Climate and monthly weather forecastAriel, WA
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Ariel, Washington, with an average temperature varying between 42.4°F (5.8°C) and 32.2°F (0.1°C). The commencement of January notes an average high-temperature of a still cold 42.4°F (5.8°C), exhibiting little difference from the previous month. Weather in January »Weather in February
February, the last month of the winter in Ariel, is a frosty month, with an average temperature varying between 32.2°F (0.1°C) and 43.5°F (6.4°C). As Ariel steps into February, the average high-temperature is measured at a frosty 43.5°F (6.4°C), displaying minor differences from January's 42.4°F (5.8°C). Weather in February »Weather in March
March, the first month of the spring in Ariel, is still a chilly month, with an average temperature ranging between min 34.3°F (1.3°C) and max 48.4°F (9.1°C). Welcoming March, Ariel notes an average high-temperature of a still chilly 48.4°F (9.1°C), nearly consistent with February's 43.5°F (6.4°C). Weather in March »Weather in April
April in Ariel, Washington, is a cool spring month, with temperature in the range of an average high of 54.3°F (12.4°C) and an average low of 36.7°F (2.6°C). Ariel's transition into April is noticed by a slight rise in the average high-temperature, advancing from a chilly 48.4°F (9.1°C) in March to a fresh 54.3°F (12.4°C). Weather in April »Weather in May
May, the last month of the spring in Ariel, is an enjoyable month, with an average temperature fluctuating between 63.5°F (17.5°C) and 41.5°F (5.3°C). May's arrival signals a temperature shift, moving from a fresh 54.3°F (12.4°C) in April to a refreshing 63.5°F (17.5°C). Weather in May »Weather in June
June, the first month of the summer in Ariel, is a pleasant month, with an average temperature varying between 45°F (7.2°C) and 68.5°F (20.3°C). The arrival of June records an average high-temperature of a pleasant 68.5°F (20.3°C), closely related to the 63.5°F (17.5°C) observed in May. Weather in June »Weather in July
July is a moderately hot summer month in Ariel, Washington, with an average temperature varying between 76.6°F (24.8°C) and 48.9°F (9.4°C). With the transition into July, Ariel experiences a subtle uplift in average high-temperatures, adjusting from an agreeable 68.5°F (20.3°C) in June to a warm 76.6°F (24.8°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Ariel, Washington, with an average temperature fluctuating between 77.7°F (25.4°C) and 50.5°F (10.3°C). The temperatures reach their highest averages in August, with highs of 77.7°F (25.4°C) and lows of 50.5°F (10.3°C). Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Ariel, Washington, with an average temperature fluctuating between 47.7°F (8.7°C) and 70.2°F (21.2°C). September brings a slight decrease in the average high-temperature, shifting from a moderately hot 77.7°F (25.4°C) in August to an agreeable 70.2°F (21.2°C). Weather in September »Weather in October
October, like September, is a moderate autumn month in Ariel, Washington, with an average temperature ranging between max 58.1°F (14.5°C) and min 42.6°F (5.9°C). With the onset of October, Ariel's average high-temperature adjusts, receding from September's pleasant 70.2°F (21.2°C) to a refreshing 58.1°F (14.5°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Ariel, Washington, with an average temperature varying between 47.3°F (8.5°C) and 36.3°F (2.4°C). In November, the average high-temperature decreases from a mild 58.1°F (14.5°C) in October to a chilly 47.3°F (8.5°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Ariel, Washington, with an average temperature ranging between max 40.6°F (4.8°C) and min 30.7°F (-0.7°C). Ariel experiences its lowest temperatures in December, with an average peak of 40.6°F (4.8°C) and a low of 30.7°F (-0.7°C). Weather in December »Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The month with the most rainfall in Ariel is January, when the rain falls for 18.3 days and typically aggregates up to 7.64" (194mm) of precipitation.
Throughout the year, in Ariel, Washington, there are 182.3 rainfall days, and 48.11" (1222mm) of precipitation is accumulated.
Months with snowfall in Ariel, Washington, are January through March, November and December.
In Ariel, Washington, during the entire year, snow falls for 11.4 days and aggregates up to 11.1" (282mm) of snow.
With an average relative humidity of 88%, February is the most humid month in Ariel, Washington.
The month with the most snowfall is February, when snow falls for 4.2 days and typically aggregates up to 4.02" (102mm) of snow.
The month with the least sunshine is February, with an average of 3.2h of sunshine.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Ariel, 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.
April through October are months without snowfall in Ariel, Washington.
With an average of 15h and 42min of daylight, June has the longest days of the year in Ariel, Washington.
June and July, with an average maximum UV index of 5, are months with the highest UV index.
July and August, with an average relative humidity of 69%, are the least humid months in Ariel, Washington.
