June weather forecast and climate
Olympia, WA

The calm Capitol Lake overlooking the Washington State Capitol building in Olympia, Washington
The calm Capitol Lake overlooking the Washington State Capitol building in Olympia, Washington
June, the first month of the summer, in Olympia, is a pleasant month, with average temperature fluctuating between 45.3°F (7.4°C) and 70.3°F (21.3°C).

Temperature

In Olympia, the average high-temperature in June is relatively the same as in May - a pleasant 70.3°F (21.3°C). In June, in Olympia, the average low-temperature is 45.3°F (7.4°C).

Humidity

In June, the average relative humidity is 75%.

Rainfall

In June, the rain falls for 11.3 days. Throughout June, 1.26" (32mm) of precipitation is accumulated. In Olympia, during the entire year, the rain falls for 177.4 days and collects up to 37.05" (941mm) of precipitation.

Snowfall

In Olympia, Washington, snow does not fall in April through October.

Daylight

June has the longest days of the year in Olympia, with an average of 15.8h of daylight.

Sunshine

In June, the average sunshine in Olympia is 8.7h.

UV index

Months with the highest UV index are June and July, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in June in Olympia?

In Olympia, in June, the average high-temperature is 70.3°F (21.3°C), and the average low-temperature is 45.3°F (7.4°C).

What is the average humidity in June in Olympia?

The average relative humidity in June in Olympia, Washington, is 75%.

How many days does it rain in June in Olympia?

In Olympia, Washington, during June, the rain falls for 11.3 days and regularly aggregates up to 1.26" (32mm) of precipitation.

When it does not snow in Olympia?

In Olympia, Washington, snow does not fall in April through October.

When are the longest days in Olympia?

June has the longest days of the year in Olympia, with an average of 15.8h of daylight.

What is the average length of the day in June in Olympia?

In June, the average length of the day is 15.8h.

How long on average sun shines in June in Olympia?

In Olympia, Washington, the average sunshine in June is 8.7h.

What is the month with the highest UV index in Olympia?

June and July, with an average maximum UV index of 5, are months with the highest UV index in Olympia, Washington.

How high is the UV index in June in Olympia?

The average daily maximum UV index in June in Olympia, Washington, is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV radiation.
Average temperature in June - Olympia, WA
  • Average high temperature in June: 21.3°C

The warmest month (with the highest average high temperature) is August (25.9°C).
The month with the lowest average high temperature is December (6.1°C).

  • Average low temperature in June: 7.4°C

The month with the highest average low temperature is August (10.3°C).
The coldest month (with the lowest average low temperature) is December (0.8°C).

Average pressure in June - Olympia, WA
  • Average pressure in June: 1017.3mbar

The month with the highest atmospheric pressure is January (1018.9mbar).
The month with the lowest atmospheric pressure is March (1016.4mbar).

Average wind speed in June - Olympia, WA
  • Average wind speed in June: 7.2km/h

The windiest months (with the highest average wind speed) are March and November (7.4km/h).
The calmest month (with the lowest average wind speed) is September (6.1km/h).

Average humidity in June - Olympia, WA
  • Average humidity in June: 75%

Months with the highest relative humidity are January, November and December (89%).
The month with the lowest relative humidity is July (71%).

Average rainfall in June - Olympia, WA
  • Average rainfall in June: 32mm

The wettest month (with the highest rainfall) is December (147mm).
The driest month (with the least rainfall) is July (10mm).

Average rainfall days in June - Olympia, WA
  • Average rainfall days in June: 11.3 days

The month with the highest number of rainy days is March (20.4 days).
The month with the least rainy days is August (5.5 days).

Average snowfall in June - Olympia, WA
  • Average snowfall in June: 0mm

The month with the highest snowfall is February (59mm).
Months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in June - Olympia, WA
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is February (3.3 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in June / Average sunshine in June - Olympia, WA
  • Average daylight in June: 15.8h

The month with the longest days is June (Average daylight: 15.8h).
The month with the shortest days is December (Average daylight: 8.6h).

  • Average sunshine in June: 8.7h

The month with the most sunshine is August (Average sunshine: 10.2h).
The month with the least sunshine is December (Average sunshine: 3.4h).

Average sunshine days in June - Olympia, WA
  • Average sunshine days in June: 15.8 days

The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is February (8.4 days).

Average UV index in June - Olympia, WA
  • Average UV index in June: 5

Months with the highest UV index are June and July (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in June - Olympia, WA
  • Average cloud cover in June: 51

Months with the most cloud cover are January and December (Cloud cover 65).
Months with the least cloud cover are July and August (Cloud cover 35).

Average visibility in June - Olympia, WA
  • Average visibility in June: 8km

Months with the highest visibility are June, July and August (8km).
Months with the lowest visibility are January, February, November and December (6km).