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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, the same as December, is another cold winter month in Thornton, Washington, with an average temperature ranging between min 26.1°F (-3.3°C) and max 36.1°F (2.3°C). The advent of January reveals an average high-temperature of a still cold 36.1°F (2.3°C), showing minimal difference from the prior month. Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Thornton, Washington, with an average temperature ranging between max 39°F (3.9°C) and min 28°F (-2.2°C). Thornton experiences a minor change to a still wintry 39°F (3.9°C) in average high-temperature during February, closely reflecting January. Weather in February »
Weather in March
March, the first month of the spring in Thornton, is a chilly month, with an average temperature varying between 46.9°F (8.3°C) and 33.1°F (0.6°C). Thornton, Washington, observes a slight ascent in average high-temperatures during March, adjusting from a cold 39°F (3.9°C) in February to a chilly 46.9°F (8.3°C). Weather in March »
Weather in April
April is a fresh spring month in Thornton, Washington, with an average temperature ranging between max 55°F (12.8°C) and min 37°F (2.8°C). With the onset of April, Thornton's average high-temperature sees a modest rise, moving from March's chilly 46.9°F (8.3°C) to a cool 55°F (12.8°C). Weather in April »
Weather in May
The last month of the spring, May, is an enjoyable month in Thornton, Washington, with an average temperature ranging between max 64.4°F (18°C) and min 43°F (6.1°C). The beginning of May marks a shift in the average high-temperature, moving from April's fresh 55°F (12.8°C) to an enjoyable 64.4°F (18°C). Weather in May »
Weather in June
The first month of the summer, June, is an agreeable month in Thornton, Washington, with an average temperature varying between 48.6°F (9.2°C) and 71.1°F (21.7°C). June marks a minor ascent in the average high-temperature, adjusting from May's refreshing 64.4°F (18°C) to an agreeable 71.1°F (21.7°C). Weather in June »
Weather in July
July is a moderately hot summer month in Thornton, Washington, with an average temperature varying between 83.3°F (28.5°C) and 57°F (13.9°C). July's onset brings a temperature rise, moving from a pleasant 71.1°F (21.7°C) in June to a moderately hot 83.3°F (28.5°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Thornton, Washington, with an average temperature varying between 60.4°F (15.8°C) and 83.5°F (28.6°C). With average temperatures fluctuating between a high of 83.5°F (28.6°C) and a low of 60.4°F (15.8°C), August stands out as the warmest month. Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Thornton, Washington, with an average temperature varying between 52.9°F (11.6°C) and 73.2°F (22.9°C). The commencement of September indicates a shift in the average high-temperature, receding from August's moderately hot 83.5°F (28.6°C) to an agreeable 73.2°F (22.9°C). Weather in September »
Weather in October
October, the same as September, in Thornton, Washington, is a moderate autumn month, with an average temperature varying between 57.6°F (14.2°C) and 42.1°F (5.6°C). The drop of average high-temperatures is noticeable in October, with a decrease from a pleasant 73.2°F (22.9°C) in September to a moderate 57.6°F (14.2°C). Weather in October »
Weather in November
November, the last month of the autumn in Thornton, is another chilly month, with an average temperature varying between 43.9°F (6.6°C) and 32.9°F (0.5°C). In November, the average high-temperature goes from a mild 57.6°F (14.2°C) in October to a frosty 43.9°F (6.6°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Thornton, Washington, with an average temperature ranging between min 24.6°F (-4.1°C) and max 34.7°F (1.5°C). The month of December, characterized by an average high of 34.7°F (1.5°C) and a low of 24.6°F (-4.1°C), is recognized as the coldest. Weather in December »
[Resources]Frequently asked questions
What is the most humid month in Thornton?
January is the most humid month, with an average relative humidity of 85%.
How much does it rain in Thornton?
In Thornton, Washington, during the entire year, the rain falls for 120.2 days and collects up to 14.69" (373mm) of precipitation.
When does it snow in Thornton?
Months with snowfall in Thornton, Washington, are January through May, September through December.
How many days does it snow in Thornton?
In Thornton, Washington, during the entire year, snow falls for 39.6 days and aggregates up to 22.68" (576mm) of snow.
What is the month with the least sunshine in Thornton?
The months with the least sunshine in Thornton, Washington, are January and December, with an average of 4.6h of sunshine.
When is the lowest UV index in Thornton?
The months with the lowest UV index in Thornton, Washington, are January, February, November and December, with an average maximum UV index of 2.
What is the snowiest month in Thornton?
February is the month with the most snowfall. Snow falls for 9.6 days and accumulates 6.69" (170mm) of snow.
When is Daylight Saving Time (DST) in Thornton?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
When it does not snow in Thornton?
In Thornton, Washington, snow does not fall in June through August.
When are the longest days in Thornton?
With an average of 15h and 48min of daylight, June has the longest days of the year.
What is the driest month in Thornton?
