Climate and monthly weather forecast
McCormick, WA

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Weather in January

January is a chilly winter month in McCormick, Washington, with an average temperature fluctuating between 44.6°F (7°C) and 33.8°F (1°C). In January, McCormick notes an average high-temperature of a chilly 44.6°F (7°C), hardly different from the preceding month. Weather in January »

Weather in February

The last month of the winter, February, is also a frosty month in McCormick, Washington, with temperature in the range of an average low of 33.4°F (0.8°C) and an average high of 46.4°F (8°C). McCormick, Washington, commences February with an average high-temperature of a still chilly 46.4°F (8°C), maintaining a close resemblance to the previous month. Weather in February »

Weather in March

March, the first month of the spring in McCormick, is a fresh month, with temperature in the range of an average low of 35.1°F (1.7°C) and an average high of 50.5°F (10.3°C). The average high-temperature during March registers at a cool 50.5°F (10.3°C), maintaining a close resemblance to the previous month. Weather in March »

Weather in April

April is a refreshing spring month in McCormick, Washington, with an average temperature ranging between min 36.9°F (2.7°C) and max 56.1°F (13.4°C). With the onset of April, McCormick experiences a subtle temperature shift, with the average high-temperature moving from a cool 50.5°F (10.3°C) in March to a refreshing 56.1°F (13.4°C). Weather in April »

Weather in May

The last month of the spring, May, is a refreshing month in McCormick, Washington, with temperature in the range of an average high of 64.8°F (18.2°C) and an average low of 40.8°F (4.9°C). May's onset is marked by a subtle temperature increase, moving from a moderate 56.1°F (13.4°C) in April to a still refreshing 64.8°F (18.2°C). Weather in May »

Weather in June

The first month of the summer, June, is a pleasant month in McCormick, Washington, with temperature in the range of an average high of 69.4°F (20.8°C) and an average low of 44.8°F (7.1°C). The advent of June reveals an average high-temperature of an agreeable 69.4°F (20.8°C), showing minimal difference from the prior month. Weather in June »

Weather in July

July in McCormick, Washington, is a warm summer month, with an average temperature varying between 48.4°F (9.1°C) and 76.6°F (24.8°C). With the onset of July, McCormick observes a minor temperature ascent, with the average high-temperature adjusting from June's pleasant 69.4°F (20.8°C) to a moderately hot 76.6°F (24.8°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in McCormick, Washington, with an average temperature varying between 77.5°F (25.3°C) and 50°F (10°C). The month of August sees the highest average temperatures, reaching 77.5°F (25.3°C) at the peak and 50°F (10°C) at the low. Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in McCormick, Washington, with an average temperature ranging between max 70.3°F (21.3°C) and min 46.9°F (8.3°C). The start of September involves a subtle temperature drop, shifting from a moderately hot 77.5°F (25.3°C) in August to an agreeable 70.3°F (21.3°C). Weather in September »

Weather in October

October, like September, is another refreshing autumn month in McCormick, Washington, with an average temperature ranging between min 42.1°F (5.6°C) and max 58.8°F (14.9°C). The move into October indicates a reduction in the average high-temperature, down from September's pleasant 70.3°F (21.3°C) to a mild 58.8°F (14.9°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in McCormick, Washington, with an average temperature ranging between max 48.4°F (9.1°C) and min 37.9°F (3.3°C). The arrival of November indicates a decrease in the average high-temperature, moving from a mild 58.8°F (14.9°C) in October to a frosty 48.4°F (9.1°C). Weather in November »

Weather in December

December, the first month of the winter in McCormick, is still a cold month, with temperature in the range of an average high of 42.6°F (5.9°C) and an average low of 33.1°F (0.6°C). In McCormick, the lowest temperatures are generally noted in December, averaging a high of 42.6°F (5.9°C) and a low of 33.1°F (0.6°C). Weather in December »
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the most humid month in McCormick?

