July weather forecastJamestown, CA
July
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 14h and 30min
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 6min
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: 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: 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: 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: 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).