July is the month with the least rainfall in Thornton, Washington. Rain falls for 4.5 days and accumulates 0.28" (7mm) of precipitation.
What are the months with the most sunshine in Thornton?
The months with the most sunshine in Thornton, Washington, are July and August, with an average of 12h of sunshine.
When is the highest UV index in Thornton?
With an average maximum UV index of 7, July is the month with the highest UV index.
What time of the year is the hottest in Thornton?
With an average high-temperature of 83.5°F (28.6°C) and an average low-temperature of 60.4°F (15.8°C), August is the warmest month in Thornton, Washington.
What is the least humid month in Thornton?
With an average relative humidity of 37%, August is the least humid month.
What is the coldest time of year in Thornton?
The coldest time of the year is December, with temperatures averaging a high of 34.7°F (1.5°C) and a low of 24.6°F (-4.1°C).
What is the wettest month in Thornton?
The month with the most rainfall in Thornton is December, when the rain falls for 9.5 days and typically aggregates up to 1.93" (49mm) of precipitation.
What is the month with the shortest days in Thornton?
December has the shortest days of the year in Thornton, with an average of 8h and 36min of daylight.
Average temperature
Thornton, WA
The warmest month (with the highest average high temperature) is August (83.5°F).
The month with the lowest average high temperature is December (34.7°F).
The month with the highest average low temperature is August (60.4°F).
The coldest month (with the lowest average low temperature) is December (24.6°F).
Average pressure
Thornton, WA
- Average pressure in January:
30.19"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.17"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed
Thornton, WA
- Average wind speed in January:
7.3mph - Average wind speed in February:
7.3mph - Average wind speed in March:
8mph - Average wind speed in April:
7.9mph - Average wind speed in May:
6.4mph - Average wind speed in June:
6.6mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity
Thornton, WA
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (37%).
Average rainfall
Thornton, WA
- Average rainfall in January:
1.73" - Average rainfall in February:
1.54" - Average rainfall in March:
1.61" - Average rainfall in April:
1.42" - Average rainfall in May:
1.61" - Average rainfall in June:
1.06"
- Average rainfall in July:
0.28" - Average rainfall in August:
0.39" - Average rainfall in September:
0.47" - Average rainfall in October:
1.26" - Average rainfall in November:
1.38" - Average rainfall in December:
1.93"
The wettest month (with the highest rainfall) is December (1.93").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days
Thornton, WA
- Average rainfall days in January:
10.5 days - Average rainfall days in February:
9.8 days - Average rainfall days in March:
13.7 days - Average rainfall days in April:
14.6 days - Average rainfall days in May:
12.5 days - Average rainfall days in June:
10.6 days
- Average rainfall days in July:
4.5 days - Average rainfall days in August:
5.1 days - Average rainfall days in September:
6.4 days - Average rainfall days in October:
11.3 days - Average rainfall days in November:
11.7 days - Average rainfall days in December:
9.5 days
The month with the highest number of rainy days is April (14.6 days).
The month with the least rainy days is July (4.5 days).
Average snowfall
Thornton, WA
- Average snowfall in January:
5.12" - Average snowfall in February:
6.69" - Average snowfall in March:
2.95" - Average snowfall in April:
0.75" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.69").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Thornton, WA
- Average snowfall days in January:
8.7 days - Average snowfall days in February:
9.6 days - Average snowfall days in March:
4.8 days - Average snowfall days in April:
2.2 days - Average snowfall days in May:
0.3 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:
0.3 days - Average snowfall days in November:
4 days - Average snowfall days in December:
9.6 days
The months with the highest number of snowfall days are February and December (9.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Thornton, WA
- Average daylight in January:
9h and 0min - Average daylight in February:
10h and 2min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 4min - Average daylight in May:
15h and 1min - Average daylight in June:
15h and 5min
- Average daylight in July:
15h and 3min - Average daylight in August:
14h and 1min - Average daylight in September:
12h and 3min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 2min - Average daylight in December:
8h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in January:
4h and 4min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 5min - Average sunshine in April:
9h and 2min - Average sunshine in May:
10h and 2min - Average sunshine in June:
10h and 5min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 2min - Average sunshine in October:
6h and 5min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 4min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 4h and 36min).
Average sunshine days
Thornton, WA
- Average sunshine days in January:
15 days - Average sunshine days in February:
12.2 days - Average sunshine days in March:
14 days - Average sunshine days in April:
12.9 days - Average sunshine days in May:
16.1 days - Average sunshine days in June:
17.8 days
- Average sunshine days in July:
24.6 days - Average sunshine days in August:
22.8 days - Average sunshine days in September:
22.4 days - Average sunshine days in October:
17.9 days - Average sunshine days in November:
15.2 days - Average sunshine days in December:
15.5 days
The month with the most sunshine days is July (24.6 days).
The month with the least sunshine days is February (12.2 days).
Average UV index
Thornton, WA
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Thornton, WA
The months with the most cloud cover are January and December (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility
Thornton, WA
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Thornton, Washington, USA
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