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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, like December, in Three Rivers, Oregon, is an icy winter month, with an average temperature ranging between max 36.7°F (2.6°C) and min 25.2°F (-3.8°C). Transitioning into January, Three Rivers records an average high-temperature of a still icy 36.7°F (2.6°C), almost identical to December's 34.5°F (1.4°C). Weather in January »
Weather in February
The last month of the winter, February, is also an icy month in Three Rivers, Oregon, with an average temperature ranging between min 25.5°F (-3.6°C) and max 37°F (2.8°C). February's average high-temperature is a still cold 37°F (2.8°C), maintaining a close comparison with January's 36.7°F (2.6°C). Weather in February »
Weather in March
The first month of the spring, March, is still a cold month in Three Rivers, Oregon, with an average temperature varying between 42.1°F (5.6°C) and 28.6°F (-1.9°C). Welcoming March, Three Rivers notes an average high-temperature of a still cold 42.1°F (5.6°C), nearly consistent with February's 37°F (2.8°C). Weather in March »
Weather in April
April in Three Rivers, Oregon, is a frosty spring month, with temperature in the range of an average low of 32.5°F (0.3°C) and an average high of 49.6°F (9.8°C). April brings a slight increase in the average high-temperature, progressing from a wintry 42.1°F (5.6°C) in March to a frosty 49.6°F (9.8°C). Weather in April »
Weather in May
May, the last month of the spring in Three Rivers, is a refreshing month, with temperature in the range of an average high of 59.9°F (15.5°C) and an average low of 39.7°F (4.3°C). Three Rivers's transition into May is marked by a rise in the average high-temperature, advancing from a frosty 49.6°F (9.8°C) in April to a refreshing 59.9°F (15.5°C). Weather in May »
Weather in June
June, the first month of the summer in Three Rivers, is an enjoyable month, with an average temperature varying between 67.6°F (19.8°C) and 45.1°F (7.3°C). The onset of June marks a slight increase in the average high-temperature, moving from a refreshing 59.9°F (15.5°C) in May to an enjoyable 67.6°F (19.8°C). Weather in June »
Weather in July
July is a moderately hot summer month in Three Rivers, Oregon, with an average temperature varying between 79.3°F (26.3°C) and 51.4°F (10.8°C). Three Rivers's warmest weather arrives in July, when temperatures average a high of 79.3°F (26.3°C) and a low of 51.4°F (10.8°C). Weather in July »
Weather in August
August, the last month of the summer in Three Rivers, is another warm month, with an average temperature ranging between max 78.3°F (25.7°C) and min 51.8°F (11°C). August brings an average high-temperature of a still moderately hot 78.3°F (25.7°C), nearly identical to the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Three Rivers, Oregon, with an average temperature fluctuating between 69.8°F (21°C) and 45.5°F (7.5°C). September is marked by a subtle drop in average high-temperatures, transitioning from a warm 78.3°F (25.7°C) in August to an agreeable 69.8°F (21°C). Weather in September »
Weather in October
October, like September, in Three Rivers, Oregon, is a cool autumn month, with an average temperature fluctuating between 37.2°F (2.9°C) and 54.7°F (12.6°C). As September transitions into October, a clear downswing in temperatures is observed, with average highs retreating from an agreeable 69.8°F (21°C) to a fresh 54.7°F (12.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Three Rivers, is another chilly month, with an average temperature ranging between max 42.8°F (6°C) and min 30°F (-1.1°C). November brings a drop in Three Rivers's average high-temperature, falling from a cool 54.7°F (12.6°C) in October to a frosty 42.8°F (6°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Three Rivers, Oregon, with an average temperature varying between 34.5°F (1.4°C) and 23.7°F (-4.6°C). In Three Rivers, Oregon, December records the lowest average temperatures, peaking at 34.5°F (1.4°C) and reaching a low of 23.7°F (-4.6°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 much does it rain?
In Three Rivers, during the entire year, the rain falls for 42.7 days and collects up to 4.8" (122mm) of precipitation.
When does it snow?
January through June, September through December are months with snowfall.
How much does it snow?
Throughout the year, there are 40.2 snowfall days, and 19.09" (485mm) of snow is accumulated.
What are the months with the lowest UV index?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the wettest month?
The month with the most rainfall is February, when the rain falls for 2.3 days and typically aggregates up to 0.71" (18mm) of precipitation.
When does it snow the most?
February is the month with the most snowfall. Snow falls for 6.8 days and accumulates 4.61" (117mm) of snow.
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 are the longest days?
With an average of 15h and 24min of daylight, June has the longest days of the year.
What is the warmest month?
In Three Rivers, the peak average temperatures are observed in July, with a high of 79.3°F (26.3°C) and a low of 51.4°F (10.8°C).
What is the least humid month?
