Climate and monthly weather forecast
Dewar, OK

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Weather in January

January, the same as December, in Dewar, Oklahoma, is a frosty winter month, with an average temperature fluctuating between 32.2°F (0.1°C) and 48°F (8.9°C). Dewar's coldest month, January, generally records average temperatures ranging from a high of 48°F (8.9°C) to a low of 32.2°F (0.1°C). Weather in January »

Weather in February

February, the last month of the winter in Dewar, is a cool month, with an average temperature varying between 35.6°F (2°C) and 51.4°F (10.8°C). The onset of February marks an average high-temperature of a fresh 51.4°F (10.8°C), hardly differing from January's 48°F (8.9°C). Weather in February »

Weather in March

March, the first month of the spring in Dewar, is an enjoyable month, with an average temperature fluctuating between 62.2°F (16.8°C) and 45.1°F (7.3°C). As March arrives, a rise in the average high-temperature is observed, moving from a cool 51.4°F (10.8°C) in February to a refreshing 62.2°F (16.8°C). Weather in March »

Weather in April

April is an agreeable spring month in Dewar, Oklahoma, with an average temperature ranging between max 69.8°F (21°C) and min 51.4°F (10.8°C). April showcases a minor temperature ascent, adjusting from March's enjoyable 62.2°F (16.8°C) to a pleasant 69.8°F (21°C). Weather in April »

Weather in May

The last month of the spring, May, is a warm month in Dewar, Oklahoma, with temperature in the range of an average high of 76.6°F (24.8°C) and an average low of 59.9°F (15.5°C). With the onset of May, Dewar's average high-temperature sees a modest rise, moving from April's pleasant 69.8°F (21°C) to a moderately hot 76.6°F (24.8°C). Weather in May »

Weather in June

June, the first month of the summer in Dewar, is a hot month, with temperature in the range of an average low of 69.4°F (20.8°C) and an average high of 86.9°F (30.5°C). Dewar's transition into June is marked by a rise in the average high-temperature, advancing from a moderately hot 76.6°F (24.8°C) in May to a hot 86.9°F (30.5°C). Weather in June »

Weather in July

July, the same as June, in Dewar, Oklahoma, is another tropical summer month, with temperature in the range of an average low of 72.3°F (22.4°C) and an average high of 91.8°F (33.2°C). The arrival of July denotes a barely perceptible change in the average high-temperatures to a still tropical 91.8°F (33.2°C) from June's 86.9°F (30.5°C). Weather in July »

Weather in August

The last month of the summer, August, is another hot month in Dewar, Oklahoma, with an average temperature varying between 71.1°F (21.7°C) and 91.9°F (33.3°C). Dewar experiences its highest temperatures in August, with an average peak of 91.9°F (33.3°C) and a low of 71.1°F (21.7°C). For most parts of August, the heat index is calculated to be a blistering 109.4°F (43°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Dewar, Oklahoma, with an average temperature varying between 64.6°F (18.1°C) and 84.6°F (29.2°C). The arrival of September is marked by a minor reduction in average high-temperature, sliding from a hot 91.9°F (33.3°C) in August to a warm 84.6°F (29.2°C). Weather in September »

Weather in October

October, like September, is another pleasant autumn month in Dewar, Oklahoma, with an average temperature varying between 71.4°F (21.9°C) and 53.2°F (11.8°C). In the transition to October, Dewar observes a drop in the average high-temperature, moving from a warm 84.6°F (29.2°C) in September to an agreeable 71.4°F (21.9°C). Weather in October »

Weather in November

The last month of the autumn, November, is another mild month in Dewar, Oklahoma, with an average temperature fluctuating between 59.9°F (15.5°C) and 43.2°F (6.2°C). Onset of November witnesses a reduction in the average high-temperature, falling from an agreeable 71.4°F (21.9°C) in October to a mild 59.9°F (15.5°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in Dewar, Oklahoma, with an average temperature varying between 49.5°F (9.7°C) and 35.2°F (1.8°C). As December arrives, Dewar's weather displays a decrease in high-temperatures, transitioning from November's moderate 59.9°F (15.5°C) to a frosty 49.5°F (9.7°C). Weather in December »
Updated: Jun 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

In Dewar, January registers the lowest temperatures, averaging 48°F (8.9°C) at the peak and 32.2°F (0.1°C) at the lowest.

How many days does it rain?

In Dewar, during the entire year, the rain falls for 132.2 days and collects up to 29.49" (749mm) of precipitation.

When does it snow?

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

How many days does it snow?

Throughout the year, there are 5.8 snowfall days, and 2.91" (74mm) of snow is accumulated.

What is the driest month?

February is the month with the least rainfall. Rain falls for 8.8 days and accumulates 1.42" (36mm) of precipitation.

When does it snow the most?

The month with the most snowfall is February, when snow falls for 2 days and typically aggregates up to 1.14" (29mm) 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?

With an average relative humidity of 80%, May is the most humid month in Dewar.

What is the wettest month in Dewar?

The month with the most rainfall is May, when the rain falls for 14.7 days and typically aggregates up to 4.84" (123mm) of precipitation.

When it does not snow?

In Dewar, snow does not fall in May through October.

When are the longest days?

The month with the longest days is June, with an average of 14h and 30min of daylight.

What is the month with the highest UV index?

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

What is the warmest month?

Dewar's temperatures peak on average in August, reaching 91.9°F (33.3°C) at their highest and 71.1°F (21.7°C) at their lowest.

What is the least humid month?

The least humid month is August, with an average relative humidity of 66%.

What month has the most sunshine?

August has the most sunshine of the year, with an average of 11h of sunshine.

What is the month with the shortest days?

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

What is the month with the least sunshine in Dewar?

With an average of 5.6h of sunshine, December has the least sunshine of the year.

When is the lowest UV index?

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

Average temperature
Dewar, OK

Average temperature - Dewar, OK

The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is January (48°F).

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).

Average pressure
Dewar, OK

Average pressure - Dewar, OK

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed
Dewar, OK

Average wind speed - Dewar, OK

The windiest month (with the highest average wind speed) is March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

Average rainfall
Dewar, OK

Average rainfall - Dewar, OK

The wettest month (with the highest rainfall) is May (4.84").
The driest month (with the least rainfall) is February (1.42").

Average rainfall days
Dewar, OK

Average rainfall days - Dewar, OK

The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is January (6.9 days).

Average snowfall
Dewar, OK

Average snowfall - Dewar, OK

The month with the highest snowfall is February (1.14").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Dewar, OK

Average snowfall days - Dewar, OK

The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Dewar, OK

Average daylight / Average sunshine - Dewar, 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 August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

Average sunshine days
Dewar, OK

Average sunshine days - Dewar, OK

The month with the most sunshine days is January (21.8 days).
The months with the least sunshine days are April and May (14.4 days).

Average visibility
Dewar, OK

Average visibility - Dewar, 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).

Dewar, Oklahoma, USA

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