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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 in Rainier, Oregon, is a chilly winter month, with an average temperature ranging between min 33.4°F (0.8°C) and max 44.2°F (6.8°C). January's advent denotes a minor fluctuation in the average high-temperature to a frosty 44.2°F (6.8°C) from December's 42.3°F (5.7°C). Weather in January »
Weather in February
February, the last month of the winter in Rainier, is another chilly month, with an average temperature fluctuating between 33.3°F (0.7°C) and 45.5°F (7.5°C). A minor adjustment in Rainier's average high-temperature is noted with the start of February, touching a still chilly 45.5°F (7.5°C) from January's 44.2°F (6.8°C). Weather in February »
Weather in March
March, the first month of the spring in Rainier, is a fresh month, with an average temperature ranging between min 34.7°F (1.5°C) and max 50°F (10°C). March's onset brings an average high-temperature of a fresh 50°F (10°C), showing a minute difference from February's 45.5°F (7.5°C). Weather in March »
Weather in April
April is a refreshing spring month in Rainier, Oregon, with an average temperature varying between 55.9°F (13.3°C) and 36.7°F (2.6°C). The beginning of April signals a minor rise in the average high-temperature, moving from a cool 50°F (10°C) in March to a refreshing 55.9°F (13.3°C). Weather in April »
Weather in May
May, the last month of the spring in Rainier, is an enjoyable month, with an average temperature ranging between max 64.8°F (18.2°C) and min 40.8°F (4.9°C). Observing a minor shift, the average high-temperature during May adjusts from April's mild 55.9°F (13.3°C) to a comfortable 64.8°F (18.2°C). Weather in May »
Weather in June
June, the first month of the summer in Rainier, is a pleasant month, with an average temperature ranging between max 69.4°F (20.8°C) and min 44.6°F (7°C). June observes an average high-temperature of an agreeable 69.4°F (20.8°C), marking an insignificant difference from May's 64.8°F (18.2°C). Weather in June »
Weather in July
July in Rainier, Oregon, is a moderately hot summer month, with temperature in the range of an average low of 48.9°F (9.4°C) and an average high of 76.8°F (24.9°C). The shift from June to July introduces a subtle increase in the average high-temperature, moving from a pleasant 69.4°F (20.8°C) to a warm 76.8°F (24.9°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Rainier, Oregon, with an average temperature fluctuating between 77.9°F (25.5°C) and 49.8°F (9.9°C). The warmest time of the year is August, with temperatures averaging a high of 77.9°F (25.5°C) and a low of 49.8°F (9.9°C). Weather in August »
Weather in September
September, the first month of the autumn in Rainier, is still a pleasant month, with an average temperature ranging between min 47.3°F (8.5°C) and max 70.7°F (21.5°C). In September, the average high-temperature marginally drops from a moderately hot 77.9°F (25.5°C) in August to an agreeable 70.7°F (21.5°C). Weather in September »
Weather in October
October, the same as September, in Rainier, Oregon, is another refreshing autumn month, with an average temperature ranging between max 59°F (15°C) and min 42.3°F (5.7°C). Arrival of October comes with a reduction in the average high-temperature, falling from an agreeable 70.7°F (21.5°C) in September to a mild 59°F (15°C). Weather in October »
Weather in November
November, the last month of the autumn in Rainier, is another chilly month, with an average temperature ranging between max 48.4°F (9.1°C) and min 37.6°F (3.1°C). The transition into November indicates a reduction in the average high-temperature, down to a frosty 48.4°F (9.1°C) from October's mild 59°F (15°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Rainier, Oregon, with an average temperature fluctuating between 32.7°F (0.4°C) and 42.3°F (5.7°C). With average temperatures fluctuating between a high of 42.3°F (5.7°C) and a low of 32.7°F (0.4°C), December stands out as the coldest month. Weather in December »
[Resources]Frequently asked questions
What is the most humid month in Rainier?
January, February, November and December, with an average relative humidity of 88%, are most humid months in Rainier.
What is the rainiest month in Rainier?
The month with the most rainfall in Rainier is January, when the rain falls for 18.7 days and typically aggregates up to 3.9" (99mm) of precipitation.
How many days does it rain in Rainier?
Throughout the year, in Rainier, Oregon, there are 175.5 rainfall days, and 25.83" (656mm) of precipitation is accumulated.
When does it snow in Rainier?
January through March, November and December are months with snowfall.
What is the snowiest month in Rainier?
The month with the most snowfall in Rainier, Oregon, is January, when snow falls for 1.7 days and typically aggregates up to 1.26" (32mm) of snow.
How much does it snow in Rainier?
Throughout the year, in Rainier, Oregon, there are 6.7 snowfall days, and 3.54" (90mm) of snow is accumulated.
What are the months with the least sunshine in Rainier?
The months with the least sunshine are January, February and December, with an average of 3.5h of sunshine.
When is Daylight Saving Time (DST) in Rainier?
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 in Rainier?
In Rainier, Oregon, snow does not fall in April through October.
