Climate and monthly weather forecastSouth Prairie, WA
Climate and monthly weather forecast
Weather in January
January, the same as December, is an icy winter month in South Prairie, Washington, with an average temperature ranging between min 31.3°F (-0.4°C) and max 42.1°F (5.6°C). January ushers in an average high-temperature of a still cold 42.1°F (5.6°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 South Prairie, Washington, with an average temperature varying between 42.1°F (5.6°C) and 30.6°F (-0.8°C). South Prairie's average high-temperature in February is a still cold 42.1°F (5.6°C), not differing from the temperature of January. Weather in February »Weather in March
March, the first month of the spring in South Prairie, is a chilly month, with an average temperature varying between 32.7°F (0.4°C) and 46.6°F (8.1°C). March's beginning signals an average high-temperature of a chilly 46.6°F (8.1°C), barely different from February's 42.1°F (5.6°C). Weather in March »Weather in April
April is a fresh spring month in South Prairie, Washington, with an average temperature varying between 51.8°F (11°C) and 35.2°F (1.8°C). April begins with an average high-temperature of a fresh 51.8°F (11°C), reflecting close similarity to the preceding month. Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in South Prairie, Washington, with temperature in the range of an average low of 40.6°F (4.8°C) and an average high of 60.6°F (15.9°C). The commencement of May sees a minor shift in the average high-temperature, moving from a fresh 51.8°F (11°C) in April to a refreshing 60.6°F (15.9°C). Weather in May »Weather in June
June, the first month of the summer in South Prairie, is an enjoyable month, with an average temperature fluctuating between 43.5°F (6.4°C) and 65.5°F (18.6°C). South Prairie experiences an average high-temperature of a comfortable 65.5°F (18.6°C) in June, marking an insignificant shift from 60.6°F (15.9°C) in May. Weather in June »Weather in July
July in South Prairie, Washington, is a warm summer month, with an average temperature varying between 47.5°F (8.6°C) and 73.4°F (23°C). South Prairie's transition into July is noticed by a slight rise in the average high-temperature, advancing from a comfortable 65.5°F (18.6°C) in June to a moderately hot 73.4°F (23°C). Weather in July »Weather in August
August, the last month of the summer in South Prairie, is also a moderately hot month, with an average temperature varying between 49.3°F (9.6°C) and 74.1°F (23.4°C). August, recording an average high temperature of 74.1°F (23.4°C) and a low temperature of 49.3°F (9.6°C), is South Prairie's warmest month. Weather in August »Weather in September
The first month of the autumn, September, is also an enjoyable month in South Prairie, Washington, with an average temperature varying between 67.1°F (19.5°C) and 46°F (7.8°C). The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a moderately hot 74.1°F (23.4°C) in August to a comfortable 67.1°F (19.5°C). Weather in September »Weather in October
October, the same as September, in South Prairie, Washington, is another mild autumn month, with an average temperature varying between 41.4°F (5.2°C) and 56.3°F (13.5°C). October implies a gentle temperature shift, with average high-temperatures reducing from September's enjoyable 67.1°F (19.5°C) to a mild 56.3°F (13.5°C). Weather in October »Weather in November
November, the last month of the autumn in South Prairie, is another chilly month, with temperature in the range of an average high of 46°F (7.8°C) and an average low of 35.6°F (2°C). In the transition to November, South Prairie observes a drop in the average high-temperature, moving from a mild 56.3°F (13.5°C) in October to a chilly 46°F (7.8°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in South Prairie, Washington, with an average temperature varying between 29.8°F (-1.2°C) and 39.9°F (4.4°C). December, with average temperatures reaching a high of 39.9°F (4.4°C) and a low of 29.8°F (-1.2°C), is the coldest month. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
South Prairie, WA
The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is December (39.9°F).
The month with the highest average low temperature is August (49.3°F).
The coldest month (with the lowest average low temperature) is December (29.8°F).
Average pressure
South Prairie, WA
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
30.04"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
30.01"Hg
- Average pressure in July:
30.02"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).
Average wind speed
South Prairie, WA
- Average wind speed in January:
5.3mph - Average wind speed in February:
4.8mph - Average wind speed in March:
4.8mph - Average wind speed in April:
4.3mph - Average wind speed in May:
3.9mph - Average wind speed in June:
3.7mph
- Average wind speed in July:
3.7mph - Average wind speed in August:
3.6mph - Average wind speed in September:
3.9mph - Average wind speed in October:
4.3mph - Average wind speed in November:
4.9mph - Average wind speed in December:
4.8mph
The windiest month (with the highest average wind speed) is January (5.3mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity
South Prairie, WA
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is July (70%).
Average rainfall
South Prairie, WA
- Average rainfall in January:
6.1" - Average rainfall in February:
4.49" - Average rainfall in March:
4.76" - Average rainfall in April:
3.46" - Average rainfall in May:
2.44" - Average rainfall in June:
1.81"
- Average rainfall in July:
0.63" - Average rainfall in August:
0.83" - Average rainfall in September:
1.69" - Average rainfall in October:
4.57" - Average rainfall in November:
5.04" - Average rainfall in December:
6.1"
The wettest months (with the highest rainfall) are January and December (6.1").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days
South Prairie, WA
- Average rainfall days in January:
18.5 days - Average rainfall days in February:
17.7 days - Average rainfall days in March:
21.2 days - Average rainfall days in April:
19.7 days - Average rainfall days in May:
14.9 days - Average rainfall days in June:
14.2 days
- Average rainfall days in July:
7.7 days - Average rainfall days in August:
7.6 days - Average rainfall days in September:
12 days - Average rainfall days in October:
17 days - Average rainfall days in November:
19.6 days - Average rainfall days in December:
19 days
The month with the highest number of rainy days is March (21.2 days).
The month with the least rainy days is August (7.6 days).
Average snowfall
South Prairie, WA
The month with the highest snowfall is February (5.2").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
South Prairie, WA
- Average snowfall days in January:
3.8 days - Average snowfall days in February:
6.3 days - Average snowfall days in March:
4.4 days - Average snowfall days in April:
1.6 days - Average snowfall days in May:
0.1 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:
1.5 days - Average snowfall days in December:
4.5 days
The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are June, July, August and October (0 days).
Average daylight / Average sunshine
South Prairie, WA
- Average daylight in January:
9h and 0min - Average daylight in February:
10h and 18min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 36min - Average daylight in May:
15h and 6min - Average daylight in June:
15h and 54min
- Average daylight in July:
15h and 30min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 24min - Average daylight in December:
8h and 36min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in January:
4h and 6min - Average sunshine in February:
4h and 6min - Average sunshine in March:
5h and 30min - Average sunshine in April:
7h and 12min - Average sunshine in May:
8h and 30min - Average sunshine in June:
8h and 54min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 42min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 18min - Average sunshine in November:
4h and 18min - Average sunshine in December:
4h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).
Average sunshine days
South Prairie, WA
- Average sunshine days in January:
10 days - Average sunshine days in February:
7.9 days - Average sunshine days in March:
7.8 days - Average sunshine days in April:
8.7 days - Average sunshine days in May:
13.5 days - Average sunshine days in June:
13.4 days
- Average sunshine days in July:
21.2 days - Average sunshine days in August:
21 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
12.5 days - Average sunshine days in November:
8.6 days - Average sunshine days in December:
9.7 days
The month with the most sunshine days is July (21.2 days).
The month with the least sunshine days is March (7.8 days).
Average UV index
South Prairie, WA
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover
South Prairie, WA
The month with the most cloud cover is March (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility
South Prairie, WA
The months with the highest visibility are April, May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, November and December (4mi).





