Climate and monthly weather forecastGrandview, WA
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Grandview, Washington, with an average temperature ranging between max 37°F (2.8°C) and min 27°F (-2.8°C). The transition from December to January sees an average high-temperature of a still icy 37°F (2.8°C), indicating a minor variance from the prior month. Weather in January »Weather in February
February, the last month of the winter in Grandview, is also a wintry month, with an average temperature fluctuating between 42.4°F (5.8°C) and 30.7°F (-0.7°C). Grandview experiences a minor temperature shift with the start of February, with average high-temperatures moving from an icy 37°F (2.8°C) in January to a still wintry 42.4°F (5.8°C). Weather in February »Weather in March
March, the first month of the spring in Grandview, is a cool month, with an average temperature varying between 52.3°F (11.3°C) and 36.5°F (2.5°C). As March begins, there is an increase in the average high-temperature, moving from a wintry 42.4°F (5.8°C) in February to a fresh 52.3°F (11.3°C). Weather in March »Weather in April
April in Grandview, Washington, is a refreshing spring month, with an average temperature ranging between max 61.3°F (16.3°C) and min 42.1°F (5.6°C). Grandview experiences a temperature shift with the start of April, with average high-temperatures moving from a fresh 52.3°F (11.3°C) in March to a refreshing 61.3°F (16.3°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Grandview, Washington, with an average temperature varying between 49.5°F (9.7°C) and 71.1°F (21.7°C). In May, the meteorological conditions change with the average high-temperature moving from an enjoyable 61.3°F (16.3°C) in April to an agreeable 71.1°F (21.7°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Grandview, Washington, with an average temperature varying between 78.3°F (25.7°C) and 55°F (12.8°C). As Grandview transitions into June, a marginal rise in the average high-temperature is observed, moving from a pleasant 71.1°F (21.7°C) in May to a warm 78.3°F (25.7°C). Weather in June »Weather in July
July is a hot summer month in Grandview, Washington, with an average temperature ranging between max 87.8°F (31°C) and min 61.5°F (16.4°C). July temperatures tend to peak at an average high of 87.8°F (31°C) and dip to a low of 61.5°F (16.4°C). Weather in July »Weather in August
August, the last month of the summer in Grandview, is another hot month, with an average temperature ranging between max 87.1°F (30.6°C) and min 62.2°F (16.8°C). August denotes a minimal variation in the average high-temperature to a still hot 87.1°F (30.6°C) from July's 87.8°F (31°C). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Grandview, Washington, with an average temperature fluctuating between 75.9°F (24.4°C) and 55.6°F (13.1°C). The shift from August to September involves a decrease in the average high-temperature, dropping from a tropical 87.1°F (30.6°C) to a warm 75.9°F (24.4°C). Weather in September »Weather in October
October, the same as September, in Grandview, Washington, is another refreshing autumn month, with an average temperature fluctuating between 45°F (7.2°C) and 60.3°F (15.7°C). The changeover to October signals a significant decrease in the average high-temperature, dropping from a moderately hot 75.9°F (24.4°C) in September to a moderate 60.3°F (15.7°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Grandview, Washington, with temperature in the range of an average low of 34.7°F (1.5°C) and an average high of 46.9°F (8.3°C). Transition into November marks a drop in the average high-temperature, moving from a mild 60.3°F (15.7°C) in October to a chilly 46.9°F (8.3°C). Weather in November »Weather in December
December, the first month of the winter in Grandview, is still a cold month, with an average temperature fluctuating between 26.2°F (-3.2°C) and 36.5°F (2.5°C). December, noted for its average high-temperature of 36.5°F (2.5°C) and an average low-temperature of 26.2°F (-3.2°C), is considered the coldest month. Weather in December »Updated: Aug 6, 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
With an average relative humidity of 82%, January is the most humid month.
Throughout the year, there are 80.1 rainfall days, and 4.84" (123mm) of precipitation is accumulated.
Months with snowfall are January through March, November and December.
In Grandview, during the entire year, snow falls for 12.4 days and aggregates up to 3.94" (100mm) of snow.
With an average of 4.9h of sunshine, January has the least sunshine of the year.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Grandview.
February is the month with the most snowfall. Snow falls for 2.8 days and accumulates 1.34" (34mm) 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.
In Grandview, snow does not fall in April through October.
