Climate and monthly weather forecastRoosevelt, WA
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Roosevelt, Washington, with an average temperature ranging between min 27.5°F (-2.5°C) and max 37.9°F (3.3°C). As January takes its course, Roosevelt's average high-temperature registers at a still wintry 37.9°F (3.3°C), closely aligning with the preceding month. Weather in January »Weather in February
The last month of the winter, February, is also a wintry month in Roosevelt, Washington, with an average temperature varying between 29.7°F (-1.3°C) and 41.7°F (5.4°C). The beginning of February records an average high-temperature of a still wintry 41.7°F (5.4°C), almost echoing the conditions of the previous month. Weather in February »Weather in March
March, the first month of the spring in Roosevelt, is a chilly month, with an average temperature fluctuating between 34.5°F (1.4°C) and 49.6°F (9.8°C). The shift into March is characterized by a subtle rise in the average high-temperature, transitioning from February's icy 41.7°F (5.4°C) to a frosty 49.6°F (9.8°C). Weather in March »Weather in April
April in Roosevelt, Washington, is a moderate spring month, with temperature in the range of an average low of 39.9°F (4.4°C) and an average high of 58.6°F (14.8°C). The arrival of April brings a change in Roosevelt's weather, with average high-temperatures moving from March's frosty 49.6°F (9.8°C) to a mild 58.6°F (14.8°C). Weather in April »Weather in May
May, the last month of the spring in Roosevelt, is a pleasant month, with temperature in the range of an average low of 47.1°F (8.4°C) and an average high of 68.5°F (20.3°C). The arrival of May brings an increase in high-temperatures, moving from a mild 58.6°F (14.8°C) in April to a pleasant 68.5°F (20.3°C). Weather in May »Weather in June
June, the first month of the summer in Roosevelt, is a warm month, with an average temperature varying between 52.7°F (11.5°C) and 75.6°F (24.2°C). The shift into June is accompanied by a modest temperature increase, with the average high-temperature edging up from a pleasant 68.5°F (20.3°C) in May to a warm 75.6°F (24.2°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Roosevelt, Washington, with an average temperature fluctuating between 60.3°F (15.7°C) and 85.5°F (29.7°C). July, recording an average high temperature of 85.5°F (29.7°C) and a low temperature of 60.3°F (15.7°C), is Roosevelt's warmest month. July's mean heat index is estimated at 84.2°F (29°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Roosevelt, Washington, with an average temperature varying between 61.3°F (16.3°C) and 84.7°F (29.3°C). As August unfolds, the average high-temperature reaches a still moderately hot 84.7°F (29.3°C), hinting at a slight fluctuation from the previous month. Weather in August »Weather in September
September, the first month of the autumn in Roosevelt, is also a moderately hot month, with an average temperature fluctuating between 73.9°F (23.3°C) and 54.9°F (12.7°C). Roosevelt observes a minor decrease in the average high-temperature with the arrival of September, falling from August's 84.7°F (29.3°C) to a still warm 73.9°F (23.3°C). Weather in September »Weather in October
October, like September, is a moderate autumn month in Roosevelt, Washington, with an average temperature fluctuating between 44.4°F (6.9°C) and 58.6°F (14.8°C). The start of October is characterized by a significant decrease in the average high-temperature, moving from a moderately hot 73.9°F (23.3°C) in September to a refreshing 58.6°F (14.8°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Roosevelt, Washington, with an average temperature ranging between max 46.4°F (8°C) and min 34.3°F (1.3°C). Transition from October to November is accompanied by a temperature drop, with average high-temperatures decreasing from a mild 58.6°F (14.8°C) to a chilly 46.4°F (8°C). Weather in November »Weather in December
December, the first month of the winter in Roosevelt, is still a cold month, with an average temperature ranging between max 36.5°F (2.5°C) and min 26.6°F (-3°C). December, with an average high of 36.5°F (2.5°C) and a low of 26.6°F (-3°C), signifies the coldest month of the year. Weather in December »Updated: Jun 3, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
With an average relative humidity of 83%, January is the most humid month.
The month with the most rainfall is January, when the rain falls for 11.3 days and typically aggregates up to 1.1" (28mm) of precipitation.
Throughout the year, there are 107.9 rainfall days, and 8.46" (215mm) of precipitation is accumulated.
Months with snowfall are January through March, November and December.
Throughout the year, there are 15.8 snowfall days, and 9.69" (246mm) of snow is accumulated.
The month with the least sunshine is January, with an average of 5.2h of sunshine.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
February is the month with the most snowfall. Snow falls for 4.3 days and accumulates 3.86" (98mm) 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.
April through October are months without snowfall.
