Climate and monthly weather forecast
McAlester, OK

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The climate of McAlester

Explicitly identified by the Köppen climate classification as a humid subtropical climate, McAlester, Oklahoma experiences no dry season throughout the year. Located in the heart of the United States, it's geographic position influences its weather significantly.

The year is marked by significant variations in temperature, humidity, and rainfall. Monthly temperatures range from a low of 33.3°F (0.7°C) in winter to a high of 92.7°F (33.7°C) in summer, indicating the depth of the climate's seasonal swings. Humidity levels stay relatively steady, hovering between 66% and 78% throughout the year. Along with humidity, the city experiences a substantial amount of rainfall with an average of 2.13" (54mm) in June to a high of 4.41" (112mm) in May.

The months of May and June are noteworthy for their rainfall levels. The regular downpours during this period contribute to the area's lush greenery, making it visually vibrant. The highest temperatures are to be expected in July and August, reaching up to 92.7°F (33.7°C) and 92.3°F (33.5°C), respectively.

The best time to visit McAlester

Significant consideration must be given to the weather when planning a visit. The ideal visiting period for McAlester falls between late spring and early summer when the temperature ranges from 70.5°F (21.4°C) to 88.3°F (31.3°C), and rainfall levels are moderate. The city presents an excellent outdoor environment during these months, without the sweltering heat of late summer.

The worst time to visit McAlester

While McAlester might be a visual feast throughout the year, the months from November to February could be challenging for visitors not accustomed to lower temperatures. During this timeframe, temperatures dip to an average low of 36°F (2.2°C) with minimal sunshine hours—just around 5.5 to 6.2 daily.

Spring weather in McAlester

Spring in McAlester, encompassing the months of March, April, and May, is a transition from mildly cold to progressively warm days. Temperature averages range from 51.6°F (10.9°C) to 77.7°F (25.4°C) offering a relatively comfortable climate with some rain. Rainfall averages from 2.64" (67mm) to 4.41" (112mm) keeping the humidity high and level, lying between 73% and 78%.

Summer weather in McAlester

McAlester's long hot summers run from June to August. Temperatures in these months peak from 88.3°F (31.3°C) to 92.7°F (33.7°C), while rainfall averages from 2.13" (54mm) to 2.95" (75mm). The humidity levels remain comparatively lower than other seasons, ranging from 66% to 74%.

Autumn weather in McAlester

Autumn, occurring from September to November, sees a gradual decrease in temperatures from 85.1°F (29.5°C) to 60.6°F (15.9°C). These months also register slightly higher rainfall ranging between 2.48" (63mm) and 3.19" (81mm). Humidity levels remain generally constant at around 69% to 71%.

Winter weather in McAlester

Winter descends on McAlester from December to February with temperatures falling to an average low of 36°F (2.2°C) to a high of 50.4°F (10.2°C). Winters are characterized by slight snowfall, ranging from 0.59" (15mm) to 0.2" (5mm). The city also sees lower daylight hours during this period, from 9.8 to 10.3 on average, leading to shorter and colder days.

Weather in January

Stepping into the year, January sees a blend of both wet and frosty conditions. McAlester witnesses a transition from the freezing period of the final quarter. Notably, it stands out with the lowest maximum daily temperatures, only reaching 48.9°F (9.4°C), coupled with frosty nights dropping to 33.3°F (0.7°C). Weather in January »

Weather in February

As the calendar flips to February, the temperatures see a subtle rise, hinting towards the closing chapter of the winter period. Even though February retains the frosty feel of January, there is a slight increase in warmth during both the day and night times in McAlester. Weather in February »

Weather in March

March heralds the arrival of spring with milder temperatures and an increase in rain. The city experiences a significant leap in warmth, leading to a goodbye to frosty nights and welcoming the warmer air. March is also known for its abundance in rain showers, acting as an end mark of the snow-laden winter. Weather in March »

Weather in April

Screens grow greener with the progress into April in McAlester. The month fosters the blossoming of the city, provoking an impression of new beginnings complemented by the warming temperatures and a steady increase in sunlight hours. Weather in April »

Weather in May

May brings about a warmer weather and the onset of summer in McAlester, Oklahoma. A definitive rise in both the temperatures and humidity levels makes it a distinct shift from the weather in April. This is accompanied by a palpable increase in the daylight hours, leading to sunnier days for the city. Weather in May »

