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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, is an icy winter month in Altamont, Oregon, with an average temperature varying between 25.7°F (-3.5°C) and 38.7°F (3.7°C). January reports an average high-temperature of a still cold 38.7°F (3.7°C), slightly varied from December's 36.9°F (2.7°C). Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Altamont, Oregon, with an average temperature varying between 26.8°F (-2.9°C) and 40.5°F (4.7°C). Altamont's shift from January to February is accompanied by an average high-temperature of a still wintry 40.5°F (4.7°C), a slight deviation from 38.7°F (3.7°C). Weather in February »
Weather in March
March, the first month of the spring in Altamont, is a frosty month, with an average temperature ranging between max 44.6°F (7°C) and min 29.7°F (-1.3°C). A minor adjustment in Altamont's average high-temperature is noted with the start of March, touching a chilly 44.6°F (7°C) from February's 40.5°F (4.7°C). Weather in March »
Weather in April
April in Altamont, Oregon, is a fresh spring month, with an average temperature fluctuating between 32.9°F (0.5°C) and 52.5°F (11.4°C). April's arrival coincides with a marginal rise in the average high-temperature, moving from March's chilly 44.6°F (7°C) to a fresh 52.5°F (11.4°C). Weather in April »
Weather in May
The last month of the spring, May, is a refreshing month in Altamont, Oregon, with temperature in the range of an average high of 61.7°F (16.5°C) and an average low of 37.9°F (3.3°C). As May begins, there is an increase in the average high-temperature, moving from a fresh 52.5°F (11.4°C) in April to a comfortable 61.7°F (16.5°C). Weather in May »
Weather in June
June, the first month of the summer in Altamont, is an agreeable month, with temperature in the range of an average high of 70.5°F (21.4°C) and an average low of 43.2°F (6.2°C). As June arrives, Altamont's weather shows a minor increase in high-temperatures, edging from May's refreshing 61.7°F (16.5°C) to a pleasant 70.5°F (21.4°C). Weather in June »
Weather in July
July is a moderately hot summer month in Altamont, Oregon, with an average temperature fluctuating between 48.6°F (9.2°C) and 82°F (27.8°C). In Altamont, July records the highest average temperatures, peaking at 82°F (27.8°C) and reaching a low of 48.6°F (9.2°C). July's heat index is calculated to be 82.4°F (28°C). Weather in July »
Weather in August
August, the last month of the summer in Altamont, is another warm month, with an average temperature fluctuating between 48.4°F (9.1°C) and 80.8°F (27.1°C). Altamont experiences a transition to a still moderately hot 80.8°F (27.1°C) in average high-temperatures with the arrival of August, not greatly differing from July's 82°F (27.8°C). Weather in August »
Weather in September
The first month of the autumn, September, is also an agreeable month in Altamont, Oregon, with an average temperature fluctuating between 72.7°F (22.6°C) and 43.7°F (6.5°C). Altamont's progression into September involves a gentle drop in the average high-temperature, from a moderately hot 80.8°F (27.1°C) in August to an agreeable 72.7°F (22.6°C). Weather in September »
Weather in October
October, the same as September, in Altamont, Oregon, is another mild autumn month, with an average temperature ranging between min 36.5°F (2.5°C) and max 59.2°F (15.1°C). The average high-temperature drops in October, from September's agreeable 72.7°F (22.6°C) to a refreshing 59.2°F (15.1°C). Weather in October »
Weather in November
November, the last month of the autumn in Altamont, is also a frosty month, with temperature in the range of an average high of 46°F (7.8°C) and an average low of 29.7°F (-1.3°C). Onset of November witnesses a reduction in the average high-temperature, falling from a refreshing 59.2°F (15.1°C) in October to a frosty 46°F (7.8°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Altamont, Oregon, with an average temperature varying between 36.9°F (2.7°C) and 25.2°F (-3.8°C). December, on average, is the coldest month, registering a high temperature of 36.9°F (2.7°C) and a low of 25.2°F (-3.8°C). Weather in December »
Updated: Aug 11, 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
What is the most humid month?
With an average relative humidity of 84%, January is the most humid month.
How many days does it rain?
Throughout the year, in Altamont, there are 100.4 rainfall days, and 13.15" (334mm) of precipitation is accumulated.
When does it snow?
January through June, September through December are months with snowfall.
How many days does it snow?
Throughout the year, there are 70.5 snowfall days, and 42.52" (1080mm) of snow is accumulated.
What is the month with the least sunshine?
With an average of 5.3h of sunshine, January has the least sunshine of the year.
When is the lowest UV index?
February is the month with the lowest UV index, with an average maximum UV index of 1.
When is Daylight Saving Time (DST) in Altamont?
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 are the longest days?
June has the longest days of the year, with an average of 15h and 12min of daylight.
What month is the hottest?
Altamont's temperature records reveal July as the warmest month, marked by average highs of 82°F (27.8°C) and lows of 48.6°F (9.2°C).
