August are months with the least rain when the rain falls for 1.9 days and typically aggregates up to 0.04" (1mm) of rain.

Snowfall

In Jamestown, snow does not fall in April through October.

Daylight

The average length of the day in July is 14h and 29min.
On the first day of July, sunrise is at 5:43 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 8:11 pm PDT.

Sunshine

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

UV index

The months with the highest UV index are June and July, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 7 during July leads to these instructions:
Inhibit overexposure. Warding off sun damage is of utmost importance. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.

Frequently asked questions

What part of the year is the hottest?

With average high temperatures of 91.4°F (33°C) and lows of 62.2°F (16.8°C), July is the warmest month.

How hot is it in July?

The high-temperature during July is 91.4°F (33°C) and the low-temperature is 62.2°F (16.8°C). In June, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 82.4°F (28°C).

What is the least humid month?

The least humid month is July, with an average relative humidity of 32%.

What is the average humidity in July?

The average relative humidity in July is 32%.

What is the driest month?

The months with the least rainfall are July and August Rain falls for 1.9 days and accumulates 0.04" (1mm) of rain.

How much does it rain in July?

In Jamestown, in July, it is raining for 1.9 days, with typically 0.04" (1mm) of accumulated precipitation.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in July?

In Jamestown, California, the average day length in July is 14h and 29min.

When are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:43 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 8:11 pm PDT.

What month has the most sunshine?

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

How long on average sun shines in July?

In July, the average sunshine duration is 12.1h.

What is the month with the highest UV index?

June and July, with an average maximum UV index of 7, are months with the highest UV index.

How high is the UV index in July?

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

Average temperature in July
Jamestown, CA

Average temperature in July - Jamestown, CA
  • Average high temperature in July: 91.4°F

The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is December (52.9°F).

  • Average low temperature in July: 62.2°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is December (37.2°F).

Average pressure in July
Jamestown, CA

Average pressure in July - Jamestown, CA
  • Average pressure in July: 29.93"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in July
Jamestown, CA

Average wind speed in July - Jamestown, CA
  • Average wind speed in July: 5.3mph

The windiest months (with the highest average wind speed) are February, March and April (5.7mph).
The calmest months (with the lowest average wind speed) are November and December (4.7mph).

Average humidity in July
Jamestown, CA

Average humidity in July - Jamestown, CA
  • Average humidity in July: 32%

The month with the highest relative humidity is March (70%).
The month with the lowest relative humidity is July (32%).

Average rainfall in July
Jamestown, CA

Average rainfall in July - Jamestown, CA
  • Average rainfall in July: 0.04"

The wettest month (with the highest rainfall) is March (4.76").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in July
Jamestown, CA

Average rainfall days in July - Jamestown, CA
  • Average rainfall days in July: 1.9 days

The month with the highest number of rainy days is March (13.4 days).
The month with the least rainy days is August (1.4 days).

Average snowfall in July
Jamestown, CA

Average snowfall in July - Jamestown, CA
  • Average snowfall in July: 0"

The month with the highest snowfall is February (2.72").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in July
Jamestown, CA

Average snowfall days in July - Jamestown, CA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in July / Average sunshine in July - Jamestown, CA
  • Average daylight in July: 14h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in July: 12h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

Average sunshine days in July
Jamestown, CA

Average sunshine days in July - Jamestown, CA
  • Average sunshine days in July: 28.4 days

The months with the most sunshine days are July and August (28.4 days).
The month with the least sunshine days is March (16.8 days).

Average UV index in July
Jamestown, CA

Average UV index in July - Jamestown, CA
  • Average UV index in July: 7

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is November (UV index 2).

Average cloud cover in July
Jamestown, CA

Average cloud cover in July - Jamestown, CA
  • Average cloud cover in July: 5

The month with the most cloud cover is March (Cloud cover 35).
The months with the least cloud cover are July and August (Cloud cover 5).

Average visibility in July
Jamestown, CA

Average visibility in July - Jamestown, 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).

Jamestown, California, USA

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