June weather forecastJulian, CA
June
Weather in June
June in Julian, California, marks the arrival of summer with significant increases in temperature. There is also a marked disparity in temperature highs between June and the subsequent month. Snowfall ceases entirely and the city basks in the glory of the longest daylight hours of the year, coupled with maximum sunshine hours. The wind speed and overall cloud cover decrease, making way for the city's sunniest days. The weather fosters an ideal environment for outdoor activities and exploration.Temperature
As May gives way to June, the average high-temperature displays a slight ascent, adjusting from 73.6°F (23.1°C) to a still moderately hot 81.3°F (27.4°C). A steep decline to a refreshing 56.3°F (13.5°C) characterizes the June nights in Julian.Heat index
The heat index for June is calculated to be 82.4°F (28°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.Heat index specifics point out values are for conditions of shade and a slight breeze. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly critical for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Humidity
In June, the average relative humidity in Julian is 57%.Rainfall
The month with the least rainfall is June, when the rain falls for 1.5 days and typically collects 0.08" (2mm) of precipitation.Snowfall
June through October are months without snowfall.Daylight
The month with the longest days is June, with an average of 14h and 18min of daylight.On the first day of June, sunrise is at 5:38 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 7:59 pm PDT.
Sunshine
The months with the most sunshine are June and July, with an average of 12.1h of sunshine.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In June, a daily UV index of 6 turns into the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Julian, CA
- Average high temperature in June: 81.3°F
The warmest month (with the highest average high temperature) is August (87.3°F).
The month with the lowest average high temperature is December (61.3°F).
- Average low temperature in June: 56.3°F
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (44.2°F).
Average pressure in June
Julian, CA
- Average pressure in June: 29.85"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in June
Julian, CA
- Average wind speed in June: 5.1mph
The windiest month (with the highest average wind speed) is May (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.1mph).
Average humidity in June
Julian, CA
- Average humidity in June: 57%
The month with the highest relative humidity is May (62%).
The month with the lowest relative humidity is November (51%).
Average rainfall in June
Julian, CA
- Average rainfall in June: 0.08"
The wettest month (with the highest rainfall) is February (0.94").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in June
Julian, CA
- Average rainfall days in June: 1.5 days
The month with the highest number of rainy days is March (7.6 days).
The month with the least rainy days is June (1.5 days).
Average snowfall in June
Julian, CA
- Average snowfall in June: 0"
The month with the highest snowfall is March (6.7").
The months with the least snowfall are June, July, August, September and October (0").
Average daylight in June /
Average sunshine in June
Julian, CA
- Average daylight in June: 14h and 18min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in June: 12h and 6min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in June
Julian, CA
- Average sunshine days in June: 27.5 days
The month with the most sunshine days is June (27.5 days).
The month with the least sunshine days is July (19.4 days).
Average UV index in June
Julian, CA
- Average UV index in June: 6
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in June
Julian, CA
- Average cloud cover in June: 7
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in June
Julian, CA
- Average visibility in June: 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).





