McKinney, Texas, enjoys a humid subtropical climate, typical of many parts of the southern United States.
The hottest month in McKinney is July, with average highs reaching 94°F and lows around 73°F.
During the cold season, which lasts from late November to late February, temperatures can drop significantly. January is the coldest month, averaging lows of 35°F and highs of 56°F.
Rainfall in McKinney peaks in October, making it the wettest month with an average of 4.17 inches of precipitation. Throughout the year, the city experiences about 138 rainy days annually.
For those planning a visit, the months of April and October are often praised for their pleasant weather and mild temperatures.
For a visual representation, the climate graphs for McKinney provide a clear overview of long-term weather patterns over a 30-year period.
These graphs can help residents and visitors alike prepare for various weather conditions, making it easier to plan activities throughout the year.
Average Temperature in McKinney, Texas
The average temperature in McKinney, Texas, varies significantly throughout the year.
The hottest month is July, with an average high temperature of 94°F and a low of 73°F.
By contrast, August averages around 85.5°F, making it a warm month as well.
The coolest month is January, with an average low temperature of 45.4°F. During the cool season, which lasts from November 24 to February 24, the mean temperature remains below 60°F.
| Month | Avg. High Temp (°F) | Avg. Low Temp (°F) |
|---|---|---|
| January | 53 | 45.4 |
| July | 94 | 73 |
| August | 85.5 |
In all seasons, the temperature can fluctuate, so it’s important to be prepared for both warm and cool days.
The average daily high temperature during the three hottest months (June, July, and August) exceeds 87°F. This makes these months the warmest period of the year. Residents and visitors alike should expect hot, humid conditions.
The cold season sees average temperatures drop significantly. It’s important to note how much colder it gets during this period, as February and December tend to be particularly chilly. These months mark a sharp contrast from the summer heat.
This temperature variance ensures a range of climatic experiences throughout the year.
Average Precipitation in McKinney, Texas
McKinney, Texas experiences varied precipitation throughout the year. The region receives most of its rainfall during spring and fall, with minimal snowfall during winter.
Average Rainfall in McKinney, Texas
McKinney sees a considerable amount of rain each year. The annual precipitation averages around 41 inches. March, April, May, and October are particularly rainy months, contributing significantly to this total. May stands out as the wettest month, with an average rainfall of 5.9 inches.
In contrast, February is the driest month, seeing only around 2.1 inches of rain.
Rainy days are frequent, especially in the spring, so residents should be prepared for sudden showers. This pattern supports the lush greenery seen in McKinney during these seasons.
Average Snow in McKinney, Texas
Snowfall in McKinney is infrequent and typically light. The city receives an average of 2 inches of snow annually.
Snow is most likely to occur in January and February, the coldest months. The coldest month in McKinney, January, has an average low of 35°F, creating conditions suitable for occasional snow.
Residents rarely see significant snow accumulation, so disruptions from snow are uncommon. Winter weather, including snow and ice, might interest those tracking weather patterns, as discussed in this article.
Frequent mild winters mean that even on snowy days, the accumulation quickly melts, maintaining McKinney’s generally mild climate throughout the year.
Average Sun in McKinney, Texas
McKinney, Texas, enjoys a considerable amount of sunshine throughout the year. The area experiences relatively clear skies with moderate cloud cover and high UV index during the summer months.
Average Daily Shortwave Solar Energy in McKinney, Texas
McKinney receives an average of 229 sunny days per year, significantly higher than the national average of 205 sunny days. During the summer, daylight hours are longer, contributing to more sunlight exposure.
In terms of solar energy, McKinney averages around 5.5 kWh per square meter daily. This high level of solar energy makes it a favorable location for solar panel installations.
The UV index in McKinney is often high during peak summer months, indicating the strength of the sun’s ultraviolet radiation. It’s important for residents and visitors to take protective measures like wearing sunscreen and hats.
Cloud cover varies by season, with fewer clouds in the summer which leads to longer periods of uninterrupted sunshine. During winter, cloud cover increases slightly, but it still allows for plenty of sunlight to reach the ground.
