Expand
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 Greenhorn, Oregon, is another cold winter month, with an average temperature varying between 22.1°F (-5.5°C) and 35.2°F (1.8°C). Greenhorn's average high-temperature marks a still wintry 35.2°F (1.8°C) with the advent of January, closely mirroring that of the preceding month. Weather in January »
Weather in February
February, the last month of the winter in Greenhorn, is also a wintry month, with an average temperature ranging between max 36.3°F (2.4°C) and min 22.5°F (-5.3°C). Greenhorn registers an average high-temperature of a still icy 36.3°F (2.4°C) at the commencement of February, closely related to the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Greenhorn, is still a cold month, with an average temperature varying between 42.6°F (5.9°C) and 26.2°F (-3.2°C). March's onset brings a minor rise in the average high-temperature, moving from 36.3°F (2.4°C) in February to a still icy 42.6°F (5.9°C). Weather in March »
Weather in April
April in Greenhorn, Oregon, is a cool spring month, with an average temperature fluctuating between 29.3°F (-1.5°C) and 50.4°F (10.2°C). April brings a slight rise in Greenhorn's average high-temperature, moving from a cold 42.6°F (5.9°C) in March to a cool 50.4°F (10.2°C). Weather in April »
Weather in May
The last month of the spring, May, is an enjoyable month in Greenhorn, Oregon, with temperature in the range of an average low of 36.1°F (2.3°C) and an average high of 61.3°F (16.3°C). Greenhorn's weather in May shows a rise in the average high-temperature, moving up from April's fresh 50.4°F (10.2°C) to an enjoyable 61.3°F (16.3°C). Weather in May »
Weather in June
The first month of the summer, June, is an agreeable month in Greenhorn, Oregon, with an average temperature ranging between max 69.4°F (20.8°C) and min 41.2°F (5.1°C). June's onset is marked by a subtle temperature increase, moving from an enjoyable 61.3°F (16.3°C) in May to a pleasant 69.4°F (20.8°C). Weather in June »
Weather in July
July is a warm summer month in Greenhorn, Oregon, with an average temperature ranging between max 81.7°F (27.6°C) and min 48.4°F (9.1°C). In Greenhorn, July is the warmest month, with temperatures averaging a high of 81.7°F (27.6°C) and a low of 48.4°F (9.1°C). July's average heat index is computed to be 82.4°F (28°C). Weather in July »
Weather in August
August, the last month of the summer in Greenhorn, is also a moderately hot month, with temperature in the range of an average high of 81°F (27.2°C) and an average low of 49.6°F (9.8°C). The arrival of August sees a recorded average high-temperature of a still moderately hot 81°F (27.2°C), showing little divergence from the previous month's conditions. Weather in August »
Weather in September
September, the first month of the autumn in Greenhorn, is still a pleasant month, with an average temperature ranging between min 44.2°F (6.8°C) and max 71.2°F (21.8°C). A moderate decline in the average high-temperature is seen during September, decreasing from a warm 81°F (27.2°C) in August to a pleasant 71.2°F (21.8°C). Weather in September »
Weather in October
October, like September, is another mild autumn month in Greenhorn, Oregon, with an average temperature ranging between min 35.6°F (2°C) and max 56.3°F (13.5°C). As October begins, there is a noticeable decrease in the average high-temperature, falling from an agreeable 71.2°F (21.8°C) in September to a moderate 56.3°F (13.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Greenhorn, is another chilly month, with temperature in the range of an average high of 43°F (6.1°C) and an average low of 27.5°F (-2.5°C). The onset of November introduces a moderate change in Greenhorn's weather, with average high-temperatures falling from October's mild 56.3°F (13.5°C) to a frosty 43°F (6.1°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Greenhorn, Oregon, with an average temperature fluctuating between 19.6°F (-6.9°C) and 33.4°F (0.8°C). The coldest month is December, with an average high-temperature of 33.4°F (0.8°C) and an average low-temperature of 19.6°F (-6.9°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 many days does it rain?
In Greenhorn, during the entire year, the rain falls for 127.7 days and collects up to 17.09" (434mm) of precipitation.
When does it snow?
Months with snowfall are January through May, September through December.
How many days does it snow?
In Greenhorn, during the entire year, snow falls for 62.5 days and aggregates up to 39.17" (995mm) of snow.
What are the months with the least sunshine?
January and February, with an average of 5.2h of sunshine, are months with the least sunshine.
When is the lowest UV index?
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the most humid month?
The most humid month is February, with an average relative humidity of 85%.
What is the wettest month?
February is the month with the most rainfall. Rain falls for 11.9 days and accumulates 2.28" (58mm) of precipitation.
When does it snow the most?
The month with the most snowfall is February, when snow falls for 12.5 days and typically aggregates up to 10.31" (262mm) 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 it does not snow?
