Climate and monthly weather forecastKeller, VA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Keller, Virginia, is a frosty winter month, with an average temperature fluctuating between 43.5°F (6.4°C) and 35.6°F (2°C). Keller records the coldest temperatures in January, averaging a high of 43.5°F (6.4°C) and a low of 35.6°F (2°C). Weather in January »Weather in February
The last month of the winter, February, is also a frosty month in Keller, Virginia, with an average temperature ranging between min 37°F (2.8°C) and max 45.1°F (7.3°C). February welcomes an average high-temperature of a still frosty 45.1°F (7.3°C), not much different from the preceding month. Weather in February »Weather in March
March, the first month of the spring in Keller, is also a frosty month, with temperature in the range of an average low of 42.3°F (5.7°C) and an average high of 49.6°F (9.8°C). A minor adjustment in Keller's average high-temperature is noted with the start of March, touching a still chilly 49.6°F (9.8°C) from February's 45.1°F (7.3°C). Weather in March »Weather in April
April is a mild spring month in Keller, Virginia, with temperature in the range of an average low of 51.6°F (10.9°C) and an average high of 58.8°F (14.9°C). Keller's transition into April brings a rise in the average high-temperature, moving from a chilly 49.6°F (9.8°C) in March to a moderate 58.8°F (14.9°C). Weather in April »Weather in May
The last month of the spring, May, is an enjoyable month in Keller, Virginia, with temperature in the range of an average high of 67.8°F (19.9°C) and an average low of 61.3°F (16.3°C). May witnesses a subtle temperature ascent, adjusting from a moderate 58.8°F (14.9°C) in April to a comfortable 67.8°F (19.9°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Keller, Virginia, with temperature in the range of an average high of 76.8°F (24.9°C) and an average low of 70.7°F (21.5°C). In Keller, the onset of June comes with an increased average high-temperature, moving from May's enjoyable 67.8°F (19.9°C) to a moderately hot 76.8°F (24.9°C). Weather in June »Weather in July
July, like June, in Keller, Virginia, is another warm summer month, with temperature in the range of an average high of 82°F (27.8°C) and an average low of 75.9°F (24.4°C). July is the warmest month, with an average high-temperature of 82°F (27.8°C) and an average low-temperature of 75.9°F (24.4°C). The average heat index in July is estimated at a tropical 87.8°F (31°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Keller, Virginia, with temperature in the range of an average low of 75.4°F (24.1°C) and an average high of 80.8°F (27.1°C). The arrival of August is marked by an average high-temperature of a still warm 80.8°F (27.1°C), bearing a close resemblance to July. Weather in August »Weather in September
September, the first month of the autumn in Keller, is still a warm month, with an average temperature fluctuating between 70.7°F (21.5°C) and 76.1°F (24.5°C). September observes an average high-temperature of a still warm 76.1°F (24.5°C), marking an insignificant difference from August's 80.8°F (27.1°C). Weather in September »Weather in October
October, the same as September, is another comfortable autumn month in Keller, Virginia, with an average temperature ranging between min 60.4°F (15.8°C) and max 67.1°F (19.5°C). The onset of October coincides with a reduction in the average high-temperature, falling from a moderately hot 76.1°F (24.5°C) in September to an enjoyable 67.1°F (19.5°C). Weather in October »Weather in November
The last month of the autumn, November, is another mild month in Keller, Virginia, with an average temperature fluctuating between 56.3°F (13.5°C) and 48.7°F (9.3°C). A shift in the average high-temperature occurs in November, reducing from a comfortable 67.1°F (19.5°C) in October to a moderate 56.3°F (13.5°C). Weather in November »Weather in December
December, the first month of the winter in Keller, is also a frosty month, with an average temperature ranging between max 49.1°F (9.5°C) and min 42.1°F (5.6°C). December is characterized by a mild reduction in the average high-temperature, from a moderate 56.3°F (13.5°C) in November to a chilly 49.1°F (9.5°C). Weather in December »Updated: Aug 12, 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
During the coldest month in Keller, January, temperatures average a high of 43.5°F (6.4°C) and a low of 35.6°F (2°C).
January and November, with an average relative humidity of 74%, are the least humid months.
Throughout the year, there are 161.5 rainfall days, and 26.06" (662mm) of precipitation is accumulated.
January through March and December are months with snowfall.
In Keller, during the entire year, snow falls for 5.6 days and aggregates up to 0.87" (22mm) of snow.