June has the longest days of the year, with an average of 15h and 42min of daylight.
The months with the highest UV index in Roosevelt, Washington, are June and July, with an average maximum UV index of 6.
July temperatures tend to peak at an average high of 85.5°F (29.7°C) and dip to a low of 60.3°F (15.7°C).
The months with the lowest humidity are July and August, with an average relative humidity of 40%.
The month with the least rainfall is July, when the rain falls for 4.4 days and typically collects 0.24" (6mm) of precipitation.
July and August, with an average of 12h of sunshine, are months with the most sunshine in Roosevelt, Washington.
December stands out as Roosevelt's coldest month, with an average high-temperature of 36.5°F (2.5°C) and a low-temperature of 26.6°F (-3°C).
The month with the shortest days is December, with an average of 8h and 42min of daylight.
Average temperature
Roosevelt, WA
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (36.5°F).
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is December (26.6°F).
Average pressure
Roosevelt, WA
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
30.01"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.93"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.15"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed
Roosevelt, WA
- Average wind speed in January:
6.3mph - Average wind speed in February:
7.5mph - Average wind speed in March:
8.2mph - Average wind speed in April:
9.1mph - Average wind speed in May:
8.5mph - Average wind speed in June:
9.2mph
- Average wind speed in July:
8.1mph - Average wind speed in August:
7.7mph - Average wind speed in September:
7.5mph - Average wind speed in October:
7.3mph - Average wind speed in November:
7.3mph - Average wind speed in December:
6.5mph
The windiest month (with the highest average wind speed) is June (9.2mph).
The calmest month (with the lowest average wind speed) is January (6.3mph).
Average humidity
Roosevelt, WA
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are July and August (40%).
Average rainfall
Roosevelt, WA
- Average rainfall in January:
1.1" - Average rainfall in February:
1.06" - Average rainfall in March:
0.79" - Average rainfall in April:
0.63" - Average rainfall in May:
1.06" - Average rainfall in June:
0.67"
- Average rainfall in July:
0.24" - Average rainfall in August:
0.39" - Average rainfall in September:
0.31" - Average rainfall in October:
0.75" - Average rainfall in November:
0.51" - Average rainfall in December:
0.94"
The wettest month (with the highest rainfall) is January (1.1").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days
Roosevelt, WA
- Average rainfall days in January:
11.3 days - Average rainfall days in February:
9.6 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
11.6 days - Average rainfall days in May:
10.9 days - Average rainfall days in June:
6.7 days
- Average rainfall days in July:
4.4 days - Average rainfall days in August:
5 days - Average rainfall days in September:
5.5 days - Average rainfall days in October:
9.9 days - Average rainfall days in November:
9.7 days - Average rainfall days in December:
11 days
The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is July (4.4 days).
Average snowfall
Roosevelt, WA
The month with the highest snowfall is February (3.86").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Roosevelt, WA
- Average snowfall days in January:
4 days - Average snowfall days in February:
4.3 days - Average snowfall days in March:
1.4 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:
0.1 days - Average snowfall days in October:
0 days - Average snowfall days in November:
1.2 days - Average snowfall days in December:
4.8 days
The month with the highest number of snowfall days is December (4.8 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight / Average sunshine
Roosevelt, WA
- Average daylight in January:
9h and 12min - Average daylight in February:
10h and 24min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 36min - Average daylight in May:
15h and 0min - Average daylight in June:
15h and 42min
- Average daylight in July:
15h and 18min - Average daylight in August:
14h and 6min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 30min - Average daylight in December:
8h and 42min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in January:
5h and 12min - Average sunshine in February:
5h and 24min - Average sunshine in March:
7h and 30min - Average sunshine in April:
10h and 0min - Average sunshine in May:
11h and 0min - Average sunshine in June:
11h and 30min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 54min - Average sunshine in October:
6h and 30min - Average sunshine in November:
6h and 12min - Average sunshine in December:
5h and 24min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days
Roosevelt, WA
- Average sunshine days in January:
15.1 days - Average sunshine days in February:
14 days - Average sunshine days in March:
14.9 days - Average sunshine days in April:
15.5 days - Average sunshine days in May:
18.4 days - Average sunshine days in June:
20.8 days
- Average sunshine days in July:
25 days - Average sunshine days in August:
23.6 days - Average sunshine days in September:
22.1 days - Average sunshine days in October:
19.2 days - Average sunshine days in November:
17.5 days - Average sunshine days in December:
15.3 days
The month with the most sunshine days is July (25 days).
The month with the least sunshine days is February (14 days).
Average UV index
Roosevelt, WA
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Roosevelt, WA
The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility
Roosevelt, WA
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
