June weather forecastPomona, CA
June
Weather in June
June marks the official start of Summer for Pomona. The city basks under the brightest month of the year. With 14.4 hours of daylight, prolonged outdoor activities become a prominent feature of Pomona's daily life. Changes in wind patterns, lesser cloud cover, and a steady increase in temperature all hint towards the summer season taking center stage. The noticeable jump in UV index also reminds visitors to pack their sunscreens while they get the most out of Pomona's longest sunny days.Temperature
June in Pomona brings a slight increase in the average high-temperature, progressing from 76.3°F (24.6°C) in May to a still moderately hot 82.9°F (28.3°C). June nights showcase a dramatic shift from daytime highs to an average temperature of 58.5°F (14.7°C).Heat index
For most parts of June, the heat index is evaluated at 84.2°F (29°C). Prolonged activity during exposure might result in a state of fatigue and cause heat cramps.Heat index determinations are made taking into account the shade and light air movements. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Humidity
In Pomona, the average relative humidity in June is 54%.Rainfall
The months with the least rainfall are June and August Rain falls for 0.8 days and accumulates 0.04" (1mm) of rain.Snowfall
In Pomona, snow does not fall in January, March through December.Daylight
The month with the longest days in Pomona, California, is June, with an average of 14h and 24min of daylight.On the first day of June, sunrise is at 5:40 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:06 pm PDT.
Sunshine
The average sunshine in June in Pomona is 12h.UV index
In June, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: In June, a regular UV index of 6 translates into these guidelines:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Pomona, CA
- Average high temperature in June: 82.9°F
The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is December (63.1°F).
- Average low temperature in June: 58.5°F
The month with the highest average low temperature is August (65.7°F).
The coldest months (with the lowest average low temperature) are February and December (46.8°F).
Average pressure in June
Pomona, CA
- Average pressure in June: 29.87"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in June
Pomona, CA
- Average wind speed in June: 5.3mph
The windiest months (with the highest average wind speed) are April and May (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).
Average humidity in June
Pomona, CA
- Average humidity in June: 54%
The month with the highest relative humidity is May (56%).
The months with the lowest relative humidity are August and November (45%).
Average rainfall in June
Pomona, CA
- Average rainfall in June: 0.04"
The wettest months (with the highest rainfall) are February and December (1.65").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in June
Pomona, CA
- Average rainfall days in June: 0.8 days
The month with the highest number of rainy days is March (7.6 days).
The month with the least rainy days is June (0.8 days).
Average snowfall days in June
Pomona, CA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in June /
Average sunshine in June
Pomona, CA
- Average daylight in June: 14h and 24min
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 June: 12h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).
Average sunshine days in June
Pomona, CA
- Average sunshine days in June: 28.7 days
The month with the most sunshine days is June (28.7 days).
The month with the least sunshine days is February (21.1 days).
Average UV index in June
Pomona, CA
- Average UV index in June: 6
The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in June
Pomona, CA
- Average cloud cover in June: 8
The months with the most cloud cover are February, March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in June
Pomona, 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).
