Climate and monthly weather forecastMonroe, OR
Climate and monthly weather forecast
Weather in January
January, like December, is another chilly winter month in Monroe, Oregon, with an average temperature ranging between min 35.2°F (1.8°C) and max 48.6°F (9.2°C). As December transitions into January, the average high-temperature rests at a still chilly 48.6°F (9.2°C), maintaining a close resemblance to the previous month. Weather in January »Weather in February
The last month of the winter, February, is also a frosty month in Monroe, Oregon, with an average temperature ranging between min 35.1°F (1.7°C) and max 49.1°F (9.5°C). With the arrival of February, Monroe's average high-temperature registers at a still frosty 49.1°F (9.5°C), indicating a subtle variation from the previous month. Weather in February »Weather in March
The first month of the spring, March, is a cool month in Monroe, Oregon, with an average temperature fluctuating between 36.7°F (2.6°C) and 52.7°F (11.5°C). March's weather records an average high-temperature of a fresh 52.7°F (11.5°C), showing little deviation from February. Weather in March »Weather in April
April is a moderate spring month in Monroe, Oregon, with an average temperature ranging between min 37.6°F (3.1°C) and max 57.7°F (14.3°C). At the onset of April, Monroe records an average high-temperature of a mild 57.7°F (14.3°C), showing little deviation from the preceding month. Weather in April »Weather in May
May, the last month of the spring in Monroe, is a comfortable month, with temperature in the range of an average low of 41.2°F (5.1°C) and an average high of 65.5°F (18.6°C). Monroe experiences a minor temperature shift with the start of May, with average high-temperatures moving from a mild 57.7°F (14.3°C) in April to an enjoyable 65.5°F (18.6°C). Weather in May »Weather in June
June, the first month of the summer in Monroe, is an agreeable month, with an average temperature varying between 71.2°F (21.8°C) and 45.1°F (7.3°C). Monroe in June observes a minor temperature shift, with average high-temperatures adjusting from an enjoyable 65.5°F (18.6°C) in May to a pleasant 71.2°F (21.8°C). Weather in June »Weather in July
July in Monroe, Oregon, is a warm summer month, with an average temperature varying between 49.8°F (9.9°C) and 79.3°F (26.3°C). July introduces a minor temperature shift, with average high-temperatures adjusting from June's pleasant 71.2°F (21.8°C) to a moderately hot 79.3°F (26.3°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Monroe, Oregon, with an average temperature ranging between min 51.1°F (10.6°C) and max 81.1°F (27.3°C). With average temperatures fluctuating between a high of 81.1°F (27.3°C) and a low of 51.1°F (10.6°C), August stands out as the warmest month. In August, the average heat index is evaluated at 84.2°F (29°C). Weather in August »Weather in September
September, the first month of the autumn in Monroe, is also a moderately hot month, with temperature in the range of an average high of 73.6°F (23.1°C) and an average low of 48.6°F (9.2°C). September brings a slight decrease in the average high-temperature, shifting from 81.1°F (27.3°C) in August to a still warm 73.6°F (23.1°C). Weather in September »Weather in October
October, like September, in Monroe, Oregon, is another refreshing autumn month, with temperature in the range of an average low of 43.7°F (6.5°C) and an average high of 62.2°F (16.8°C). The arrival of October corresponds with a shift in temperature, down from a warm 73.6°F (23.1°C) in September to an enjoyable 62.2°F (16.8°C). Weather in October »Weather in November
The last month of the autumn, November, is another cool month in Monroe, Oregon, with temperature in the range of an average high of 51.6°F (10.9°C) and an average low of 38.8°F (3.8°C). November involves a decrease in temperature, down from a refreshing 62.2°F (16.8°C) in October to a cool 51.6°F (10.9°C). Weather in November »Weather in December
December, the first month of the winter in Monroe, is still a chilly month, with an average temperature varying between 34.2°F (1.2°C) and 45.7°F (7.6°C). The month of December, characterized by an average high of 45.7°F (7.6°C) and a low of 34.2°F (1.2°C), is recognized as the coldest. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Monroe, OR
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (45.7°F).
