Thornton, Colorado boasts a moderate climate with distinct seasons, making it an appealing destination for those who enjoy varied weather.
July is typically the warmest month, with daytime highs averaging around 88°F. Meanwhile, evenings are relatively cool with lows of about 61°F.
In contrast, the coldest period spans from November to February, where daily high temperatures often stay below 52°F.
Precipitation in Thornton is modest, averaging about 16 inches annually. The city receives the most rainfall in July, accumulating roughly 0.59 inches over about 8 days.
These weather patterns make Thornton a great place to enjoy outdoor activities year-round, complemented by its proximity to Denver.
The overall climate in Thornton is characterized by significant seasonal variations in temperature and moderate humidity levels.
With its year-round appeal and comfort, Thornton stands out as an ideal location for both residents and visitors seeking a balance between warm, sunny summers and cold, crisp winters.
Average Temperature in Thornton, Colorado
Thornton, Colorado experiences a variety of temperatures throughout the year.
During the hot season, which spans from June to September, the average high temperature is above 79°F.
In July, the hottest month, temperatures typically reach a high of 88°F and a low of 61°F. This time of year is characterized by warm and sunny days.
The cold season lasts from November to February. During this period, the daily high temperature averages below 52°F.
The coldest month is usually December, with temperatures dropping to about 20°F at night.
| Month | Average High (°F) | Average Low (°F) |
|---|---|---|
| January | 45 | 20 |
| February | 49 | 23 |
| March | 56 | 29 |
| April | 63 | 36 |
| May | 72 | 45 |
| June | 82 | 54 |
| July | 88 | 61 |
| August | 86 | 59 |
| September | 77 | 50 |
| October | 66 | 38 |
| November | 54 | 28 |
| December | 45 | 20 |
In Thornton, the mean temperature across the year is around 52°F.
This average provides a snapshot of the climate and helps residents and visitors understand what to expect.
For those interested in detailed articles on temperature, some resources can be found here.
Knowing the average temperatures can assist in planning activities and preparing for the varying weather conditions.
Average Precipitation in Thornton, Colorado
Thornton, Colorado experiences varied precipitation patterns throughout the year, including notable distinctions between rainfall and snowfall.
Average Rainfall in Thornton, Colorado
Thornton receives relatively moderate rainfall annually.
The wettest month is July, with an average of 0.59 inches of rain over approximately 8.2 rainy days.
Rain is generally less frequent in other months.
Thornton’s precipitation patterns showcase how the rainfall tends to peak during the summer.
The rest of the year sees lesser rainfall, contributing to an annual total of about 15 inches.
The driest months typically are November and December. Rain showers are common but usually brief.
These statistics help highlight the seasonal distribution of rainfall in the region.
Average Snow in Thornton, Colorado
Snowfall in Thornton is a key feature of its winter climate.
The snow season spans from late November to late March.
Significant snowfall occurs, with the city’s snowiest months being December, January, and February. During these months, snow accumulates to an average of around 7 inches each month.
Thornton’s winter also sees occasional heavy snowstorms, contributing to the snow totals.
The annual snowfall averages around 46 inches.
Frequent snow and icy conditions are crucial winter characteristics of the area.
For additional information on snow patterns, resources like articles on snow and ice provide further insights.
Average Sun in Thornton, Colorado
Thornton, Colorado experiences varied sunlight throughout the year, affecting daylight hours, UV index, and sunrise/sunset times. Below are important details on these aspects.
Average Daily Shortwave Solar Energy in Thornton, Colorado
The average daily shortwave solar energy in Thornton varies considerably.
During the summer months, solar energy levels are higher due to longer daylight hours. In June, individuals can expect around 8.5 kWh per square meter.
Winter months, like December, see lower levels of approximately 2.5 kWh per square meter due to shorter daylight.
Sunlight intensity also changes, with UV index being higher in summer and lower in winter. This influences how much direct sunlight reaches the ground, impacting outdoor activities.
Sunrise and sunset times shift across the year.
In July, sunrise typically occurs around 5:45 AM, while sunset happens near 8:30 PM.
In December, sunrise delays to about 7:15 AM, and sunset arrives earlier, around 4:35 PM.
This fluctuation impacts daily activities and planning.
Daylight hours in Thornton stretch up to 14-15 hours in summer and shrink to roughly 9-10 hours during winter.
These variations play a significant role in both weather patterns and lifestyle in the region.
Average Humidity in Thornton, Colorado
Thornton, Colorado experiences moderate humidity levels throughout the year. The average annual relative humidity is 52%.
December is the most humid month with an average relative humidity of 56%.
Conversely, July is the least humid month, averaging around 46% relative humidity.
Here’s a brief breakdown of the average humidity:
- January: 55%
- February: 53%
- March: 52%
- April: 51%
- May: 48%
- June: 46%
- July: 46%
- August: 47%
- September: 50%
- October: 52%
- November: 53%
- December: 56%
In terms of dew point, Thornton maintains a comfortable range throughout the year.
The dew point generally aligns with the relative humidity levels, ensuring that the air doesn’t feel too sticky or dry.
Average Wind in Thornton, Colorado
The wind in Thornton, Colorado, is relatively calm year-round. Thornton experiences light to moderate winds with an average speed varying between 5-15 mph.
Windiest Month:
The windiest month is typically April, with average wind speeds reaching around 15 mph.