The month with the least rainfall in Ariel, Washington, is July, when the rain falls for 6.7 days and typically collects 0.43" (11mm) of precipitation.
In Ariel, Washington, the peak temperatures are generally noted in August, averaging a high of 77.7°F (25.4°C) and a low of 50.5°F (10.3°C).
August has the most sunshine of the year in Ariel, with an average of 10.5h of sunshine.
November is the month with the lowest UV index, with an average maximum UV index of 1.
Ariel's coldest month, December, registers temperatures that range from a high of 40.6°F (4.8°C) to a low of 30.7°F (-0.7°C).
December has the shortest days of the year in Ariel, with an average of 8h and 42min of daylight.
Average temperature
Ariel, WA
The warmest month (with the highest average high temperature) is August (77.7°F).
The month with the lowest average high temperature is December (40.6°F).
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (30.7°F).
Average pressure
Ariel, WA
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
30.06"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
30.03"Hg
- Average pressure in July:
30.03"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed
Ariel, WA
- Average wind speed in January:
6.1mph - Average wind speed in February:
5.4mph - Average wind speed in March:
5.3mph - Average wind speed in April:
4.7mph - Average wind speed in May:
4.4mph - Average wind speed in June:
4.3mph
- Average wind speed in July:
4.5mph - Average wind speed in August:
4.1mph - Average wind speed in September:
4.2mph - Average wind speed in October:
4.7mph - Average wind speed in November:
5.6mph - Average wind speed in December:
5.7mph
The windiest month (with the highest average wind speed) is January (6.1mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity
Ariel, WA
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are July and August (69%).
Average rainfall
Ariel, WA
- Average rainfall in January:
7.64" - Average rainfall in February:
5.39" - Average rainfall in March:
5.16" - Average rainfall in April:
4.13" - Average rainfall in May:
2.68" - Average rainfall in June:
1.89"
- Average rainfall in July:
0.43" - Average rainfall in August:
0.59" - Average rainfall in September:
2.32" - Average rainfall in October:
5.2" - Average rainfall in November:
5.71" - Average rainfall in December:
6.97"
The wettest month (with the highest rainfall) is January (7.64").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days
Ariel, WA
- Average rainfall days in January:
18.3 days - Average rainfall days in February:
17.4 days - Average rainfall days in March:
20.8 days - Average rainfall days in April:
19.6 days - Average rainfall days in May:
14.3 days - Average rainfall days in June:
12.3 days
- Average rainfall days in July:
6.7 days - Average rainfall days in August:
5.6 days - Average rainfall days in September:
11.6 days - Average rainfall days in October:
16.6 days - Average rainfall days in November:
19.6 days - Average rainfall days in December:
19.5 days
The month with the highest number of rainy days is March (20.8 days).
The month with the least rainy days is August (5.6 days).
Average snowfall
Ariel, WA
The month with the highest snowfall is February (4.02").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Ariel, WA
- Average snowfall days in January:
2.3 days - Average snowfall days in February:
4.2 days - Average snowfall days in March:
2.1 days - Average snowfall days in April:
0.1 days - Average snowfall days in May:
0 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:
0 days - Average snowfall days in November:
0.7 days - Average snowfall days in December:
2 days
The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Ariel, WA
- Average daylight in January:
9h and 6min - Average daylight in February:
10h and 24min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 36min - Average daylight in May:
15h and 0min - Average daylight in June:
15h and 42min
- Average daylight in July:
15h and 18min - Average daylight in August:
14h and 6min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 30min - Average daylight in December:
8h and 42min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in January:
3h and 24min - Average sunshine in February:
3h and 12min - Average sunshine in March:
4h and 30min - Average sunshine in April:
6h and 12min - Average sunshine in May:
7h and 42min - Average sunshine in June:
8h and 18min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 30min - Average sunshine in September:
8h and 24min - Average sunshine in October:
4h and 36min - Average sunshine in November:
3h and 30min - Average sunshine in December:
3h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days
Ariel, WA
- Average sunshine days in January:
10.2 days - Average sunshine days in February:
8.1 days - Average sunshine days in March:
8.3 days - Average sunshine days in April:
8.9 days - Average sunshine days in May:
15 days - Average sunshine days in June:
15.7 days
- Average sunshine days in July:
22.6 days - Average sunshine days in August:
23.4 days - Average sunshine days in September:
17.1 days - Average sunshine days in October:
13.5 days - Average sunshine days in November:
9.1 days - Average sunshine days in December:
9.2 days
The month with the most sunshine days is August (23.4 days).
The month with the least sunshine days is February (8.1 days).
Average UV index
Ariel, WA
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover
Ariel, WA
The months with the most cloud cover are February and December (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility
Ariel, WA
The months with the highest visibility are June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, May, November and December (4mi).
