Climate and monthly weather forecastRoyal City, WA
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Royal City, Washington, with temperature in the range of an average high of 35.4°F (1.9°C) and an average low of 25.9°F (-3.4°C). Royal City observes an average high-temperature of a still wintry 35.4°F (1.9°C) in January, barely different from 34.5°F (1.4°C) in December. Weather in January »Weather in February
The last month of the winter, February, is another cold month in Royal City, Washington, with an average temperature ranging between max 41.4°F (5.2°C) and min 29.1°F (-1.6°C). A soft shift in the average high-temperature is noticeable in February, transitioning from 35.4°F (1.9°C) in January to a still cold 41.4°F (5.2°C). Weather in February »Weather in March
March, the first month of the spring in Royal City, is a fresh month, with an average temperature fluctuating between 51.4°F (10.8°C) and 35.8°F (2.1°C). March's arrival sees a rise in the average high-temperature, jumping from February's icy 41.4°F (5.2°C) to a cool 51.4°F (10.8°C). Weather in March »Weather in April
April is a comfortable spring month in Royal City, Washington, with an average temperature fluctuating between 61.3°F (16.3°C) and 41.5°F (5.3°C). The arrival of April sees a shift in the average high-temperature, moving from a cool 51.4°F (10.8°C) in March to a comfortable 61.3°F (16.3°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Royal City, Washington, with an average temperature varying between 71.2°F (21.8°C) and 49.1°F (9.5°C). As Royal City, Washington, transitions into May, a rise in the average high-temperature is observed, moving from a comfortable 61.3°F (16.3°C) in April to a pleasant 71.2°F (21.8°C). Weather in May »Weather in June
June, the first month of the summer in Royal City, is a warm month, with an average temperature ranging between max 78.6°F (25.9°C) and min 54.1°F (12.3°C). The coming of June brings a minor shift in Royal City's weather, with average high-temperatures adjusting from May's agreeable 71.2°F (21.8°C) to a moderately hot 78.6°F (25.9°C). Weather in June »Weather in July
July is a tropical summer month in Royal City, Washington, with an average temperature fluctuating between 60.4°F (15.8°C) and 88.3°F (31.3°C). The yearly peak temperatures occur in July and August, averaging a high-temperature of 88.3°F (31.3°C). Weather in July »Weather in August
August, the last month of the summer in Royal City, is another hot month, with an average temperature ranging between min 61.5°F (16.4°C) and max 88.3°F (31.3°C). Royal City witnesses its peak temperatures during July and August, when the average high-temperature reaches 88.3°F (31.3°C). Weather in August »Weather in September
September, the first month of the autumn in Royal City, is also a moderately hot month, with an average temperature fluctuating between 76.1°F (24.5°C) and 54.7°F (12.6°C). In September, the meteorological conditions alter, with the average high-temperature shifting from a hot 88.3°F (31.3°C) in August to a moderately hot 76.1°F (24.5°C). Weather in September »Weather in October
October, the same as September, in Royal City, Washington, is another refreshing autumn month, with an average temperature ranging between min 43.7°F (6.5°C) and max 60.1°F (15.6°C). The shift into October is marked by a considerable temperature decrease, with the average high-temperature dropping from a moderately hot 76.1°F (24.5°C) in September to a moderate 60.1°F (15.6°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Royal City, Washington, with an average temperature varying between 32.9°F (0.5°C) and 45.5°F (7.5°C). The drop of average high-temperatures is noticeable in November, with a decrease from a refreshing 60.1°F (15.6°C) in October to a chilly 45.5°F (7.5°C). Weather in November »Weather in December
December, the first month of the winter in Royal City, is also a wintry month, with an average temperature ranging between max 34.5°F (1.4°C) and min 24.3°F (-4.3°C). With average temperatures fluctuating between a high of 34.5°F (1.4°C) and a low of 24.3°F (-4.3°C), December stands out as the coldest month. Weather in December »Updated: Aug 25, 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 most humid month is January, with an average relative humidity of 83%.
The wettest months are January and December, with an average 0.87" (22mm) of rainfall.
In Royal City, during the entire year, the rain falls for 86.4 days and collects up to 6.38" (162mm) of precipitation.
Months with snowfall are January through April, September, November and December.
In Royal City, during the entire year, snow falls for 22.3 days and aggregates up to 10" (254mm) of snow.
The month with the least sunshine is January, with an average of 4.9h of sunshine.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
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.
May through August and October are months without snowfall in Royal City.
June has the longest days of the year, with an average of 15h and 48min of daylight.
Royal City sees the average highest temperatures during the months of July and August, peaking at 88.3°F (31.3°C).
The least humid month is July, with an average relative humidity of 37%.
