Climate and monthly weather forecastProspect, OR
Climate and monthly weather forecast
Weather in January
January, like December, is a frosty winter month in Prospect, Oregon, with an average temperature ranging between max 44.6°F (7°C) and min 30.6°F (-0.8°C). The shift into January uncovers an average high-temperature of a still chilly 44.6°F (7°C), subtly different from the previous month. Weather in January »Weather in February
February, the last month of the winter in Prospect, is also a frosty month, with an average temperature ranging between min 30.2°F (-1°C) and max 45.1°F (7.3°C). In February, the average high-temperature registers at a still frosty 45.1°F (7.3°C), nearly identical to January's 44.6°F (7°C). Weather in February »Weather in March
March, the first month of the spring in Prospect, is also a frosty month, with an average temperature fluctuating between 48.7°F (9.3°C) and 31.5°F (-0.3°C). Entering March, Prospect's average high-temperature reads a still frosty 48.7°F (9.3°C), indicating a close resemblance to the previous month's climate. Weather in March »Weather in April
April is a cool spring month in Prospect, Oregon, with an average temperature fluctuating between 54.3°F (12.4°C) and 33.8°F (1°C). The start of April signals a slight increase in the average high-temperature, moving from a frosty 48.7°F (9.3°C) in March to a cool 54.3°F (12.4°C). Weather in April »Weather in May
May, the last month of the spring in Prospect, is a comfortable month, with an average temperature fluctuating between 63.1°F (17.3°C) and 38.1°F (3.4°C). May witnesses a subtle temperature ascent, adjusting from a cool 54.3°F (12.4°C) in April to a refreshing 63.1°F (17.3°C). Weather in May »Weather in June
The first month of the summer, June, is a pleasant month in Prospect, Oregon, with temperature in the range of an average high of 70.3°F (21.3°C) and an average low of 42.4°F (5.8°C). June's arrival signals a modest temperature shift, moving from an enjoyable 63.1°F (17.3°C) in May to a pleasant 70.3°F (21.3°C). Weather in June »Weather in July
July in Prospect, Oregon, is a warm summer month, with an average temperature ranging between max 81°F (27.2°C) and min 47.8°F (8.8°C). July's onset brings a rise in the average high-temperature, moving from an agreeable 70.3°F (21.3°C) in June to a warm 81°F (27.2°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Prospect, Oregon, with an average temperature varying between 82°F (27.8°C) and 48.6°F (9.2°C). August, marked by an average high-temperature of 82°F (27.8°C) and a low-temperature of 48.6°F (9.2°C), is the warmest month. For most parts of August, the heat index is appraised at 84.2°F (29°C). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Prospect, Oregon, with an average temperature varying between 44.6°F (7°C) and 74.5°F (23.6°C). The beginning of September subtly marks a decrease in the average high-temperature, transitioning from a moderately hot 82°F (27.8°C) in August to a still warm 74.5°F (23.6°C). Weather in September »Weather in October
October, like September, in Prospect, Oregon, is another comfortable autumn month, with an average temperature ranging between max 62.1°F (16.7°C) and min 38.8°F (3.8°C). Prospect's October weather comes with a decrease in average high-temperatures, moving from a warm 74.5°F (23.6°C) in September to a refreshing 62.1°F (16.7°C). Weather in October »Weather in November
The last month of the autumn, November, is also a fresh month in Prospect, Oregon, with an average temperature fluctuating between 33.6°F (0.9°C) and 50.7°F (10.4°C). In November, the average high-temperature decreases from an enjoyable 62.1°F (16.7°C) in October to a fresh 50.7°F (10.4°C). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in Prospect, Oregon, with temperature in the range of an average low of 28.6°F (-1.9°C) and an average high of 42.8°F (6°C). Prospect's coldest month, December, generally records average temperatures ranging from a high of 42.8°F (6°C) to a low of 28.6°F (-1.9°C). Weather in December »Updated: Jul 14, 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
January is the most humid month, with an average relative humidity of 84%.
In Prospect, during the entire year, the rain falls for 140 days and collects up to 23.78" (604mm) of precipitation.
Months with snowfall are January through May, November and December.
In Prospect, during the entire year, snow falls for 25 days and aggregates up to 21.77" (553mm) of snow.
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
February is the month with the most snowfall. Snow falls for 6.2 days and accumulates 6.77" (172mm) of snow.
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.
June through October are months without snowfall in Prospect.
The month with the longest days in Prospect is June, with an average of 15h and 18min of daylight.
