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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 Harper, Oregon, is an icy winter month, with an average temperature ranging between min 22.1°F (-5.5°C) and max 34.7°F (1.5°C). The average high-temperature for January is a still cold 34.7°F (1.5°C), closely aligning with the temperature of the preceding month. Weather in January »
Weather in February
The last month of the winter, February, is also a wintry month in Harper, Oregon, with temperature in the range of an average low of 28°F (-2.2°C) and an average high of 40.6°F (4.8°C). In February, the average high-temperature marginally rises from a wintry 34.7°F (1.5°C) in January to a still cold 40.6°F (4.8°C). Weather in February »
Weather in March
The first month of the spring, March, is a cool month in Harper, Oregon, with an average temperature varying between 35.2°F (1.8°C) and 51.1°F (10.6°C). March brings a temperature increase, with average high-temperatures moving from February's wintry 40.6°F (4.8°C) to a fresh 51.1°F (10.6°C). Weather in March »
Weather in April
April in Harper, Oregon, is a moderate spring month, with an average temperature varying between 39.6°F (4.2°C) and 59.5°F (15.3°C). The shift from March to April sees a slight increase in the average high-temperature, transitioning from a cool 51.1°F (10.6°C) to a mild 59.5°F (15.3°C). Weather in April »
Weather in May
May, the last month of the spring in Harper, is an agreeable month, with temperature in the range of an average high of 70°F (21.1°C) and an average low of 47.1°F (8.4°C). As May arrives, a rise in the average high-temperature is observed, moving from a mild 59.5°F (15.3°C) in April to a pleasant 70°F (21.1°C). Weather in May »
Weather in June
June, the first month of the summer in Harper, is a moderately hot month, with an average temperature varying between 55°F (12.8°C) and 79°F (26.1°C). June signals a shift in the average high-temperature, moving from May's agreeable 70°F (21.1°C) to a moderately hot 79°F (26.1°C). Weather in June »
Weather in July
July is a hot summer month in Harper, Oregon, with an average temperature ranging between min 63.3°F (17.4°C) and max 91°F (32.8°C). In Harper, the highest average temperatures are observed in July, with a high of 91°F (32.8°C) and a low of 63.3°F (17.4°C). Weather in July »
Weather in August
The last month of the summer, August, is another hot month in Harper, Oregon, with an average temperature varying between 63.5°F (17.5°C) and 89.4°F (31.9°C). With the advent of August, Harper's high-temperatures adjust to a still tropical 89.4°F (31.9°C), closely aligning with the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Harper, Oregon, with an average temperature fluctuating between 55.9°F (13.3°C) and 78.4°F (25.8°C). The onset of September results in a decrease in the average high-temperature, receding from a tropical 89.4°F (31.9°C) in August to a warm 78.4°F (25.8°C). Weather in September »
Weather in October
October, like September, in Harper, Oregon, is another enjoyable autumn month, with an average temperature varying between 60.8°F (16°C) and 43.7°F (6.5°C). With the onset of October, Harper's weather experiences a distinct temperature drop, moving from a warm 78.4°F (25.8°C) in September to a refreshing 60.8°F (16°C). Weather in October »
Weather in November
November, the last month of the autumn in Harper, is another chilly month, with an average temperature varying between 46.4°F (8°C) and 31.5°F (-0.3°C). A noticeable downshift in temperatures is seen as October gives way to November, with average highs moving from a comfortable 60.8°F (16°C) to a chilly 46.4°F (8°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Harper, Oregon, with an average temperature fluctuating between 34.3°F (1.3°C) and 22.1°F (-5.5°C). Harper experiences its lowest temperatures in December, with an average peak of 34.3°F (1.3°C) and a low of 22.1°F (-5.5°C). Weather in December »
[Resources]Frequently asked questions
What is the most humid month in Harper?
January is the most humid month in Harper, with an average relative humidity of 83%.
How many days does it rain in Harper?
In Harper, Oregon, during the entire year, the rain falls for 57 days and collects up to 2.99" (76mm) of precipitation.
When does it snow in Harper?
Months with snowfall are January through April, November and December.
How many days does it snow in Harper?
In Harper, Oregon, during the entire year, snow falls for 17.3 days and aggregates up to 4.21" (107mm) of snow.
What is the month with the lowest UV index in Harper?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the wettest month in Harper?
The months with the most rainfall in Harper, Oregon, are March and May, with an average 0.39" (10mm) of precipitation.
When is Daylight Saving Time (DST) in Harper?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.
When it does not snow in Harper?
May through October are months without snowfall in Harper.
When are the longest days in Harper?
June has the longest days of the year in Harper, Oregon, with an average of 15h and 24min of daylight.
What time of the year is the hottest in Harper?
Temperature records in Harper mark July as the warmest month, with highs averaging 91°F (32.8°C) and lows at 63.3°F (17.4°C).