Weather in June

June marks a significant change towards summer, with a notable rise in day temperatures. The city of McAlester begins to bask in the summer sun in June, with dry spells becoming more frequent. Interestingly, the rise in warmth and daylight hours coincides with a dip in rainfall, making the city less wet than in May. Weather in June »

Weather in July

Having reached the mid-year, July embodies the peak of summer in McAlester. An appreciable rise in temperatures, extended daylight hours and a decrease in rainfall culminate in making July the epitome of summer. July boasts the highest temperatures of the year in McAlester, with the mercury going up to 92.7°F (33.7°C) during the day and not dropping below 72.1°F (22.3°C) at night. Weather in July »

Weather in August

As the closing month of summer, August retains the warmth of July and the characteristic summer feel. It carries on the streak of high temperatures and prolonged sunlight from the preceding month. However, rainfall starts to pick up again after the summer dryness that reached its zenith in July. Weather in August »

Weather in September

Moving into autumn, September presents an easing from the sweltering summer months. The city witnesses a gradual drop in temperatures, making the weather cooler. September stands out with a slow transformation into autumn, marked by milder day and night times and a slight decrease in daylight hours. Weather in September »

Weather in October

October characterizes the heart of autumn in McAlester. A further dip in temperatures brings about pleasant weather. Clear yet cool days accompanied by crisp nights mark the weather in October, making it one of the most pleasant months of the year. Weather in October »

Weather in November

November signifies the end of autumn and the inception of the frosty period. With the evolving month, there is a distinct drop in temperatures, hinting at the approaching chill. November, though not as cold as the later months, still shows a clear shift from the weather in October. Weather in November »

Weather in December

December wraps up the calendar with the onset of cold winters in McAlester. A decline in temperatures and daylight hours captures the essence of winters. Encompassing the chill of January and February, December bears the trait of the frosty quarter. Weather in December »

Frequently asked questions

What is the coldest time of year?

The month of January, characterized by an average high of 48.9°F (9.4°C) and a low of 33.3°F (0.7°C), is recognized as the coldest.

How many days does it rain?

Throughout the year, in McAlester, there are 138.1 rainfall days, and 30.71" (780mm) of precipitation is accumulated.

When does it snow?

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

How much does it snow?

Throughout the year, there are 5.4 snowfall days, and 2.8" (71mm) of snow is accumulated.

What is the driest month?

February is the month with the least rainfall. Rain falls for 9.9 days and accumulates 1.73" (44mm) of precipitation.

When does it snow the most in McAlester?

February is the month with the most snowfall. Snow falls for 2.3 days and accumulates 1.14" (29mm) of snow.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in McAlester, 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?

May is the most humid month, with an average relative humidity of 78%.

What is the wettest month?

May is the month with the most rainfall. Rain falls for 14.4 days and accumulates 4.41" (112mm) of precipitation.

When it does not snow in McAlester?

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

When are the longest days?

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

When is the highest UV index?

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

What is the hottest time of year?

In McAlester, July is the month with the highest recorded average temperatures, measuring a high of 92.7°F (33.7°C) and a low of 72.1°F (22.3°C).

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?

The month with the most sunshine is August, with an average of 10.9h of sunshine.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 54min of daylight.

What is the month with the least sunshine?

The month with the least sunshine in McAlester is December, with an average of 5.5h of sunshine.

When is the lowest UV index?

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

Average temperature
McAlester, OK

Average temperature - McAlester, OK

The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (48.9°F).

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).

Average pressure
McAlester, OK

Average pressure - McAlester, OK

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed
McAlester, OK

Average wind speed - McAlester, OK

The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity
McAlester, OK

Average humidity - McAlester, OK

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (66%).

Average rainfall
McAlester, OK

Average rainfall - McAlester, OK

The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is February (1.73").

Average rainfall days
McAlester, OK

Average rainfall days - McAlester, OK

The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is January (7.7 days).

Average snowfall
McAlester, OK

Average snowfall - McAlester, 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
McAlester, OK

Average snowfall days - McAlester, 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
McAlester, OK

Average daylight / Average sunshine - McAlester, 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 54min).

The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days
McAlester, OK

Average sunshine days - McAlester, OK

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is April (14.5 days).

Average visibility
McAlester, OK

Average visibility - McAlester, 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).

McAlester, Oklahoma, USA

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