The month with the highest average low temperature is August (51.1°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).
Average pressure
Monroe, OR
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
30.08"Hg - Average pressure in May:
30.04"Hg - Average pressure in June:
30.04"Hg
- Average pressure in July:
30.04"Hg - Average pressure in August:
30.01"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed
Monroe, OR
- Average wind speed in January:
4.7mph - Average wind speed in February:
4.7mph - Average wind speed in March:
4.8mph - Average wind speed in April:
4.5mph - Average wind speed in May:
4.2mph - Average wind speed in June:
4.2mph
- Average wind speed in July:
4.1mph - Average wind speed in August:
3.9mph - Average wind speed in September:
3.8mph - Average wind speed in October:
4.3mph - Average wind speed in November:
4.7mph - Average wind speed in December:
4.7mph
The windiest month (with the highest average wind speed) is March (4.8mph).
The calmest month (with the lowest average wind speed) is September (3.8mph).
Average humidity
Monroe, OR
The months with the highest relative humidity are January, February, March and December (87%).
The month with the lowest relative humidity is August (68%).
Average rainfall
Monroe, OR
- Average rainfall in January:
3.9" - Average rainfall in February:
3.31" - Average rainfall in March:
3.62" - Average rainfall in April:
2.95" - Average rainfall in May:
1.81" - Average rainfall in June:
1.14"
- Average rainfall in July:
0.2" - Average rainfall in August:
0.35" - Average rainfall in September:
1.26" - Average rainfall in October:
2.56" - Average rainfall in November:
3.35" - Average rainfall in December:
4.37"
The wettest month (with the highest rainfall) is December (4.37").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days
Monroe, OR
- Average rainfall days in January:
17.3 days - Average rainfall days in February:
16.6 days - Average rainfall days in March:
20 days - Average rainfall days in April:
17.8 days - Average rainfall days in May:
13.1 days - Average rainfall days in June:
10.3 days
- Average rainfall days in July:
4.1 days - Average rainfall days in August:
3.6 days - Average rainfall days in September:
8.5 days - Average rainfall days in October:
14.9 days - Average rainfall days in November:
17.4 days - Average rainfall days in December:
18.2 days
The month with the highest number of rainy days is March (20 days).
The month with the least rainy days is August (3.6 days).
Average snowfall
Monroe, OR
The month with the highest snowfall is February (1.81").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Monroe, OR
- Average snowfall days in January:
0.8 days - Average snowfall days in February:
2 days - Average snowfall days in March:
0.8 days - Average snowfall days in April:
0.1 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:
0.1 days - Average snowfall days in December:
0.3 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Monroe, OR
- Average daylight in January:
9h and 18min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 48min - Average daylight in June:
15h and 30min
- Average daylight in July:
15h and 6min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 36min - Average daylight in December:
8h and 54min
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:
4h and 18min - Average sunshine in February:
4h and 0min - Average sunshine in March:
5h and 36min - Average sunshine in April:
7h and 0min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 18min
- Average sunshine in July:
11h and 0min - Average sunshine in August:
11h and 6min - Average sunshine in September:
9h and 18min - Average sunshine in October:
5h and 30min - Average sunshine in November:
4h and 48min - Average sunshine in December:
4h and 12min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days
Monroe, OR
- Average sunshine days in January:
12.2 days - Average sunshine days in February:
9.4 days - Average sunshine days in March:
9.4 days - Average sunshine days in April:
10.3 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
17.5 days
- Average sunshine days in July:
26.2 days - Average sunshine days in August:
25.3 days - Average sunshine days in September:
20.5 days - Average sunshine days in October:
14.5 days - Average sunshine days in November:
11.1 days - Average sunshine days in December:
11.6 days
The month with the most sunshine days is July (26.2 days).
The months with the least sunshine days are February and March (9.4 days).
Average UV index
Monroe, 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
Monroe, OR
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility
Monroe, OR
The months with the highest visibility are May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March, April and December (4mi).





