Climate and monthly weather forecastChiwaukum, WA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Chiwaukum, Washington, is a freezing cold winter month, with an average temperature varying between 31.5°F (-0.3°C) and 18.9°F (-7.3°C). Chiwaukum experiences an average high-temperature of a still subzero cold 31.5°F (-0.3°C) in January, marking an insignificant shift from 30.6°F (-0.8°C) in December. Weather in January »Weather in February
February, the last month of the winter in Chiwaukum, is a cold month, with an average temperature varying between 33.3°F (0.7°C) and 19.9°F (-6.7°C). The beginning of February reveals an average high-temperature of a cold 33.3°F (0.7°C), showing minimal deviation from the previous month. Weather in February »Weather in March
The first month of the spring, March, is also an icy month in Chiwaukum, Washington, with temperature in the range of an average low of 24.3°F (-4.3°C) and an average high of 39.2°F (4°C). The shift from February to March sees a slight increase in the average high-temperature, transitioning from an icy 33.3°F (0.7°C) to a still wintry 39.2°F (4°C). Weather in March »Weather in April
April in Chiwaukum, Washington, is a chilly spring month, with an average temperature varying between 30°F (-1.1°C) and 47.8°F (8.8°C). Chiwaukum's transition into April brings a slight rise in the average high-temperature, moving from a wintry 39.2°F (4°C) in March to a frosty 47.8°F (8.8°C). Weather in April »Weather in May
The last month of the spring, May, is a mild month in Chiwaukum, Washington, with an average temperature ranging between min 37.9°F (3.3°C) and max 59.9°F (15.5°C). The arrival of May brings a temperature shift, with the average high-temperature escalating from a chilly 47.8°F (8.8°C) in April to a mild 59.9°F (15.5°C). Weather in May »Weather in June
June, the first month of the summer in Chiwaukum, is an enjoyable month, with an average temperature fluctuating between 66.6°F (19.2°C) and 42.4°F (5.8°C). Chiwaukum's transition into June is marked by a minor temperature shift, moving from a moderate 59.9°F (15.5°C) in May to an enjoyable 66.6°F (19.2°C). Weather in June »Weather in July
July is a moderately hot summer month in Chiwaukum, Washington, with an average temperature fluctuating between 77.2°F (25.1°C) and 48.9°F (9.4°C). Chiwaukum's transition into July brings a rise in the average high-temperature, moving from a comfortable 66.6°F (19.2°C) in June to a moderately hot 77.2°F (25.1°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Chiwaukum, Washington, with an average temperature varying between 49.6°F (9.8°C) and 77.5°F (25.3°C). In Chiwaukum, the highest average temperatures are observed in August, with a high of 77.5°F (25.3°C) and a low of 49.6°F (9.8°C). Weather in August »Weather in September
September, the first month of the autumn in Chiwaukum, is still a comfortable month, with temperature in the range of an average high of 66.4°F (19.1°C) and an average low of 43.2°F (6.2°C). Start of September brings a shift in the average high-temperature, falling from August's moderately hot 77.5°F (25.3°C) to a comfortable 66.4°F (19.1°C). Weather in September »Weather in October
October, like September, in Chiwaukum, Washington, is another fresh autumn month, with temperature in the range of an average high of 51.6°F (10.9°C) and an average low of 35.1°F (1.7°C). A clear decrease in the average high-temperature is observed during October, decreasing from an enjoyable 66.4°F (19.1°C) in September to a fresh 51.6°F (10.9°C). Weather in October »Weather in November
November, the last month of the autumn in Chiwaukum, is also an icy month, with an average temperature ranging between min 26.1°F (-3.3°C) and max 38.1°F (3.4°C). The beginning of November marks a decrease in the average high-temperature, transitioning from a fresh 51.6°F (10.9°C) in October to an icy 38.1°F (3.4°C). Weather in November »Weather in December
The first month of the winter, December, is also a subzero cold month in Chiwaukum, Washington, with an average temperature ranging between min 18.7°F (-7.4°C) and max 30.6°F (-0.8°C). With its high average temperature of 30.6°F (-0.8°C) and a low of 18.7°F (-7.4°C), December is regarded as the coldest month. Weather in December »Updated: Aug 6, 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 most humid month, with an average relative humidity of 92%.
January is the month with the most rainfall in Chiwaukum. Rain falls for 14.7 days and accumulates 4.33" (110mm) of precipitation.
Throughout the year, there are 159.9 rainfall days, and 25.63" (651mm) of precipitation is accumulated.
Months with snowfall are January through May, September through December.
January is the month with the most snowfall. Snow falls for 14.7 days and accumulates 16.73" (425mm) of snow.
In Chiwaukum, during the entire year, snow falls for 73.4 days and aggregates up to 57.99" (1473mm) of snow.