July is the month with the least rainfall. Rain falls for 3.8 days and accumulates 0.24" (6mm) of precipitation.
With an average of 11.9h of sunshine, July has the most sunshine of the year.
The month with the highest UV index is July, with an average maximum UV index of 6.
August, on average, is the warmest month, registering a high temperature of 82°F (27.8°C) and a low of 48.6°F (9.2°C).
August is the least humid month, with an average relative humidity of 60%.
December is the coldest month, with an average high-temperature of 42.8°F (6°C) and an average low-temperature of 28.6°F (-1.9°C).
December is the month with the most rainfall. Rain falls for 15.3 days and accumulates 3.82" (97mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 6min of daylight.
With an average of 5h of sunshine, December has the least sunshine of the year.
Average temperature
Prospect, OR
The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (42.8°F).
The month with the highest average low temperature is August (48.6°F).
The coldest month (with the lowest average low temperature) is December (28.6°F).
Average pressure
Prospect, OR
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
30.06"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
30.01"Hg
- Average pressure in July:
30"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).
Average wind speed
Prospect, OR
- Average wind speed in January:
5mph - Average wind speed in February:
4.7mph - Average wind speed in March:
4.7mph - Average wind speed in April:
4.5mph - Average wind speed in May:
4.3mph - Average wind speed in June:
4.2mph
- Average wind speed in July:
4.2mph - Average wind speed in August:
4mph - Average wind speed in September:
3.9mph - Average wind speed in October:
4mph - Average wind speed in November:
4.5mph - Average wind speed in December:
4.7mph
The windiest month (with the highest average wind speed) is January (5mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).
Average humidity
Prospect, OR
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (60%).
Average rainfall
Prospect, OR
- Average rainfall in January:
3.7" - Average rainfall in February:
2.99" - Average rainfall in March:
2.91" - Average rainfall in April:
2.28" - Average rainfall in May:
1.73" - Average rainfall in June:
1.06"
- Average rainfall in July:
0.24" - Average rainfall in August:
0.35" - Average rainfall in September:
0.91" - Average rainfall in October:
1.5" - Average rainfall in November:
2.28" - Average rainfall in December:
3.82"
The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days
Prospect, OR
- Average rainfall days in January:
15 days - Average rainfall days in February:
13.9 days - Average rainfall days in March:
18.3 days - Average rainfall days in April:
16.2 days - Average rainfall days in May:
13.9 days - Average rainfall days in June:
9.3 days
- Average rainfall days in July:
3.8 days - Average rainfall days in August:
4.2 days - Average rainfall days in September:
5.6 days - Average rainfall days in October:
11.2 days - Average rainfall days in November:
13.3 days - Average rainfall days in December:
15.3 days
The month with the highest number of rainy days is March (18.3 days).
The month with the least rainy days is July (3.8 days).
Average snowfall
Prospect, OR
- Average snowfall in January:
5.51" - Average snowfall in February:
6.77" - Average snowfall in March:
3.07" - Average snowfall in April:
1.06" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.77").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Prospect, OR
- Average snowfall days in January:
4.3 days - Average snowfall days in February:
6.2 days - Average snowfall days in March:
4.6 days - Average snowfall days in April:
2.3 days - Average snowfall days in May:
0.2 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:
2 days - Average snowfall days in December:
5.4 days
The month with the highest number of snowfall days is February (6.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Prospect, OR
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 42min - Average daylight in June:
15h and 18min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
5h and 6min - Average sunshine in February:
5h and 12min - Average sunshine in March:
6h and 48min - Average sunshine in April:
8h and 48min - Average sunshine in May:
10h and 0min - Average sunshine in June:
10h and 54min
- Average sunshine in July:
11h and 54min - Average sunshine in August:
11h and 48min - Average sunshine in September:
10h and 24min - Average sunshine in October:
6h and 30min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days
Prospect, OR
- Average sunshine days in January:
13.8 days - Average sunshine days in February:
10 days - Average sunshine days in March:
10.2 days - Average sunshine days in April:
11.3 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
17.8 days
- Average sunshine days in July:
25.7 days - Average sunshine days in August:
25.2 days - Average sunshine days in September:
22.4 days - Average sunshine days in October:
17.6 days - Average sunshine days in November:
13.6 days - Average sunshine days in December:
11.8 days
The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is February (10 days).
Average UV index
Prospect, 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
Prospect, OR
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility
Prospect, OR
The months with the highest visibility are July, August and September (6mi).
The month with the lowest visibility is December (4mi).