What is the driest month?
The month with the least rainfall is July, when the rain falls for 4.3 days and typically collects 0.2" (5mm) of precipitation.
When it does not snow?
In Altamont, snow does not fall in July and August.
What month has the most sunshine?
With an average of 12.1h of sunshine, July has the most sunshine of the year.
What is the month with the highest UV index?
The month with the highest UV index is July, with an average maximum UV index of 6.
What is the least humid month?
August is the least humid month, with an average relative humidity of 49%.
What are the coldest months?
December, with average temperatures reaching a high of 36.9°F (2.7°C) and a low of 25.2°F (-3.8°C), is the coldest month in Altamont.
What is the rainiest month?
December is the month with the most rainfall. Rain falls for 8.4 days and accumulates 2.09" (53mm) of precipitation.
What is the snowiest month?
The month with the most snowfall is December, when snow falls for 13.5 days and typically aggregates up to 10.63" (270mm) of snow.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 12min of daylight.
Average temperature
Altamont, OR
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is December (36.9°F).
The month with the highest average low temperature is July (48.6°F).
The coldest month (with the lowest average low temperature) is December (25.2°F).
Average pressure
Altamont, OR
- Average pressure in January:
30.18"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
30.04"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.97"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.16"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed
Altamont, OR
- Average wind speed in January:
5.3mph - Average wind speed in February:
5.7mph - Average wind speed in March:
6.3mph - Average wind speed in April:
6.3mph - Average wind speed in May:
5.9mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
5.1mph - Average wind speed in August:
5mph - Average wind speed in September:
5mph - Average wind speed in October:
5.1mph - Average wind speed in November:
5.5mph - Average wind speed in December:
5.3mph
The windiest months (with the highest average wind speed) are March and April (6.3mph).
The calmest months (with the lowest average wind speed) are August and September (5mph).
Average humidity
Altamont, OR
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (49%).
Average rainfall
Altamont, OR
- Average rainfall in January:
1.77" - Average rainfall in February:
1.54" - Average rainfall in March:
1.77" - Average rainfall in April:
1.22" - Average rainfall in May:
1.34" - Average rainfall in June:
0.59"
The wettest month (with the highest rainfall) is December (2.09").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days
Altamont, OR
- Average rainfall days in January:
8.8 days - Average rainfall days in February:
9.4 days - Average rainfall days in March:
13 days - Average rainfall days in April:
13.1 days - Average rainfall days in May:
12 days - Average rainfall days in June:
7.3 days
- Average rainfall days in July:
4.3 days - Average rainfall days in August:
3.6 days - Average rainfall days in September:
4.1 days - Average rainfall days in October:
8 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
8.4 days
The month with the highest number of rainy days is April (13.1 days).
The month with the least rainy days is August (3.6 days).
Average snowfall
Altamont, OR
- Average snowfall in January:
8.78" - Average snowfall in February:
8.07" - Average snowfall in March:
6.97" - Average snowfall in April:
2.72" - Average snowfall in May:
0.55" - Average snowfall in June:
0.08"
The month with the highest snowfall is December (10.63").
The months with the least snowfall are July and August (0").
Average snowfall days
Altamont, OR
- Average snowfall days in January:
12.3 days - Average snowfall days in February:
12.1 days - Average snowfall days in March:
12.9 days - Average snowfall days in April:
7.6 days - Average snowfall days in May:
2.2 days - Average snowfall days in June:
0.4 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:
1.4 days - Average snowfall days in November:
7.9 days - Average snowfall days in December:
13.5 days
The month with the highest number of snowfall days is December (13.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Altamont, OR
- Average daylight in January:
9h and 3min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
5h and 2min - Average sunshine in February:
5h and 5min - Average sunshine in March:
7h and 5min - Average sunshine in April:
10h and 1min - Average sunshine in May:
10h and 5min - Average sunshine in June:
11h and 4min
- Average sunshine in July:
12h and 1min - Average sunshine in August:
11h and 5min - Average sunshine in September:
11h and 0min - Average sunshine in October:
7h and 1min - Average sunshine in November:
6h and 3min - Average sunshine in December:
5h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days
Altamont, OR
- Average sunshine days in January:
14.9 days - Average sunshine days in February:
11.9 days - Average sunshine days in March:
10.6 days - Average sunshine days in April:
12.5 days - Average sunshine days in May:
17.4 days - Average sunshine days in June:
19.9 days
- Average sunshine days in July:
23.5 days - Average sunshine days in August:
24.9 days - Average sunshine days in September:
23.7 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
16.2 days - Average sunshine days in December:
13.6 days
The month with the most sunshine days is August (24.9 days).
The month with the least sunshine days is March (10.6 days).
Average UV index
Altamont, OR
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover
Altamont, OR
The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility
Altamont, OR
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Altamont, Oregon, USA
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