This makes outdoor activities that rely on wind, like kitesurfing, particularly enjoyable during this month.
Monthly Averages:
- January: 7 mph
- April: 15 mph
- July: 10 mph
- October: 8 mph
Seasonal Variations:
Spring and fall often bring slightly higher wind speeds compared to summer and winter.
Spring winds are especially notable for their strength, as mentioned in resources about wind patterns like ChaseDay.com.
Wind Directions:
Thornton’s winds predominantly come from the west and southwest. This is ideal for those engaging in wind-related sports.
Comparatively, during the summer months, wind speeds calm down a bit, averaging around 10 mph, making it a pleasant time for hiking and other outdoor activities without too much gustiness.
Average Air Quality in Thornton, Colorado
Thornton, Colorado, generally enjoys good air quality year-round. The Air Quality Index (AQI) frequently measures in the “Good” range, indicating minimal pollution levels.
For example, locations like Signal Creek Place often report AQI values around 22, while Williams Street and Clayton Court measure approximately 25 and 35, respectively.
This suggests clean air that’s suitable for outdoor activities.
Measurements from IQAir and AccuWeather confirm the trend, showing that air quality in Thornton is often rated as “Good” or “Moderate.”
Historical data also supports this, with AQI values rarely spiking to unhealthy levels.
Typically, cloud cover and visibility in Thornton are favorable, contributing to the area’s good air quality.
Cloud cover is common but not dense, allowing for clear views and contributing positively to the atmosphere.
The region’s atmospheric conditions, including pressure and cloud types, usually remain stable, which further supports low pollution levels.
Although occasional spikes due to weather patterns are seen, they are typically short-lived.
Topography of Thornton, Colorado
Thornton is located in Adams County, Colorado. The city’s topography is largely flat, with gentle slopes and minimal variation in elevation.
Elevation:
- Average elevation: 5,253 feet above sea level
- Elevation range: Thornton lies between approximately 5,253 feet and 5,280 feet
Thornton’s landscape is typical of the Colorado Front Range, with vast plains that gradually rise into the Rocky Mountains to the west.
Terrain:
- Predominantly plain with gentle slopes
- Urban development has influenced terrain features
Coordinates:
- Latitude: approximately 39.83101 to 40.00093 degrees North
- Longitude: approximately -105.01553 to -104.87789 degrees West
For more detailed visualization, visitors can explore Thornton’s topographic maps.
Thornton enjoys a mild climate with over 300 days of sunshine each year, influenced by its elevation and position on the plains. This contributes to its appeal for both residents and tourists.
Extreme Weather Events that Occur in Thornton, Colorado
Thornton, Colorado experiences a variety of extreme weather events throughout the year. These events can range from intense cold snaps to severe hailstorms, and each season brings its own set of challenges.
In winter, Thornton can get extremely cold, with temperatures dropping well below freezing. January is typically the coldest month, with low temperatures often reaching below 20°F. Wind chills can make it feel even colder.
Spring and summer are known for their severe weather, including thunderstorms and hail. Hailstorms are quite common in this area, and can cause significant damage. The hail can vary in size but can sometimes be as large as golf balls.
The hottest month in Thornton is usually July. During this time, temperatures can soar, often reaching the upper 90s°F. Heatwaves can occur, making it important for residents to stay hydrated and take precautions against the heat.
Rainfall can also be intense during certain months. For instance, Denver has experienced record rainfall, and Thornton often experiences similar weather patterns.
Severe weather events such as these require residents to be prepared for sudden changes. Keeping track of weather forecasts and understanding the potential risks can help in staying safe during these extreme conditions.
Best Time of the Year to Visit Thornton, Colorado
Thornton, Colorado boasts varied weather throughout the year. The different seasons offer unique experiences, making it an intriguing destination no matter when you visit.
What is Thornton, Colorado Like in Spring
Spring in Thornton sees mild temperatures. Daily highs typically range from the mid-50s in March to around 70°F in May. The city receives moderate precipitation during these months, making it a great time for outdoor activities as flowers bloom and parks come alive.
Rainfall is not excessive, usually around 1 to 2 inches per month. Locals enjoy hiking and exploring natural areas like the Thornton Parkway, as the weather is comfortable and the landscapes are lush.
What is Thornton, Colorado Like in Summer
Summers in Thornton are warm and dry. The average daily high in July peaks at about 88°F, while nighttime lows stay around 61°F. This season is perfect for enjoying the numerous parks and recreational areas in the city.
Thunderstorms can occur, but rainfall is generally low, around 0.59 inches in July. Sunshine is abundant, so don’t forget sunscreen. Activities like swimming, picnicking, and attending local festivals are popular.
What is Thornton, Colorado Like in Fall
Fall offers comfortable and cooler weather. Temperatures in September average in the low 70s, descending to the mid-50s by November. The changing leaves provide a picturesque backdrop for outdoor events and activities.
This season experiences less rainfall compared to spring, making it ideal for hiking and biking. The crisp air and scenic environment make it a favorite time for locals to spend time outdoors.
What is Thornton, Colorado Like in Winter
Winters in Thornton can be chilly, with average daily highs around 45°F in December and January.
The cold season spans from November to February, with nighttime lows frequently dipping into the mid-teens.
Snowfall does occur but is usually light. The dry air makes the cold more bearable, and winter sports enthusiasts enjoy nearby ski resorts.
Inside activities, like visiting museums and theaters, are popular during these months.