Contents
- Weather in June
- Frequently asked questions
- Average temperature in June
- Average pressure in June
- Average wind speed in June
- Average humidity in June
- Average rainfall in June
- Average rainfall days in June
- Average daylight in June
- Average sunshine in June
- Average sunshine days in June
- Average UV index in June
- Average cloud cover in June
- Average visibility in June
Weather in June
Temperature
June marks a minor ascent in the average high-temperature, adjusting from May's agreeable 72.5°F (22.5°C) to a moderately hot 78.4°F (25.8°C). Johnstown registers a significant drop in temperature in June, with average nighttime lows of 56.8°F (13.8°C).Humidity
In Johnstown, the average relative humidity in June is 62%.Rainfall
The month with the least rainfall is June, when the rain falls for 1.4 days and typically collects 0.04" (1mm) of precipitation.Daylight
June has the longest days of the year, with an average of 14h and 18min of daylight.On the first day of the month, sunrise is at 5:39 am and sunset at 7:51 pm. On the last day of June, sunrise is at 5:42 am and sunset at 7:59 pm PDT.
Sunshine
The months with the most sunshine in Johnstown 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 of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 6 in June leads to these guidelines:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are June temperatures?
What is the average humidity in June?
What is the driest month?
How much does it rain in June?
When are the longest days?
What is the average length of the day in June?
What time are sunrise and sunset in June?
What is the month with the most sunshine in Johnstown?
How long on average sun shines in June?
What are the months with the highest UV index?
What is the UV index reading in June?
Average temperature in June
Johnstown, CA
- Average high temperature in June: 78.4°F
The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is December (63.7°F).
- Average low temperature in June: 56.8°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 (46°F).
Average pressure in June
Johnstown, CA
- Average pressure in June: 29.86"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in June
Johnstown, CA
- Average wind speed in June: 4.7mph
The windiest months (with the highest average wind speed) are April and May (5.3mph).
The calmest months (with the lowest average wind speed) are August, September and October (4.2mph).
Average humidity in June
Johnstown, CA
- Average humidity in June: 62%
The month with the highest relative humidity is May (65%).
The month with the lowest relative humidity is November (52%).
Average rainfall in June
Johnstown, CA
- Average rainfall in June: 0.04"
The wettest month (with the highest rainfall) is February (1.06").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in June
Johnstown, CA
- Average rainfall days in June: 1.4 days
The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is June (1.4 days).
Average daylight in June /
Average sunshine in June
Johnstown, CA
- Average daylight in June: 14h and 2min
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 1min
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
Johnstown, CA
- Average sunshine days in June: 28 days
The month with the most sunshine days is June (28 days).
The month with the least sunshine days is July (20.7 days).
Average UV index in June
Johnstown, CA
- Average UV index in June: 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 June
Johnstown, CA
- Average cloud cover in June: 8
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
Johnstown, 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).
Johnstown, California, USA
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