Climate and monthly weather forecastYamhill, OR
Climate and monthly weather forecast
Weather in January
January, like December, is another chilly winter month in Yamhill, Oregon, with an average temperature fluctuating between 34.9°F (1.6°C) and 45.3°F (7.4°C). The unfolding of January shows an average high-temperature of a still chilly 45.3°F (7.4°C), indicating a slight variance from December's 43.7°F (6.5°C). Weather in January »Weather in February
February, the last month of the winter in Yamhill, is also a frosty month, with temperature in the range of an average high of 47.1°F (8.4°C) and an average low of 34.9°F (1.6°C). With February's arrival, Yamhill's weather records an average high-temperature of a still frosty 47.1°F (8.4°C), marking little difference from January's 45.3°F (7.4°C). Weather in February »Weather in March
The first month of the spring, March, is a cool month in Yamhill, Oregon, with an average temperature ranging between max 51.3°F (10.7°C) and min 36.5°F (2.5°C). Yamhill records an average high-temperature of a cool 51.3°F (10.7°C) in March, closely mirroring the climate of the previous month. Weather in March »Weather in April
April in Yamhill, Oregon, is a mild spring month, with an average temperature ranging between min 38.7°F (3.7°C) and max 57.4°F (14.1°C). April signals a minor shift in the average high-temperature, moving from March's cool 51.3°F (10.7°C) to a refreshing 57.4°F (14.1°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Yamhill, Oregon, with an average temperature ranging between max 65.3°F (18.5°C) and min 43°F (6.1°C). May brings a slight increase in the average high-temperature, progressing from 57.4°F (14.1°C) in April to a still refreshing 65.3°F (18.5°C). Weather in May »Weather in June
June, the first month of the summer in Yamhill, is an agreeable month, with an average temperature fluctuating between 46.8°F (8.2°C) and 70.9°F (21.6°C). June marks a minor ascent in the average high-temperature, adjusting from May's refreshing 65.3°F (18.5°C) to an agreeable 70.9°F (21.6°C). Weather in June »Weather in July
July is a warm summer month in Yamhill, Oregon, with an average temperature varying between 78.6°F (25.9°C) and 51.6°F (10.9°C). In July, the meteorological conditions subtly change with the average high-temperature edging from an agreeable 70.9°F (21.6°C) in June to a moderately hot 78.6°F (25.9°C). Weather in July »Weather in August
August, the last month of the summer in Yamhill, is another warm month, with temperature in the range of an average high of 79.9°F (26.6°C) and an average low of 53.6°F (12°C). With average temperatures fluctuating between a high of 79.9°F (26.6°C) and a low of 53.6°F (12°C), August stands out as the warmest month. Weather in August »Weather in September
September, the first month of the autumn in Yamhill, is still a pleasant month, with an average temperature fluctuating between 72.5°F (22.5°C) and 50.2°F (10.1°C). The transition into September involves a small decrease in the average high-temperature, dipping slightly from a moderately hot 79.9°F (26.6°C) in August to an agreeable 72.5°F (22.5°C). Weather in September »Weather in October
October, like September, is another mild autumn month in Yamhill, Oregon, with temperature in the range of an average low of 44.4°F (6.9°C) and an average high of 60.6°F (15.9°C). In Yamhill, the average high-temperature in October decreases from a pleasant 72.5°F (22.5°C) in September to a moderate 60.6°F (15.9°C). Weather in October »Weather in November
November, the last month of the autumn in Yamhill, is also a fresh month, with an average temperature varying between 39°F (3.9°C) and 50.2°F (10.1°C). Setting in of November comes with a decrease in the average high-temperature, moving from a refreshing 60.6°F (15.9°C) in October to a fresh 50.2°F (10.1°C). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Yamhill, Oregon, with an average temperature varying between 43.7°F (6.5°C) and 33.6°F (0.9°C). The lowest temperatures are recorded in December, with averages reaching a high of 43.7°F (6.5°C) and a low of 33.6°F (0.9°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Yamhill, OR
The warmest month (with the highest average high temperature) is August (79.9°F).
The month with the lowest average high temperature is December (43.7°F).
The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (33.6°F).
Average pressure
Yamhill, OR
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
30.07"Hg - Average pressure in May:
30.04"Hg - Average pressure in June:
30.04"Hg
- Average pressure in July:
30.05"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:
30.09"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
Yamhill, OR
- Average wind speed in January:
4.8mph - Average wind speed in February:
4.9mph - Average wind speed in March:
5.1mph - Average wind speed in April:
4.8mph - Average wind speed in May:
4.3mph - Average wind speed in June:
4.1mph
The windiest month (with the highest average wind speed) is March (5.1mph).
The calmest months (with the lowest average wind speed) are August and September (4mph).
Average humidity
Yamhill, OR
The months with the highest relative humidity are January, February, November and December (87%).
The month with the lowest relative humidity is August (68%).
Average rainfall
Yamhill, OR
- Average rainfall in January:
3.82" - Average rainfall in February:
2.83" - Average rainfall in March:
3.11" - Average rainfall in April:
2.56" - Average rainfall in May:
1.77" - Average rainfall in June:
1.22"
- Average rainfall in July:
0.43" - Average rainfall in August:
0.39" - Average rainfall in September:
1.38" - Average rainfall in October:
2.68" - Average rainfall in November:
2.95" - Average rainfall in December:
3.9"
The wettest month (with the highest rainfall) is December (3.9").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days
Yamhill, OR
- Average rainfall days in January:
18.4 days - Average rainfall days in February:
18.5 days - Average rainfall days in March:
21.9 days - Average rainfall days in April:
20.3 days - Average rainfall days in May:
14.9 days - Average rainfall days in June:
12.8 days
- Average rainfall days in July:
6.3 days - Average rainfall days in August:
6.3 days - Average rainfall days in September:
11.6 days - Average rainfall days in October:
16.5 days - Average rainfall days in November:
19.2 days - Average rainfall days in December:
19.5 days
The month with the highest number of rainy days is March (21.9 days).
The months with the least rainy days are July and August (6.3 days).
Average snowfall
Yamhill, OR
The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Yamhill, OR
- Average snowfall days in January:
0.9 days - Average snowfall days in February:
2 days - Average snowfall days in March:
1.3 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:
0.2 days - Average snowfall days in December:
0.6 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Yamhill, OR
- 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:
14h and 54min - Average daylight in June:
15h and 36min
- Average daylight in July:
15h and 12min - Average daylight in August:
14h and 0min - 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 48min
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:
3h and 54min - Average sunshine in February:
3h and 48min - Average sunshine in March:
5h and 12min - Average sunshine in April:
7h and 0min - Average sunshine in May:
8h and 12min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 42min - Average sunshine in September:
8h and 54min - Average sunshine in October:
5h and 12min - Average sunshine in November:
4h and 24min - Average sunshine in December:
3h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days
Yamhill, OR
- Average sunshine days in January:
10.8 days - Average sunshine days in February:
7.6 days - Average sunshine days in March:
7.4 days - Average sunshine days in April:
7.7 days - Average sunshine days in May:
13.9 days - Average sunshine days in June:
14.1 days
- Average sunshine days in July:
22.3 days - Average sunshine days in August:
21.3 days - Average sunshine days in September:
15.9 days - Average sunshine days in October:
13 days - Average sunshine days in November:
8.8 days - Average sunshine days in December:
9.3 days
The month with the most sunshine days is July (22.3 days).
The month with the least sunshine days is March (7.4 days).
Average UV index
Yamhill, 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
Yamhill, OR
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility
Yamhill, OR
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, November and December (4mi).





