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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in West Slope, Oregon, is a frosty winter month, with temperature in the range of an average low of 35.1°F (1.7°C) and an average high of 46°F (7.8°C). January ushers in an average high-temperature of a still chilly 46°F (7.8°C), aligning closely with the preceding month. Weather in January »
Weather in February
The last month of the winter, February, is also a frosty month in West Slope, Oregon, with temperature in the range of an average low of 35.4°F (1.9°C) and an average high of 47.7°F (8.7°C). February's weather records an average high-temperature of a still frosty 47.7°F (8.7°C), showing little deviation from January. Weather in February »
Weather in March
The first month of the spring, March, is a fresh month in West Slope, Oregon, with an average temperature ranging between max 52.7°F (11.5°C) and min 38.1°F (3.4°C). In March, West Slope experiences a minor shift in meteorological conditions with average high-temperatures marked at a cool 52.7°F (11.5°C), closely mirroring the climate in February. Weather in March »
Weather in April
April in West Slope, Oregon, is a moderate spring month, with an average temperature fluctuating between 58.6°F (14.8°C) and 39.9°F (4.4°C). With the onset of April, the average high-temperature subtly transitions from a cool 52.7°F (11.5°C) in March to a refreshing 58.6°F (14.8°C). Weather in April »
Weather in May
May, the last month of the spring in West Slope, is a refreshing month, with an average temperature varying between 67.6°F (19.8°C) and 44.6°F (7°C). As April transitions into May, West Slope sees a rise in the average high-temperature, moving from a refreshing 58.6°F (14.8°C) to an enjoyable 67.6°F (19.8°C). Weather in May »
Weather in June
The first month of the summer, June, is an agreeable month in West Slope, Oregon, with an average temperature fluctuating between 72.5°F (22.5°C) and 48.7°F (9.3°C). During June, West Slope observes a subtle ascent to an agreeable 72.5°F (22.5°C) from May's 67.6°F (19.8°C) in the average high-temperature. Weather in June »
Weather in July
July is a warm summer month in West Slope, Oregon, with temperature in the range of an average high of 81°F (27.2°C) and an average low of 53.4°F (11.9°C). With the onset of July, the average high-temperature subtly transitions from an agreeable 72.5°F (22.5°C) in June to a moderately hot 81°F (27.2°C). Weather in July »
Weather in August
August, the last month of the summer in West Slope, is another warm month, with an average temperature varying between 81.7°F (27.6°C) and 55.6°F (13.1°C). August is the warmest month of the year, registering average temperatures as high as 81.7°F (27.6°C) and as low as 55.6°F (13.1°C). The heat index in August is calculated to be 84.2°F (29°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in West Slope, Oregon, with an average temperature fluctuating between 52°F (11.1°C) and 74.3°F (23.5°C). The arrival of September corresponds with a light shift in temperature, down from a warm 81.7°F (27.6°C) in August to a still moderately hot 74.3°F (23.5°C). Weather in September »
Weather in October
October, like September, in West Slope, Oregon, is another enjoyable autumn month, with temperature in the range of an average high of 61.7°F (16.5°C) and an average low of 45.5°F (7.5°C). October indicates a shift in the average high-temperature, from September's warm 74.3°F (23.5°C) to a refreshing 61.7°F (16.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in West Slope, Oregon, with an average temperature varying between 50.9°F (10.5°C) and 39.9°F (4.4°C). November's arrival coincides with a drop in the average high-temperature, decreasing from October's enjoyable 61.7°F (16.5°C) to a cool 50.9°F (10.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in West Slope, Oregon, with an average temperature ranging between max 44.2°F (6.8°C) and min 34.7°F (1.5°C). December is the coldest month, with an average high-temperature of 44.2°F (6.8°C) and an average low-temperature of 34.7°F (1.5°C). Weather in December »
Updated: Jun 4, 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
How many days does it rain?
Throughout the year, there are 173.2 rainfall days, and 30.55" (776mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through March, November and December.
How many days does it snow?
Throughout the year, there are 6.1 snowfall days, and 4.37" (111mm) of snow is accumulated.
What is the month with the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What are the most humid months?
February and December, with an average relative humidity of 84%, are most humid months.
What is the snowiest month in West Slope?
The month with the most snowfall is February, when snow falls for 2.2 days and typically aggregates up to 1.61" (41mm) of snow.
What is the month with the least sunshine?
With an average of 3.9h of sunshine, February has the least sunshine of the year.
When is Daylight Saving Time (DST)?
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.
When it does not snow?
April through October are months without snowfall.
When are the longest days?
June has the longest days of the year, with an average of 15h and 36min of daylight.
What is the driest month?
