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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, in Roche Harbor, Washington, is a frosty winter month, with an average temperature varying between 41°F (5°C) and 45.3°F (7.4°C). Roche Harbor's coldest months, January, February and December, record an average high-temperature of 45.3°F (7.4°C). Weather in January »
Weather in February
February, the last month of the winter in Roche Harbor, is another chilly month, with an average temperature fluctuating between 45.3°F (7.4°C) and 40.5°F (4.7°C). Roche Harbor's lowest average temperatures are recorded in January, February and December, reaching a high of 45.3°F (7.4°C). Weather in February »
Weather in March
The first month of the spring, March, is also a frosty month in Roche Harbor, Washington, with an average temperature varying between 48.4°F (9.1°C) and 43°F (6.1°C). With March's advent, Roche Harbor sees an average high-temperature of a still frosty 48.4°F (9.1°C), subtly shifted from February's 45.3°F (7.4°C). Weather in March »
Weather in April
April is a fresh spring month in Roche Harbor, Washington, with an average temperature fluctuating between 52.2°F (11.2°C) and 46.2°F (7.9°C). April registers an average high-temperature of a fresh 52.2°F (11.2°C), slightly varied from March's 48.4°F (9.1°C). Weather in April »
Weather in May
The last month of the spring, May, is a mild month in Roche Harbor, Washington, with an average temperature fluctuating between 57.7°F (14.3°C) and 50.9°F (10.5°C). Roche Harbor in May denotes a subtle temperature transition, adjusting from an average high of a fresh 52.2°F (11.2°C) in April to a moderate 57.7°F (14.3°C). Weather in May »
Weather in June
The first month of the summer, June, is a comfortable month in Roche Harbor, Washington, with an average temperature ranging between max 61.3°F (16.3°C) and min 54°F (12.2°C). Roche Harbor marks the onset of June with an average high-temperature of a comfortable 61.3°F (16.3°C), subtly divergent from May's 57.7°F (14.3°C). Weather in June »
Weather in July
July, like June, in Roche Harbor, Washington, is another comfortable summer month, with an average temperature fluctuating between 57.2°F (14°C) and 64.9°F (18.3°C). July is the month when Roche Harbor, Washington, experiences its warmest temperatures, averaging a high of 64.9°F (18.3°C) and a low of 57.2°F (14°C). Weather in July »
Weather in August
The last month of the summer, August, is another comfortable month in Roche Harbor, Washington, with an average temperature varying between 64.4°F (18°C) and 57.7°F (14.3°C). The arrival of August brings an average high-temperature of a still refreshing 64.4°F (18°C), closely following the temperature pattern of July. Weather in August »
Weather in September
The first month of the autumn, September, is still a refreshing month in Roche Harbor, Washington, with an average temperature varying between 61.3°F (16.3°C) and 55.6°F (13.1°C). As September takes hold, the average high-temperature is a still comfortable 61.3°F (16.3°C), nearly mirroring that of the previous month. Weather in September »
Weather in October
October, the same as September, in Roche Harbor, Washington, is a moderate autumn month, with an average temperature varying between 50.9°F (10.5°C) and 55.4°F (13°C). The transition into October is accompanied by a slight temperature decrease, with the average high-temperature shifting from an enjoyable 61.3°F (16.3°C) in September to a still refreshing 55.4°F (13°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Roche Harbor, Washington, with an average temperature varying between 45.5°F (7.5°C) and 50.2°F (10.1°C). The arrival of November brings an average high-temperature of a cool 50.2°F (10.1°C), closely following the temperature pattern of October. Weather in November »
Weather in December
The first month of the winter, December, is still a chilly month in Roche Harbor, Washington, with an average temperature varying between 40.6°F (4.8°C) and 45.3°F (7.4°C). Lowest temperatures are observed in January, February and December, averaging a high-temperature of 45.3°F (7.4°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest time of year in Roche Harbor?
The temperature in Roche Harbor, Washington, hits its lowest levels in January, February and December, recording an average high-temperature of 45.3°F (7.4°C).
What are the most humid months in Roche Harbor?
The months with the highest humidity in Roche Harbor are January, August and September, with an average relative humidity of 79%.
How much does it rain in Roche Harbor?
Throughout the year, there are 167.7 rainfall days, and 23.46" (596mm) of precipitation is accumulated.
When does it snow in Roche Harbor?
Months with snowfall are January through March, November and December.
How many days does it snow in Roche Harbor?
Throughout the year, in Roche Harbor, there are 6.9 snowfall days, and 3.43" (87mm) of snow is accumulated.
What are the months with the lowest UV index in Roche Harbor?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the snowiest month in Roche Harbor?
February is the month with the most snowfall. Snow falls for 2.7 days and accumulates 1.77" (45mm) of snow.
When is Daylight Saving Time (DST) in Roche Harbor?
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.
What is the least humid month in Roche Harbor?
With an average relative humidity of 76%, April is the least humid month.
When it does not snow in Roche Harbor?
In Roche Harbor, snow does not fall in April through October.
When are the longest days in Roche Harbor?
With an average of 16h and 6min of daylight, June has the longest days of the year in Roche Harbor.
What is the hottest time of year in Roche Harbor?
