Climate and monthly weather forecastWaterville, WA
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Waterville, Washington, with an average temperature fluctuating between 30.9°F (-0.6°C) and 19°F (-7.2°C). The transition into January marks the average high-temperature at a still subzero cold 30.9°F (-0.6°C), differing minimally from December's 30.2°F (-1°C). Weather in January »Weather in February
The last month of the winter, February, is a wintry month in Waterville, Washington, with temperature in the range of an average high of 34.2°F (1.2°C) and an average low of 20.8°F (-6.2°C). The onset of February brings with it an average high-temperature of a cold 34.2°F (1.2°C), showing a negligible variation from the month before. Weather in February »Weather in March
March, the first month of the spring in Waterville, is a chilly month, with an average temperature fluctuating between 43.2°F (6.2°C) and 28.2°F (-2.1°C). March sees a rise in the average high-temperature, climbing from a cold 34.2°F (1.2°C) in February to a chilly 43.2°F (6.2°C). Weather in March »Weather in April
April in Waterville, Washington, is a fresh spring month, with an average temperature varying between 54.3°F (12.4°C) and 34.9°F (1.6°C). The shift into April is characterized by a rise in the average high-temperature, transitioning from March's frosty 43.2°F (6.2°C) to a cool 54.3°F (12.4°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Waterville, Washington, with an average temperature ranging between max 65.3°F (18.5°C) and min 43.2°F (6.2°C). With the onset of May, Waterville experiences a temperature shift, with the average high-temperature moving from a cool 54.3°F (12.4°C) in April to a refreshing 65.3°F (18.5°C). Weather in May »Weather in June
The first month of the summer, June, is an agreeable month in Waterville, Washington, with an average temperature fluctuating between 72.1°F (22.3°C) and 48°F (8.9°C). A minor escalation in the average high-temperature is seen with the onset of June, moving from an enjoyable 65.3°F (18.5°C) in May to an agreeable 72.1°F (22.3°C). Weather in June »Weather in July
July is a moderately hot summer month in Waterville, Washington, with an average temperature fluctuating between 55°F (12.8°C) and 82.2°F (27.9°C). July is the month when Waterville, Washington, experiences its warmest temperatures, averaging a high of 82.2°F (27.9°C) and a low of 55°F (12.8°C). The heat index for July is computed to be 82.4°F (28°C). Weather in July »Weather in August
August, the last month of the summer in Waterville, is also a moderately hot month, with temperature in the range of an average high of 81.9°F (27.7°C) and an average low of 55.8°F (13.2°C). The ushering in of August brings an average high-temperature of a still moderately hot 81.9°F (27.7°C), closely mirroring the 82.2°F (27.9°C) of July. Weather in August »Weather in September
September, the first month of the autumn in Waterville, is also an agreeable month, with an average temperature ranging between min 49.1°F (9.5°C) and max 70.5°F (21.4°C). September suggests a modest reduction in the average high-temperature, shifting from a warm 81.9°F (27.7°C) in August to a pleasant 70.5°F (21.4°C). Weather in September »Weather in October
October, like September, in Waterville, Washington, is another fresh autumn month, with temperature in the range of an average low of 38.1°F (3.4°C) and an average high of 54.5°F (12.5°C). The arrival of October brings a significant change in Waterville's weather, with average high-temperatures dropping from September's pleasant 70.5°F (21.4°C) to a cool 54.5°F (12.5°C). Weather in October »Weather in November
The last month of the autumn, November, is also an icy month in Waterville, Washington, with temperature in the range of an average low of 27.9°F (-2.3°C) and an average high of 40.1°F (4.5°C). Waterville's November weather is characterized by a distinct downswing in high-temperatures, falling from October's fresh 54.5°F (12.5°C) to an icy 40.1°F (4.5°C). Weather in November »Weather in December
December, the first month of the winter in Waterville, is still a freezing cold month, with temperature in the range of an average high of 30.2°F (-1°C) and an average low of 19°F (-7.2°C). The lowest temperatures are recorded in December, with averages reaching a high of 30.2°F (-1°C) and a low of 19°F (-7.2°C). Weather in December »Updated: Jul 20, 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
With an average relative humidity of 90%, January is the most humid month.
Throughout the year, there are 99.9 rainfall days, and 10.47" (266mm) of precipitation is accumulated.
January through April, September through December are months with snowfall.
Throughout the year, in Waterville, there are 48.7 snowfall days, and 28.62" (727mm) of snow is accumulated.
January has the least sunshine of the year, with an average of 4.1h of sunshine.
The months with the lowest UV index are January through March, October through 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 are months without snowfall.
