Climate and monthly weather forecastUnderwood, WA
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Underwood, Washington, with temperature in the range of an average low of 27.7°F (-2.4°C) and an average high of 37°F (2.8°C). With the advent of January, Underwood's high-temperatures adjust to a still icy 37°F (2.8°C), closely aligning with the preceding month. Weather in January »Weather in February
February, the last month of the winter in Underwood, is another cold month, with an average temperature ranging between max 39°F (3.9°C) and min 28.8°F (-1.8°C). The advent of February brings an average high-temperature of a still cold 39°F (3.9°C), exhibiting minor difference from the previous month. Weather in February »Weather in March
March, the first month of the spring in Underwood, is a chilly month, with temperature in the range of an average high of 44.2°F (6.8°C) and an average low of 30.6°F (-0.8°C). March brings a marginal elevation to a frosty 44.2°F (6.8°C) from February's 39°F (3.9°C) in Underwood's average high-temperatures. Weather in March »Weather in April
April is a cool spring month in Underwood, Washington, with an average temperature varying between 52.3°F (11.3°C) and 35.2°F (1.8°C). Underwood observes a slight uplift in the average high-temperature with the onset of April, adjusting from March's chilly 44.2°F (6.8°C) to a cool 52.3°F (11.3°C). Weather in April »Weather in May
May, the last month of the spring in Underwood, is a comfortable month, with temperature in the range of an average high of 62.4°F (16.9°C) and an average low of 40.8°F (4.9°C). Underwood's May weather brings a rise in high-temperatures, moving from a fresh 52.3°F (11.3°C) in April to a refreshing 62.4°F (16.9°C). Weather in May »Weather in June
June, the first month of the summer in Underwood, is an agreeable month, with an average temperature varying between 68.5°F (20.3°C) and 45.1°F (7.3°C). June's arrival brings a modest temperature shift, moving from a comfortable 62.4°F (16.9°C) in May to an agreeable 68.5°F (20.3°C). Weather in June »Weather in July
July in Underwood, Washington, is a warm summer month, with an average temperature fluctuating between 78.3°F (25.7°C) and 50.4°F (10.2°C). The average high-temperature increases in July, moving from an agreeable 68.5°F (20.3°C) in June to a warm 78.3°F (25.7°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Underwood, Washington, with an average temperature ranging between min 51.4°F (10.8°C) and max 78.4°F (25.8°C). Underwood's August weather, with an average high temperature of 78.4°F (25.8°C) and an average low temperature of 51.4°F (10.8°C), tends to be the warmest of the year. Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Underwood, Washington, with an average temperature fluctuating between 47.1°F (8.4°C) and 68.9°F (20.5°C). September's arrival comes with a decrease in the average high-temperature, moving from a moderately hot 78.4°F (25.8°C) in August to a pleasant 68.9°F (20.5°C). Weather in September »Weather in October
October, like September, is another refreshing autumn month in Underwood, Washington, with temperature in the range of an average low of 40.5°F (4.7°C) and an average high of 55.4°F (13°C). Underwood's average high-temperature decreases in October, falling from a pleasant 68.9°F (20.5°C) in September to a moderate 55.4°F (13°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Underwood, Washington, with an average temperature fluctuating between 32.9°F (0.5°C) and 43.7°F (6.5°C). With November's arrival, Underwood's weather changes as the average high-temperature falls from a refreshing 55.4°F (13°C) in October to a chilly 43.7°F (6.5°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Underwood, Washington, with temperature in the range of an average high of 36°F (2.2°C) and an average low of 27°F (-2.8°C). The coldest time of the year is December, with temperatures averaging a high of 36°F (2.2°C) and a low of 27°F (-2.8°C). Weather in December »Updated: Jun 21, 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
January is the month with the most rainfall. Rain falls for 17.7 days and accumulates 5.67" (144mm) of precipitation.
Throughout the year, there are 159.7 rainfall days, and 31.42" (798mm) of precipitation is accumulated.
Months with snowfall are January through March, November and December.
Throughout the year, there are 15.1 snowfall days, and 14.33" (364mm) of snow is accumulated.
January has the least sunshine of the year, with an average of 3.7h of sunshine.
January, February and November, with an average maximum UV index of 1, are months with the lowest UV index.
The months with the highest humidity are February and December, with an average relative humidity of 88%.
The month with the most snowfall in Underwood is February, when snow falls for 4 days and typically aggregates up to 4.76" (121mm) of snow.
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.
In Underwood, snow does not fall in April through October.