January is the month with the lowest UV index, with an average maximum UV index of 2.
The month with the most snowfall is February, when snow falls for 2 days and typically aggregates up to 0.51" (13mm) of snow.
The month with the least sunshine is February, with an average of 5.2h of sunshine.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
April through November are months without snowfall.
With an average relative humidity of 80%, May is the most humid month in Keller, Virginia.
June has the longest days of the year, with an average of 14h and 42min of daylight.
Keller notes the warmest temperatures in July, with a average high of 82°F (27.8°C) and a low of 75.9°F (24.4°C).
The month with the most sunshine is July, with an average of 11h of sunshine.
The months with the highest UV index are July and August, with an average maximum UV index of 7.
August is the month with the most rainfall in Keller. Rain falls for 17.4 days and accumulates 3.27" (83mm) of precipitation.
November is the month with the least rainfall. Rain falls for 10 days and accumulates 1.54" (39mm) of precipitation.
December has the shortest days of the year, with an average of 9h and 36min of daylight.
Average temperature
Keller, VA
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (43.5°F).
The month with the highest average low temperature is July (75.9°F).
The coldest month (with the lowest average low temperature) is January (35.6°F).
Average pressure
Keller, VA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
30.01"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
Keller, VA
- Average wind speed in January:
13.4mph - Average wind speed in February:
13mph - Average wind speed in March:
13.2mph - Average wind speed in April:
13mph - Average wind speed in May:
11.3mph - Average wind speed in June:
10.4mph
- Average wind speed in July:
9.7mph - Average wind speed in August:
9.5mph - Average wind speed in September:
11.3mph - Average wind speed in October:
12.4mph - Average wind speed in November:
13mph - Average wind speed in December:
12.6mph
The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is August (9.5mph).
Average humidity
Keller, VA
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall
Keller, VA
- Average rainfall in January:
1.57" - Average rainfall in February:
1.77" - Average rainfall in March:
1.69" - Average rainfall in April:
1.97" - Average rainfall in May:
2.17" - Average rainfall in June:
2.4"
- Average rainfall in July:
2.95" - Average rainfall in August:
3.27" - Average rainfall in September:
2.44" - Average rainfall in October:
2.48" - Average rainfall in November:
1.54" - Average rainfall in December:
1.81"
The wettest month (with the highest rainfall) is August (3.27").
The driest month (with the least rainfall) is November (1.54").
Average rainfall days
Keller, VA
- Average rainfall days in January:
9.3 days - Average rainfall days in February:
10 days - Average rainfall days in March:
14.2 days - Average rainfall days in April:
13.4 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
15.2 days
- Average rainfall days in July:
18.5 days - Average rainfall days in August:
17.4 days - Average rainfall days in September:
14.4 days - Average rainfall days in October:
11.5 days - Average rainfall days in November:
10 days - Average rainfall days in December:
12.3 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is January (9.3 days).
Average snowfall
Keller, VA
The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days
Keller, VA
- Average snowfall days in January:
1.4 days - Average snowfall days in February:
2 days - Average snowfall days in March:
0.8 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 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.1 days - Average snowfall days in December:
1.3 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Keller, VA
- Average daylight in January:
9h and 54min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 12min - Average daylight in June:
14h and 42min
- Average daylight in July:
14h and 30min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 12min - Average daylight in December:
9h and 36min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
5h and 30min - Average sunshine in February:
5h and 12min - Average sunshine in March:
7h and 0min - Average sunshine in April:
9h and 30min - Average sunshine in May:
9h and 48min - Average sunshine in June:
10h and 48min
- Average sunshine in July:
11h and 0min - Average sunshine in August:
10h and 48min - Average sunshine in September:
9h and 36min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days
Keller, VA
- Average sunshine days in January:
17.4 days - Average sunshine days in February:
14.7 days - Average sunshine days in March:
14.4 days - Average sunshine days in April:
15.5 days - Average sunshine days in May:
13.6 days - Average sunshine days in June:
12.1 days
- Average sunshine days in July:
10.8 days - Average sunshine days in August:
11 days - Average sunshine days in September:
13.3 days - Average sunshine days in October:
16.6 days - Average sunshine days in November:
17.5 days - Average sunshine days in December:
16.4 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (10.8 days).
Average UV index
Keller, VA
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover
Keller, VA
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility
Keller, VA
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).
