Climate and monthly weather forecastBonneville, OR
Climate and monthly weather forecast
Weather in January
January, like December, in Bonneville, Oregon, is a wintry winter month, with temperature in the range of an average low of 30°F (-1.1°C) and an average high of 39°F (3.9°C). As December turns into January, the average high-temperatures rest at a still icy 39°F (3.9°C), showing a minor variation from the prior month. Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Bonneville, Oregon, with temperature in the range of an average low of 29.7°F (-1.3°C) and an average high of 40.3°F (4.6°C). With the start of February, Bonneville measures an average high-temperature of a still icy 40.3°F (4.6°C), not significantly differing from January's 39°F (3.9°C). Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Bonneville, Oregon, with an average temperature fluctuating between 30.7°F (-0.7°C) and 44.8°F (7.1°C). March notes an average high-temperature of a frosty 44.8°F (7.1°C), subtly differing from February's 40.3°F (4.6°C). Weather in March »Weather in April
April in Bonneville, Oregon, is a cool spring month, with temperature in the range of an average high of 51.8°F (11°C) and an average low of 34.3°F (1.3°C). Bonneville in April denotes a subtle temperature transition, adjusting from an average high of a chilly 44.8°F (7.1°C) in March to a fresh 51.8°F (11°C). Weather in April »Weather in May
The last month of the spring, May, is an enjoyable month in Bonneville, Oregon, with temperature in the range of an average high of 61.3°F (16.3°C) and an average low of 39°F (3.9°C). In May, the average high-temperature increases from a cool 51.8°F (11°C) in April to an enjoyable 61.3°F (16.3°C). Weather in May »Weather in June
The first month of the summer, June, is still a refreshing month in Bonneville, Oregon, with an average temperature ranging between max 66.7°F (19.3°C) and min 43.3°F (6.3°C). June introduces a minor temperature shift, with average high-temperatures adjusting from May's 61.3°F (16.3°C) to a still refreshing 66.7°F (19.3°C). Weather in June »Weather in July
July in Bonneville, Oregon, is a moderately hot summer month, with an average temperature fluctuating between 75.7°F (24.3°C) and 47.1°F (8.4°C). July brings a rise in Bonneville's average high-temperature, moving from an enjoyable 66.7°F (19.3°C) in June to a warm 75.7°F (24.3°C). Weather in July »Weather in August
August, the last month of the summer in Bonneville, is also a moderately hot month, with an average temperature ranging between max 76.5°F (24.7°C) and min 48.7°F (9.3°C). August is the month that records the highest temperatures, with averages ranging from a high of 76.5°F (24.7°C) to a low of 48.7°F (9.3°C). Weather in August »Weather in September
The first month of the autumn, September, is also an enjoyable month in Bonneville, Oregon, with an average temperature varying between 45.7°F (7.6°C) and 67.5°F (19.7°C). Welcoming September, Bonneville observes a shift in the average high-temperature, falling from August's moderately hot 76.5°F (24.7°C) to a refreshing 67.5°F (19.7°C). Weather in September »Weather in October
October, the same as September, in Bonneville, Oregon, is another mild autumn month, with an average temperature varying between 55.9°F (13.3°C) and 40.6°F (4.8°C). As September transitions to October, the average high-temperature falls from a comfortable 67.5°F (19.7°C) to a mild 55.9°F (13.3°C). Weather in October »Weather in November
November, the last month of the autumn in Bonneville, is another chilly month, with temperature in the range of an average low of 34°F (1.1°C) and an average high of 44.6°F (7°C). As October transitions to November, the average high-temperature falls from a moderate 55.9°F (13.3°C) to a frosty 44.6°F (7°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Bonneville, Oregon, with temperature in the range of an average low of 28.2°F (-2.1°C) and an average high of 37.9°F (3.3°C). December tends to be the coldest month, with temperatures averaging a daily high of 37.9°F (3.3°C) and a low of 28.2°F (-2.1°C). Weather in December »Updated: Aug 14, 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 16.6 days and accumulates 5.35" (136mm) of precipitation.
Throughout the year, there are 158.4 rainfall days, and 30.31" (770mm) of precipitation is accumulated.
Months with snowfall are January through March, November and December.
The month with the most snowfall is January, when snow falls for 2.3 days and typically aggregates up to 3.62" (92mm) of snow.
In Bonneville, during the entire year, snow falls for 11.5 days and aggregates up to 10" (254mm) of snow.
With an average maximum UV index of 1, January is the month with the lowest UV index.