Overall, the total hours of sun are ample, contributing to the city’s warm, sunny climate that many find appealing year-round.
Average Humidity in McKinney, Texas
McKinney, Texas experiences varying levels of humidity throughout the year. May is the most humid month, with an average relative humidity of 70%. This can make the weather feel quite muggy and sticky.
In contrast, August is the least humid month with an average relative humidity of 60%. This lower humidity makes the summer heat feel slightly less oppressive despite high temperatures.
| Month | Average Relative Humidity |
|---|---|
| May | 70% |
| August | 60% |
Typically, the dew point in McKinney ranges in line with its humidity levels. Higher dew points in months like May contribute to a muggy atmosphere.
Throughout the year, residents can expect some variation in humidity, impacting comfort levels and the overall feel of the weather. Even in the least humid months, the combination of heat and some degree of humidity can still make it feel quite warm.
For more detailed monthly humidity stats, you can check out this information on average humidity in McKinney.
Average Wind in McKinney, Texas
Wind in McKinney varies throughout the year. Wind speeds typically range from light breezes to moderate gusts.
In McKinney, average wind speeds range from 4 to 10 mph. During the summer months, the wind tends to be calmer. During winter, it can be gustier.
March is often the windiest month. Average wind speeds in March can reach up to 10 mph. This is due to seasonal changes, with shifting weather patterns contributing to higher wind speeds.
Using tables can summarize average wind speeds:
| Month | Average Wind Speed (mph) |
|---|---|
| January | 8 |
| February | 8.5 |
| March | 10 |
| April | 9 |
| May | 7 |
| June | 6 |
| July | 5 |
| August | 5 |
| September | 6 |
| October | 7 |
| November | 8 |
| December | 8 |
McKinney’s wind speeds do not typically exceed 15 mph, making it a relatively calm area. Factors such as weather fronts and local geography affect the wind. Roads or open fields may experience different speeds due to these conditions.
Average Air Quality in McKinney, Texas
The average air quality in McKinney, Texas is generally considered to be moderate.
Air Quality Index (AQI) Levels:
- Good: 0-50
- Moderate: 51-100
- Unhealthy for Sensitive Groups: 101-150
- Unhealthy: 151-200
- Very Unhealthy: 201-300
- Hazardous: 301-500
Most days in McKinney fall in the “Moderate” range.
In McKinney, the primary pollutant is usually PM2.5 (fine particulate matter).
PM2.5 can come from many sources like vehicle emissions, industrial processes, and wildfires.
To check the current air quality levels, websites like IQAir provide real-time data on PM2.5 and other pollutants.
For those with respiratory conditions, it is advisable to stay indoors during days with higher pollution levels.
Higher pollution levels are often in the summer due to high temperatures and increased ozone levels.
Weather Factors Influencing Air Quality:
- Temperature: Summer temperatures in McKinney can reach up to 96.8°F.
- Wind: Moderate winds (around 11 mph) help disperse pollutants.
- Precipitation: Rainfall can help clear pollutants from the air.
For daily updates, the AccuWeather website is another good resource.
Tips for Residents:
- Check Real-Time Data: Use online platforms to monitor daily air quality.
- Stay Indoors: Avoid outdoor activities on days with high AQI.
- Use Air Purifiers: Improve indoor air quality with air purifiers.
Understanding these patterns can help residents plan their activities and protect their health.
Topography of McKinney, Texas
McKinney, located in Collin County, Texas, sits at an average elevation of 673 feet above sea level. This high point gives McKinney its distinct landscape, making it one of the noteworthy areas in the state with varied terrain.
The Dr. Charles B. McKissick Park, a popular spot in McKinney, shares this average elevation.
In contrast, other nearby areas like Murphy in Collin County are situated at similar elevations providing a sense of geographical consistency across the region.