June through August are months without snowfall.
When are the longest days?
The month with the longest days is June, with an average of 15h and 30min of daylight.
What month is the hottest?
July, noted for its average high-temperature of 81.7°F (27.6°C) and an average low-temperature of 48.4°F (9.1°C), is considered the warmest month in Greenhorn.
What is the driest month?
July is the month with the least rainfall. Rain falls for 3.8 days and accumulates 0.24" (6mm) of precipitation.
When is 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?
With an average relative humidity of 42%, August is the least humid month.
What month has the most sunshine?
The month with the most sunshine is August, with an average of 12.1h of sunshine.
What are the coldest months in Greenhorn?
December is the month that records the lowest temperatures, with averages ranging from a high of 33.4°F (0.8°C) to a low of 19.6°F (-6.9°C).
What is the month with the shortest days?
December has the shortest days of the year, with an average of 8h and 54min of daylight.
Average temperature
Greenhorn, OR
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (33.4°F).
The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is December (19.6°F).
Average pressure
Greenhorn, OR
- Average pressure in January:
30.22"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
30.01"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.93"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.19"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed
Greenhorn, OR
- Average wind speed in January:
6mph - Average wind speed in February:
5.7mph - Average wind speed in March:
6.1mph - Average wind speed in April:
6.2mph - Average wind speed in May:
5.7mph - Average wind speed in June:
5.6mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are August and September (5mph).
Average humidity
Greenhorn, OR
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is August (42%).
Average rainfall
Greenhorn, OR
- Average rainfall in January:
2.17" - Average rainfall in February:
2.28" - Average rainfall in March:
2.17" - Average rainfall in April:
1.85" - Average rainfall in May:
1.65" - Average rainfall in June:
0.94"
- Average rainfall in July:
0.24" - Average rainfall in August:
0.28" - Average rainfall in September:
0.55" - Average rainfall in October:
1.3" - Average rainfall in November:
1.42" - Average rainfall in December:
2.24"
The wettest month (with the highest rainfall) is February (2.28").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days
Greenhorn, OR
- Average rainfall days in January:
12.3 days - Average rainfall days in February:
11.9 days - Average rainfall days in March:
17.3 days - Average rainfall days in April:
14.9 days - Average rainfall days in May:
14.8 days - Average rainfall days in June:
8.9 days
- Average rainfall days in July:
3.8 days - Average rainfall days in August:
3.3 days - Average rainfall days in September:
6.6 days - Average rainfall days in October:
11.5 days - Average rainfall days in November:
11.3 days - Average rainfall days in December:
11.1 days
The month with the highest number of rainy days is March (17.3 days).
The month with the least rainy days is August (3.3 days).
Average snowfall
Greenhorn, OR
- Average snowfall in January:
8.11" - Average snowfall in February:
10.31" - Average snowfall in March:
5.83" - Average snowfall in April:
1.69" - Average snowfall in May:
0.28" - Average snowfall in June:
0"
The month with the highest snowfall is February (10.31").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Greenhorn, OR
- Average snowfall days in January:
11.7 days - Average snowfall days in February:
12.5 days - Average snowfall days in March:
9.6 days - Average snowfall days in April:
4.6 days - Average snowfall days in May:
1.3 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:
0.2 days - Average snowfall days in October:
1.3 days - Average snowfall days in November:
6.8 days - Average snowfall days in December:
14.5 days
The month with the highest number of snowfall days is December (14.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Greenhorn, 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 3min
- Average daylight in July:
15h and 1min - Average daylight in August:
14h and 0min - 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:
8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January:
5h and 1min - Average sunshine in February:
5h and 1min - Average sunshine in March:
7h and 2min - Average sunshine in April:
10h and 1min - Average sunshine in May:
10h and 5min - Average sunshine in June:
11h and 2min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
12h and 1min - Average sunshine in September:
10h and 4min - Average sunshine in October:
7h and 1min - Average sunshine in November:
6h and 1min - Average sunshine in December:
5h and 2min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).
Average sunshine days
Greenhorn, OR
- Average sunshine days in January:
13.5 days - Average sunshine days in February:
9 days - Average sunshine days in March:
9.2 days - Average sunshine days in April:
11.8 days - Average sunshine days in May:
13.8 days - Average sunshine days in June:
18.9 days
- Average sunshine days in July:
24.9 days - Average sunshine days in August:
24.8 days - Average sunshine days in September:
21.8 days - Average sunshine days in October:
18.1 days - Average sunshine days in November:
14.5 days - Average sunshine days in December:
11.4 days
The month with the most sunshine days is July (24.9 days).
The month with the least sunshine days is February (9 days).
Average UV index
Greenhorn, OR
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover
Greenhorn, OR
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility
Greenhorn, OR
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Greenhorn, Oregon, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location