When are the longest days in Rainier?
June has the longest days of the year, with an average of 15h and 42min of daylight.
When is the highest UV index in Rainier?
The months with the highest UV index in Rainier, Oregon, are June and July, with an average maximum UV index of 5.
What is the least humid month in Rainier?
July is the least humid month, with an average relative humidity of 72%.
What are the warmest months in Rainier?
The temperatures reach their highest averages in August, with highs of 77.9°F (25.5°C) and lows of 49.8°F (9.9°C).
What is the driest month in Rainier?
August is the month with the least rainfall. Rain falls for 6.3 days and accumulates 0.39" (10mm) of precipitation.
What month has the most sunshine in Rainier?
The month with the most sunshine in Rainier is August, with an average of 10.4h of sunshine.
When is the lowest UV index in Rainier?
With an average maximum UV index of 1, November is the month with the lowest UV index in Rainier.
What part of the year is the coldest in Rainier?
December, having an average high-temperature of 42.3°F (5.7°C) and an average low-temperature of 32.7°F (0.4°C), is the coldest month in Rainier.
What is the month with the shortest days in Rainier?
The month with the shortest days in Rainier, Oregon, is December, with an average of 8h and 42min of daylight.
Average temperature
Rainier, OR
The warmest month (with the highest average high temperature) is August (77.9°F).
The month with the lowest average high temperature is December (42.3°F).
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (32.7°F).
Average pressure
Rainier, OR
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
30.06"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:
30.04"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed
Rainier, OR
- Average wind speed in January:
4.8mph - Average wind speed in February:
4.5mph - Average wind speed in March:
4.7mph - Average wind speed in April:
4.4mph - Average wind speed in May:
4.2mph - Average wind speed in June:
4.1mph
- Average wind speed in July:
4.3mph - Average wind speed in August:
4mph - Average wind speed in September:
3.9mph - Average wind speed in October:
4.1mph - Average wind speed in November:
4.7mph - Average wind speed in December:
4.7mph
The windiest month (with the highest average wind speed) is January (4.8mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).
Average humidity
Rainier, OR
The months with the highest relative humidity are January, February, November and December (88%).
The month with the lowest relative humidity is July (72%).
Average rainfall
Rainier, OR
- Average rainfall in January:
3.9" - Average rainfall in February:
2.8" - Average rainfall in March:
2.83" - Average rainfall in April:
2.28" - Average rainfall in May:
1.61" - Average rainfall in June:
1.26"
- Average rainfall in July:
0.43" - Average rainfall in August:
0.39" - Average rainfall in September:
1.26" - Average rainfall in October:
2.83" - Average rainfall in November:
2.64" - Average rainfall in December:
3.58"
The wettest month (with the highest rainfall) is January (3.9").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days
Rainier, OR
- Average rainfall days in January:
18.7 days - Average rainfall days in February:
16.7 days - Average rainfall days in March:
20.3 days - Average rainfall days in April:
18.8 days - Average rainfall days in May:
13.9 days - Average rainfall days in June:
12 days
- Average rainfall days in July:
6.1 days - Average rainfall days in August:
6.3 days - Average rainfall days in September:
10.8 days - Average rainfall days in October:
15.9 days - Average rainfall days in November:
17.5 days - Average rainfall days in December:
18.5 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is July (6.1 days).
Average snowfall
Rainier, OR
The month with the highest snowfall is January (1.26").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Rainier, OR
- Average snowfall days in January:
1.7 days - Average snowfall days in February:
2.2 days - Average snowfall days in March:
1.4 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:
0.5 days - Average snowfall days in December:
0.9 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
Rainier, 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:
15h and 0min - Average daylight in June:
15h and 4min
- Average daylight in July:
15h and 2min - Average daylight in August:
14h and 1min - 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 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in January:
3h and 3min - Average sunshine in February:
3h and 3min - Average sunshine in March:
4h and 5min - Average sunshine in April:
6h and 2min - Average sunshine in May:
7h and 5min - Average sunshine in June:
8h and 3min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 2min - Average sunshine in October:
4h and 5min - Average sunshine in November:
3h and 4min - Average sunshine in December:
3h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 30min).
Average sunshine days
Rainier, OR
- Average sunshine days in January:
10.6 days - Average sunshine days in February:
9.1 days - Average sunshine days in March:
8.9 days - Average sunshine days in April:
9.3 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
15.4 days
- Average sunshine days in July:
22 days - Average sunshine days in August:
21.3 days - Average sunshine days in September:
17 days - Average sunshine days in October:
13.7 days - Average sunshine days in November:
10.5 days - Average sunshine days in December:
10.2 days
The month with the most sunshine days is July (22 days).
The month with the least sunshine days is March (8.9 days).
Average UV index
Rainier, OR
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover
Rainier, OR
The months with the most cloud cover are February and March (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility
Rainier, OR
The month with the highest visibility is August (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, September, October, November and December (4mi).
Rainier, Oregon, USA
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