Climate and monthly weather forecast
Washington, IN

Weather in January

January, the same as December, is a wintry winter month in Washington, Indiana, with an average temperature varying between 37°F (2.8°C) and 24.4°F (-4.2°C). January is the coldest month, with an average high-temperature of 37°F (2.8°C) and an average low-temperature of 24.4°F (-4.2°C). Weather in January »

Weather in February

February, the last month of the winter in Washington, is also a wintry month, with an average temperature ranging between max 42.1°F (5.6°C) and min 28.2°F (-2.1°C). In Washington, Indiana, the average high-temperature in February is essentially the same as in January - a still wintry 42.1°F (5.6°C). Weather in February »

Weather in March

The first month of the spring, March, is a cool month in Washington, Indiana, with an average temperature fluctuating between 53.1°F (11.7°C) and 37.8°F (3.2°C). In Washington, the average high-temperature in March increases from a wintry 42.1°F (5.6°C) in February to a cool 53.1°F (11.7°C). Weather in March »

Weather in April

April in Washington, Indiana, is a comfortable spring month, with temperature in the range of an average high of 64.2°F (17.9°C) and an average low of 47.3°F (8.5°C). In April, the average high-temperature increases from a cool 53.1°F (11.7°C) in March to an enjoyable 64.2°F (17.9°C). Weather in April »

Weather in May

The last month of the spring, May, is a warm month in Washington, Indiana, with temperature in the range of an average low of 57.4°F (14.1°C) and an average high of 73.9°F (23.3°C). In Washington, the average high-temperature in May increases from a comfortable 64.2°F (17.9°C) in April to a moderately hot 73.9°F (23.3°C). Weather in May »

Weather in June

June, the first month of the summer in Washington, is also a moderately hot month, with temperature in the range of an average low of 64.9°F (18.3°C) and an average high of 82°F (27.8°C). In June, the average high-temperature marginally rises from 73.9°F (23.3°C) in May to a still warm 82°F (27.8°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Washington, Indiana, with an average temperature varying between 66.9°F (19.4°C) and 84.6°F (29.2°C). July is the warmest month, with an average high-temperature of 84.6°F (29.2°C) and an average low-temperature of 66.9°F (19.4°C). The average heat index in July is estimated at a sweltering 95°F (35°C). Weather in July »

Weather in August

August, the last month of the summer in Washington, is also a moderately hot month, with an average temperature varying between 83.5°F (28.6°C) and 65.5°F (18.6°C). In August, the average high-temperature is relatively the same as in July - a still warm 83.5°F (28.6°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Washington, Indiana, with an average temperature fluctuating between 78.6°F (25.9°C) and 60.1°F (15.6°C). In September, the average high-temperature is essentially the same as in August - a still warm 78.6°F (25.9°C). Weather in September »

Weather in October

October, like September, in Washington, Indiana, is another comfortable autumn month, with an average temperature ranging between max 66°F (18.9°C) and min 48.6°F (9.2°C). In October, the average high-temperature decreases from a moderately hot 78.6°F (25.9°C) in September to an enjoyable 66°F (18.9°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Washington, Indiana, with an average temperature ranging between min 37.8°F (3.2°C) and max 51.8°F (11°C). In November, the average high-temperature decreases from a comfortable 66°F (18.9°C) in October to a cool 51.8°F (11°C). Weather in November »

Weather in December

December, the first month of the winter in Washington, is also a wintry month, with temperature in the range of an average high of 42.3°F (5.7°C) and an average low of 30.9°F (-0.6°C). In Washington, the average high-temperature in December drops from a cool 51.8°F (11°C) in November to a wintry 42.3°F (5.7°C). Weather in December »
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FAQ

What is the coldest month in Washington?

The coldest month is January, with an average high-temperature of 37°F (2.8°C) and an average low-temperature of 24.4°F (-4.2°C).

How many days does it rain in Washington?

In Washington, during the entire year, the rain falls for 153.1 days and collects up to 31.02" (788mm) of precipitation.

When does it snow in Washington?

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

When does it snow the most in Washington?

The month with the most snowfall in Washington, Indiana, is January, when snow falls for 7.1 days and typically aggregates up to 1.69" (43mm) of snow.

How many days does it snow in Washington?

Throughout the year, in Washington, Indiana, there are 24.8 snowfall days, and 6.65" (169mm) of snow is accumulated.

When is the lowest UV index in Washington?

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

When is Daylight Saving Time (DST) in Washington?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Washington, Indiana, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from EDT to EST.

What is the wettest month in Washington?

April is the month with the most rainfall in Washington. Rain falls for 16 days and accumulates 3.98" (101mm) of precipitation.

What is the most humid month in Washington?

With an average relative humidity of 81%, May is the most humid month in Washington, Indiana.

When it does not snow in Washington?

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

When are the longest days in Washington?

June has the longest days of the year in Washington, Indiana, with an average of 14h and 50min of daylight.

What month has the most sunshine in Washington?

The month with the most sunshine in Washington, Indiana, is June, with an average of 10.5h of sunshine.

What are the months with the highest UV index in Washington?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Washington, Indiana.

What is the warmest month in Washington?

The warmest month is July, with an average high-temperature of 84.6°F (29.2°C) and an average low-temperature of 66.9°F (19.4°C).

What is the driest month in Washington?

September is the month with the least rainfall in Washington. Rain falls for 11.5 days and accumulates 1.61" (41mm) of precipitation.

What is the least humid month in Washington?

October is the least humid month, with an average relative humidity of 72%.

What is the month with the shortest days in Washington?

With an average of 9h and 31min of daylight, December has the shortest days of the year in Washington, Indiana.

What is the month with the least sunshine in Washington?

December has the least sunshine of the year, with an average of 4.5h of sunshine.

Average temperature
Washington, IN

Average temperature - Washington, IN

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (37°F).

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).

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Average pressure
Washington, IN

Average pressure - Washington, IN

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed
Washington, IN

Average wind speed - Washington, IN

The windiest month (with the highest average wind speed) is February (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

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Average rainfall
Washington, IN

Average rainfall - Washington, IN

The wettest month (with the highest rainfall) is April (3.98").
The driest month (with the least rainfall) is September (1.61").

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Average rainfall days
Washington, IN

Average rainfall days - Washington, IN

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (9.4 days).

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Average snowfall
Washington, IN

Average snowfall - Washington, IN

The month with the highest snowfall is January (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days
Washington, IN

Average snowfall days - Washington, IN

The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July and August (0 days).

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Average daylight / Average sunshine
Washington, IN

Average daylight / Average sunshine - Washington, IN

The month with the longest days is June (Average daylight: 14h and 50min).
The month with the shortest days is December (Average daylight: 9h and 31min).

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 30min).

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Average sunshine days
Washington, IN

Average sunshine days - Washington, IN

The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is May (10.5 days).

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Average UV index
Washington, IN

Average UV index - Washington, IN

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average visibility
Washington, IN

Average visibility - Washington, IN

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).

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