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Contents
- The climate of Plano
- The best time to visit Plano
- The worst time to visit Plano
- Spring weather in Plano
- Summer weather in Plano
- Autumn weather in Plano
- Winter weather in Plano
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Plano
In the classification system established by Wladimir Köppen, the climate of Plano, Texas, falls into the category of "Humid subtropical, no dry season" or "Cfa." Plano is positioned in the North Central Texas, which is within the Southern United States. The city's climate is characterized by an array of diverse weather patterns.
Throughout the year, temperatures in Plano range from the low 38.7°F (3.7°C) in winter to the high 95.5°F (35.3°C) in summer. Humidity generally stays within the 56% to 73% range, although it can rise to even higher levels during summer months. Adding to Plano's subtropical classification is its high rainfall, with precipitation levels wavering between 1.85" (47mm) to 4.21" (107mm) monthly. Interestingly, rainfall is fairly consistent throughout the year, with a subtle increase during May and October.
Snovfall is a rare phenomenon in Plano, with very small amounts observed only in January and December. The amount of daylight the city gets varies from 10 hours on shorter winter days to 14.3 hours on summer's longest days. Sunlight hours also differ greatly, with a lower limit of 5.5 hours during December going up to 11 hours during August.
One unique trait of Plano's weather is its consistently moderate wind speed, which oscillates from 6.8mph (10.9km/h) to 9.9mph (15.9km/h) throughout the year, with gusts going up to 15.6mph (25.1km/h).
Throughout the year, temperatures in Plano range from the low 38.7°F (3.7°C) in winter to the high 95.5°F (35.3°C) in summer. Humidity generally stays within the 56% to 73% range, although it can rise to even higher levels during summer months. Adding to Plano's subtropical classification is its high rainfall, with precipitation levels wavering between 1.85" (47mm) to 4.21" (107mm) monthly. Interestingly, rainfall is fairly consistent throughout the year, with a subtle increase during May and October.
Snovfall is a rare phenomenon in Plano, with very small amounts observed only in January and December. The amount of daylight the city gets varies from 10 hours on shorter winter days to 14.3 hours on summer's longest days. Sunlight hours also differ greatly, with a lower limit of 5.5 hours during December going up to 11 hours during August.
One unique trait of Plano's weather is its consistently moderate wind speed, which oscillates from 6.8mph (10.9km/h) to 9.9mph (15.9km/h) throughout the year, with gusts going up to 15.6mph (25.1km/h).
The best time to visit Plano
A great time to visit Plano would be from March to June, when temperatures hover around a comfortable 66.7°F (19.3°C) to 90.9°F (32.7°C). During this period, the city experiences more daylight hours, stretching from 12 hours to 14.3 hours per day, which provides ample time to explore Plano's attractions. Rainfall varies from 2.95" (75mm) to a slight increase at 4.02" (102mm) in May, but this doesn't majorly disrupt outdoor activities. During these months, sunshine also increases, providing an average of 6.8 hours to 10.2 hours of sun per day, which are ideal conditions for visitors looking to get the most out of their day.
The worst time to visit Plano
Despite its charm, Plano does experience some less than hospitable months. The period from July to August is particularly challenging due to high temperatures that peak at around 95.5°F (35.3°C). Also, humidity percentages during these months sit above the annual average, which can make it uncomfortable. Although there's ample daylight (from 13.3 hours to 14.1 hours), the increased heat may limit the enjoyment of outdoor activities.
Spring weather in Plano
Spring ushers fresh and mild weather into Plano. Temperatures during this season vary between a soft 57.4°F (14.1°C) in early Spring (March), rising gradually to 73.9°F (23.3°C) by the start of summer (May). Rainfall levels are somewhat high compared to other seasons, with monthly averages fluctuating between 2.95" (75mm) and 3.27" (83mm). Humidity levels hover around the 71% range, while the wind velocity gently sways from 9.8mph (15.8km/h) to 9.9mph (15.9km/h).
Summer weather in Plano
Summer in Plano records the highest temperatures of the year, starting from 81.5°F (27.5°C) in June and inching up to 95.5°F (35.3°C) in August. The subtropical climate is in full swing during these months, with humidity dropping to around 56% in August. Despite the heat, the rain does pour, providing some relief with an average of 2.28" (58mm) to 2.91" (74mm). Yet, with wind velocities decreasing to 7mph (11.3km/h) to 8mph (12.9km/h), the breeze might not provide much respite.
