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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 a wintry winter month in Petersburg, Oregon, with an average temperature fluctuating between 28.2°F (-2.1°C) and 38.1°F (3.4°C). January ushers in an average high-temperature of a still icy 38.1°F (3.4°C), aligning closely with the preceding month. Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Petersburg, Oregon, with temperature in the range of an average low of 29.5°F (-1.4°C) and an average high of 40.6°F (4.8°C). Petersburg indicates an average high-temperature of a still wintry 40.6°F (4.8°C) in February, showing minor variation from January's 38.1°F (3.4°C). Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Petersburg, Oregon, with temperature in the range of an average low of 32.2°F (0.1°C) and an average high of 47.3°F (8.5°C). The beginning of March marks a minor shift in the average high-temperature, moving from February's wintry 40.6°F (4.8°C) to a chilly 47.3°F (8.5°C). Weather in March »
Weather in April
April in Petersburg, Oregon, is a refreshing spring month, with an average temperature fluctuating between 55.8°F (13.2°C) and 37°F (2.8°C). With the onset of April, the average high-temperature subtly transitions from a chilly 47.3°F (8.5°C) in March to a refreshing 55.8°F (13.2°C). Weather in April »
Weather in May
The last month of the spring, May, is an enjoyable month in Petersburg, Oregon, with an average temperature fluctuating between 43.3°F (6.3°C) and 65.8°F (18.8°C). With the transition into May, Petersburg experiences an increase in average high-temperatures, moving up from a mild 55.8°F (13.2°C) in April to a comfortable 65.8°F (18.8°C). Weather in May »
Weather in June
The first month of the summer, June, is an agreeable month in Petersburg, Oregon, with an average temperature fluctuating between 48.7°F (9.3°C) and 72.1°F (22.3°C). The shift from May to June is marked by a slight increase in the average high-temperature, moving from a refreshing 65.8°F (18.8°C) to an agreeable 72.1°F (22.3°C). Weather in June »
Weather in July
July in Petersburg, Oregon, is a moderately hot summer month, with an average temperature varying between 81.7°F (27.6°C) and 54.7°F (12.6°C). Petersburg's July weather, with an average high temperature of 81.7°F (27.6°C) and an average low temperature of 54.7°F (12.6°C), tends to be the warmest of the year. In July, the heat index is estimated at 82.4°F (28°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Petersburg, Oregon, with an average temperature fluctuating between 81.3°F (27.4°C) and 55.8°F (13.2°C). Petersburg experiences a subtle adjustment in high-temperatures to a still moderately hot 81.3°F (27.4°C) with the onset of August, maintaining near parity with July's 81.7°F (27.6°C). Weather in August »
Weather in September
September, the first month of the autumn in Petersburg, is still a pleasant month, with an average temperature ranging between min 50.7°F (10.4°C) and max 71.6°F (22°C). During the transition into September, Petersburg observes a decrease in the average high-temperature, falling from a moderately hot 81.3°F (27.4°C) in August to a pleasant 71.6°F (22°C). Weather in September »
Weather in October
October, the same as September, in Petersburg, Oregon, is another refreshing autumn month, with an average temperature ranging between min 42.4°F (5.8°C) and max 57.9°F (14.4°C). The beginning of October involves a decrease in the average high-temperature, transitioning from an agreeable 71.6°F (22°C) in September to a mild 57.9°F (14.4°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Petersburg, Oregon, with temperature in the range of an average low of 34.3°F (1.3°C) and an average high of 45.5°F (7.5°C). Petersburg's November weather comes with a decrease in average high-temperatures, moving from a refreshing 57.9°F (14.4°C) in October to a frosty 45.5°F (7.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Petersburg, Oregon, with an average temperature ranging between min 27.1°F (-2.7°C) and max 37°F (2.8°C). With average high and low temperatures of 37°F (2.8°C) and 27.1°F (-2.7°C) respectively, December is Petersburg's coldest month. Weather in December »
Updated: Aug 1, 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?
The months with the highest humidity are January and December, with an average relative humidity of 85%.
What is the rainiest month?
The month with the most rainfall is January, when the rain falls for 16.2 days and typically aggregates up to 2.99" (76mm) of precipitation.
How many days does it rain?
Throughout the year, there are 133.5 rainfall days, and 16.93" (430mm) of precipitation is accumulated.
When does it snow?
January through March, November and December are months with snowfall in Petersburg.
How much does it snow in Petersburg?
In Petersburg, Oregon, during the entire year, snow falls for 14.3 days and aggregates up to 11.06" (281mm) of snow.
What is the month with the least sunshine?
With an average of 4.8h of sunshine, January has the least sunshine of the year.