June has the longest days of the year, with an average of 15h and 42min of daylight.
With an average relative humidity of 59%, July is the least humid month.
The month with the least rainfall is July, when the rain falls for 4.3 days and typically collects 0.28" (7mm) of precipitation.
With an average of 11.7h of sunshine, July has the most sunshine of the year.
The month with the highest UV index is July, with an average maximum UV index of 6.
Underwood's warmest month, August, registers temperatures that range from a high of 78.4°F (25.8°C) to a low of 51.4°F (10.8°C).
December is the coldest month, with the temperature often reaching an average high of 36°F (2.2°C) and an average low of 27°F (-2.8°C).
December has the shortest days of the year, with an average of 8h and 42min of daylight.
Average temperature
Underwood, WA
The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (36°F).
The month with the highest average low temperature is August (51.4°F).
The coldest month (with the lowest average low temperature) is December (27°F).
Average pressure
Underwood, WA
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
30.04"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.99"Hg
- Average pressure in July:
30"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed
Underwood, WA
- Average wind speed in January:
5.3mph - Average wind speed in February:
5.5mph - Average wind speed in March:
5.3mph - Average wind speed in April:
6mph - Average wind speed in May:
5.7mph - Average wind speed in June:
6.1mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.4mph - Average wind speed in September:
5mph - Average wind speed in October:
4.8mph - Average wind speed in November:
5.3mph - Average wind speed in December:
5.2mph
The windiest month (with the highest average wind speed) is June (6.1mph).
The calmest month (with the lowest average wind speed) is October (4.8mph).
Average humidity
Underwood, WA
The months with the highest relative humidity are February and December (88%).
The month with the lowest relative humidity is July (59%).
Average rainfall
Underwood, WA
- Average rainfall in January:
5.67" - Average rainfall in February:
3.82" - Average rainfall in March:
3.58" - Average rainfall in April:
2.52" - Average rainfall in May:
1.69" - Average rainfall in June:
0.98"
- Average rainfall in July:
0.28" - Average rainfall in August:
0.39" - Average rainfall in September:
1.14" - Average rainfall in October:
2.99" - Average rainfall in November:
3.27" - Average rainfall in December:
5.08"
The wettest month (with the highest rainfall) is January (5.67").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days
Underwood, WA
- Average rainfall days in January:
17.7 days - Average rainfall days in February:
15.8 days - Average rainfall days in March:
20 days - Average rainfall days in April:
16.8 days - Average rainfall days in May:
12.8 days - Average rainfall days in June:
9.1 days
- Average rainfall days in July:
4.3 days - Average rainfall days in August:
4.2 days - Average rainfall days in September:
9.2 days - Average rainfall days in October:
14.2 days - Average rainfall days in November:
17.7 days - Average rainfall days in December:
17.9 days
The month with the highest number of rainy days is March (20 days).
The month with the least rainy days is August (4.2 days).
Average snowfall
Underwood, WA
The month with the highest snowfall is February (4.76").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Underwood, WA
- Average snowfall days in January:
3.4 days - Average snowfall days in February:
4 days - Average snowfall days in March:
2.8 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:
4.1 days
The month with the highest number of snowfall days is December (4.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Underwood, WA
- Average daylight in January:
9h and 12min - 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 42min - Average sunshine in February:
3h and 54min - Average sunshine in March:
5h and 30min - Average sunshine in April:
8h and 0min - Average sunshine in May:
9h and 48min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
11h and 42min - Average sunshine in August:
11h and 36min - Average sunshine in September:
9h and 54min - Average sunshine in October:
5h and 24min - Average sunshine in November:
4h and 42min - Average sunshine in December:
3h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Underwood, WA
- Average sunshine days in January:
10.2 days - Average sunshine days in February:
8.8 days - Average sunshine days in March:
8.4 days - Average sunshine days in April:
10.7 days - Average sunshine days in May:
15.6 days - Average sunshine days in June:
17.6 days
- Average sunshine days in July:
25.4 days - Average sunshine days in August:
24.4 days - Average sunshine days in September:
18.7 days - Average sunshine days in October:
15.5 days - Average sunshine days in November:
9.9 days - Average sunshine days in December:
9.8 days
The month with the most sunshine days is July (25.4 days).
The month with the least sunshine days is March (8.4 days).
Average UV index
Underwood, WA
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover
Underwood, WA
The months with the most cloud cover are January and February (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 17).
Average visibility
Underwood, WA
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (4mi).