The least humid month is July, with an average relative humidity of 46%.
What is the driest month?
The month with the least rainfall is July, when the rain falls for 2.4 days and typically collects 0.08" (2mm) of precipitation.
When it does not snow?
July and August are months without snowfall.
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 coldest month?
December, recording an average high temperature of 34.5°F (1.4°C) and a low temperature of 23.7°F (-4.6°C), is Three Rivers's coldest month.
What is the most humid month?
The most humid month is December, with an average relative humidity of 82%.
What is the month with the shortest days?
With an average of 9h and 0min of daylight, December has the shortest days of the year.
What is the month with the least sunshine?
December has the least sunshine of the year, with an average of 5.5h of sunshine.
Average temperature
Three Rivers, OR
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (34.5°F).
The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (23.7°F).
Average pressure
Three Rivers, OR
- Average pressure in January:
30.18"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
30.04"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.99"Hg
- Average pressure in July:
29.99"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30.06"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 (29.97"Hg).
Average wind speed
Three Rivers, OR
- Average wind speed in January:
7.4mph - Average wind speed in February:
7.5mph - Average wind speed in March:
7.6mph - Average wind speed in April:
7.5mph - Average wind speed in May:
6.9mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.5mph - Average wind speed in September:
5.7mph - Average wind speed in October:
6.5mph - Average wind speed in November:
7.4mph - Average wind speed in December:
7.3mph
The windiest month (with the highest average wind speed) is March (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity
Three Rivers, OR
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is July (46%).
Average rainfall
Three Rivers, OR
- Average rainfall in January:
0.47" - Average rainfall in February:
0.71" - Average rainfall in March:
0.55" - Average rainfall in April:
0.47" - Average rainfall in May:
0.67" - Average rainfall in June:
0.31"
- Average rainfall in July:
0.08" - Average rainfall in August:
0.2" - Average rainfall in September:
0.24" - Average rainfall in October:
0.35" - Average rainfall in November:
0.28" - Average rainfall in December:
0.47"
The wettest month (with the highest rainfall) is February (0.71").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days
Three Rivers, OR
- Average rainfall days in January:
2.6 days - Average rainfall days in February:
2.3 days - Average rainfall days in March:
3.3 days - Average rainfall days in April:
4.5 days - Average rainfall days in May:
5.5 days - Average rainfall days in June:
5.4 days
- Average rainfall days in July:
2.4 days - Average rainfall days in August:
2.8 days - Average rainfall days in September:
3.5 days - Average rainfall days in October:
4.5 days - Average rainfall days in November:
2.6 days - Average rainfall days in December:
3.3 days
The month with the highest number of rainy days is May (5.5 days).
The month with the least rainy days is February (2.3 days).
Average snowfall
Three Rivers, OR
- Average snowfall in January:
1.81" - Average snowfall in February:
4.61" - Average snowfall in March:
3.58" - Average snowfall in April:
1.81" - Average snowfall in May:
2.64" - Average snowfall in June:
0.08"
The month with the highest snowfall is February (4.61").
The months with the least snowfall are July and August (0").
Average snowfall days
Three Rivers, OR
- Average snowfall days in January:
6.2 days - Average snowfall days in February:
6.8 days - Average snowfall days in March:
6 days - Average snowfall days in April:
4.5 days - Average snowfall days in May:
2 days - Average snowfall days in June:
0.9 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.6 days - Average snowfall days in October:
1.8 days - Average snowfall days in November:
4 days - Average snowfall days in December:
7.4 days
The month with the highest number of snowfall days is December (7.4 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Three Rivers, OR
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 3min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 3min - Average daylight in May:
14h and 5min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 1min - 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 4min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
5h and 4min - Average sunshine in February:
5h and 4min - Average sunshine in March:
7h and 5min - Average sunshine in April:
10h and 0min - Average sunshine in May:
10h and 5min - Average sunshine in June:
11h and 3min
- 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:
6h and 5min - Average sunshine in November:
6h and 2min - Average sunshine in December:
5h and 3min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days
Three Rivers, OR
- Average sunshine days in January:
24.8 days - Average sunshine days in February:
20.6 days - Average sunshine days in March:
24 days - Average sunshine days in April:
22.6 days - Average sunshine days in May:
23.3 days - Average sunshine days in June:
22.8 days
- Average sunshine days in July:
26.7 days - Average sunshine days in August:
25 days - Average sunshine days in September:
24.4 days - Average sunshine days in October:
24.5 days - Average sunshine days in November:
25.3 days - Average sunshine days in December:
23 days
The month with the most sunshine days is July (26.7 days).
The month with the least sunshine days is February (20.6 days).
Average UV index
Three Rivers, OR
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Three Rivers, OR
The month with the most cloud cover is December (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility
Three Rivers, OR
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Three Rivers, Oregon, USA
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