Climate and monthly weather forecastBrighton, CO
Climate and monthly weather forecast
The climate of Brighton
Brighton's geographical placement confirms its Köppen climate classification as BSk. This categorization is indicative of a mid-latitude steppe, offering dry, typically hot summers and mildly cold winters. Analyzing the weather data throughout the course of a year reveals fluctuations in various climatic factors.Rainfall measures between 0.12" (3mm) and 0.98" (25mm). Precipitation peaks in May, with rainfall reaching 0.98" (25mm), while the driest month is December, with rainfall a mere 0.12" (3mm). Monthly average temperatures vary substantially, ranging from a high of 88.9°F (31.6°C) in July to a low of 21.2°F (-6°C) in December.
Humidity presents a less substantial fluctuation, oscillating between a minimum of 40% in August and a peak of 64% in January and February. Brighton experiences seasonal snowfall predominantly from October to April, with the heaviest snowfall in February weighing in at 1.89" (48mm). Snow-free conditions predominantly prevail from May to September.
The best time to visit Brighton
The ideal period for a visit to Brighton is during the summer months. Average temperatures reach a pleasant between 69.4°F (20.8°C) in May and 88.9°F (31.6°C) in July, providing the perfect environment for outdoor activities. Humidity levels comfortably sit between 42 and 43% from June to July, preventing any damp discomfort. Sunshine hours peak at 11.8 in June and July, maximizing daylight exposure.The worst time to visit Brighton
Travelers are suggested to avoid Brighton during the depths of winter. The chilly temperatures dip to a low of 21.2°F (-6°C) in December. Reduced daylight hours at 9.4 hours coupled with lower sunshine hours at 6.8 in December do not favor outdoor activities. The increased likelihood of snowfall during winter, with December receiving up to 0.75" (19mm), can disrupt travel plans and limit outdoor experiences.Spring weather in Brighton
During the spring months, temperatures in Brighton gradually climb from 61.3°F (16.3°C) in April to 69.4°F (20.8°C) in May. Correspondingly, the percentage of cloud coverage decreases from 28 to 26%. The expected rainfall is quite substantial, with measures reaching 0.51" (13mm) in March and 0.98" (25mm) in May. Visitors can expect to enjoy longer daylight hours, expanding from 13.3 to 14.4 hours from April to May.Summer weather in Brighton
Brighton's summer months are characterized by warm temperatures, generally fluctuating between 84.7°F (29.3°C) in June and 88.2°F (31.2°C) in August. Precipitation levels are relatively high during the early summer months with rainfall reaching 0.94" (24mm) in July. As summer progresses, humidity decreases from 43% in June to 40% in August.Autumn weather in Brighton
During the autumn months, temperatures in Brighton show a steady decrease from 79.7°F (26.5°C) in September to 52.3°F (11.3°C) in November. Correspondingly, the daylight hours decrease from 12.4 in September to 10 in November. Rainfall during this period reduces from 0.43" (11mm) in both September and October to a mere 0.28" (7mm) in November.Winter weather in Brighton
Winter in Brighton showcases lower temperatures that range from 40.8°F (4.9°C) in December to 22.8°F (-5.1°C) in January. Cloud coverage increases to 27% in February offering less sunshine hours. Frequency of snowfall intensifies during these winter months with snow reaching up to 1.89" (48mm) in February. Visitors may also experience reduced visibility, with values at 6 miles throughout this season.Weather in January
Brighton, Colorado's weather in January is winter defined. It features some of the lowest temperature conditions for the year with the mercury dipping to a bracing 22.8°F (-5.1°C). Snowfall is expected, creating a picturesque winter scene. Weather in January »Weather in February
February continues the chilly trend with temperatures closely mirroring those of January. The month maintains low temperatures in Brighton, registering marginally warmer than the preceding month. An increased snowfall from 1.34" (34mm) to 1.89" (48mm) announces the presence of late winter. Weather in February »Weather in March
An arrival of March in Brighton signals the onset of spring. With a tangible rise in median temperatures, the city starts to warm up, finding respite from the intense winter chill. Rainfall increases to one of its highest points for the year at 0.51" (13mm), replacing snow as the dominant form of precipitation. Weather in March »Weather in April