Autumn weather in Plano
Autumn sees a gradual fall in temperatures, from 87.6°F (30.9°C) in September to a mild 63.9°F (17.7°C) in November. This season records comparatively higher rainfall, peaking at 4.21" (107mm) in October and dropping back to 2.24" (57mm) by November. The longer hours of daylight from Summer start to shorten, reducing from 12.4 hours to 10.5 hours.
Winter weather in Plano
Winter in Plano is relatively mild compared to its more northern counterparts in the US. It experiences a low of 38.7°F (3.7°C) in January and slowly increases to 54.9°F (12.7°C) by February. The city sees a minor snowfall of 0.2" (5mm) to 0.12" (3mm) only in December and January. The overall winter daylight duration ranges between 10 hours to 10.5 hours, while the sun graces for about 5.5 hours to 5.8 hours during these colder months.
Weather in January
Suffused in the chilliness of winter, January in Plano, Texas delivers fluctuating temperatures which dance from 38.7°F (3.7°C) to 54°F (12.2°C). Constantly at the mercy of cold fronts sweeping in from the north, variations in temperatures are frequent. Weather in January »
Weather in February
As winter evolves into its final act, February in Plano presents an environment of gradually escalating temperatures and slightly increasing rainfall. The month is also marked by slightly stronger winds compared to January, rendering the overall atmosphere brisk. Weather in February »
Weather in March
March signifies the arrival of the spring season in Plano, with appreciable temperature change to 49.6°F (9.8°C) from 66.7°F (19.3°C). A notable increase in rainfall establishes the month as the commencement of the area's spring rain season. Weather in March »
Weather in April
April experiences a range of temperatures from 55.9°F (13.3°C) to 73.9°F (23.3°C), indicating the full bloom of spring in the Texan city. This is a time where weather variables showcase the essence of the season, with the landscape coming alive under increased sunlight hours. Weather in April »
Weather in May
As summer draws closer, May in Plano experiences a notable rise in temperatures, swinging between 64.2°F (17.9°C) to 81.5°F (27.5°C). This transition is marked by a gradual reduction in wind speed, making the airfeel warmer. Cloud cover reduces slightly, paving way for more sunlight and longer days. Weather in May »
Weather in June
June marks the start of the summer season in Plano, signifying a substantial leap in temperatures from 73.2°F (22.9°C) to 90.9°F (32.7°C). With the longest daylight hours of the year, the summer solstice appreciably contributes to the summery ambiance. Weather in June »
Weather in July
The peak of summer is witnessed in July, with an impressive temperature upgrade of 76.1°F (24.5°C) to a sweltering 94.5°F (34.7°C). This period denotes Plano's warmest month, faucet the populace with relentless, scorching afternoons. Weather in July »
Weather in August
August continues the summer narrative in Plano, witnessing maximum temperatures rocketing to a fiery 95.5°F (35.3°C) from 75.9°F (24.4°C). This month takes claim as the pinnacle of summer, enduring the highest temperatures of the year. Weather in August »
Weather in September
With September, Plano witnesses the gradual slowdown of summer heat, exhibiting temperatures from 70°F (21.1°C) to 87.6°F (30.9°C). The curtain call of the summer season presents an increased cloud cover and a resurgence in wind speeds. Weather in September »
Weather in October
October unveils the true beauty of the fall season in Plano, bringing moderate temperature fluctuations between 58.3°F (14.6°C) and 75.7°F (24.3°C). Embodying the transitional phase, this period reveals a marked decrease in humidity levels. Weather in October »
Weather in November
As winter looms on the horizon, November in Plano presents temperatures from 48.2°F (9°C) to 63.9°F (17.7°C). The swift change in weather cautions the residents that winter is just around the corner. Witnessing a relatively high cloud cover, the city makes the most of the remaining fall days. Weather in November »
Weather in December
Embracing the onset of winter, December in Plano, Texas showcases a noticeable dip in temperature, ranging from 41.2°F (5.1°C) to 54.9°F (12.7°C). The final show of the year stages the shortest days, culminating in the winter solstice. Weather in December »
Updated: Jul 10, 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
What part of the year is the coldest?
Plano notes the coldest temperatures in January, with a average high of 54°F (12.2°C) and a low of 38.7°F (3.7°C).
What is the driest month?
The month with the least rainfall is January, when the rain falls for 7.1 days and typically collects 1.85" (47mm) of precipitation.
How many days does it rain?
Throughout the year, there are 143 rainfall days, and 33.15" (842mm) of precipitation is accumulated.
When does it snow in Plano?
Months with snowfall are January, February, November and December.
How much does it snow?