July is the month with the least rainfall. Rain falls for 4.7 days and accumulates 0.31" (8mm) of precipitation.
What is the month with the highest UV index?
The month with the highest UV index in West Slope is July, with an average maximum UV index of 6.
What time of the year is the hottest?
In West Slope, August is the month with the highest recorded average temperatures, measuring a high of 81.7°F (27.6°C) and a low of 55.6°F (13.1°C).
What is the least humid month?
August is the least humid month, with an average relative humidity of 63%.
What month has the most sunshine?
August has the most sunshine of the year, with an average of 10.9h of sunshine.
What part of the year is the coldest?
December is West Slope's coldest month, registering average high temperatures of 44.2°F (6.8°C) and lows of 34.7°F (1.5°C).
What is the rainiest month?
The month with the most rainfall is December, when the rain falls for 18.7 days and typically aggregates up to 4.61" (117mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 8h and 48min of daylight.
Average temperature
West Slope, OR
The warmest month (with the highest average high temperature) is August (81.7°F).
The month with the lowest average high temperature is December (44.2°F).
The month with the highest average low temperature is August (55.6°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).
Average pressure
West Slope, OR
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
30.07"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
30.03"Hg
- Average pressure in July:
30.04"Hg - Average pressure in August:
30.01"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 months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed
West Slope, OR
- Average wind speed in January:
5.4mph - Average wind speed in February:
5.3mph - Average wind speed in March:
5.2mph - Average wind speed in April:
4.8mph - Average wind speed in May:
4.3mph - Average wind speed in June:
4.2mph
- Average wind speed in July:
4.3mph - Average wind speed in August:
4mph - Average wind speed in September:
4.1mph - Average wind speed in October:
4.7mph - Average wind speed in November:
5.2mph - Average wind speed in December:
5.2mph
The windiest month (with the highest average wind speed) is January (5.4mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity
West Slope, OR
The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is August (63%).
Average rainfall
West Slope, OR
- Average rainfall in January:
4.49" - Average rainfall in February:
3.35" - Average rainfall in March:
3.43" - Average rainfall in April:
2.87" - Average rainfall in May:
1.69" - Average rainfall in June:
1.18"
- Average rainfall in July:
0.31" - Average rainfall in August:
0.35" - Average rainfall in September:
1.54" - Average rainfall in October:
3.31" - Average rainfall in November:
3.43" - Average rainfall in December:
4.61"
The wettest month (with the highest rainfall) is December (4.61").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days
West Slope, OR
- Average rainfall days in January:
18.5 days - Average rainfall days in February:
16.9 days - Average rainfall days in March:
20.6 days - Average rainfall days in April:
18.7 days - Average rainfall days in May:
13.8 days - Average rainfall days in June:
11.5 days
- Average rainfall days in July:
4.7 days - Average rainfall days in August:
4.6 days - Average rainfall days in September:
10.5 days - Average rainfall days in October:
15.9 days - Average rainfall days in November:
18.8 days - Average rainfall days in December:
18.7 days
The month with the highest number of rainy days is March (20.6 days).
The month with the least rainy days is August (4.6 days).
Average snowfall
West Slope, OR
The month with the highest snowfall is February (1.61").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
West Slope, OR
- Average snowfall days in January:
1.3 days - Average snowfall days in February:
2.2 days - Average snowfall days in March:
1.5 days - Average snowfall days in April:
0 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:
0.3 days - Average snowfall days in December:
0.8 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
West Slope, OR
- Average daylight in January:
9h and 1min - Average daylight in February:
10h and 2min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 4min - Average daylight in May:
14h and 5min - Average daylight in June:
15h and 4min
- Average daylight in July:
15h and 2min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 3min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 3min - Average daylight in December:
8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
3h and 5min - Average sunshine in March:
5h and 4min - Average sunshine in April:
7h and 2min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 5min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 2min - Average sunshine in November:
4h and 4min - Average sunshine in December:
4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days
West Slope, OR
- Average sunshine days in January:
11 days - Average sunshine days in February:
8.9 days - Average sunshine days in March:
8.6 days - Average sunshine days in April:
9.3 days - Average sunshine days in May:
15.8 days - Average sunshine days in June:
15.9 days
- Average sunshine days in July:
24.9 days - Average sunshine days in August:
24.6 days - Average sunshine days in September:
17.9 days - Average sunshine days in October:
14 days - Average sunshine days in November:
10.4 days - Average sunshine days in December:
10.3 days
The month with the most sunshine days is July (24.9 days).
The month with the least sunshine days is March (8.6 days).
Average UV index
West Slope, OR
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
West Slope, OR
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility
West Slope, OR
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).
West Slope, Oregon, USA
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