The month with the longest days is June, with an average of 15h and 54min of daylight.
In Waterville, Washington, the average temperatures in July are the highest, with a peak at 82.2°F (27.9°C) and a low of 55°F (12.8°C).
July and August, with an average relative humidity of 43%, are the least humid months.
The month with the least rainfall is July, when the rain falls for 4.1 days and typically collects 0.16" (4mm) of precipitation.
The months with the most sunshine are July and August, with an average of 12h of sunshine.
With an average maximum UV index of 6, July is the month with the highest UV index in Waterville.
Waterville's coldest weather arrives in December, when temperatures average a high of 30.2°F (-1°C) and a low of 19°F (-7.2°C).
December is the month with the most rainfall. Rain falls for 7.5 days and accumulates 1.65" (42mm) of precipitation.
The month with the most snowfall is December, when snow falls for 11.9 days and typically aggregates up to 9.06" (230mm) of snow.
With an average of 8h and 30min of daylight, December has the shortest days of the year.
Average temperature
Waterville, WA
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is December (30.2°F).
The month with the highest average low temperature is August (55.8°F).
The coldest months (with the lowest average low temperature) are January and December (19°F).
Average pressure
Waterville, WA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
30"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.93"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed
Waterville, WA
- Average wind speed in January:
3.5mph - Average wind speed in February:
4mph - Average wind speed in March:
4.7mph - Average wind speed in April:
5.7mph - Average wind speed in May:
5.7mph - Average wind speed in June:
6.1mph
- Average wind speed in July:
6mph - Average wind speed in August:
5.8mph - Average wind speed in September:
5.3mph - Average wind speed in October:
4.5mph - Average wind speed in November:
4mph - Average wind speed in December:
3.5mph
The windiest month (with the highest average wind speed) is June (6.1mph).
The calmest months (with the lowest average wind speed) are January and December (3.5mph).
Average humidity
Waterville, WA
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are July and August (43%).
Average rainfall
Waterville, WA
- Average rainfall in January:
1.5" - Average rainfall in February:
0.91" - Average rainfall in March:
1.22" - Average rainfall in April:
0.63" - Average rainfall in May:
1.1" - Average rainfall in June:
0.55"
- Average rainfall in July:
0.16" - Average rainfall in August:
0.28" - Average rainfall in September:
0.55" - Average rainfall in October:
0.91" - Average rainfall in November:
1.02" - Average rainfall in December:
1.65"
The wettest month (with the highest rainfall) is December (1.65").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days
Waterville, WA
- Average rainfall days in January:
8.6 days - Average rainfall days in February:
8.4 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
10.4 days - Average rainfall days in May:
9.5 days - Average rainfall days in June:
6.4 days
- Average rainfall days in July:
4.1 days - Average rainfall days in August:
3.8 days - Average rainfall days in September:
6.7 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
11.2 days - Average rainfall days in December:
7.5 days
The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is August (3.8 days).
Average snowfall
Waterville, WA
The month with the highest snowfall is December (9.06").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days
Waterville, WA
- Average snowfall days in January:
12 days - Average snowfall days in February:
10.5 days - Average snowfall days in March:
6 days - Average snowfall days in April:
1.2 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:
0.3 days - Average snowfall days in October:
0.5 days - Average snowfall days in November:
6.3 days - Average snowfall days in December:
11.9 days
The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight / Average sunshine
Waterville, WA
- Average daylight in January:
9h and 0min - Average daylight in February:
10h and 18min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 42min - Average daylight in May:
15h and 12min - Average daylight in June:
15h and 54min
- Average daylight in July:
15h and 30min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 18min - Average daylight in December:
8h and 30min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in January:
4h and 6min - Average sunshine in February:
4h and 36min - Average sunshine in March:
7h and 12min - Average sunshine in April:
10h and 18min - Average sunshine in May:
10h and 54min - 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 42min - Average sunshine in October:
6h and 24min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 30min
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 6min).
Average sunshine days
Waterville, WA
- Average sunshine days in January:
14.4 days - Average sunshine days in February:
13.5 days - Average sunshine days in March:
13.2 days - Average sunshine days in April:
16.3 days - Average sunshine days in May:
18.2 days - Average sunshine days in June:
22 days
- Average sunshine days in July:
25.7 days - Average sunshine days in August:
24.8 days - Average sunshine days in September:
21.7 days - Average sunshine days in October:
19.2 days - Average sunshine days in November:
13.5 days - Average sunshine days in December:
15.2 days
The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is March (13.2 days).
Average UV index
Waterville, WA
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover
Waterville, WA
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility
Waterville, WA
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