With an average of 4.1h of sunshine, January has the least sunshine of the year in Chiwaukum.
January and February, with an average maximum UV index of 1, are months with the lowest UV index.
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 Chiwaukum, snow does not fall in June through August.
With an average of 15h and 54min of daylight, June has the longest days of the year.
The months with the lowest humidity are July and August, with an average relative humidity of 56%.
The month with the least rainfall in Chiwaukum, Washington, is July, when the rain falls for 7.5 days and typically collects 0.43" (11mm) of precipitation.
The month with the highest UV index is July, with an average maximum UV index of 6.
August is Chiwaukum's warmest month, registering average high temperatures of 77.5°F (25.3°C) and lows of 49.6°F (9.8°C).
August has the most sunshine of the year, with an average of 11.9h of sunshine.
The month of December sees the average lowest temperatures, reaching 30.6°F (-0.8°C) at the peak and 18.7°F (-7.4°C) at the low.
The month with the shortest days is December, with an average of 8h and 30min of daylight.
Average temperature
Chiwaukum, WA
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (30.6°F).
The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is December (18.7°F).
Average pressure
Chiwaukum, WA
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
30.01"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.96"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.95"Hg).
Average wind speed
Chiwaukum, WA
- Average wind speed in January:
3.7mph - Average wind speed in February:
3.9mph - Average wind speed in March:
4.4mph - Average wind speed in April:
5mph - Average wind speed in May:
5mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.2mph - Average wind speed in September:
4.7mph - Average wind speed in October:
4.1mph - Average wind speed in November:
3.9mph - Average wind speed in December:
3.5mph
The windiest month (with the highest average wind speed) is June (5.7mph).
The calmest month (with the lowest average wind speed) is December (3.5mph).
Average humidity
Chiwaukum, WA
The month with the highest relative humidity is January (92%).
The months with the lowest relative humidity are July and August (56%).
Average rainfall
Chiwaukum, WA
- Average rainfall in January:
4.33" - Average rainfall in February:
2.91" - Average rainfall in March:
2.87" - Average rainfall in April:
1.65" - Average rainfall in May:
1.65" - Average rainfall in June:
1.06"
- Average rainfall in July:
0.43" - Average rainfall in August:
0.51" - Average rainfall in September:
1.06" - Average rainfall in October:
2.36" - Average rainfall in November:
2.91" - Average rainfall in December:
3.86"
The wettest month (with the highest rainfall) is January (4.33").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days
Chiwaukum, WA
- Average rainfall days in January:
14.7 days - Average rainfall days in February:
14 days - Average rainfall days in March:
18.2 days - Average rainfall days in April:
17.7 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
11.5 days
- Average rainfall days in July:
7.5 days - Average rainfall days in August:
6.3 days - Average rainfall days in September:
10.3 days - Average rainfall days in October:
14.7 days - Average rainfall days in November:
16.7 days - Average rainfall days in December:
13 days
The month with the highest number of rainy days is March (18.2 days).
The month with the least rainy days is August (6.3 days).
Average snowfall
Chiwaukum, WA
- Average snowfall in January:
16.73" - Average snowfall in February:
11.18" - Average snowfall in March:
7.8" - Average snowfall in April:
1.54" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is January (16.73").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Chiwaukum, WA
- Average snowfall days in January:
14.7 days - Average snowfall days in February:
14.7 days - Average snowfall days in March:
11.8 days - Average snowfall days in April:
5.2 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:
0.2 days - Average snowfall days in October:
1 days - Average snowfall days in November:
8.5 days - Average snowfall days in December:
17 days
The month with the highest number of snowfall days is December (17 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Chiwaukum, WA
- Average daylight in January:
8h and 54min - 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 18min - Average sunshine in March:
6h and 42min - Average sunshine in April:
9h and 48min - Average sunshine in May:
10h and 42min - Average sunshine in June:
11h and 30min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
11h and 54min - Average sunshine in September:
10h and 30min - Average sunshine in October:
6h and 18min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 24min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Chiwaukum, WA
- Average sunshine days in January:
9.3 days - Average sunshine days in February:
6.8 days - Average sunshine days in March:
7.1 days - Average sunshine days in April:
8.5 days - Average sunshine days in May:
12.5 days - Average sunshine days in June:
14.1 days
- Average sunshine days in July:
21 days - Average sunshine days in August:
21.9 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
13.7 days - Average sunshine days in November:
8.5 days - Average sunshine days in December:
8.9 days
The month with the most sunshine days is August (21.9 days).
The month with the least sunshine days is February (6.8 days).
Average UV index
Chiwaukum, WA
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover
Chiwaukum, WA
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility
Chiwaukum, 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, March, November and December (4mi).