April further accelerates the transition from the chill of winter towards milder temperatures. Brighton experiences a reduced level of humidity, standing at 50% compared to March's 52%, causing a relatively dryer climate. The city sees one of the year's highest levels of rainfall at 0.47" (12mm), providing nourishment for the burgeoning spring flora. Weather in April »Weather in May
May sees the proper advent of spring in Brighton, with warmer temperatures becoming the norm. One notable change is the increased amount of sunshine Brighton experiences during this month. The weather encourages outdoor activities with rainfall dropping to 0.98" (25mm) from the April showers. Weather in May »Weather in June
June brings the arrival of summer, allowing Brighton to soak in the warmth. The mercury climbs to its highest at 84.7°F (29.3°C), marking this month out as the start of the hot season. A slight dip in rainfall from 0.98" (25mm) in May to 0.67" (17mm) in June enhances the sunny disposition. Weather in June »Weather in July
July in Brighton is characterized by the nurturing rays of the summer sun. It hosts the highest temperatures of the year, peaking at an inviting 88.9°F (31.6°C). Despite this, the rainfall is still a notable feature, with a sharp increase to 0.94" (24mm) compared to June's 0.67" (17mm). Weather in July »Weather in August
August continues the trend of high temperatures in Brighton, only minutely cooler than July's peak. With rainfall decreasing to 0.59" (15mm), the city experiences a drying spell after July's showers. The UV index remains consistent at 6, ensuring sun protection remains vital. Weather in August »Weather in September
September rings in the transition from the heat of summer to the calm of autumn in Brighton. A perceptible decrease in the average temperature marks the onset of milder weather. There's a notable drop in rainfall, with September receiving 0.43" (11mm), creating a subtle dry spell. Weather in September »Weather in October
October solidifies the presence of fall, with temperatures taking a major dip from the September readings. October witnesses a drop in rainfall to match the cooler conditions. The first snowfall since May occurs this month, transforming the city into a winter wonderland. Weather in October »Weather in November
November in Brighton sees the transformation into full winter mode. The temperatures drop further, and Brighton experiences its first snowfall days since the warmer months. The wind speed picks up slightly, adding to the chill factor. Weather in November »Weather in December
December holds the reigns of winter weather, carrying the coldest conditions of the year in Brighton. One of the coldest temperatures marked in December is 21.2°F (-6°C), adding to the freezing charm. Observably, the city sees minimal rainfall, recording the lowest at 0.12" (3mm). Weather in December »Updated: Jul 20, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January and February, with an average relative humidity of 64%, are most humid months.
In Brighton, during the entire year, the rain falls for 80.6 days and collects up to 5.87" (149mm) of precipitation.
January through May, October through December are months with snowfall.
In Brighton, Colorado, during the entire year, snow falls for 30.9 days and aggregates up to 11.42" (290mm) of snow.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
February is the month with the most snowfall. Snow falls for 6.8 days and accumulates 1.89" (48mm) of snow.
With an average of 6.6h of sunshine, February has the least sunshine of the year.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.
The month with the most rainfall is May, when the rain falls for 10.8 days and typically aggregates up to 0.98" (25mm) of precipitation.
June through September are months without snowfall.
June has the longest days of the year, with an average of 15h and 0min of daylight.
June and July, with an average of 11.8h of sunshine, are months with the most sunshine.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
July, with its high-temperature average of 88.9°F (31.6°C) and a low-temperature average of 61.9°F (16.6°C), is the warmest month.
August is the least humid month, with an average relative humidity of 40%.
In Brighton, the average lowest temperatures are observed in December, with a high of 40.8°F (4.9°C) and a low of 21.2°F (-6°C).
December is the month with the least rainfall. Rain falls for 2.6 days and accumulates 0.12" (3mm) of precipitation.
December has the shortest days of the year, with an average of 9h and 24min of daylight.
Average temperature
Brighton, CO
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is December (40.8°F).