The months with the most sunshine are July and August, with an average of 12h of sunshine.
The month with the highest UV index is July, with an average maximum UV index of 7.
The month with the least rainfall is August, when the rain falls for 3.5 days and typically collects 0.2" (5mm) of precipitation.
Royal City's December weather, marked by an average high temperature of 34.5°F (1.4°C) and an average low temperature of 24.3°F (-4.3°C), is the coldest in the year.
December is the month with the most snowfall in Royal City. Snow falls for 6.5 days and accumulates 3.43" (87mm) of snow.
With an average of 8h and 36min of daylight, December has the shortest days of the year.
Average temperature
Royal City, WA
The warmest months (with the highest average high temperature) are July and August (88.3°F).
The month with the lowest average high temperature is December (34.5°F).
The month with the highest average low temperature is August (61.5°F).
The coldest month (with the lowest average low temperature) is December (24.3°F).
Average pressure
Royal City, WA
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed
Royal City, WA
- Average wind speed in January:
4.9mph - Average wind speed in February:
5.8mph - Average wind speed in March:
6.8mph - Average wind speed in April:
7.6mph - Average wind speed in May:
7.1mph - Average wind speed in June:
7.2mph
- Average wind speed in July:
6.8mph - Average wind speed in August:
6.4mph - Average wind speed in September:
6.3mph - Average wind speed in October:
5.8mph - Average wind speed in November:
5.8mph - Average wind speed in December:
4.7mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is December (4.7mph).
Average humidity
Royal City, WA
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is July (37%).
Average rainfall
Royal City, WA
- Average rainfall in January:
0.87" - Average rainfall in February:
0.59" - Average rainfall in March:
0.67" - Average rainfall in April:
0.39" - Average rainfall in May:
0.71" - Average rainfall in June:
0.43"
- Average rainfall in July:
0.24" - Average rainfall in August:
0.2" - Average rainfall in September:
0.31" - Average rainfall in October:
0.59" - Average rainfall in November:
0.51" - Average rainfall in December:
0.87"
The wettest months (with the highest rainfall) are January and December (0.87").
The driest month (with the least rainfall) is August (0.2").
Average rainfall days
Royal City, WA
- Average rainfall days in January:
8.5 days - Average rainfall days in February:
7.6 days - Average rainfall days in March:
10.6 days - Average rainfall days in April:
8.8 days - Average rainfall days in May:
8.2 days - Average rainfall days in June:
5.5 days
- Average rainfall days in July:
3.8 days - Average rainfall days in August:
3.5 days - Average rainfall days in September:
4.1 days - Average rainfall days in October:
8.6 days - Average rainfall days in November:
9.3 days - Average rainfall days in December:
7.9 days
The month with the highest number of rainy days is March (10.6 days).
The month with the least rainy days is August (3.5 days).
Average snowfall
Royal City, WA
The month with the highest snowfall is December (3.43").
The months with the least snowfall are May, June, July, August and October (0").
Average snowfall days
Royal City, WA
- Average snowfall days in January:
6.3 days - Average snowfall days in February:
5 days - Average snowfall days in March:
2.1 days - Average snowfall days in April:
0.4 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:
0.1 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
1.8 days - Average snowfall days in December:
6.5 days
The month with the highest number of snowfall days is December (6.5 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight / Average sunshine
Royal City, WA
- Average daylight in January:
9h and 0min - Average daylight in February:
10h and 18min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 36min - Average daylight in May:
15h and 6min - Average daylight in June:
15h and 48min
- Average daylight in July:
15h and 24min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 24min - Average daylight in December:
8h and 36min
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 54min - Average sunshine in February:
5h and 30min - Average sunshine in March:
7h and 48min - Average sunshine in April:
10h and 18min - Average sunshine in May:
11h and 0min - Average sunshine in June:
11h and 30min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 48min - Average sunshine in October:
6h and 48min - Average sunshine in November:
6h and 6min - Average sunshine in December:
5h and 6min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days
Royal City, WA
- Average sunshine days in January:
18 days - Average sunshine days in February:
16 days - Average sunshine days in March:
17.1 days - Average sunshine days in April:
19 days - Average sunshine days in May:
20.9 days - Average sunshine days in June:
23 days
- Average sunshine days in July:
25.8 days - Average sunshine days in August:
25.8 days - Average sunshine days in September:
24.3 days - Average sunshine days in October:
20.9 days - Average sunshine days in November:
17.9 days - Average sunshine days in December:
18.1 days
The months with the most sunshine days are July and August (25.8 days).
The month with the least sunshine days is February (16 days).
Average UV index
Royal City, 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
Royal City, WA
The month with the most cloud cover is January (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility
Royal City, WA
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