The month with the most rainfall is May, when the rain falls for 9.2 days and typically aggregates up to 0.71" (18mm) of precipitation.
The month with the longest days is June, with an average of 15h and 42min of daylight.
Grandview's temperatures tend to reach their peak averages in July, with a high of 87.8°F (31°C) and a low of 61.5°F (16.4°C).
With an average relative humidity of 37%, July is the least humid month.
July is the month with the least rainfall. Rain falls for 4 days and accumulates 0.2" (5mm) of precipitation.
The months with the most sunshine are July and August, with an average of 12h of sunshine.
July is the month with the highest UV index, with an average maximum UV index of 7.
December is the coldest month, with the temperature often reaching an average high of 36.5°F (2.5°C) and an average low of 26.2°F (-3.2°C).
With an average of 8h and 42min of daylight, December has the shortest days of the year.
Average temperature
Grandview, WA
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is December (36.5°F).
The month with the highest average low temperature is August (62.2°F).
The coldest month (with the lowest average low temperature) is December (26.2°F).
Average pressure
Grandview, WA
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
30"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.96"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 (29.92"Hg).
Average wind speed
Grandview, WA
- Average wind speed in January:
5.4mph - Average wind speed in February:
6.3mph - Average wind speed in March:
7.6mph - Average wind speed in April:
8.5mph - Average wind speed in May:
7.6mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
6.8mph - Average wind speed in August:
6.6mph - Average wind speed in September:
6.8mph - Average wind speed in October:
6.3mph - Average wind speed in November:
6.2mph - Average wind speed in December:
5.2mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is December (5.2mph).
Average humidity
Grandview, WA
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is July (37%).
Average rainfall
Grandview, WA
- Average rainfall in January:
0.51" - Average rainfall in February:
0.47" - Average rainfall in March:
0.43" - Average rainfall in April:
0.28" - Average rainfall in May:
0.71" - Average rainfall in June:
0.51"
- Average rainfall in July:
0.2" - Average rainfall in August:
0.31" - Average rainfall in September:
0.28" - Average rainfall in October:
0.43" - Average rainfall in November:
0.28" - Average rainfall in December:
0.43"
The wettest month (with the highest rainfall) is May (0.71").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days
Grandview, WA
- Average rainfall days in January:
7.9 days - Average rainfall days in February:
6.5 days - Average rainfall days in March:
8.8 days - Average rainfall days in April:
8.3 days - Average rainfall days in May:
9.2 days - Average rainfall days in June:
5.7 days
- Average rainfall days in July:
4 days - Average rainfall days in August:
4.3 days - Average rainfall days in September:
5 days - Average rainfall days in October:
7.6 days - Average rainfall days in November:
6.5 days - Average rainfall days in December:
6.3 days
The month with the highest number of rainy days is May (9.2 days).
The month with the least rainy days is July (4 days).
Average snowfall
Grandview, WA
The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Grandview, WA
- Average snowfall days in January:
3.5 days - Average snowfall days in February:
2.8 days - Average snowfall days in March:
1.1 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 days - Average snowfall days in December:
3.9 days
The month with the highest number of snowfall days is December (3.9 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight / Average sunshine
Grandview, WA
- Average daylight in January:
9h and 6min - 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 24min - 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 24min - 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:
4h and 54min - Average sunshine in February:
5h and 30min - Average sunshine in March:
7h and 36min - Average sunshine in April:
10h and 0min - Average sunshine in May:
10h and 48min - 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 48min - Average sunshine in October:
6h and 36min - Average sunshine in November:
6h and 6min - Average sunshine in December:
5h and 18min
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: 4h and 54min).
Average sunshine days
Grandview, WA
- Average sunshine days in January:
20.1 days - Average sunshine days in February:
18.7 days - Average sunshine days in March:
19.3 days - Average sunshine days in April:
19.5 days - Average sunshine days in May:
19.9 days - Average sunshine days in June:
22 days
- Average sunshine days in July:
25.7 days - Average sunshine days in August:
24.2 days - Average sunshine days in September:
23.1 days - Average sunshine days in October:
22 days - Average sunshine days in November:
20.8 days - Average sunshine days in December:
20.5 days
The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is February (18.7 days).
Average UV index
Grandview, WA
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Grandview, WA
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility
Grandview, 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).
