Climate and monthly weather forecastMcAlester, OK
Climate and monthly weather forecast
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 »Updated: Jun 4, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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.
Throughout the year, in McAlester, there are 138.1 rainfall days, and 30.71" (780mm) of precipitation is accumulated.
Months with snowfall are January through April, November and December.
Throughout the year, there are 5.4 snowfall days, and 2.8" (71mm) of snow is accumulated.
February is the month with the least rainfall. Rain falls for 9.9 days and accumulates 1.73" (44mm) of precipitation.
February is the month with the most snowfall. Snow falls for 2.3 days and accumulates 1.14" (29mm) of snow.
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.
May is the most humid month, with an average relative humidity of 78%.
May is the month with the most rainfall. Rain falls for 14.4 days and accumulates 4.41" (112mm) of precipitation.
In McAlester, snow does not fall in May through October.
With an average of 14h and 30min of daylight, June has the longest days of the year.
The months with the highest UV index are June through August, with an average maximum UV index of 7.
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).
The least humid month is August, with an average relative humidity of 66%.
The month with the most sunshine is August, with an average of 10.9h of sunshine.
The month with the shortest days is December, with an average of 9h and 54min of daylight.
The month with the least sunshine in McAlester is December, with an average of 5.5h of sunshine.
With an average maximum UV index of 2, December is the month with the lowest UV index.
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 in January:
30.16"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.13"Hg
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 in January:
8.6mph - Average wind speed in February:
9.1mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.5mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.2mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.2mph - Average wind speed in September:
6.5mph - Average wind speed in October:
7.9mph - Average wind speed in November:
8.8mph - Average wind speed in December:
8.2mph
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
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 in January:
1.85" - Average rainfall in February:
1.73" - Average rainfall in March:
2.64" - Average rainfall in April:
2.99" - Average rainfall in May:
4.41" - Average rainfall in June:
2.13"
- Average rainfall in July:
2.52" - Average rainfall in August:
2.95" - Average rainfall in September:
2.48" - Average rainfall in October:
3.19" - Average rainfall in November:
1.89" - Average rainfall in December:
1.93"
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 in January:
7.7 days - Average rainfall days in February:
9.9 days - Average rainfall days in March:
13.7 days - Average rainfall days in April:
13.7 days - Average rainfall days in May:
14.4 days - Average rainfall days in June:
10.9 days
- Average rainfall days in July:
14.2 days - Average rainfall days in August:
12.7 days - Average rainfall days in September:
12.3 days - Average rainfall days in October:
11.1 days - Average rainfall days in November:
8.3 days - Average rainfall days in December:
9.2 days
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
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 in January:
1.3 days - Average snowfall days in February:
2.3 days - Average snowfall days in March:
0.6 days - Average snowfall days in April:
0.1 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
0.6 days
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 in January:
10h and 6min - Average daylight in February:
10h and 54min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 30min
- Average daylight in July:
14h and 12min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 18min - Average daylight in December:
9h and 54min
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).
- Average sunshine in January:
5h and 36min - Average sunshine in February:
6h and 12min - Average sunshine in March:
6h and 54min - Average sunshine in April:
8h and 12min - Average sunshine in May:
8h and 48min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
10h and 48min - Average sunshine in August:
10h and 54min - Average sunshine in September:
8h and 54min - Average sunshine in October:
6h and 24min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 30min
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 in January:
20.8 days - Average sunshine days in February:
15.2 days - Average sunshine days in March:
15.1 days - Average sunshine days in April:
14.5 days - Average sunshine days in May:
14.8 days - Average sunshine days in June:
16.3 days
- Average sunshine days in July:
14.6 days - Average sunshine days in August:
15.5 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
18.2 days - Average sunshine days in November:
19.7 days - Average sunshine days in December:
19.5 days
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 UV index
McAlester, OK
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover
McAlester, OK
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 22).
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).