What is the least humid month in Harper?
The months with the lowest humidity are July and August, with an average relative humidity of 28%.
What is the driest month in Harper?
The months with the least rainfall in Harper, Oregon, are July and August Rain falls for 2.6 days and accumulates 0.08" (2mm) of rain.
What month has the most sunshine in Harper?
The month with the most sunshine in Harper is July, with an average of 12.1h of sunshine.
When is the highest UV index in Harper?
The month with the highest UV index is July, with an average maximum UV index of 7.
What are the coldest months in Harper?
December is the coldest month of the year in Harper, Oregon, registering average temperatures as high as 34.3°F (1.3°C) and as low as 22.1°F (-5.5°C).
When does it snow the most in Harper?
The month with the most snowfall is December, when snow falls for 6.1 days and typically aggregates up to 1.77" (45mm) of snow.
What is the month with the shortest days in Harper?
The month with the shortest days in Harper is December, with an average of 9h and 0min of daylight.
What is the month with the least sunshine in Harper?
December has the least sunshine of the year in Harper, with an average of 5.2h of sunshine.
Average temperature
Harper, OR
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is December (34.3°F).
The month with the highest average low temperature is August (63.5°F).
The coldest months (with the lowest average low temperature) are January and December (22.1°F).
Average pressure
Harper, OR
- Average pressure in January:
30.24"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
30"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.2"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed
Harper, OR
- Average wind speed in January:
3.9mph - Average wind speed in February:
5.2mph - Average wind speed in March:
6.3mph - Average wind speed in April:
7.1mph - Average wind speed in May:
6.9mph - Average wind speed in June:
6.9mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6mph - Average wind speed in September:
5.8mph - Average wind speed in October:
5.2mph - Average wind speed in November:
4.8mph - Average wind speed in December:
4.3mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is January (3.9mph).
Average humidity
Harper, OR
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are July and August (28%).
Average rainfall
Harper, OR
- Average rainfall in January:
0.35" - Average rainfall in February:
0.31" - Average rainfall in March:
0.39" - Average rainfall in April:
0.24" - Average rainfall in May:
0.39" - Average rainfall in June:
0.31"
- Average rainfall in July:
0.08" - Average rainfall in August:
0.08" - Average rainfall in September:
0.12" - Average rainfall in October:
0.16" - Average rainfall in November:
0.2" - Average rainfall in December:
0.35"
The wettest months (with the highest rainfall) are March and May (0.39").
The driest months (with the least rainfall) are July and August (0.08").
Average rainfall days
Harper, OR
- Average rainfall days in January:
5.2 days - Average rainfall days in February:
5.8 days - Average rainfall days in March:
8.4 days - Average rainfall days in April:
7 days - Average rainfall days in May:
5.4 days - Average rainfall days in June:
4.4 days
- Average rainfall days in July:
2.6 days - Average rainfall days in August:
2.3 days - Average rainfall days in September:
2.8 days - Average rainfall days in October:
4 days - Average rainfall days in November:
3.9 days - Average rainfall days in December:
5.2 days
The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is August (2.3 days).
Average snowfall
Harper, OR
The month with the highest snowfall is December (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Harper, OR
- Average snowfall days in January:
4.2 days - Average snowfall days in February:
4 days - Average snowfall days in March:
1.2 days - Average snowfall days in April:
0.3 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:
1.5 days - Average snowfall days in December:
6.1 days
The month with the highest number of snowfall days is December (6.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Harper, 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 2min - Average sunshine in February:
7h and 2min - Average sunshine in March:
8h and 0min - Average sunshine in April:
9h and 3min - Average sunshine in May:
11h and 2min - Average sunshine in June:
11h and 4min
- Average sunshine in July:
12h and 1min - Average sunshine in August:
11h and 1min - Average sunshine in September:
9h and 4min - Average sunshine in October:
8h and 1min - Average sunshine in November:
6h and 4min - Average sunshine in December:
5h and 1min
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 12min).
Average sunshine days
Harper, OR
- Average sunshine days in January:
22.2 days - Average sunshine days in February:
20.2 days - Average sunshine days in March:
20.1 days - Average sunshine days in April:
21.6 days - Average sunshine days in May:
23.8 days - Average sunshine days in June:
23.1 days
- Average sunshine days in July:
26.8 days - Average sunshine days in August:
25.9 days - Average sunshine days in September:
26.5 days - Average sunshine days in October:
25.4 days - Average sunshine days in November:
24 days - Average sunshine days in December:
21.7 days
The month with the most sunshine days is July (26.8 days).
The month with the least sunshine days is March (20.1 days).
Average UV index
Harper, OR
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Harper, OR
The months with the most cloud cover are January and December (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 8).
Average visibility
Harper, OR
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Harper, Oregon, USA
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