Elevation Varieties:
- Average Elevation: 673 feet (205 meters)
- Minimum Elevation: 482 feet (147 meters)
- Maximum Elevation: 634 feet (193 meters)
The terrain varies greatly, creating rolling hills and flat plains.
These variations can be observed in places around McKinney such as the Lavon Beach Estates and Farmersville, both part of Collin County, which have elevations around 154 meters.
McKinney’s topography affects its climate, contributing to notable temperature ranges throughout the year.
For instance, the hot summers reach highs of about 94°F in July, while winters have an average low of 35°F in January.
This varied landscape also influences rainfall patterns, affecting agricultural and recreational activities in the area.
The mix of elevation and terrain creates a variety of landscapes from urban parks to natural reserves, making McKinney a place of interest for residents and visitors alike.
The changes in elevation and terrain also add to the character of McKinney, showcasing the natural beauty of Texas.
Extreme Weather Events that Occur in McKinney, Texas
McKinney, Texas, experiences various extreme weather events throughout the year.
Tornadoes are a notable threat in the region.
These violent storms can occur with little warning and cause significant damage. Residents must take tornado warnings seriously and seek shelter immediately.
Hot temperatures and high humidity are common in the summer months.
These conditions can lead to heat-related illnesses and pose a risk to outdoor workers and the elderly.
Staying hydrated and avoiding strenuous activities during peak heat hours is crucial.
Winter weather, though rare, can bring freezing rain, ice, and snow to McKinney.
Extreme cold events are possible, with temperatures dropping below freezing. More information about winter weather can be found on the local government website.
Hail is another severe weather event that occurs in McKinney.
Hailstorms can damage properties and vehicles, and large hailstones can cause injuries. It is advisable to seek shelter indoors during a hailstorm.
Electrical storms are frequent in McKinney.
These storms bring lightning which can start fires and pose risks to people and animals. For more on electrical storms, detailed articles are available here.
Droughts also affect the region, impacting local agriculture and water supply. Conservation efforts and water restrictions are sometimes necessary during prolonged dry periods.
Best Time of the Year to Visit McKinney, Texas
Spring and fall offer the most pleasant weather in McKinney, Texas. Summer can get very hot, while winters are mild but cooler.
What is McKinney, Texas Like in Spring
Spring in McKinney spans from March to May. During these months, temperatures rise gradually.
March sees an average high of 65°F and a low of 45°F. By May, temperatures climb to an average high of 82°F and a low of 61°F.
Rainfall is moderate, making the landscape lush and green.
April is often a favorite due to the blooming flowers and comfortable temperatures.
Rainy days are common, but they make the parks and trails vibrant. Events and festivals are also frequent during this time, taking advantage of the good weather.
What is McKinney, Texas Like in Summer
Summer in McKinney is hot and humid, running from June to August.
July is the hottest month, with an average high of 94°F and a low of 73°F.
Temperatures in August can reach around 99°F.
Days are long and sunny, perfect for indoor activities like visiting the city’s museums or enjoying local cuisine.
Outdoor activities are best done in the early morning or late evening to avoid the heat.
July and August can also see occasional thunderstorms, offering brief relief from the heat.
What is McKinney, Texas Like in Fall
Fall, from September to November, is a favorite season for many in McKinney.
During September, temperatures drop to an average high of 87°F and a low of 66°F.
By November, they further cool to an average high of 63°F and a low of 44°F.
The weather is mild and dry, perfect for outdoor activities.
October stands out with less rainfall, averaging about 4.17 inches, making it the best month for touring the city’s parks and trails. The vibrant foliage adds to the charm.
What is McKinney, Texas Like in Winter
Winter in McKinney spans from December to February. This season is mild as compared to northern states.
January is the coldest month, with an average high of 56°F and a low of 35°F.
Snow is rare, but occasional cold snaps can bring frosty mornings.
December and January see temperatures suitable for cozy indoor activities.
Clear skies are common, making it an ideal time for those who prefer cooler weather without the harsh cold.
Aventuring outdoors and exploring local attractions and eateries is also pleasant during this time.