June weather forecastPomona, WA
June
Weather in June
June, the first month of the summer in Pomona, is a warm month, with temperature in the range of an average low of 51.3°F (10.7°C) and an average high of 74.8°F (23.8°C).Temperature
As June arrives, Pomona's weather shows a minor increase in high-temperatures, edging from May's enjoyable 67.8°F (19.9°C) to a warm 74.8°F (23.8°C). Throughout June, Pomona acknowledges a distinct difference between its daytime highs and the steady low average of 51.3°F (10.7°C).Humidity
The average relative humidity in June is 49%.Rainfall
In June, the rain falls for 5 days. Throughout June, 0.28" (7mm) of precipitation is accumulated. Throughout the year, there are 87.6 rainfall days, and 5.94" (151mm) of precipitation is accumulated.Snowfall
In Pomona, snow does not fall in May through August and October.Daylight
With an average of 15h and 48min of daylight, June has the longest days of the year.On the first day of June, sunrise is at 5:11 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 5:12 am and sunset at 8:59 pm PDT.
Sunshine
In June, the average sunshine is 11.9h.UV index
In June, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In June, the maximum UV index of 5 translates into these guidelines:
Undertake protective steps - Recommendations to avoid sunburn are issued. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Pomona, WA
- Average high temperature in June: 74.8°F
The warmest month (with the highest average high temperature) is August (85.1°F).
The month with the lowest average high temperature is December (36°F).
- Average low temperature in June: 51.3°F
The month with the highest average low temperature is August (58.8°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).
Average pressure in June
Pomona, WA
- Average pressure in June: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in June
Pomona, WA
- Average wind speed in June: 7.4mph
The windiest month (with the highest average wind speed) is June (7.4mph).
The calmest month (with the lowest average wind speed) is December (4.2mph).
Average humidity in June
Pomona, WA
- Average humidity in June: 49%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are July and August (41%).
Average rainfall in June
Pomona, WA
- Average rainfall in June: 0.28"
The wettest month (with the highest rainfall) is December (0.87").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in June
Pomona, WA
- Average rainfall days in June: 5 days
The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is July (2.3 days).
Average snowfall in June
Pomona, WA
- Average snowfall in June: 0"
The month with the highest snowfall is December (3.07").
The months with the least snowfall are May, June, July, August and October (0").
Average snowfall days in June
Pomona, WA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is December (5.7 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in June /
Average sunshine in June
Pomona, WA
- Average daylight in June: 15h and 48min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in June: 11h and 54min
The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in June
Pomona, WA
- Average sunshine days in June: 23.3 days
The month with the most sunshine days is July (27.6 days).
The month with the least sunshine days is February (15.5 days).
Average UV index in June
Pomona, WA
- Average UV index in June: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in June
Pomona, WA
- Average cloud cover in June: 16
The month with the most cloud cover is January (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in June
Pomona, WA
- Average visibility in June: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





