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Contents
- 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
Weather in January
January, like December, in Thornton, Colorado, is another cold winter month, with an average temperature ranging between min 23.2°F (-4.9°C) and max 42.4°F (5.8°C). The onset of January notes an average high-temperature of a still cold 42.4°F (5.8°C), subtly shifted from December's 41.2°F (5.1°C). Weather in January »
Weather in February
February, the last month of the winter in Thornton, is also a wintry month, with an average temperature ranging between min 22.5°F (-5.3°C) and max 42.4°F (5.8°C). The beginning of February is characterized by an average high temperature of a still icy 42.4°F (5.8°C), consistent with January's weather. Weather in February »
Weather in March
March, the first month of the spring in Thornton, is a fresh month, with an average temperature varying between 31.5°F (-0.3°C) and 54.1°F (12.3°C). The shift from February to March is marked by an increase in the average high-temperature, moving from a cold 42.4°F (5.8°C) to a cool 54.1°F (12.3°C). Weather in March »
Weather in April
April is a refreshing spring month in Thornton, Colorado, with temperature in the range of an average high of 60.3°F (15.7°C) and an average low of 36.1°F (2.3°C). April brings a slight elevation in the average high-temperature, transitioning from March's cool 54.1°F (12.3°C) to a refreshing 60.3°F (15.7°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Thornton, Colorado, with an average temperature fluctuating between 69.1°F (20.6°C) and 44.4°F (6.9°C). May signifies a subtle uplift in the average high-temperature, adjusting from a mild 60.3°F (15.7°C) in April to a pleasant 69.1°F (20.6°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Thornton, Colorado, with an average temperature ranging between max 84.2°F (29°C) and min 56.5°F (13.6°C). Thornton witnesses a significant increase in the average high-temperature with the arrival of June, rising from May's pleasant 69.1°F (20.6°C) to a moderately hot 84.2°F (29°C). Weather in June »
Weather in July
July in Thornton, Colorado, is a tropical summer month, with an average temperature fluctuating between 88.3°F (31.3°C) and 61.7°F (16.5°C). July, known for its average high temperature of 88.3°F (31.3°C) and an average low temperature of 61.7°F (16.5°C), is the warmest month. In July, the heat index is appraised at a hot 89.6°F (32°C). Weather in July »
Weather in August
August, the last month of the summer in Thornton, is another hot month, with an average temperature ranging between max 87.1°F (30.6°C) and min 60.3°F (15.7°C). In August, the average high-temperature registers at a still tropical 87.1°F (30.6°C), nearly identical to July's 88.3°F (31.3°C). Weather in August »
Weather in September
September, the first month of the autumn in Thornton, is still a warm month, with an average temperature fluctuating between 53.8°F (12.1°C) and 79.5°F (26.4°C). The onset of September aligns with a soft reduction in the average high-temperature, gently falling from a hot 87.1°F (30.6°C) in August to a moderately hot 79.5°F (26.4°C). Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Thornton, Colorado, with temperature in the range of an average high of 63.3°F (17.4°C) and an average low of 40.1°F (4.5°C). The shift from September to October is characterized by a clear decrease in the average high-temperature, reducing from a moderately hot 79.5°F (26.4°C) to a comfortable 63.3°F (17.4°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Thornton, Colorado, with temperature in the range of an average low of 30.6°F (-0.8°C) and an average high of 52.7°F (11.5°C). The average high-temperature decreases in November, shifting from a comfortable 63.3°F (17.4°C) in October to a cool 52.7°F (11.5°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Thornton, Colorado, with an average temperature varying between 21.9°F (-5.6°C) and 41.2°F (5.1°C). December, with an average high of 41.2°F (5.1°C) and a low of 21.9°F (-5.6°C), signifies the coldest month of the year. Weather in December »
[Resources]Frequently asked questions
What is the driest month in Thornton?
January and December are months with the least rain when the rain falls for 2.3 days and typically aggregates up to 0.08" (2mm) of rain.
How much does it rain in Thornton?
In Thornton, Colorado, during the entire year, the rain falls for 48.3 days and collects up to 3.19" (81mm) of precipitation.
When does it snow in Thornton?
January through May, October through December are months with snowfall in Thornton, Colorado.
How much does it snow in Thornton?
In Thornton, Colorado, during the entire year, snow falls for 19.6 days and aggregates up to 8.5" (216mm) of snow.
When is the lowest UV index in Thornton?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What is the most humid month in Thornton?
The most humid month is February, with an average relative humidity of 64%.
What is the month with the least sunshine in Thornton?
February has the least sunshine of the year in Thornton, with an average of 6.7h of sunshine.
When is Daylight Saving Time (DST) in Thornton?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Thornton, 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.
When it does not snow in Thornton?
In Thornton, Colorado, snow does not fall in June through September.
When are the longest days in Thornton?
With an average of 15h and 0min of daylight, June has the longest days of the year in Thornton.
What is the month with the most sunshine in Thornton?
The months with the most sunshine in Thornton are June and July, with an average of 11.9h of sunshine.