When is the lowest UV index?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
When does it snow the most?
February is the month with the most snowfall. Snow falls for 4.3 days and accumulates 4.29" (109mm) of snow.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Petersburg, 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 Petersburg, snow does not fall in April through October.
When are the longest days?
June has the longest days of the year in Petersburg, with an average of 15h and 36min of daylight.
What month is the hottest?
In Petersburg, July registers the highest temperatures, averaging 81.7°F (27.6°C) at the peak and 54.7°F (12.6°C) at the lowest.
What are the least humid months?
The months with the lowest humidity are July and August, with an average relative humidity of 51%.
What is the driest month?
July is the month with the least rainfall. Rain falls for 3.3 days and accumulates 0.16" (4mm) of precipitation.
What month has the most sunshine?
July has the most sunshine of the year in Petersburg, with an average of 12h of sunshine.
What is the month with the highest UV index in Petersburg?
The month with the highest UV index is July, with an average maximum UV index of 6.
What is the coldest month?
December brings the lowest temperatures, with an average high of 37°F (2.8°C) and an average low of 27.1°F (-2.7°C).
What is the month with the shortest days?
December has the shortest days of the year, with an average of 8h and 48min of daylight.
Average temperature
Petersburg, 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 (37°F).
The month with the highest average low temperature is August (55.8°F).
The coldest month (with the lowest average low temperature) is December (27.1°F).
Average pressure
Petersburg, OR
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
30.03"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.98"Hg
- Average pressure in July:
29.98"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:
30.08"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed
Petersburg, OR
- Average wind speed in January:
4.8mph - Average wind speed in February:
5.2mph - Average wind speed in March:
5.5mph - Average wind speed in April:
6.5mph - Average wind speed in May:
6.5mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6mph - Average wind speed in September:
5.5mph - Average wind speed in October:
4.9mph - Average wind speed in November:
5mph - Average wind speed in December:
4.8mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest months (with the lowest average wind speed) are January and December (4.8mph).
Average humidity
Petersburg, OR
The months with the highest relative humidity are January and December (85%).
The months with the lowest relative humidity are July and August (51%).
Average rainfall
Petersburg, OR
- Average rainfall in January:
2.99" - Average rainfall in February:
2.13" - Average rainfall in March:
1.97" - Average rainfall in April:
1.26" - Average rainfall in May:
0.87" - Average rainfall in June:
0.51"
- Average rainfall in July:
0.16" - Average rainfall in August:
0.28" - Average rainfall in September:
0.59" - Average rainfall in October:
1.61" - Average rainfall in November:
1.69" - Average rainfall in December:
2.87"
The wettest month (with the highest rainfall) is January (2.99").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days
Petersburg, OR
- Average rainfall days in January:
16.2 days - Average rainfall days in February:
14 days - Average rainfall days in March:
16.3 days - Average rainfall days in April:
13.7 days - Average rainfall days in May:
9.8 days - Average rainfall days in June:
6.9 days
- Average rainfall days in July:
3.3 days - Average rainfall days in August:
3.2 days - Average rainfall days in September:
6.9 days - Average rainfall days in October:
13.1 days - Average rainfall days in November:
14.6 days - Average rainfall days in December:
15.5 days
The month with the highest number of rainy days is March (16.3 days).
The month with the least rainy days is August (3.2 days).
Average snowfall
Petersburg, OR
The month with the highest snowfall is February (4.29").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Petersburg, OR
- Average snowfall days in January:
3.5 days - Average snowfall days in February:
4.3 days - Average snowfall days in March:
1.6 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:
4.4 days
The month with the highest number of snowfall days is December (4.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Petersburg, 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:
14h and 5min - 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 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January:
4h and 5min - Average sunshine in February:
5h and 0min - Average sunshine in March:
7h and 1min - Average sunshine in April:
9h and 5min - 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:
11h and 5min - Average sunshine in September:
10h and 4min - Average sunshine in October:
6h and 2min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days
Petersburg, OR
- Average sunshine days in January:
11.6 days - Average sunshine days in February:
11.3 days - Average sunshine days in March:
10.6 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
18.4 days - Average sunshine days in June:
20.8 days
- Average sunshine days in July:
26.8 days - Average sunshine days in August:
26.3 days - Average sunshine days in September:
21.6 days - Average sunshine days in October:
15.9 days - Average sunshine days in November:
12 days - Average sunshine days in December:
12.1 days
The month with the most sunshine days is July (26.8 days).
The month with the least sunshine days is March (10.6 days).
Average UV index
Petersburg, OR
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Petersburg, OR
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility
Petersburg, 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).
Petersburg, Oregon, USA
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