In Plano, Texas, during the entire year, snow falls for 2.9 days and aggregates up to 1.14" (29mm) of snow.
What are the months with the lowest UV index?
The months with the lowest UV index are January and December, with an average maximum UV index of 3.
When does it snow the most?
February is the month with the most snowfall. Snow falls for 1.3 days and accumulates 0.71" (18mm) of snow.
When it does not snow?
In Plano, Texas, snow does not fall in March through October.
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?
May is the most humid month, with an average relative humidity of 73%.
When are the longest days?
June has the longest days of the year, with an average of 14h and 18min of daylight.
What is the month with the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 7.
What month is the hottest?
The highest temperatures are recorded in August, with averages reaching a high of 95.5°F (35.3°C) and a low of 75.9°F (24.4°C).
What is the least humid month?
With an average relative humidity of 56%, August is the least humid month.
What month has the most sunshine?
With an average of 11h of sunshine, August has the most sunshine of the year.
What is the rainiest month?
The month with the most rainfall is October, when the rain falls for 12.2 days and typically aggregates up to 4.21" (107mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days in Plano is December, with an average of 10h and 0min of daylight.
What is the month with the least sunshine?
December has the least sunshine of the year, with an average of 5.5h of sunshine.
Average temperature
Plano, TX
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (54°F).
The month with the highest average low temperature is July (76.1°F).
The coldest month (with the lowest average low temperature) is January (38.7°F).
Average pressure
Plano, TX
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.93"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.12"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
Plano, TX
- Average wind speed in January:
9.1mph - Average wind speed in February:
9.8mph - Average wind speed in March:
9.9mph - Average wind speed in April:
9.9mph - Average wind speed in May:
9.1mph - Average wind speed in June:
8mph
- Average wind speed in July:
7.2mph - Average wind speed in August:
7mph - Average wind speed in September:
6.8mph - Average wind speed in October:
8.1mph - Average wind speed in November:
8.7mph - Average wind speed in December:
8.6mph
The windiest months (with the highest average wind speed) are March and April (9.9mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).
Average humidity
Plano, TX
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (56%).
Average rainfall
Plano, TX
- Average rainfall in January:
1.85" - Average rainfall in February:
1.89" - Average rainfall in March:
3.27" - Average rainfall in April:
2.95" - Average rainfall in May:
4.02" - Average rainfall in June:
2.91"
- Average rainfall in July:
2.28" - Average rainfall in August:
2.56" - Average rainfall in September:
2.76" - Average rainfall in October:
4.21" - Average rainfall in November:
2.24" - Average rainfall in December:
2.2"
The wettest month (with the highest rainfall) is October (4.21").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days
Plano, TX
- Average rainfall days in January:
7.1 days - Average rainfall days in February:
10.5 days - Average rainfall days in March:
13.8 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
14.6 days - Average rainfall days in June:
13.1 days
- Average rainfall days in July:
12.8 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
14.5 days - Average rainfall days in October:
12.2 days - Average rainfall days in November:
8.7 days - Average rainfall days in December:
9.6 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (7.1 days).
Average snowfall
Plano, TX
The month with the highest snowfall is February (0.71").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days
Plano, TX
- Average snowfall days in January:
0.6 days - Average snowfall days in February:
1.3 days - Average snowfall days in March:
0.2 days - Average snowfall days in April:
0 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:
0.4 days - Average snowfall days in December:
0.4 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Plano, TX
- Average daylight in January:
10h and 2min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 5min - Average daylight in June:
14h and 2min
- Average daylight in July:
14h and 1min - Average daylight in August:
13h and 2min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 3min - Average daylight in December:
10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January:
5h and 5min - Average sunshine in February:
6h and 4min - Average sunshine in March:
6h and 5min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
11h and 0min - Average sunshine in September:
8h and 3min - Average sunshine in October:
6h and 3min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 3min
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 30min).
Average sunshine days
Plano, TX
- Average sunshine days in January:
22.5 days - Average sunshine days in February:
15.6 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
13.9 days - Average sunshine days in May:
14.4 days - Average sunshine days in June:
14.6 days
- Average sunshine days in July:
16.3 days - Average sunshine days in August:
16.7 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
17.2 days - Average sunshine days in November:
19.1 days - Average sunshine days in December:
19.4 days
The month with the most sunshine days is January (22.5 days).
The month with the least sunshine days is April (13.9 days).
Average UV index
Plano, TX
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover
Plano, TX
The months with the most cloud cover are February and March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility
Plano, TX
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).
Plano, Texas, USA
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