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is December (21.2°F).
Average pressure
Brighton, CO
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
29.99"Hg - Average pressure in April:
29.91"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.99"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
Brighton, CO
- Average wind speed in January:
6.2mph - Average wind speed in February:
6.6mph - Average wind speed in March:
7.2mph - Average wind speed in April:
7.5mph - Average wind speed in May:
6.7mph - Average wind speed in June:
6.8mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6.3mph - Average wind speed in September:
6.2mph - Average wind speed in October:
6.3mph - Average wind speed in November:
6.2mph - Average wind speed in December:
6mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is December (6mph).
Average humidity
Brighton, CO
The months with the highest relative humidity are January and February (64%).
The month with the lowest relative humidity is August (40%).
Average rainfall
Brighton, CO
- Average rainfall in January:
0.2" - Average rainfall in February:
0.24" - Average rainfall in March:
0.51" - Average rainfall in April:
0.47" - Average rainfall in May:
0.98" - Average rainfall in June:
0.67"
- Average rainfall in July:
0.94" - Average rainfall in August:
0.59" - Average rainfall in September:
0.43" - Average rainfall in October:
0.43" - Average rainfall in November:
0.28" - Average rainfall in December:
0.12"
The wettest month (with the highest rainfall) is May (0.98").
The driest month (with the least rainfall) is December (0.12").
Average rainfall days
Brighton, CO
- Average rainfall days in January:
3.3 days - Average rainfall days in February:
3.3 days - Average rainfall days in March:
6.2 days - Average rainfall days in April:
9 days - Average rainfall days in May:
10.8 days - Average rainfall days in June:
9.7 days
- Average rainfall days in July:
10.6 days - Average rainfall days in August:
9.8 days - Average rainfall days in September:
7.2 days - Average rainfall days in October:
5.4 days - Average rainfall days in November:
2.7 days - Average rainfall days in December:
2.6 days
The month with the highest number of rainy days is May (10.8 days).
The month with the least rainy days is December (2.6 days).
Average snowfall
Brighton, CO
- Average snowfall in January:
1.34" - Average snowfall in February:
1.89" - Average snowfall in March:
1.57" - Average snowfall in April:
1.42" - Average snowfall in May:
1.26" - Average snowfall in June:
0"
The month with the highest snowfall is February (1.89").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Brighton, CO
- Average snowfall days in January:
4.8 days - Average snowfall days in February:
6.8 days - Average snowfall days in March:
4.3 days - Average snowfall days in April:
3.1 days - Average snowfall days in May:
1 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:
0.1 days - Average snowfall days in October:
2.5 days - Average snowfall days in November:
3.8 days - Average snowfall days in December:
4.5 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Brighton, CO
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
6h and 48min - Average sunshine in February:
6h and 36min - Average sunshine in March:
8h and 54min - Average sunshine in April:
10h and 30min - Average sunshine in May:
11h and 0min - Average sunshine in June:
11h and 48min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
11h and 42min - Average sunshine in September:
10h and 54min - Average sunshine in October:
7h and 24min - Average sunshine in November:
7h and 6min - Average sunshine in December:
6h and 48min
The months with the most sunshine are June and July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).
Average sunshine days
Brighton, CO
- Average sunshine days in January:
24.3 days - Average sunshine days in February:
20.6 days - Average sunshine days in March:
20.6 days - Average sunshine days in April:
16 days - Average sunshine days in May:
16.4 days - Average sunshine days in June:
16 days
- Average sunshine days in July:
14.8 days - Average sunshine days in August:
15.8 days - Average sunshine days in September:
18.7 days - Average sunshine days in October:
22.7 days - Average sunshine days in November:
24.1 days - Average sunshine days in December:
25.8 days
The month with the most sunshine days is December (25.8 days).
The month with the least sunshine days is July (14.8 days).
Average UV index
Brighton, CO
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Brighton, CO
The month with the most cloud cover is April (Cloud cover 28).
The months with the least cloud cover are June, August and September (Cloud cover 16).
Average visibility
Brighton, CO
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).