The months with the highest humidity in McCormick, Washington, are January, February, November and December, with an average relative humidity of 89%.

What is the rainiest month in McCormick?

The month with the most rainfall is January, when the rain falls for 18.6 days and typically aggregates up to 5.51" (140mm) of precipitation.

How many days does it rain in McCormick?

In McCormick, during the entire year, the rain falls for 185.5 days and collects up to 36.1" (917mm) of precipitation.

When does it snow in McCormick?

January through March, November and December are months with snowfall.

How many days does it snow in McCormick?

Throughout the year, in McCormick, there are 9 snowfall days, and 5.59" (142mm) of snow is accumulated.

What are the months with the lowest UV index in McCormick?

The months with the lowest UV index in McCormick, Washington, are January, February, November and December, with an average maximum UV index of 2.

What is the snowiest month in McCormick?

February is the month with the most snowfall. Snow falls for 3.5 days and accumulates 1.93" (49mm) of snow.

When is Daylight Saving Time (DST) in McCormick?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.

When it does not snow in McCormick?

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

When are the longest days in McCormick?

June has the longest days of the year, with an average of 15h and 48min of daylight.

What is the least humid month in McCormick?

The least humid month is July, with an average relative humidity of 73%.

What is the driest month in McCormick?

July is the month with the least rainfall. Rain falls for 6.5 days and accumulates 0.47" (12mm) of precipitation.

When is the highest UV index in McCormick?

July is the month with the highest UV index in McCormick, Washington, with an average maximum UV index of 5.

What month is the hottest in McCormick?

August, known for its average high temperature of 77.5°F (25.3°C) and an average low temperature of 50°F (10°C), is the warmest month in McCormick, Washington.

What month has the most sunshine in McCormick?

August has the most sunshine of the year in McCormick, with an average of 10.2h of sunshine.

What is the coldest time of year in McCormick?

December, with its average high-temperature of 42.6°F (5.9°C) and an average low-temperature of 33.1°F (0.6°C), holds the record as the coldest month in McCormick.

What is the month with the shortest days in McCormick?

With an average of 8h and 36min of daylight, December has the shortest days of the year.

What is the month with the least sunshine in McCormick?

With an average of 3.5h of sunshine, December has the least sunshine of the year in McCormick, Washington.

Average temperature
McCormick, WA

Average temperature - McCormick, WA

The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (42.6°F).

The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).

Average pressure
McCormick, WA

Average pressure - McCormick, WA

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.02"Hg).

Average wind speed
McCormick, WA

Average wind speed - McCormick, WA

The windiest months (with the highest average wind speed) are January, March and November (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).

Average humidity
McCormick, WA

Average humidity - McCormick, WA

The months with the highest relative humidity are January, February, November and December (89%).
The month with the lowest relative humidity is July (73%).

Average rainfall
McCormick, WA

Average rainfall - McCormick, WA

The wettest month (with the highest rainfall) is January (5.51").
The driest month (with the least rainfall) is July (0.47").

Average rainfall days
McCormick, WA

Average rainfall days - McCormick, WA

The month with the highest number of rainy days is March (21.5 days).
The month with the least rainy days is August (6.4 days).

Average snowfall
McCormick, WA

Average snowfall - McCormick, WA

The month with the highest snowfall is February (1.93").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days
McCormick, WA

Average snowfall days - McCormick, WA

The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
McCormick, WA

Average daylight / Average sunshine - McCormick, WA

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).

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).

Average sunshine days
McCormick, WA

Average sunshine days - McCormick, WA

The months with the most sunshine days are July and August (20.8 days).
The month with the least sunshine days is February (7.6 days).

Average UV index
McCormick, WA

Average UV index - McCormick, WA

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover
McCormick, WA

Average cloud cover - McCormick, WA

The months with the most cloud cover are January, February and December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 38).

Average visibility
McCormick, WA

Average visibility - McCormick, WA

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).

McCormick, Washington, USA

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