Roche Harbor reaches its average highest temperatures in July, measuring 64.9°F (18.3°C) at the peak and 57.2°F (14°C) at the lowest.
What is the driest month in Roche Harbor?
July is the month with the least rainfall. Rain falls for 6.1 days and accumulates 0.43" (11mm) of precipitation.
What month has the most sunshine in Roche Harbor?
The month with the most sunshine in Roche Harbor, Washington, is July, with an average of 11.1h of sunshine.
What is the month with the highest UV index in Roche Harbor?
With an average maximum UV index of 5, July is the month with the highest UV index in Roche Harbor, Washington.
What is the wettest month in Roche Harbor?
November is the month with the most rainfall in Roche Harbor, Washington. Rain falls for 19.1 days and accumulates 3.43" (87mm) of precipitation.
What is the month with the shortest days in Roche Harbor?
The month with the shortest days in Roche Harbor is December, with an average of 8h and 24min of daylight.
What is the month with the least sunshine in Roche Harbor?
The month with the least sunshine in Roche Harbor, Washington, is December, with an average of 4.1h of sunshine.
Average temperature
Roche Harbor, WA
The warmest month (with the highest average high temperature) is July (64.9°F).
The months with the lowest average high temperature are January, February and December (45.3°F).
The month with the highest average low temperature is August (57.7°F).
The coldest month (with the lowest average low temperature) is February (40.5°F).
Average pressure
Roche Harbor, WA
- Average pressure in January:
30.07"Hg - Average pressure in February:
30.05"Hg - Average pressure in March:
30"Hg - Average pressure in April:
30.04"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
30.03"Hg
- Average pressure in July:
30.05"Hg - Average pressure in August:
30.02"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.02"Hg - Average pressure in December:
30.06"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).
Average wind speed
Roche Harbor, WA
- Average wind speed in January:
9.7mph - Average wind speed in February:
9.7mph - Average wind speed in March:
9.4mph - Average wind speed in April:
8.5mph - Average wind speed in May:
6.2mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
4.9mph - Average wind speed in September:
5.7mph - Average wind speed in October:
7.7mph - Average wind speed in November:
10.7mph - Average wind speed in December:
10.5mph
The windiest month (with the highest average wind speed) is November (10.7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity
Roche Harbor, WA
The months with the highest relative humidity are January, August and September (79%).
The month with the lowest relative humidity is April (76%).
Average rainfall
Roche Harbor, WA
- Average rainfall in January:
3.15" - Average rainfall in February:
2.87" - Average rainfall in March:
2.17" - Average rainfall in April:
1.69" - Average rainfall in May:
1.34" - Average rainfall in June:
0.91"
- Average rainfall in July:
0.43" - Average rainfall in August:
0.71" - Average rainfall in September:
1.34" - Average rainfall in October:
2.48" - Average rainfall in November:
3.43" - Average rainfall in December:
2.95"
The wettest month (with the highest rainfall) is November (3.43").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days
Roche Harbor, WA
- Average rainfall days in January:
17.3 days - Average rainfall days in February:
16.8 days - Average rainfall days in March:
20.2 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
12.3 days - Average rainfall days in June:
9.6 days
- Average rainfall days in July:
6.1 days - Average rainfall days in August:
5.3 days - Average rainfall days in September:
11.6 days - Average rainfall days in October:
15.5 days - Average rainfall days in November:
19.1 days - Average rainfall days in December:
17.6 days
The month with the highest number of rainy days is March (20.2 days).
The month with the least rainy days is August (5.3 days).
Average snowfall
Roche Harbor, WA
The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Roche Harbor, WA
- Average snowfall days in January:
1.5 days - Average snowfall days in February:
2.7 days - Average snowfall days in March:
0.7 days - Average snowfall days in April:
0.2 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:
1.3 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Roche Harbor, WA
- Average daylight in January:
8h and 5min - Average daylight in February:
10h and 1min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 4min - Average daylight in May:
15h and 2min - Average daylight in June:
16h and 1min
- Average daylight in July:
15h and 4min - Average daylight in August:
14h and 2min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 1min - Average daylight in December:
8h and 2min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 2min - Average sunshine in May:
9h and 4min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
11h and 1min - Average sunshine in August:
10h and 5min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 3min - Average sunshine in November:
4h and 4min - Average sunshine in December:
4h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days
Roche Harbor, WA
- Average sunshine days in January:
10.8 days - Average sunshine days in February:
8.9 days - Average sunshine days in March:
8.8 days - Average sunshine days in April:
11.4 days - Average sunshine days in May:
17.1 days - Average sunshine days in June:
18.1 days
- Average sunshine days in July:
24.3 days - Average sunshine days in August:
24.7 days - Average sunshine days in September:
17.4 days - Average sunshine days in October:
13.8 days - Average sunshine days in November:
8.7 days - Average sunshine days in December:
10.6 days
The month with the most sunshine days is August (24.7 days).
The month with the least sunshine days is November (8.7 days).
Average UV index
Roche Harbor, WA
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Roche Harbor, WA
The months with the most cloud cover are February and December (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility
Roche Harbor, WA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Roche Harbor, Washington, USA
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