Climate and monthly weather forecast
Washington, OK

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Weather in January

January, the same as December, in Washington, Oklahoma, is a frosty winter month, with an average temperature fluctuating between 49.5°F (9.7°C) and 33.3°F (0.7°C). January, recording an average high temperature of 49.5°F (9.7°C) and a low temperature of 33.3°F (0.7°C), is Washington's coldest month. Weather in January »

Weather in February

The last month of the winter, February, is a fresh month in Washington, Oklahoma, with an average temperature ranging between min 36°F (2.2°C) and max 52.3°F (11.3°C). The advent of February presents an average high-temperature of a cool 52.3°F (11.3°C), maintaining a close correlation with the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is an enjoyable month in Washington, Oklahoma, with an average temperature fluctuating between 45.5°F (7.5°C) and 63.1°F (17.3°C). The shift from February to March is marked by an increase in the average high-temperature, moving from a cool 52.3°F (11.3°C) to a comfortable 63.1°F (17.3°C). Weather in March »

Weather in April

April is a pleasant spring month in Washington, Oklahoma, with an average temperature ranging between max 71.1°F (21.7°C) and min 52.2°F (11.2°C). The start of April is characterized by a subtle increase in the average high-temperature, transitioning from a refreshing 63.1°F (17.3°C) in March to an agreeable 71.1°F (21.7°C). Weather in April »

Weather in May

The last month of the spring, May, is a warm month in Washington, Oklahoma, with an average temperature fluctuating between 60.1°F (15.6°C) and 77.7°F (25.4°C). The onset of May introduces a subtle rise in the average high-temperature, nudging from a pleasant 71.1°F (21.7°C) in April to a moderately hot 77.7°F (25.4°C). Weather in May »

Weather in June

June, the first month of the summer in Washington, is a tropical month, with temperature in the range of an average low of 69.8°F (21°C) and an average high of 88.2°F (31.2°C). As May gives way to June, the average high-temperature displays an increase, moving from a warm 77.7°F (25.4°C) to a tropical 88.2°F (31.2°C). Weather in June »

Weather in July

July, the same as June, in Washington, Oklahoma, is another tropical summer month, with an average temperature varying between 72.9°F (22.7°C) and 93°F (33.9°C). July and August are the warmest months, with an average high-temperature of 93°F (33.9°C). Throughout July, the heat index is calculated to be a blistering 111.2°F (44°C). Weather in July »

Weather in August

August, the last month of the summer in Washington, is another hot month, with an average temperature varying between 93°F (33.9°C) and 71.6°F (22°C). Washington sees the highest average temperatures during the months of July and August, peaking at 93°F (33.9°C). The heat index value during August is calculated to be a scorching 107.6°F (42°C). Weather in August »

Weather in September

September, the first month of the autumn in Washington, is also a moderately hot month, with an average temperature ranging between min 65.7°F (18.7°C) and max 84.7°F (29.3°C). A modest decline in the average high-temperature is seen during September, decreasing from a tropical 93°F (33.9°C) in August to a warm 84.7°F (29.3°C). Weather in September »

Weather in October

October, the same as September, in Washington, Oklahoma, is an agreeable autumn month, with an average temperature ranging between min 53.4°F (11.9°C) and max 71.8°F (22.1°C). The transition into October is accompanied by a temperature decrease, with the average high-temperature shifting from a moderately hot 84.7°F (29.3°C) in September to an agreeable 71.8°F (22.1°C). Weather in October »

Weather in November

November, the last month of the autumn in Washington, is another mild month, with an average temperature ranging between max 60.1°F (15.6°C) and min 43.2°F (6.2°C). In the transition to November, Washington observes a drop in the average high-temperature, moving from an agreeable 71.8°F (22.1°C) in October to a refreshing 60.1°F (15.6°C). Weather in November »

Weather in December

The first month of the winter, December, is also a frosty month in Washington, Oklahoma, with an average temperature varying between 34.7°F (1.5°C) and 49.6°F (9.8°C). Washington's transition into December involves a shift in temperature, receding from a moderate 60.1°F (15.6°C) in November to a frosty 49.6°F (9.8°C). Weather in December »

Frequently asked questions

What is the coldest month?

In Washington, the lowest temperatures are generally noted in January, averaging a high of 49.5°F (9.7°C) and a low of 33.3°F (0.7°C).

How many days does it rain?

In Washington, during the entire year, the rain falls for 116.5 days and collects up to 24.21" (615mm) of precipitation.

When does it snow?

Months with snowfall are January through April, November and December.

How many days does it snow?

In Washington, during the entire year, snow falls for 6.5 days and aggregates up to 3.74" (95mm) of snow.

What is the snowiest month?

The month with the most snowfall is February, when snow falls for 2.3 days and typically aggregates up to 1.65" (42mm) of snow.

When is Daylight Saving Time (DST)?

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

What is the most humid month?

The most humid month is May, with an average relative humidity of 76%.

What is the wettest month?

May is the month with the most rainfall. Rain falls for 13.5 days and accumulates 3.54" (90mm) of precipitation.

When it does not snow?

In Washington, Oklahoma, snow does not fall in May through October.

When are the longest days?

June has the longest days of the year, with an average of 14h and 30min of daylight.

When is the highest UV index in Washington?

June through August, with an average maximum UV index of 7, are months with the highest UV index.

What time of the year is the hottest in Washington?

During July and August, Washington experiences its peak temperatures, averaging a high-temperature of 93°F (33.9°C).

What month has the most sunshine?

With an average of 11.1h of sunshine, July has the most sunshine of the year.

What is the least humid month?

With an average relative humidity of 60%, August is the least humid month.

What is the driest month?

November is the month with the least rainfall. Rain falls for 7 days and accumulates 0.98" (25mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 48min of daylight.

What is the month with the least sunshine?

With an average of 5.9h of sunshine, December has the least sunshine of the year in Washington.

What is the month with the lowest UV index?

The month with the lowest UV index is December, with an average maximum UV index of 2.

Average temperature
Washington, OK

Average temperature - Washington, OK

The warmest months (with the highest average high temperature) are July and August (93°F).
The month with the lowest average high temperature is January (49.5°F).

The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).

Average pressure
Washington, OK

Average pressure - Washington, OK

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed
Washington, OK

Average wind speed - Washington, OK

The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).

Average humidity
Washington, OK

Average humidity - Washington, OK

The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (60%).

Average rainfall
Washington, OK

Average rainfall - Washington, OK

The wettest month (with the highest rainfall) is May (3.54").
The driest month (with the least rainfall) is November (0.98").

Average rainfall days
Washington, OK

Average rainfall days - Washington, OK

The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is January (5.2 days).

Average snowfall
Washington, OK

Average snowfall - Washington, OK

The month with the highest snowfall is February (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Washington, OK

Average snowfall days - Washington, OK

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Washington, OK

Average daylight / Average sunshine - Washington, OK

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

Average sunshine days
Washington, OK

Average sunshine days - Washington, OK

The month with the most sunshine days is January (24 days).
The month with the least sunshine days is May (14.4 days).

Average visibility
Washington, OK

Average visibility - Washington, OK

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).

Washington, Oklahoma, USA

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