What is the month with the highest UV index in Thornton?
June through August, with an average maximum UV index of 6, are months with the highest UV index in Thornton, Colorado.
What month is the hottest in Thornton?
In Thornton, the average highest temperatures are observed in July, with a high of 88.3°F (31.3°C) and a low of 61.7°F (16.5°C).
What is the rainiest month in Thornton?
The month with the most rainfall in Thornton is July, when the rain falls for 8.2 days and typically aggregates up to 0.59" (15mm) of precipitation.
What is the least humid month in Thornton?
The least humid month is August, with an average relative humidity of 39%.
What is the snowiest month in Thornton?
The month with the most snowfall is October, when snow falls for 1.7 days and typically aggregates up to 1.42" (36mm) of snow.
What part of the year is the coldest in Thornton?
Thornton's coldest month, December, registers temperatures that range from a high of 41.2°F (5.1°C) to a low of 21.9°F (-5.6°C).
What is the month with the shortest days in Thornton?
The month with the shortest days is December, with an average of 9h and 24min of daylight.
Average temperature
Thornton, CO
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (41.2°F).
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).
Average pressure
Thornton, CO
- Average pressure in January:
30.14"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:
29.92"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
30"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are April and June (29.91"Hg).
Average wind speed
Thornton, CO
- Average wind speed in January:
6.1mph - Average wind speed in February:
6.3mph - Average wind speed in March:
6.7mph - Average wind speed in April:
6.9mph - Average wind speed in May:
6.3mph - Average wind speed in June:
6.5mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is December (5.8mph).
Average humidity
Thornton, CO
The month with the highest relative humidity is February (64%).
The month with the lowest relative humidity is August (39%).
Average rainfall
Thornton, CO
- Average rainfall in January:
0.08" - Average rainfall in February:
0.16" - Average rainfall in March:
0.31" - Average rainfall in April:
0.24" - Average rainfall in May:
0.55" - Average rainfall in June:
0.35"
- Average rainfall in July:
0.59" - Average rainfall in August:
0.24" - Average rainfall in September:
0.16" - Average rainfall in October:
0.24" - Average rainfall in November:
0.2" - Average rainfall in December:
0.08"
The wettest month (with the highest rainfall) is July (0.59").
The driest months (with the least rainfall) are January and December (0.08").
Average rainfall days
Thornton, CO
- Average rainfall days in January:
2.3 days - Average rainfall days in February:
1.2 days - Average rainfall days in March:
4.7 days - Average rainfall days in April:
5.3 days - Average rainfall days in May:
6.2 days - Average rainfall days in June:
5.7 days
- Average rainfall days in July:
8.2 days - Average rainfall days in August:
5.3 days - Average rainfall days in September:
3.3 days - Average rainfall days in October:
2.3 days - Average rainfall days in November:
2.1 days - Average rainfall days in December:
1.7 days
The month with the highest number of rainy days is July (8.2 days).
The month with the least rainy days is February (1.2 days).
Average snowfall
Thornton, CO
- Average snowfall in January:
0.71" - Average snowfall in February:
1.22" - Average snowfall in March:
1.1" - Average snowfall in April:
0.91" - Average snowfall in May:
1.26" - Average snowfall in June:
0"
The month with the highest snowfall is October (1.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Thornton, CO
- Average snowfall days in January:
3.2 days - Average snowfall days in February:
4.7 days - Average snowfall days in March:
2.8 days - Average snowfall days in April:
2.1 days - Average snowfall days in May:
0.8 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:
1.7 days - Average snowfall days in November:
2.3 days - Average snowfall days in December:
2 days
The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Thornton, CO
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
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:
7h and 0min - Average sunshine in February:
6h and 4min - Average sunshine in March:
9h and 1min - Average sunshine in April:
10h and 5min - Average sunshine in May:
11h and 2min - Average sunshine in June:
11h and 5min
- Average sunshine in July:
11h and 5min - Average sunshine in August:
11h and 5min - Average sunshine in September:
11h and 1min - Average sunshine in October:
7h and 3min - Average sunshine in November:
7h and 1min - Average sunshine in December:
7h and 0min
The months with the most sunshine are June and July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).
Average sunshine days
Thornton, CO
- Average sunshine days in January:
27.4 days - Average sunshine days in February:
23.2 days - Average sunshine days in March:
25.3 days - Average sunshine days in April:
22.8 days - Average sunshine days in May:
21.9 days - Average sunshine days in June:
20.1 days
- Average sunshine days in July:
19.6 days - Average sunshine days in August:
22.3 days - Average sunshine days in September:
24.5 days - Average sunshine days in October:
26.7 days - Average sunshine days in November:
26.5 days - Average sunshine days in December:
28.5 days
The month with the most sunshine days is December (28.5 days).
The month with the least sunshine days is July (19.6 days).
Average UV index
Thornton, 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
Thornton, CO
The months with the most cloud cover are February, April and May (Cloud cover 25).
The month with the least cloud cover is September (Cloud cover 14).
Average visibility
Thornton, 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).
Thornton, Colorado, USA
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