The most humid month is February, with an average relative humidity of 89%.
February has the least sunshine of the year, with an average of 3.2h of sunshine.
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.
April through October are months without snowfall.
June has the longest days of the year, with an average of 15h and 36min of daylight.
June and July, with an average maximum UV index of 5, are months with the highest UV index.
July and August, with an average relative humidity of 67%, are the least humid months.
The month with the least rainfall is July, when the rain falls for 4.4 days and typically collects 0.28" (7mm) of precipitation.
The months with the most sunshine are July and August, with an average of 10.9h of sunshine.
Bonneville's warmest month, August, registers temperatures that range from a high of 76.5°F (24.7°C) to a low of 48.7°F (9.3°C).
Temperature readings reach their annual highs in December, averaging 37.9°F (3.3°C) and a minimum average of 28.2°F (-2.1°C).
The month with the shortest days is December, with an average of 8h and 48min of daylight.
Average temperature
Bonneville, OR
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (37.9°F).
The month with the highest average low temperature is August (48.7°F).
The coldest month (with the lowest average low temperature) is December (28.2°F).
Average pressure
Bonneville, OR
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
30.05"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
30.01"Hg
- Average pressure in July:
30.01"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.07"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 (29.98"Hg).
Average wind speed
Bonneville, OR
- Average wind speed in January:
6.8mph - Average wind speed in February:
6.3mph - Average wind speed in March:
5.7mph - Average wind speed in April:
5.5mph - Average wind speed in May:
4.8mph - Average wind speed in June:
4.9mph
- Average wind speed in July:
4.5mph - Average wind speed in August:
4.2mph - Average wind speed in September:
4.5mph - Average wind speed in October:
5.2mph - Average wind speed in November:
6.2mph - Average wind speed in December:
6.3mph
The windiest month (with the highest average wind speed) is January (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity
Bonneville, OR
The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are July and August (67%).
Average rainfall
Bonneville, OR
- Average rainfall in January:
5.35" - Average rainfall in February:
3.9" - Average rainfall in March:
3.27" - Average rainfall in April:
2.52" - Average rainfall in May:
1.85" - Average rainfall in June:
1.06"
The wettest month (with the highest rainfall) is January (5.35").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days
Bonneville, OR
- Average rainfall days in January:
16.6 days - Average rainfall days in February:
16 days - Average rainfall days in March:
18.9 days - Average rainfall days in April:
16.6 days - Average rainfall days in May:
13.3 days - Average rainfall days in June:
10.8 days
- Average rainfall days in July:
4.4 days - Average rainfall days in August:
4.8 days - Average rainfall days in September:
8.4 days - Average rainfall days in October:
13.8 days - Average rainfall days in November:
16.3 days - Average rainfall days in December:
18.5 days
The month with the highest number of rainy days is March (18.9 days).
The month with the least rainy days is July (4.4 days).
Average snowfall
Bonneville, OR
The month with the highest snowfall is January (3.62").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Bonneville, OR
- Average snowfall days in January:
2.3 days - Average snowfall days in February:
3.8 days - Average snowfall days in March:
1.9 days - Average snowfall days in April:
0.2 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 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.8 days - Average snowfall days in December:
2.5 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Bonneville, 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 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 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 24min - Average sunshine in February:
3h and 12min - Average sunshine in March:
4h and 24min - Average sunshine in April:
6h and 6min - Average sunshine in May:
7h and 54min - Average sunshine in June:
8h and 48min
- Average sunshine in July:
10h and 54min - Average sunshine in August:
10h and 54min - Average sunshine in September:
8h and 42min - Average sunshine in October:
4h and 42min - Average sunshine in November:
3h and 42min - Average sunshine in December:
3h and 18min
The months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days
Bonneville, OR
- Average sunshine days in January:
12.5 days - Average sunshine days in February:
9.4 days - Average sunshine days in March:
9.9 days - Average sunshine days in April:
11.7 days - Average sunshine days in May:
15.4 days - Average sunshine days in June:
17.4 days
- Average sunshine days in July:
24.5 days - Average sunshine days in August:
23.9 days - Average sunshine days in September:
20.1 days - Average sunshine days in October:
16 days - Average sunshine days in November:
11.8 days - Average sunshine days in December:
11.5 days
The month with the most sunshine days is July (24.5 days).
The month with the least sunshine days is February (9.4 days).
Average UV index
Bonneville, OR
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Bonneville, OR
The month with the most cloud cover is February (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility
Bonneville, OR
The months with the highest visibility are May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
