Climate and monthly weather forecast
Defiance, PA

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Weather in January

January, like December, in Defiance, Pennsylvania, is an icy winter month, with an average temperature ranging between max 32.5°F (0.3°C) and min 20.1°F (-6.6°C). In Defiance, the lowest temperatures are generally noted in January, averaging a high of 32.5°F (0.3°C) and a low of 20.1°F (-6.6°C). Weather in January »

Weather in February

February, the last month of the winter in Defiance, is also a wintry month, with an average temperature fluctuating between 22.8°F (-5.1°C) and 37°F (2.8°C). Defiance experiences an average high-temperature of a still icy 37°F (2.8°C) in February, subtly different from January's 32.5°F (0.3°C). Weather in February »

Weather in March

March, the first month of the spring in Defiance, is a frosty month, with an average temperature ranging between min 30°F (-1.1°C) and max 46.2°F (7.9°C). The shift into March is accompanied by a temperature increase, with the average high-temperature rising from a cold 37°F (2.8°C) in February to a frosty 46.2°F (7.9°C). Weather in March »

Weather in April

April is a mild spring month in Defiance, Pennsylvania, with temperature in the range of an average low of 39.7°F (4.3°C) and an average high of 59°F (15°C). As Defiance transitions into April, a rise in the average high-temperature is observed, moving from a frosty 46.2°F (7.9°C) in March to a moderate 59°F (15°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Defiance, Pennsylvania, with temperature in the range of an average high of 69.8°F (21°C) and an average low of 49.6°F (9.8°C). May's arrival is marked by an increase in the average high-temperature, moving from a moderate 59°F (15°C) in April to an agreeable 69.8°F (21°C). Weather in May »

Weather in June

June, the first month of the summer in Defiance, is a moderately hot month, with temperature in the range of an average low of 55.9°F (13.3°C) and an average high of 77°F (25°C). June's onset is marked by a subtle temperature increase, moving from an agreeable 69.8°F (21°C) in May to a moderately hot 77°F (25°C). Weather in June »

Weather in July

July, like June, in Defiance, Pennsylvania, is a moderately hot summer month, with an average temperature ranging between max 82.4°F (28°C) and min 60.6°F (15.9°C). July is the month when Defiance sees the highest average temperatures, with a high of 82.4°F (28°C) and a low of 60.6°F (15.9°C). The heat index value during July is computed to be a hot 89.6°F (32°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Defiance, Pennsylvania, with an average temperature fluctuating between 80.2°F (26.8°C) and 58.6°F (14.8°C). With the onset of August, the average high-temperature stands at a still warm 80.2°F (26.8°C), closely aligned with July's 82.4°F (28°C). Weather in August »

Weather in September

September, the first month of the autumn in Defiance, is also an agreeable month, with an average temperature ranging between max 73°F (22.8°C) and min 53.1°F (11.7°C). As September arrives, Defiance's weather displays a minor decrease in high-temperatures, transitioning from August's moderately hot 80.2°F (26.8°C) to a pleasant 73°F (22.8°C). Weather in September »

Weather in October

October, like September, in Defiance, Pennsylvania, is another enjoyable autumn month, with an average temperature ranging between max 61°F (16.1°C) and min 44.1°F (6.7°C). In Defiance, entering October brings a temperature decrement, reducing from September's agreeable 73°F (22.8°C) to an enjoyable 61°F (16.1°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Defiance, Pennsylvania, with temperature in the range of an average high of 48°F (8.9°C) and an average low of 32.7°F (0.4°C). With November's onset, the weather shows a temperature decrease, transitioning from a comfortable 61°F (16.1°C) in October to a frosty 48°F (8.9°C). Weather in November »

Weather in December

December, the first month of the winter in Defiance, is also an icy month, with temperature in the range of an average high of 38.5°F (3.6°C) and an average low of 27.3°F (-2.6°C). Defiance's progression into December involves a drop in the average high-temperature, receding from a frosty 48°F (8.9°C) in November to an icy 38.5°F (3.6°C). Weather in December »
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Defiance?

With average temperatures fluctuating between a high of 32.5°F (0.3°C) and a low of 20.1°F (-6.6°C), January stands out as the coldest month.

How much does it rain?

Throughout the year, there are 146.6 rainfall days, and 19.84" (504mm) of precipitation is accumulated.

When does it snow?

January through April, October through December are months with snowfall.

How many days does it snow?

In Defiance, during the entire year, snow falls for 37.4 days and aggregates up to 14.61" (371mm) of snow.

What is the month with the least sunshine in Defiance?

With an average of 4.2h of sunshine, January has the least sunshine of the year.

What are the months with the lowest UV index?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the most humid month?

With an average relative humidity of 82%, February is the most humid month in Defiance.

What is the snowiest month?

The month with the most snowfall in Defiance is February, when snow falls for 9.8 days and typically aggregates up to 3.74" (95mm) 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 EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What is the least humid month?

April and July, with an average relative humidity of 76%, are the least humid months.

What is the wettest month?

The month with the most rainfall is May, when the rain falls for 17.4 days and typically aggregates up to 2.36" (60mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

When are the longest days in Defiance?

With an average of 15h and 0min of daylight, June has the longest days of the year.

When is the highest UV index?

June is the month with the highest UV index, with an average maximum UV index of 6.

What is the warmest month?

July is the warmest month in Defiance, with an average high-temperature of 82.4°F (28°C) and an average low-temperature of 60.6°F (15.9°C).

What month has the most sunshine?

The month with the most sunshine is July, with an average of 10.3h of sunshine.

What is the driest month?

November is the month with the least rainfall. Rain falls for 8.6 days and accumulates 1.18" (30mm) of precipitation.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

Average temperature
Defiance, PA

Average temperature - Defiance, PA

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (32.5°F).

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure
Defiance, PA

Average pressure - Defiance, PA

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed
Defiance, PA

Average wind speed - Defiance, PA

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity
Defiance, PA

Average humidity - Defiance, PA

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April and July (76%).

Average rainfall
Defiance, PA

Average rainfall - Defiance, PA

The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is November (1.18").

Average rainfall days
Defiance, PA

Average rainfall days - Defiance, PA

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.5 days).

Average snowfall
Defiance, PA

Average snowfall - Defiance, PA

The month with the highest snowfall is February (3.74").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Defiance, PA

Average snowfall days - Defiance, PA

The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Defiance, PA

Average daylight / Average sunshine - Defiance, PA

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days
Defiance, PA

Average sunshine days - Defiance, PA

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11 days).

Average UV index
Defiance, PA

Average UV index - Defiance, PA

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

Average visibility
Defiance, PA

Average visibility - Defiance, PA

The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).

Defiance, Pennsylvania, USA

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